id int64 5 1.93M | title stringlengths 0 128 | description stringlengths 0 25.5k | collection_id int64 0 28.1k | published_timestamp timestamp[s] | canonical_url stringlengths 14 581 | tag_list stringlengths 0 120 | body_markdown stringlengths 0 716k | user_username stringlengths 2 30 |
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1,868,650 | Making AI Pandit | Sync and upload any Sanskrit language image book | 0 | 2024-05-29T07:43:20 | https://dev.to/abhineet_raj_8238b58d9ad0/making-ai-pandit-3pd4 | Sync and upload any Sanskrit language image book | abhineet_raj_8238b58d9ad0 | |
1,870,362 | What is AWS Organization? | In today's digital landscape, where organizations are increasingly relying on cloud infrastructure to... | 0 | 2024-05-30T12:19:35 | https://dev.to/jay_tillu/what-is-aws-organization-416o | cloud, cloudcomputing, aws, devops | In today's digital landscape, where organizations are increasingly relying on cloud infrastructure to power their operations, managing multiple AWS accounts efficiently and securely has become a priority. AWS Organizations is a powerful service designed to streamline the management of multiple AWS accounts within an organization. In this blog, we'll delve into the features, benefits, and best practices of AWS Organizations, exploring how it empowers businesses to achieve greater efficiency and control in their cloud operations.
## Why do you need AWS Organizations?
As your organization dives deeper into the cloud with AWS, the number of accounts you manage can quickly multiply. Development teams spin up accounts for projects, different departments require isolated environments, and mergers or acquisitions bring new accounts into the fold. This sprawl can lead to chaos:
- **Security nightmares:** Inconsistent configurations and forgotten accounts create vulnerabilities.
- **Billing confusion:** Sorting through individual account bills becomes a time-consuming headache.
- **Resource mismanagement:** Underutilized accounts waste resources while others struggle with capacity.
## Organizational Units
AWS Organizations helps you to consolidate and manage multiple AWS accounts within a central location. When you create an organization, AWS Organizations automatically creates a root, which is the parent container for all the accounts in your organization
In AWS Organizations, you can group accounts into organizational units (OUs) to make it easier to manage accounts with similar business or security requirements. When you apply a policy to an OU, all the accounts in the OU automatically inherit the permissions specified in the policy.
By organizing separate accounts into OUs, you can more easily isolate workloads or applications that have specific security requirements. For instance, if your company has accounts that can access only the AWS services that meet certain regulatory requirements, you can put these accounts into one OU. Then, you can attach a policy to the OU that blocks access to all other AWS services that do not meet the regulatory requirements.
### How OUs help you manage your AWS accounts
- **Grouping by Function:** Instead of mirroring your company's structure, OUs allow you to group accounts based on what they do. For instance, you can have separate OUs for Security, Development, Production, or specific applications.
- **Centralized Policy Application:** Once accounts are grouped by function in OUs, you can implement Service Control Policies (SCPs) at the OU level. These SCPs define what services and actions users can perform within the accounts belonging to that OU. This simplifies policy management and ensures consistency across related accounts.
- **Resource Sharing:** OUs enable you to share resources like Amazon S3 buckets or Amazon RDS instances across accounts within the same OU. This fosters collaboration within teams working on the same projects or functionalities.
### Planning Your OU Structure
There's no one-size-fits-all approach to structuring your OUs. However, some best practices can guide your planning:
- **Start with Foundational OUs:** Create initial OUs for Security and Infrastructure to centralize controls for these critical areas.
- **Workloads OU:** Establish a separate OU for application workloads, with potential sub-OUs for different applications or environments.
- **Focus on Function over Hierarchy:** Prioritize grouping accounts based on what they do rather than mimicking your company's reporting structure.
By following these practices, you can leverage OUs within AWS Organizations to create a well-organized and manageable multi-account cloud environment.
## Benefits of AWS Organizations
AWS Organizations offers a centralized solution to manage your growing herd of AWS accounts.
### 1. Simplify Account Management
- **Effortless Onboarding:** Invite new accounts or create them within your organization with a few clicks.
- **Centralized Governance:** Define naming conventions and enforce IAM best practices across all accounts.
- **Consolidated Billing:** Pay for your entire organization's cloud usage with a single bill.
### 2. Enhance Security and Compliance
- **Standardized Security Policies:** Implement organization-wide policies to restrict actions, enforce encryption, and ensure service usage adheres to compliance standards.
- **Centralized Logging:** Gain a bird's-eye view of activity across all accounts with services like AWS CloudTrail Lake for simplified auditing and security investigations.
### 3. Optimize Resource Allocation
- **Organizational Units (OUs):** Group accounts based on function or project for targeted policy application and easier resource management.
- **Resource Sharing:** Share services like Amazon S3 buckets or Amazon RDS instances across accounts within an OU for efficient collaboration.
### 4. Maintain Cost Control
- **Cost Allocation Tags:** Track costs associated with specific departments, projects, or applications using tags for better budgeting and resource allocation decisions.
- **Consolidated Billing Reports:** Analyze spending patterns across your organization and identify cost-saving opportunities.
## Best Practices for AWS Organizations
### Account Structure
- **Group by Function, Not Hierarchy:** Organize accounts based on what they do (security, infrastructure, workloads) instead of mirroring your company's reporting structure. This allows for more flexibility and future changes.
- **Start with Foundational OUs:** Create initial Organizational Units (OUs) for Security and Infrastructure to centralize controls for these critical areas.
- **Workloads OU:** Establish a separate OU for application workloads (production, development, testing). Further, subdivide this OU for different applications or environments as needed.
### Standardization and Governance
- **Use the Management Account Wisely:** Reserve the management account solely for organization-wide tasks and don't store resources there.
- **Standardize Naming Conventions:** Implement consistent naming rules for accounts, OUs, and resources for better organization and identification.
- **Enforce Security Policies:** Utilize Service Control Policies (SCPs) to enforce security best practices and compliance standards across all accounts.
### Cost Management and Optimization
- **Consolidated Billing:** Leverage consolidated billing to simplify expense management and identify cost trends across your organization.
- **Cost Allocation Tags:** Implement cost allocation tags to categorize resources and track spending by department, project, or application.
- **Rightsize Accounts:** Regularly review account usage and adjust account types (free tier, paid) to optimize costs.
## What is the AWS Service Control Policy?
A Service Control Policy (SCP) is a feature provided by AWS Organizations that allows organizations to establish and enforce central policies across multiple AWS accounts within their organization. SCPs help administrators control which AWS services and features are available to users and resources within each account, regardless of the individual account's IAM (Identity and Access Management) policies.
Here are key aspects of Service Control Policies:
- **Scope:** SCPs apply at the organizational level and affect all member accounts within the AWS Organization. They provide a centralized mechanism for administrators to enforce security, compliance, and governance policies across multiple AWS accounts.
- **Restrictive Access Controls:** SCPs operate by specifying the permissions that are allowed or denied for each AWS service or feature. Administrators can use SCPs to restrict access to certain AWS services, APIs, actions, or resources, helping to enforce security and compliance requirements.
- **Hierarchy:** SCPs can be applied hierarchically within the organizational structure defined by AWS Organizations. This means that SCPs applied at a higher level in the hierarchy affect all accounts below it, unless overridden by more permissive policies applied at lower levels.
- **Precedence:** SCPs have precedence over IAM policies. Even if an IAM policy grants permissions to a user or role within an AWS account, those permissions can be further restricted or denied by the SCP applied to the account or organizational unit.
- **Enforcement:** SCPs are enforced by the AWS Organizations service, which evaluates and enforces the policies across all member accounts. This ensures consistent policy enforcement and helps maintain a secure and compliant environment.
- **Use Cases:** SCPs can be used for various purposes, including enforcing regulatory compliance, preventing unauthorized access to sensitive resources, limiting access to specific AWS services based on business requirements, and maintaining security best practices across the organization.
Overall, Service Control Policies provide administrators with a powerful tool for centrally managing and enforcing access controls across multiple AWS accounts within an organization. By leveraging SCPs, organizations can enhance security, enforce compliance, and maintain governance standards across their AWS environment.
### Conclusion
AWS Organizations stands as a cornerstone for organizations seeking to streamline the management of their cloud infrastructure. By leveraging its powerful features, such as OUs, SCPs, and consolidated billing, organizations can achieve greater efficiency, control, and security in their cloud operations. As businesses continue to embrace cloud technologies, AWS Organizations remains an indispensable tool for orchestrating multi-account environments and unlocking the full potential of the AWS cloud.
### Learn More About Cloud Computing
- [What is AWS IAM?](https://blogs.jaytillu.in/what-is-aws-identity-and-access-management-iam)
- [What is the AWS Shared Responsibility Model?](https://blogs.jaytillu.in/what-is-the-aws-shared-responsibility-model)
- [What is Amazon DMS?](https://blogs.jaytillu.in/understanding-amazon-data-migration-service-dms)
- [What is Amazon RedShift?](https://blogs.jaytillu.in/what-is-amazon-redshift)
- [What is Amazon Aurora?](https://blogs.jaytillu.in/understanding-amazon-aurora)
- [What is Amazon DynamoDB?](https://blogs.jaytillu.in/what-is-amazon-dynamodb)
- [What is Amazon RDS?](https://blogs.jaytillu.in/understanding-amazon-relational-database-service-rds)
- [What is Amazon Elastic File System?](https://blogs.jaytillu.in/what-is-amazon-elastic-file-system-efs)
- [Understanding Amazon S3 Storage Classes](https://blogs.jaytillu.in/understanding-amazon-s3-storage-classes)
- [What is Amazon S3?](https://blogs.jaytillu.in/what-is-amazon-simple-storage-service-s3)
- [What is Amazon EBS?](https://blogs.jaytillu.in/what-is-amazon-elastic-block-storage)
| jay_tillu |
1,870,361 | Trusted House Removalists In Australia | Choosing Trusted House Removals ensures a seamless and stress-free moving experience. With years of... | 0 | 2024-05-30T12:17:40 | https://dev.to/smitta/trusted-house-removalist-5bb1 | Choosing Trusted [House Removals] (https://teamremovals.com.au/services/house-removalists-australia/) ensures a seamless and stress-free moving experience. With years of industry expertise, we pride ourselves on delivering top-notch services tailored to meet your unique needs. Our team of professional movers handles your belongings with the utmost care, ensuring safe and efficient transport.
We offer a comprehensive range of services, including packing, loading, transport, and unpacking, designed to make your move as smooth as possible. Our state-of-the-art equipment and well-maintained fleet guarantee reliability and safety throughout the entire process.
Customer satisfaction is our top priority. We provide transparent pricing with no hidden fees, and our friendly staff is always ready to assist you with any questions or concerns. Whether you're moving locally or interstate, Trusted House Removalist is your reliable partner for a hassle-free relocation. Trust us to make your next move the best one yet. | smitta | |
1,870,359 | Secure Payment Gateway with PCI Compliance & Revenue Management | Any company that handles electronic payments must have a payment gateway in place to provide easy and... | 0 | 2024-05-30T12:12:11 | https://dev.to/david_mark_61fd09e0f67a52/secure-payment-gateway-with-pci-compliance-revenue-management-2k2a | Any company that handles electronic payments must have a payment gateway in place to provide easy and secure payment processing. A payment gateway's efficacy is mostly dependent on its ability to provide strong billing and revenue management tools while also adhering to PCI (Payment Card Industry Data Security Standards).
**PCI Standards**
PCI standards are essential for maintaining the security of card transactions and protecting sensitive customer data. Compliance with these standards is mandatory for businesses that handle credit card information. A payment gateway adhering to [PCI standards](https://www.onepay.com/pci-dss-compliance/?utm_source=dev&utm_medium=seo&utm_campaign=blog_submission&utm_id=enosh) ensures that all transactions are encrypted and secure, safeguarding against data breaches and fraud. This compliance builds customer trust, as it demonstrates a commitment to data security and reduces the risk of financial penalties associated with non-compliance.
**Billing and Revenue Management**
Effective billing and revenue management are vital for the smooth operation of any business. A payment gateway with advanced billing features automates the invoicing process, reducing administrative tasks and ensuring timely payments. This automation helps in maintaining accurate financial records and improves cash flow management. Additionally, revenue management tools provide insights into sales trends, customer behavior, and financial performance, enabling businesses to make informed decisions and strategize for growth.
**Choosing the Right Payment Gateway**
When selecting a payment gateway, businesses should prioritize PCI standards compliance to ensure the highest level of security for their transactions. Moreover, the gateway should offer comprehensive [billing and revenue management](https://www.onepay.com/customized-billing-plans/?utm_source=dev&utm_medium=seo&utm_campaign=blog_submission&utm_id=enosh) features to streamline financial operations. These features should include automated invoicing, recurring billing, and detailed financial reporting.
An ideal payment gateway will also integrate seamlessly with existing business systems, enhancing operational efficiency and customer experience. For instance, integration with accounting software can simplify the reconciliation process, while customer management tools can enhance customer service by providing detailed transaction histories and billing information.
**Conclusion**
Any business needs a payment gateway that is compliant with PCI requirements and provides powerful tools for billing and revenue management. In addition to guaranteeing safe transactions, this kind of gateway expedites financial processes, increasing productivity and client pleasure. By selecting a gateway with these features, companies may protect confidential information, efficiently handle their cash, and promote long-term expansion.
| david_mark_61fd09e0f67a52 | |
1,870,358 | Why You Need To Hire Android Developers? | Android apps are not only affordable but also highly functional and accessible, making them the top... | 0 | 2024-05-30T12:10:47 | https://dev.to/custom_websitedevelopmen/why-you-need-to-hire-android-developers-3f56 | webdev, javascript, programming, android | Android apps are not only affordable but also highly functional and accessible, making them the top choice for many business owners. However, developing a successful Android app requires skilled developers. Many clients face challenges when trying to hire Android developers. This blog post outlines the do's and don'ts of hiring Android developers, providing insights into the hiring process, required skills, and common mistakes to avoid.
https://technocratshorizons.com/hire-android-app-developers/ | custom_websitedevelopmen |
1,870,357 | 🛒 Share Your Thoughts and Win Big with the Publix Customer Satisfaction Survey! 🗣️🎉 | Hello Publix shoppers! 🌟 Are you ready to make your voice heard and help shape the future of your... | 0 | 2024-05-30T12:10:05 | https://dev.to/jude_law_2bfb19143395d490/share-your-thoughts-and-win-big-with-the-publix-customer-satisfaction-survey-lc4 | Hello Publix shoppers! 🌟 Are you ready to make your voice heard and help shape the future of your favorite grocery store? Publix is committed to providing an exceptional shopping experience, and your feedback is essential in achieving this goal. We’re excited to invite you to participate in the Publix Customer Satisfaction Survey!
**Why Your Feedback is Important
**At Publix, our customers' satisfaction is our top priority. We constantly strive to improve our products, services, and overall shopping experience. By sharing your honest opinions, you help us understand what we’re doing well and where we need to make improvements. Your feedback directly influences the decisions we make to better serve you and our community.
**What’s in It for You?
**Participating in the Publix Customer Satisfaction Survey is not only beneficial for us but also rewarding for you! Here are some reasons why you should take the survey:
Voice Your Opinions: This is your chance to tell us what you love about Publix and what could be improved. Your feedback is invaluable in helping us enhance your shopping experience.
Win Big: As a token of our appreciation, every completed survey entry gives you a chance to win a $1,000 Publix gift card. Just imagine the groceries and goodies you could get!
Quick & Easy: The survey is designed to be quick and straightforward. It only takes a few minutes of your time, but your feedback will have a lasting impact.
**How to Participate
**Participating in the Publix Customer Satisfaction Survey is simple and convenient. Follow these easy steps:
Shop at Publix: After your next visit, keep your receipt.
Visit the Survey Site: [Go to Publix Survey](https://publixsurvey.net/)
Enter Details: Use the information from your receipt to enter the survey.
Share Your Thoughts: Answer a few questions about your shopping experience.
Submit & Enter: Complete the survey and submit it to enter the sweepstakes for a chance to win the $1,000 gift card.
**Tips for a Successful Survey Submission
**To ensure your survey submission is valid and effective, keep these tips in mind:
Be Honest: Your genuine feedback is what helps us improve. Don’t hesitate to share both positive and constructive comments.
Take Your Time: While the survey is quick, take a moment to reflect on your experience to provide thoughtful answers.
Check Your Receipt: Make sure you enter all the required information from your receipt correctly.
**The Impact of Your Feedback
**Every piece of feedback we receive is a step towards making Publix a better place to shop. Your insights help us understand your needs and preferences, enabling us to make informed decisions about our products and services. This collaborative effort ensures that each shopping experience is better than the last.
**A Win-Win Opportunity
**By participating in the Publix Customer Satisfaction Survey, you’re not just helping us serve you better—you’re also getting a chance to win a $1,000 gift card. It’s a win-win situation! So why wait? Take a few minutes out of your day to share your thoughts and enter for a chance to win big. | jude_law_2bfb19143395d490 | |
1,870,356 | Dehradun famous bakery | At Doon Memories, we are specialized in making 100% eggless cakes and pastries, so that you can have... | 0 | 2024-05-30T12:08:28 | https://dev.to/doonmemoriesbakers/dehradun-famous-bakery-3jgk | At Doon Memories, we are specialized in making 100% eggless cakes and pastries, so that you can have a stress-free bite every time. At Doon Memories we believe in not just serving pastries but a sweet basket of memories!
[https://doonmemories.com/]
#HandcraftedCakes #CakeDelivery #CelebrateWithCake #OnlineBirthdayCakeDelivery #Doonmemories | doonmemoriesbakers | |
1,870,355 | Velo Hand Dryers | VELO Hand Dryers is a division of HPA Group Pty Ltd, an Australian family-owned business that has... | 0 | 2024-05-30T12:06:21 | https://dev.to/velohanddryers/velo-hand-dryers-5c0k | VELO Hand Dryers is a division of HPA Group Pty Ltd, an Australian family-owned business that has been operating in Sydney for approximately 25 years. We import and distribute a wide range of state-of-the-art European-engineered and manufactured energy-efficient hand dryers and washroom accessories to suit a wide variety of environments in the Australasian market. VELO hand dryers are designed by Europe’s leading laboratories to ensure the highest level of quality, reliability and energy efficiency.
At Velo Hand Dryers we have the largest range of hand dryers and washroom accessories. Our products are designed to meet the requirements of a wide variety of customers including distributors, contractors, interior designers, architects, facility managers and end users. For more details Visit our website.
https://www.velohanddryers.com.au/ | velohanddryers | |
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| redetvgeniall_db9a21e00f7 |
1,870,353 | 36 Most Asked Microservice Interview Questions | Since the tech boom 2015, microservices have emerged as a revolutionary architectural approach,... | 0 | 2024-05-30T12:03:07 | https://dev.to/akashnagpal/36-most-asked-microservice-interview-questions-38i3 | microservices, interview, programming, cloudcomputing | Since the tech boom 2015, microservices have emerged as a revolutionary architectural approach, transforming how applications are designed, developed, and deployed. A survey by Statista shows that in 2021, 45 percent of respondents stated that data analytics/business intelligence applications use microservices.
Several reasons will make Microservices the perfect domain if you are considering switching technology or learning something new. Let’s discuss the top 36 Microservices Interview Questions asked to both freshers and experienced developers in different interviews.
## Top Microservices Interview Questions
Discover the essential microservices interview questions to boost your preparation for upcoming job interviews. Covering a range of topics from fundamentals to complex scenarios, equip yourself with the knowledge needed to excel in your next interview with ease.
## 1 What is microservices architecture?
Microservices architecture breaks an application into smaller, self-contained services, each responsible for a particular aspect of functionality. These services communicate using well-defined APIs (Application Programming Interfaces) or messaging protocols. Although standardization inside an organization is possible, each service is often launched individually, frequently using its own technological stack or programming language.
## 2 Explain key features of microservice architecture.
The main features of the microservice architecture are:
* **Decentralized Development:** Services operate independently, promoting autonomy.
* **Service Modularity:** Applications are divided into small, focused services for easier management.
* **Loose Coupling: **Defined APIs reduce dependencies, enabling independent evolution.
* **Scalability and Resilience: **Services can scale independently, ensuring fault isolation.
* **Agility and Technology Diversity: **Allows rapid development cycles with diverse technology usage.
## 3 Why would you opt for microservices architecture?
Microservices architecture offers plenty of pros. Here are a few of them:
* Microservices can adapt easily to other frameworks or technologies.
* Failure of a single process does not affect the entire system.
* Provides support to big enterprises as well as small teams.
* Can be deployed independently and in relatively less time.
## 4 What are the main components of microservices?
The primary elements of Microservices or Microservices architecture encompass:
* Containerization, Clustering, and Orchestration
* Infrastructure as Code (IaC) Concept
* Cloud Infrastructure
* API Gateway
* Enterprise Service Bus
* Service Delivery
## 5 Explain the working of microservice architecture.
Microservice Architecture consists of the following components:
* **Client:** Initiates requests and interacts with the system.
* **API Gateway: **Acts as an entry point, routing requests to the appropriate services.
* Services (Service 1, Service 2, …, Service N):
* Each service represents a distinct functional module or capability.
* They communicate through APIs (RESTful, gRPC, etc.) or message queues.
* **Static Content:** Contains all of the system’s content.
* **Management:** Services are balanced on nodes and failures are identified.
* **Service Discovery:** A guide to discovering the routes of communication between microservices.
* **Content Delivery Network:** Includes a distributed network of proxy servers and their data centres.
* **Remote Service:** Provides remote access to data or information on networked computers and devices.
*Consider checking out our blog on [Microservices Design Principles](https://www.lambdatest.com/blog/microservices-design-principles/?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=blog).*
## 6 How does a microservice architecture work in terms of modules?
The mechanism of a Microservice architecture involves breaking down an application into several modules, each capable of independently executing specific tasks.
Here’s an overview of how the Microservice architecture operates:
* The application is divided into separate small modules, each responsible for a unique function, and these modules are loosely connected.
* These modules are distributed across different clouds and data centers.
* Each module operates as an autonomous service or process, allowing seamless replacement, updates, or removal without disrupting the entire application.
* Applications have the flexibility to expand and adapt in response to evolving requirements.
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## 7 What do you understand by monolithic architecture?
Monolithic architecture refers to a traditional software development approach in which an entire application is built as a unified unit. In a monolithic architecture, all the components and functionalities of the application, such as user interface, business logic, and data access, are tightly integrated into a single codebase and deployed as a single executable package.
## 8 Differentiate between monolithic vs microservices architecture.
Monolithic Architecture involves developing applications as a single, tightly integrated unit, limiting scalability and flexibility. In contrast, Microservices Architecture breaks down applications into smaller, independent services, offering enhanced scalability, flexibility, and ease of maintenance. Let’s have a look at the key differences between the [Monolithic vs Microservices Architectures](https://www.lambdatest.com/blog/monolithic-vs-microservices-architecture/?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=blog):
## 9 What deployment strategies are commonly employed in the domain of Microservices?
Common deployment strategies in the domain of microservices include:
* **Blue-Green Deployment:** Running two identical production environments (blue and green), allowing seamless switching between them for updates or rollbacks.
* **Canary Deployment:** Gradual rollout of updates to a subset of users or traffic, enabling validation of changes before full deployment.
* **Rolling Deployment: **Incremental updates, where new versions are gradually deployed across servers or instances, reducing downtime.
* **Shadow Deployment:** Mirroring production traffic to a new version for testing without affecting the live environment.
## 10 What is Spring Cloud?
Spring Cloud is a key player in the Microservices architecture. It’s a framework that facilitates applications’ rapid construction and integration with external systems. It provides tools for discovering, routing, and deploying microservices within a cloud environment. This makes managing and scaling your microservices architecture a more streamlined process.
For typical use cases, Spring Cloud provides some out-of-the-box experience and a set of extensive features mentioned below:
* Versioned and distributed configuration
* Discovery of service registration
* Service-to-service calls
* Routing
* Circuit breakers and load balancing
* Cluster state and leadership election
* Global locks and distributed messaging
## 11 What Is Spring Boot?
Spring Boot is an open-source Java-based framework that simplifies setting up and developing robust, production-grade applications. It is beneficial for creating microservices, as it provides a fast way to set up applications, reducing development and [unit testing](https://www.lambdatest.com/learning-hub/unit-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=learning_hub) time.
It’s also compatible with other Java frameworks and offers features like auto-configuration, REST API support, and embedded servers2.
Here are some of the key features of Spring Boot:
* **Autoconfiguration:** Spring Boot automatically configures many of the beans and settings that your application needs based on the dependencies you include.
* **Embedded servers:** Spring Boot applications can be packaged as JAR files that include an embedded web server, such as Tomcat or Jetty.
* **Starters: **Spring Boot provides a set of “starter” dependencies you can add to your project to get the right libraries for common tasks, such as web development, data access, and security.
* **Actuator:** Spring Boot provides a built-in set of endpoints that you can use to monitor and manage your application, such as health checks, metrics, and configuration.
## 12 How do you override a spring boot project’s default properties?
We can override a spring boot project’s default properties by specifying the properties in ***application.properties***.
For example — In Spring MVC applications, we’ll have to specify the suffix and prefix. This can be done by entering the properties mentioned below in application.properties.
For suffix — spring.mvc.view.suffix: .jsp
For prefix – spring.mvc.view.prefix: /WEB-INF/
## 13 What does an Actuator do in Spring Boot?
In Spring Boot, the Actuator is a set of production-ready management and monitoring endpoints that provide various insights into the application’s internals. It offers various built-in HTTP endpoints and metrics that can be used for monitoring, health checks, auditing, and managing your application. The Actuator provides essential information about the application’s health, metrics, environment, configuration, and more, facilitating easier administration and troubleshooting.
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## 14 Which embedded containers are supported by spring boot?
Whenever you are creating a Java Application, deployment can be done by two methods:
* By using an external application container
* You can also embed the container inside your jar file.
Spring Boot contains Jetty, Tomcat, and Undertow servers, all of which are embedded:
* Jetty — Used in many projects, Eclipse Jetty can be embedded in frameworks, application servers, tools, and clusters.
* Tomcat — Apache Tomcat is an open-source JavaServer page implementation that works well with embedded systems.
* Undertow — A flexible and prominent web server that uses small single handlers to develop a web server.
## 15 How is spring security implemented in a spring boot application?
Implementing Spring Security in a Spring Boot application involves 3 steps — configuring security settings, authentication, and authorization.
**Step-1 Adding Spring Security Dependency:**
Include the Spring Security dependency in the project’s pom.xml (Maven) or build.gradle (Gradle) file. To get started with Spring Security, add the following dependency to your Spring Boot project’s build file (Maven or Gradle):
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
**Note:** After adding the above dependency, Spring Boot will automatically configure Spring Security with default settings.
**Step-2 Creating Security Configuration**
Create a security configuration class by extending **WebSecurityConfigurerAdapter** and override its **configure **method to define security rules, authentication, and authorization configurations.
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/public/**").permitAll()
.anyRequest().authenticated()
.and()
.formLogin()
.loginPage("/login")
.permitAll()
.and()
.logout()
.logoutUrl("/logout")
.permitAll();
}
}
**Step-3 Defining Authentication Providers:**
Configure authentication by specifying user credentials or integrating with authentication providers like databases, LDAP, OAuth, etc., based on the application’s requirements.
Code Example (In-memory Authentication):
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth
.inMemoryAuthentication()
.withUser("user")
.password("{noop}password")
.roles("USER");
}
}
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## 16 What do you mean by End-to-End testing of microservices?
[End to End Testing](https://www.lambdatest.com/learning-hub/end-to-end-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=learning_hub)(E2E) validates all the processes in the workflow to check if everything is working as expected. Regarding microservices, E2E testing validates the entire system’s functionality, including all interconnected microservices, databases, and external dependencies. It helps identify integration issues, dependencies, and inconsistencies that might not be apparent when testing individual microservices in isolation.
## 17 What is Semantic Monitoring?
Semantic monitoring (a.k.a synthetic monitoring), is the practice of regularly running a portion of an automated test for an application on the live production system. These tests’ results are subsequently sent to a monitoring service, which flags an alert if it notices any anomalies.
## 18 What is Eureka in microservices?
Eureka is a service registry and discovery tool developed by Netflix, designed specifically for use in a microservices architecture. It is part of Netflix’s OSS (Open Source Software) stack and is used for managing and locating services in a dynamic, distributed environment.
Microservices are required to register themselves within the Eureka server, enabling the server to maintain a comprehensive record of all client applications operating across various ports and IP addresses.
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## 19 How can you set up service discovery?
Service discovery can be set up in several ways, and one efficient method is by using Netflix’s Eureka. This approach is not only straightforward but also lightweight, ensuring it doesn’t burden the application. Moreover, it’s compatible with a wide array of web applications.
Setting up Eureka involves two main steps:
* **Client configuration:** Client configuration can be done easily by using the property files. In the classpath, Eureka searches for eureka-client.properties. It also searches for overrides caused by the environment in environment-specific property files.
* **Server configuration: **For server configuration, you have to configure the client first. Once that is done, the server fires up a client which is used to find other servers. The Eureka server, by default, uses the Client configuration to find the peer server.
## 20 Why would you need reports & dashboards in microservices?
Reports and dashboards are mainly used to monitor and upkeep microservices. Multiple tools help to serve this purpose. [Reports](https://www.lambdatest.com/blog/advanced-guide-on-writing-a-bug-report/?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=blog) and dashboards can be used to:
* find out which microservices expose what resources.
* find out the services that are impacted whenever changes in a component occur.
* provide an easy point that can be accessed whenever documentation is required.
* review the versions of the components that are deployed.
* To obtain a sense of maturity and compliance from the components.
## 21 How does PACT work?
PACT is an open-source testing tool. It helps in testing the interactions between consumers and service providers. It offers support for numerous languages, such as Ruby, Java, Scala, .NET, JavaScript, and Swift/Objective-C.
It works through the following key principles:
* Consumer-Driven Contracts
* Consumer Testing
* PACT file generation
* Services’ Mocking and Testing
* Integration into CI/CD
* Compatibility between the consumer and the provider
## 22 Define Domain-driven design
Domain-driven design (DDD) refers to an approach that focuses on designing software systems by emphasizing a deep understanding of the business domain. It aims to align software development with the business domain’s complexities, enabling the creation of more effective and maintainable microservices-based architectures. The main focus remains on the core domain logic. Complex designs are detected based on the domain’s model.
The core fundamentals of DDD are:
* DDD focuses mostly on domain logic and the domain itself.
* Complex designs are completely based on the domain’s model.
* To improve the design of the model and fix any emerging issues, DDD constantly works in collaboration with domain experts.
## 23 What are coupling and cohesion?
Coupling and Cohesion are fundamental concepts in software architecture. Coupling refers to the degree of interdependence between software modules. For example, a lower coupling means that each component is independent and changes in one will not affect the others. On the other hand, Cohesion refers to how closely the responsibilities of a module or component are related to each other. For example, higher cohesion means that each module is responsible for a single task or function.
A well-designed application should aim for low coupling and high cohesion. Low coupling ensures that each service operates independently, minimizing the knowledge they need about each other. This independence makes the system more robust and easier to maintain. High cohesion means that all the related logic is kept within a single service, preventing unnecessary communication between services which could impact performance.
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## 24 What is OAuth?
Open Authorization Protocol, otherwise known as OAuth, helps to access client applications using third-party protocols like Facebook, GitHub, etc via HTTP. You can also share resources between different sites without the requirement of key-value credentials.
OAuth allows the account information of the end user to be used by a third party like Facebook while keeping it secure (without using or exposing the user’s password). It acts more like an intermediary on the user’s behalf while providing a token to the server for accessing the required information.
## 25 Why do we need containers for microservices?
Containers serve as valuable tools for resource allocation and sharing, often regarded as the most efficient and straightforward approach for independently managing microservices in the development and deployment phases. Containers enable resource-efficient operations, supporting multiple services on a single host. For example, Docker is used to encapsulate the microservice in the image of a container. Without any additional dependencies or effort, microservices can use these elements.
## 26 What are the ways to access RESTful microservices?
Accessing RESTful Microservices can be achieved through two primary methods:
1. **Load-Balanced Rest Template: **This method involves using a rest template that is load-balanced. It ensures efficient distribution of network traffic across multiple servers, enhancing the performance and reliability of applications.
2. **Multiple Microservices:** This approach involves using multiple microservices. Each microservice is designed to perform a specific task, and together, they form a complete application.
## 27 What are some major roadblocks for microservices testing?
Talking about the cons, here is another one of the microservices interview questions you may be ready for, which will be around the challenges faced while testing microservices.
* The tester should have a thorough understanding of all the inbound and outbound processes before he starts writing the test cases for integration testing.
* When independent teams are working on different functionalities, collaboration can prove to be quite a struggling task. It can be tough to find an idle time window to perform a complete round of [regression testing](https://www.lambdatest.com/learning-hub/regression-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_25&utm_term=bw&utm_content=learning_hub).
* With an increasing number of microservices, the complexity of the system also increases.
* During the transition from monolithic architecture, testers must ensure that there is no disruption in the internal communication among the components.
## 28 What are some of the common mistakes made while transitioning to microservices from monolithic architecture?
Transitioning from a monolithic architecture to microservices can be complex, and several common mistakes might occur during this process:
* Insufficient consideration of data management, testing, communication, and security aspects, leading to operational complexities and inconsistencies.Often the developer fails to outline the current challenges.
* Failing to adopt suitable DevOps practices and robust Continuous Integration/Continuous Deployment (CI/CD) pipelines
* Responsibilities, timeline, and boundaries not clearly defined.
* Failing to implement and figure out the scope of automation from the very beginning.
* Overlooking security considerations, such as authentication, authorization, and data encryption
## 29 What are the fundamentals of microservices design?
This is probably one of the most frequently asked microservices interview questions. Here is what you need to keep in mind while answering it:
* Define a scope
* Combine loose coupling with high cohesion
* Create a unique service that will act as an identifying source, much like a unique key in a database table
* Create the correct API and take special care during integration.
* Restrict access to data and limit it to the required level
* Maintain a smooth flow between requests and response
* Automate most processes to reduce time complexity
* Keep the number of tables to a minimum level to reduce space complexity
* Monitor the architecture constantly and fix any flaw when detected.
* Data stores should be separated for each microservices.
* For each microservices, there should be an isolated build.
* Deploy microservices into containers.
* Servers should be treated as stateless.
You can also check out our blog on [Microservices Design Patterns](https://www.lambdatest.com/blog/microservices-design-patterns/).
## 30 Where do we use WebMVC test annotation?
WebMvcTest is used for unit testing Spring MVC applications. As the name suggests, it focuses entirely on Spring MVC components. For example,
@WebMvcTest(value = ToTestController.class, secure = false):
Here, the objective is to launch only ToTestController. Until the unit test has been executed, other mappings and controllers will not be launched.
## 31 What do you mean by Bounded Context?
In the context of Domain-Driven Design (DDD), a Bounded Context refers to a specific boundary within which a particular domain model is defined and applicable. DDD works with large models by disintegrating them into multiple bounded contexts. While it does that, it also explains the relationship between them explicitly. It represents a cohesive area or segment of a larger business domain where a set of closely related terms, concepts, rules, and interactions exist and are consistent.
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## 32 What are the different types of two-factor authentication?
There are several types of Two-Factor Authentication(2FA) methods:
* **Text Message (SMS):** A code is sent to the user’s registered mobile device via SMS, which they must enter to authenticate.
* **Authentication Apps (TOTP):** Time-based One-Time Password (TOTP) apps like Google Authenticator, Authy, or Microsoft Authenticator generate time-sensitive codes on the user’s mobile device.
* **Email-based Authentication: **A code or link is sent to the user’s registered email address, which they must input or follow to authenticate.
* **Biometric Authentication: **This involves using fingerprints, facial recognition, iris scans, or voice recognition as an authentication factor.
* **Push Notifications:** An authentication request is sent to the user’s mobile device, and upon approval, access is granted.
* **Phone Call Authentication:** Users receive a phone call providing a voice-based authentication code or request for confirmation.
## 33 What is a Client Certificate?
Client Certificate is a type of digital certificate usually used by client systems for making a request that is authenticated by a remote server. It plays an important role in authentication designs that are mutual and provide strong assurance of the identity of a requester. However, you should have a fully configured back-end service for authenticating your client certificate.
## 34 How to configure spring boot application logging?
Spring Boot comes with added support for Log4J2, Java Util Logging, and Logback. It is usually pre-configured as console output. They can be configured by only specifying ***logging.level*** in the ***application.properties*** file.
logging.level.spring.framework = Debug
## 35 How would you perform security testing of Microservices?
When it comes to security testing of microservices, it’s important to highlight that testing microservices as a whole might not be feasible due to their independent and decentralised nature. Each microservice operates as an individual component, which means that security testing needs to be performed on each service independently. There are three common approaches for security testing:
* **Individual Service Evaluation**: Assess each microservice independently for vulnerabilities using penetration testing and vulnerability scanning.
* **API and Data Security Verification:** Validate API security, data encryption, and secure storage practices within each microservice.
* **Authentication and Authorization Testing: **Verify authentication mechanisms and access controls to prevent unauthorised access.
* **Secure Communication and Integration Testing:** Ensure secure communication protocols and test inter-service interactions for potential vulnerabilities.
* **Scalability and Continuous Monitoring: **Assess security measures for scalability and resilience while implementing continuous monitoring for prompt issue identification and resolution.
## 36 What is idempotence and how is it used?
Idempotence characterizes an operation or function, ensuring that when performed repeatedly, it consistently produces the same outcome, irrespective of how many times it’s executed. Idempotence is mostly used as a data source or a remote service in a way that when it receives more than one instruction, it processes only one instruction. For example, when updating inventory levels after a purchase or processing payments, idempotence ensures that these operations remain consistent, preventing inaccuracies in inventory levels and maintaining accurate financial records.
| akashnagpal |
1,870,352 | Dockershim vs. Containerd: A Tale of Two Container Runtimes | In the ever-evolving world of containerization, two crucial components often get confused: Dockershim... | 0 | 2024-05-30T12:02:46 | https://dev.to/nuwan_weerasinhge_d93fd5b/dockershim-vs-containerd-a-tale-of-two-container-runtimes-42n |
In the ever-evolving world of containerization, two crucial components often get confused: Dockershim and containerd. While both play vital roles in managing containers, they serve distinct purposes. This article delves into their functionalities, diving deep into the differences between Dockershim and containerd.
### Unveiling Dockershim: The Docker Orchestrator Bridge
Dockershim, short for Docker runtime shim, was a specific component within the Kubernetes container orchestration platform. Its primary function was to act as a bridge between Kubernetes and Docker. Here's a breakdown of Dockershim's role:
* **Kubernetes Communication:** Kubernetes uses the Container Runtime Interface (CRI) to interact with container runtimes. Dockershim translated Kubernetes' CRI requests into commands that Docker, the container engine, understood.
* **Docker Engine Integration:** Dockershim relied on the functionalities of the Docker engine to manage container lifecycles (create, start, stop, delete). It essentially acted as a translator for Kubernetes to leverage Docker's capabilities.
**The Downside of Dockershim:**
While Dockershim served its purpose initially, it had limitations:
* **Vendor Lock-in:** It tied Kubernetes to Docker, hindering the use of alternative container runtimes like containerd or CRI-O.
* **Limited Functionality:** Dockershim only provided a subset of functionalities offered by a full-fledged container runtime like containerd.
### Enter containerd: The Universal Container Runtime
Containerd, on the other hand, is a lightweight container runtime that offers a low-level foundation for managing container images, processes, and storage. It boasts several key features:
* **Vendor Agnostic:** Unlike Dockershim, containerd is designed to be agnostic to the container orchestration platform or container engine. It implements the CRI, allowing various orchestrators like Kubernetes to interact with it directly.
* **Rich Functionality:** Containerd provides a broader range of features compared to Dockershim. It includes image management, process supervision, checkpointing, and sandboxing functionalities.
* **Standalone Operation:** Containerd can function independently of Docker or any other container engine. It offers a modular approach, allowing users to choose the image management tool that best suits their needs.
**The Rise of containerd:**
Containerd's flexibility and functionality made it a natural choice for container orchestration platforms seeking to move beyond vendor lock-in. As a result:
* **Kubernetes and containerd:** Kubernetes has transitioned away from Dockershim, making containerd the default container runtime for most deployments.
* **Docker embraces containerd:** Interestingly, Docker itself now leverages containerd under the hood, utilizing its functionalities for its own container management.
### Dockershim vs. containerd: A Head-to-Head Comparison
| Feature | Dockershim | containerd |
|-----------------|------------------------------------------------|----------------------------------------------------|
| Purpose | Bridge between Kubernetes and Docker engine | Low-level container runtime |
| Vendor Lock-in | Yes (ties to Docker) | No (vendor agnostic) |
| Functionality | Limited (subset of container runtime features) | Rich (image management, process supervision, etc.) |
| Standalone | No (requires Docker engine) | Yes (can operate independently) |
| Current Status | Deprecated (removed from Kubernetes v1.24) | Default container runtime for Kubernetes |
### Conclusion: Dockershim's Legacy and containerd's Future
While Dockershim served a critical role in the early days of Kubernetes, containerd's flexibility and feature set have made it the preferred choice for container orchestration platforms. As containerization continues to evolve, containerd is poised to remain a cornerstone technology, offering a robust and vendor-neutral foundation for managing containerized applications.
| nuwan_weerasinhge_d93fd5b | |
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1,869,510 | 🗳️ 5 Top Free Resources to Learn AWS Amplify | Exploring the best resources for learning AWS Amplify for free. Imagine building a... | 21,916 | 2024-05-30T12:00:00 | https://www.evergrowingdev.com/p/5-top-free-resources-to-learn-aws | aws, learning, beginners, codenewbie | ## Exploring the best resources for learning AWS Amplify for free.
---
Imagine building a full-stack application without worrying about setting up servers, configuring databases, or scalability issues.
That's what AWS Amplify offers developers, allowing us to focus on creating [great user experiences](https://dev.to/evergrowingdev/how-to-build-things-people-want-to-use-4g5n).
Cloud services have become very important for modern application development. AWS Amplify is a set of tools and services provided by Amazon Web Services.
It aims to simplify the process of building applications that can scale. This article will explore the top free resources to help you start learning AWS Amplify.
With these resources, you can use AWS Amplify's capabilities and make your development process [more productive](https://dev.to/evergrowingdev/15-japanese-techniques-for-developers-to-boost-your-productivity-2g55).
As the demand for cloud-based solutions grows, AWS Amplify stands out by enabling developers to integrate their applications with AWS services.
Whether you're an experienced developer or a beginner, this guide will provide you with the knowledge and tools needed to take advantage of AWS Amplify's power.
## What is AWS Amplify?
AWS Amplify is a set of tools and services offered by Amazon Web Services. Its purpose is to make it easier to develop full-stack applications that can scale as needed.
With AWS Amplify, you don't have to worry about complex setup or configurations.
### Core Components of AWS Amplify
The main components of AWS Amplify are the Amplify CLI, Amplify Console, and Amplify Libraries. The Amplify CLI is a command-line tool that allows you to create and manage your Amplify projects.
The Amplify Console is a user interface that provides visibility into your Amplify apps and their deployment status.
Amplify Libraries are a set of client libraries that integrate tightly with the Amplify CLI and Console.
These libraries provide functionality like authentication, data storage, APIs, and more to help build full-stack cloud-powered apps quickly.
## Why Learn AWS Amplify?
### Integration with AWS Services
AWS Amplify easily integrates with other popular AWS services like AWS Lambda, Amazon S3, and Amazon DynamoDB.
This integration allows developers to take advantage of the power of these services without having to deal with complex configurations.
For example, you can build serverless APIs with Lambda, store files in S3, and use DynamoDB for a flexible database - all within your Amplify app.
### Ease of Use
One of the main advantages of AWS Amplify is its user-friendly nature.
It has been designed to be accessible to both beginners and experienced developers alike.
Features like automatic backend provisioning and simple CLI commands abstract away much of the complex setup work.
This allows you to focus more on writing code for your app's core functionality.
### Rapid Development and Deployment
By simplifying the setup process and providing pre-built integration with AWS services, Amplify speeds up your development workflow.
You can quickly build, test, and deploy iterations of your application. Use cases like building a photo-sharing app or a serverless web app have seen significantly reduced development timelines when using AWS Amplify compared to traditional approaches.
Now that we know all about how great a platform AWS Amplify is for developers, let’s take a look at the top 5 resources for learning how to get started with AWS Amplify for free:
## #1 - [AWS Amplify Learning Path](https://amplify.aws/learn/)
The official [AWS Amplify learning path](https://amplify.aws/learn/) from the AWS Amplify Dev Center is a comprehensive resource designed to help developers get started with AWS Amplify.
It provides tutorials, guides, hands-on exercises, and real-world examples covering everything from initial setup to advanced features.
This learning path ensures you gain a solid understanding of the platform.
## #2 - [AWS Amplify Documentation](https://docs.amplify.aws/)
The [official documentation](https://docs.amplify.aws/) is a must-have resource for anyone working with AWS Amplify.
It offers detailed, step-by-step guides for integrating Amplify with various frameworks and technologies.
You'll find sections on getting started, API references, and best practices - essential for both beginners and experienced developers seeking in-depth technical information.
## #3 - [Udemy](https://udemy.com/topic/aws-amplify)
[Udemy](https://udemy.com/topic/aws-amplify) hosts a variety of courses focused on AWS Amplify, suitable for different skill levels from beginner to advanced.
These courses typically include video lectures, practical projects, and quizzes to reinforce your learning.
While some courses require payment, there are also many free options available, providing valuable insights into different aspects of AWS Amplify.
## #4 - [EdX](https://edx.org/learn/aws-amplify)
[EdX](https://edx.org/learn/aws-amplify) offers free online courses on AWS Amplify, created in collaboration with industry experts and academic institutions.
These courses cover fundamental concepts, practical applications, and advanced techniques, often accompanied by interactive labs and exercises to enhance your hands-on learning experience.
## #5 - [Class Central](https://www.classcentral.com/subject/aws-amplify?free=true)
[Class Central](https://www.classcentral.com/subject/aws-amplify?free=true) is a search engine that aggregates free AWS Amplify courses from various educational platforms.
It provides a curated list of free courses, including video tutorials, comprehensive guides, and project-based learning opportunities, making it easy for you to find high-quality resources to master AWS Amplify.
## Conclusion
With the rise of cloud computing and the increasing demand for scalable and robust applications, AWS Amplify stands out as a powerful solution for developers.
By offering a seamless integration with a wide range of AWS services and a user-friendly approach, Amplify helps developers to focus on what truly matters – creating outstanding user experiences.
The resources in this article provide a great starting point for anyone interested in mastering AWS Amplify.
Wherever you are in your journey, these free resources offer a wealth of knowledge, from introductory tutorials to advanced techniques, ensuring a smooth learning curve.
With these resources at your fingertips, you'll have the tools to truly get to grips with AWS Amplify and take your development skills to the next level.
Go full-stack faster with AWS Amplify.
From your fellow ever-growing dev,
Cherlock Code
---
💙 **If you liked this article...**
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Get more articles like this straight to your inbox.
[Let’s grow together 🌱](https://www.evergrowingdev.com/subscribe)
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---
And if you're looking for the right tools to build awesome things, check out [Devpages.io](https://devpages.io), **an ultimate hub I built with 100s of developer tools and resources** 🛠
| evergrowingdev |
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1,870,349 | Generative AI use cases: Powerful applications to boost your business | 🔥Future-proof your business with AI 🚀 Generative AI personalizes marketing, streamlines processes,... | 0 | 2024-05-30T11:56:40 | https://dev.to/devler_io/generative-ai-use-cases-powerful-applications-to-boost-your-business-1b68 | 🔥Future-proof your business with AI 🚀
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1,870,347 | Understanding CSS Units: px, rem, and em | In CSS, there are three common units used for sizing elements: px, rem, and em. Each of these units... | 0 | 2024-05-30T11:50:43 | https://dev.to/sidramaqbool/understanding-css-units-px-rem-and-em-390h | css, webdev, beginners, programming | In CSS, there are three common units used for sizing elements: `px`, `rem`, and `em`. Each of these units serves a different purpose and understanding their differences can help you create more flexible and responsive designs.
**1. rem (Root em)**
`rem` is a unit relative to the root element (`<html>`). It scales based on the font size of the root element, making it particularly useful for creating responsive designs. One `rem` is equal to the font size of the root element. For example:
```
html {
font-size: 16px;
}
h1 {
font-size: 2rem; /* 2 * 16px = 32px */
}
```
In this example, the font size of the `<html>` tag is set to 16px, so `1rem` equals 16px. Therefore, `2rem` for the `<h1> `element results in a font size of 32px.
**2. em**
`em` is relative to the font size of its parent element. This makes it useful for creating scalable designs where elements adjust based on their container's size. For example:
```
.parent {
font-size: 16px;
}
.child {
font-size: 0.8em; /* 0.8 * 16px = 12.8px */
}
```
Here, the `.child` element has a font size of 0.8 times the font size of its parent `.parent`, resulting in a 12.8px font size if the parent has a font size of 16px.
**3. px (Pixels)**
`px` is an absolute unit of measurement and is not relative to any other elements. It's often used for fixed-size elements where precise control over dimensions is required. For example:
```
.element {
font-size: 14px;
margin-top: 20px;
}
```
In this example, the font size of the `.element` is set to a fixed 14 pixels and the top margin is set to 20 pixels.
**Choosing the Right Unit**
- `Use px` when you need fixed-size elements that won't change, such as borders or shadows.
- `Use rem` for font sizes to ensure better accessibility for users who adjust their browser's default font size. rem is relative to the root font size.
- `Use em` when you want sizes to be relative to their parent element, like buttons that need to adjust based on their container's size.
Using relative units like `rem` and `em` helps your design stay consistent and adaptable to different screen sizes and user preferences.
| sidramaqbool |
1,870,346 | How To Make Money On The Side As A Developer | Side-hustles are something you have definitely thought of before. Of course, you might not be the... | 0 | 2024-05-30T11:50:10 | https://sotergreco.com/how-to-make-money-on-the-side-as-a-developer | sideprojects | Side-hustles are something you have definitely thought of before. Of course, you might not be the next Mark Zuckerberg, but making a few extra bucks on the side can benefit you a lot.
I am not going to talk about Upwork or other platforms because they didn't work for me, but I am going to share how you can gradually, and not overnight, make a few bucks here and there and overall improve your income.
This is not a get-rich-quick scheme but advice to build a higher income in the long run.
## Upwork Scam
I want to get Upwork out of the way before we start. This is because it's not that it is impossible to make money from Upwork, but you need to first do 4-5 jobs for free to build a reputation and then make some money.
On upwork reviews matter more than your portfolio, so even if you have a ton of projects built already if you don't have review you are not going anywhere.
This can take a long time, sometimes more than 4-5 months, depending on your location and how lucky you are.
## Attention Based Economy
We are living in an attention-based economy, which means skill is no longer the only requirement. Of course, you need to know what you are doing, but being an expert is not necessary anymore.
We see OnlyFans creators making millions while you are stuck with your $50,000 job and don't know how to make more money. The first thing you should do is pick a platform, share your knowledge, and engage with others.
Whether you choose X or Reddit is irrelevant. Just don't choose Instagram or Facebook because most tech people are on X and Reddit. By posting daily and engaging 8-10 times per day, you will start building an audience.
This will give you a head start in finding new clients.
## DM People
After you start building an audience, you have to start DMing people. I have found clients in the past just by asking them. Don't be afraid of sending a DM to someone.
Don't let that DM be fake, put effort into it and send it only to people you can genuinely help and to whom you think you can bring value.
Cold DMs are no longer working because everybody is doing it, but by putting effort into messaging people you have already interacted with on social media is a whole different game because you have built rapport with them.
## Connections
From the things we have already discussed the main thing we are doing is that we build connection and connections are really important when it comes to money, because most of the money you will make will be from your connections.
You need to keep in mind that you have to show the professional side of yourself. You social media profiles should look professional by uploading useful content that is helping people.
## Upsell
If you have any customers already, you should always ask them for more. I had clients on the side making $400-500, and by offering them more options and selling them more ideas, I managed to get $3000 and more from them.
For example, if they have a blog, offer to create a newsletter for them or build an e-commerce website to sell services.
This is a proven method and will make your more money on the connections you have.
## Conclusion
In conclusion, making money on the side as a developer requires strategy, persistence, and leveraging your connections.
Avoid the pitfalls of platforms like Upwork and focus on building an audience on social media, engaging meaningfully with potential clients, and upselling your services.
By consistently putting in the effort and showcasing your professional side, you can gradually increase your income and achieve financial growth.
Remember this is not an overnight success scheme. You need to put effort to be patient and gradually build your audience.
Thanks for reading, and I hope you found this article helpful. If you have any questions, feel free to email me at [**kourouklis@pm.me**](mailto:kourouklis@pm.me)**, and I will respond.**
You can also keep up with my latest updates by checking out my X here: [**x.com/sotergreco**](http://x.com/sotergreco) | sotergreco |
1,870,345 | E-Commerce Unleashed: Emerging Trends and Transformative Technologies | The virtual revolution continues to reshape the retail panorama, with E-commerce at the forefront of... | 0 | 2024-05-30T11:48:33 | https://dev.to/liong/e-commerce-unleashed-emerging-trends-and-transformative-technologies-4ik7 | digital, data, malaysia, virtual | The virtual revolution continues to reshape the retail panorama, with E-commerce at the forefront of this variation. As technology evolves and patron alternatives shift, new developments and improvements are growing that promise to redefine how we keep on-line.
**Hyper-Personalization: The Next Level of Customer Experience**
**AI-Powered Personalization Engines**
Artificial intelligence (AI) is riding a new technology of hyper-personalization in [e-commerce](https://ithubtechnologies.com/ecommerce-online-retailer/?utm_source=dev.to%2F&utm_campaign=ecommerce+&utm_id=Offpageseo+2024). Advanced algorithms analyze significant quantities of data, such as browsing records, buy styles, and social media interest, to supply fairly personalized shopping studies. These AI-powered engines can are expecting what products a consumer is possibly to shop for, tailor advertising messages, or even customize internet site layouts to person options.
**Dynamic Pricing Models**
Dynamic pricing, wherein expenses are adjusted in actual-time primarily based on call for, opposition, and other factors, is turning into more ultra-present day with AI. Retailers can offer personalized discounts and promotions to 1 in every of a kind client segments, maximizing earnings and profitability. These approaches not most effective enhances patron pleasure but also facilitates companies live aggressive in a rapidly changing marketplace.
**Voice Commerce: Shopping Through Smart Speakers**
**The Rise of Voice-Activated Shopping**
With the growing popularity of smart audio system like Amazon Echo and Google Home, voice alternate is emerging as a massive fashion. Consumers are the use of voice instructions to look for merchandise, place orders, and manipulate their buying lists. This hands-unfastened, convenient buying method is specifically appealing for busy individuals and people looking for brief, clean transactions.
**Optimizing for Voice Search**
To capitalize on the developing fashion of voice trade, E-commerce companies need to optimize their content material for voice seeks. This includes the usage of natural language processing (NLP) techniques to make certain that product descriptions and website content material align with how humans talk. By doing so, stores can enhance their visibility in voice seek consequences and entice extra clients.
**The Met averse: A New Frontier for E-commerce**
**Virtual Shopping Experiences**
The met averse, a collective digital shared space created by the convergence of simply greater bodily fact and physically persistent digital areas, is starting up new opportunities for e-commerce. Retailers are creating digital shops in which clients can browse and purchase products the usage of avatars. These immersive shopping stories provide a unique manner to engage clients and showcase products in a singular placing.
**Digital Goods and NFTs**
The met averse additionally gives opportunities for promoting virtual items and non-fungible tokens (NFTs). Brands can create distinctive virtual merchandise, such as digital garb and add-ons, that customers can buy and use within the met averse. NFTs add another layer of price through imparting specific, collectible items that can be sold, bought, and traded.
**Sustainability A Core Value in Modern E-commerce**
**Carbon-Neutral Delivery**
Sustainability is becoming a key trouble for clients, and E-commerce groups are responding by way of adopting eco-friendly practices. Carbon-independent delivery, in which stores offset the carbon emissions associated with transport, is gaining traction. This can contain making an investment in renewable energy projects or buying carbon credit to stability out emissions.
**Circular Economy Initiatives**
E-commerce agencies also are exploring circular economy models, which attention on decreasing waste and maximizing useful resource performance. This includes offering products made from recycled materials, encouraging product returns for recycling or refurbishment, and selling 2d-hand marketplaces. These projects now not handiest benefit the surroundings but additionally resonate with eco-conscious consumers.
**Artificial Intelligence: Beyond Personalization**
**Inventory Management and Demand Forecasting**
AI is revolutionizing inventory management through supplying accurate call for forecasts and optimizing inventory degrees. Machine learning algorithms examine historic sales information, marketplace trends, and other variables to predict future demand. This allows retailers lessen overstock and stock outs, main to extra efficient operations and better consumer satisfaction.
**Visual Search and Image Recognition**
Visual search technology, powered by means of AI, lets in customers to search for merchandise the use of pix instead of textual content. By importing a image or using their smartphone digital, clients can locate similar products available online. This technology is specifically useful in fashion and home decor, wherein visible enchantment is paramount. Image popularity additionally complements product hints and improves search accuracy.
**The Evolution of Delivery Options**
**Same-Day and Instant Delivery**
Customer expectations for immediate delivery are pushing stores to explore same-day and even instantaneous delivery options. Companies like Amazon and Wal-Mart are investing closely in logistics infrastructure to make this feasible. Additionally, partnerships with neighborhood courier offerings and gig economic system platforms permit smaller stores to offer expedited transport.
**Locker Pickups and Autonomous Delivery Solutions**
Locker pickups provide a convenient and secure alternative for clients who can not be home to acquire deliveries. These lockers are positioned in reachable locations like supermarkets and train stations, allowing customers to pick out up their orders at their convenience. Autonomous transport solutions, consisting of drones and self-using motors, also are being tested to in addition streamline the transport process and decrease costs.
**Subscription Models**
**Product and Service Subscriptions**
Subscription models are gaining recognition as a way to drive client loyalty and make sure a steady sales move. From splendor containers and meal kits to software offerings and media streaming, subscriptions offer comfort and constant fee to purchasers. Retailers advantage from predictable earnings and possibilities to construct long-time period relationships with their customers.
**Membership Programs**
Membership programs, like Amazon Prime, offer exclusive benefits to subscribers, which includes free transport, early access to sales, and special discounts. These applications now not only beautify patron loyalty but also inspire repeat purchases and higher spending.
The Global Reach of E-commerce
**Cross-Border Shopping**
E-commerce is breaking down geographical obstacles, permitting customers to store from worldwide retailers. Cross-border purchasing is facilitated by means of stepped forward logistics, localized charge alternatives, and multi-language assist. Retailers can faucet into new markets and reach a global target market by presenting global delivery and tailor-made advertising strategies.
**Localizing the Customer Experience**
To succeed in worldwide markets, E-commerce agencies should localize the consumer revel in. This involves translating website content, adapting product offerings to local possibilities, and providing customer support in a couple of languages. Additionally, knowledge and complying with neighborhood rules and cultural nuances is vital for building accept as true with and ensuring patron pride.
**Conclusion**
The e-commerce landscape is swiftly evolving, pushed by using technological improvements and converting client expectations. From hyper-personalization and voice trade to sustainability initiatives and the met averse, the future of E-commerce is complete of exciting possibilities. By staying beforehand of these tendencies and embracing revolutionary techniques, retailers cannot best meet but exceed the expectancies of current purchasers.
| liong |
1,862,285 | task 15 | 1.selenium IDE(Integrated Development Environment): Selenium IDE offers simple installation... | 0 | 2024-05-30T11:46:36 | https://dev.to/dineshrajavel/task-15-1g3i | 1.selenium IDE(Integrated Development Environment):
Selenium IDE offers simple installation and is easy to learn, while Selenium WebDriver is more powerful and flexible at a higher cost.
Acts as a plug-in for your browser
Has point and click accessibility.
Provides the ability to build out tests into a grid for parallel test execution.
Provides the ability to execute testing remotely. This provides a significant advantage when testing multiple setups for the same test cases.
Able to record user behavior and play it back for reviewing and QA purposes.
selenium web driver:
Selenium WebDriver is a code library of APIs for controlling browsers.
Broad language support - Allowing your team to use the language they know best, without additional training needed.
Multi-browser compatibility - Allowing for testing on multiple browsers to accommodate all possible users, as well as different user systems.
Open-source - This means you have vast stores of knowledge and tools that have built up over the years to solve any and all problems.
selenium Grid:
Selenium Grid is a smart proxy server that makes it easy to run tests in parallel on multiple machines. This is done by routing commands to remote web browser instances, where one server acts as the hub. This hub routes test commands that are in JSON format to multiple registered Grid nodes.
3.SELENIUM:
Selenium WebDriver. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments.
How to useful Automation Testing:
Create a WebDriver instance.
Navigate to a webpage.
Locate a web element on the webpage via locators in selenium.
Perform one or more user actions on the element.
Preload the expected output/browser response to the action.
Run test.
4.All Browser Driver used in selenium:
The major implementation classes of WebDriver interface are Chrome Driver, Edge Driver, Firefox Driver, Internet Explorer Driver etc. Each driver class corresponds to a browser. We simply create the object of the driver classes and work with them.
Chrome Driver: It helps you to execute Selenium Scripts on Chrome browser.
Firefox Driver: It helps you to execute Selenium Scripts on Firefox browser.
Internet Explorer Driver: It helps you to execute Selenium Scripts on Internet Explorer browser.
5. | dineshrajavel | |
1,867,628 | Klarna Payment Gatway In Laravel | Klarna Payment Gatway In Laravel ... | 0 | 2024-05-28T12:48:33 | https://dev.to/azharabbas10/klarna-payment-gatway-in-laravel-27k4 | {% stackoverflow 78543865 %} | azharabbas10 | |
1,870,344 | Unable to resolve dependency [Parameter #0 [ <required> $formData ]] in class App\Livewire\FloatingChat | i got error , maybe for detail can goto my stackoverflow quetion detail... | 0 | 2024-05-30T11:46:29 | https://dev.to/azizywn/unable-to-resolve-dependency-parameter-0-formdata-in-class-applivewirefloatingchat-130i | i got error , maybe for detail can goto my stackoverflow quetion detail
[](https://stackoverflow.com/questions/78554722/unable-to-resolve-dependency-parameter-0-required-formdata-in-class-ap)
https://stackoverflow.com/questions/78554722/unable-to-resolve-dependency-parameter-0-required-formdata-in-class-ap | azizywn | |
1,870,343 | Html, datetime-local | <label for="datetime">날짜와 시간을 선택하세요: <input type="datetime-local" ... | 0 | 2024-05-30T11:45:19 | https://dev.to/sunj/html-datetime-local-4mcn | html | ```
<label for="datetime">날짜와 시간을 선택하세요:
<input type="datetime-local"
id='currentMonth'
>
</label>
```
현재 날짜&시간을 max로 잡기 위해서 js를 같이 사용해야 함
```
var d = new Date();
document.getElementById("currentMonth").value = new Date(
d.getTime() - d.getTimezoneOffset() * 60000
)
.toISOString()
.slice(0, -1);
```
```
<body>
<div class="m100">
<h1>input datetime-local value, min, max</h1>
<input type="datetime-local" id="dateTimeLocal" onchange="setMaxValue()">
</div>
<script>
let dateElement = document.getElementById('dateTimeLocal');
let date = new Date(new Date().getTime() - new Date().getTimezoneOffset() * 60000).toISOString().slice(0, -5);
dateElement.value = date;
dateElement.setAttribute("max", date);
function setMaxValue() {
if(dateElement.value > date) {
alert('현재 시간보다 이후의 날짜는 설정할 수 없습니다.');
dateElement.value = date;
}
}
</script>
</body>
```
_참조: https://sorto.me/docs/Web/HTML/Element/input/datetime-local_
_https://velog.io/@leeu2u/HTML22input-%ED%98%84%EC%9E%AC-%EB%82%A0%EC%A7%9C-%EC%8B%9C%EA%B0%84-%EC%84%B8%ED%8C%85%ED%95%98%EA%B8%B0_
_https://wildeveloperetrain.tistory.com/15_ | sunj |
1,870,342 | Announcing DevTools Premium | Building good applications is like precision machining: You need high-quality, reliable tools to get... | 0 | 2024-05-30T11:44:44 | https://crabnebula.dev/blog/announcing-devtools-premium | rust, tauri, devtools | *Building good applications is like precision machining: You need high-quality, reliable tools to get the job done right.*
We’re delighted by the excitement and community support that has built around DevTools for Tauri since its [release last year](https://crabnebula.dev/blog/announcing-devtools/). Today, we’re taking things even further with DevTools Premium, our newest, most capable debugging tool.
{% embed https://youtu.be/YQT5rNsCQqs %}
**Companion Video:** *Launching DevTools Premium: Profile, Debug, Inspect Your Tauri Apps*. Watch Atila go over all the new features and how to use them.
With DevTools Premium you can examine your Tauri applications with remarkable precision and unlock never seen before performance. Featuring the Embedded Mode and its optimized integration with Tauri as well as a standalone desktop application DevTools Premium fits right into your workflow.
## Take a look:
Embedded Mode brings the capabilities of DevTools Premium right into your apps, integrated as a special tab you can access all of DevTools just like the browser-builtin one. The integration can of course be removed in release builds.
The standalone desktop application will serve as the powerful foundation for future, even more advanced capabilities.
## Try It Out Today
You can [sign up for a CrabNebula Cloud account today](https://crabnebula.cloud/), to access our new, most powerful debugging tool for Tauri to-date. For more information, [check out the docs](https://docs.crabnebula.dev/devtools/get-started/).
We’d love for you to [give feedback](https://discord.com/channels/632194709351301132/1177204395306405898) and help us make Devtools for Tauri work for you.We will be hosting Q&A sessions, providing regular progress updates, and live-streaming as we develop. Most activities will be happening [on our discord server](https://discord.gg/HBqPb2yuD2), so please join us there!
## Q&A
* **What about the existing version?**
The existing Open Source version is going nowhere, it will continue to receive updates and fixes but more advanced features will only be available for DevTools Premium.
---
*Author: Jonas Kruckenberg, Research & Development at CrabNebula* | crabnebuladev |
1,870,341 | Implementing Role Based Access Control in SvelteKit | Table Of Contents Understanding Role-Based Access Control (RBAC) Setting Up the SvelteKit... | 0 | 2024-05-30T11:43:46 | https://permify.co/post/role-based-access-control-rbac-sveltekit/ | svelte, sveltekit, tutorial, security | ### Table Of Contents
* <a href="#understanding-role-based-access-control-rbac">Understanding Role-Based Access Control (RBAC)</a>
* <a href="#setting-up-the-sveltekit-project">Setting Up the SvelteKit Project</a>
* <a href="#integrating-rbac-configurations-and-utilities">Integrating RBAC Configurations and Utilities</a>
* <a href="#defining-roles-and-permissions">Defining Roles and Permissions</a>
* <a href="#implementing-rbac-utility-functions">Implementing RBAC Utility Functions</a>
* <a href="#dynamic-navigation-based-on-user-roles">Dynamic Navigation Based on User Roles</a>
* <a href="#securing-routes-based-on-user-roles">Securing Routes Based on User Roles</a>
* <a href="#managing-permissions-within-components">Managing Permissions Within Components</a>
* <a href="#conclusion">Conclusion</a>
### **Prerequisites**
Before you begin, you'll need to have the following prerequisites:
* **Basic knowledge of SvelteKit**: Familiarity with SvelteKit's core concepts, like routing, components, and stores, will be helpful.
* **Node.js and npm:** You'll need to have Node.js and npm (Node Package Manager) installed on your system. If you haven't already, you can download and install them from the official [Node.js website](https://nodejs.org/).
* **Git:** Ensure you have Git installed on your machine. If not, you can download it from the [Git website](https://git-scm.com/).
[](https://github.com/Permify/permify/)
<h2 id="understanding-role-based-access-control-rbac">Understanding Role-Based Access Control (RBAC)</h2>
RBAC is a security model that organizes user permissions based on their roles within an application.
Each role is associated with a set of permissions, and users are assigned specific roles to determine what they can access.
### **Roles and Permissions**
Roles represent a collection of related permissions that define what a user can do within an application.
For instance, an application might have roles such as `Admin`, `Editor`, and `Viewer` each with different sets of permissions.
Permissions, on the other hand, are specific actions or operations that a user with a particular role can perform.
These can range from viewing and editing data to managing user accounts or system configurations.
<h2 id="setting-up-the-sveltekit-project">Setting Up the SvelteKit Project</h2>
Before we start implementing RBAC, we need a SvelteKit project ready to work with.
To keep things simple, we'll use a demo e-commerce project as our starting template. The complete code for this project can be found in this [GitHub repository](https://github.com/TropicolX/svelte-rbac-demo).
To get the starter template, run the following commands:
```bash
git clone https://github.com/TropicolX/svelte-rbac-demo.git
cd svelte-rbac-demo
git checkout starter
npm install
```
The project structure should look like the one below:
![Screenshot of project structure](https://res.cloudinary.com/tropicolx/image/upload/v1715948411/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/962ef8aa-a41c-467c-957a-2ef9a394771b_rrhaoa.png?align="center")
Next, let's go over the essential files and directories we'll be working with for the project:
* `/lib`: This directory will contain all our utilities and components.
* `/routes`: Contains all the routes in our application.
* `/(protected)`: This folder contains all our protected routes. Only signed-in users may be able to navigate these routes.
* `/login`: This is the route to the login page.
* `/unauthorized`: This is the route we redirect users to when they are unauthorized in accessing a page.
* `+layout.svelte`: This contains the UI layout and logic that applies to every page.
* `+page.svelte`: This is our home page route.
* `hooks.server.js`: This file contains all the server-side logic we need to authenticate users when they navigate to a protected route and to redirect them when necessary. It also fetches the user data on the server and stores it in the [`event.locals`](https://kit.svelte.dev/docs/hooks#server-hooks-handle) object.
### **Project Overview**
To start the project, run the following command in the root directory:
```bash
npm run dev
```
You should see a page like the one below:
![Screenshot of e-commerce project home page](https://res.cloudinary.com/tropicolx/image/upload/v1715948453/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/62341754-6934-42db-a036-f0af349c3547_t34a4d.png?align="center")
Next, let's sign in to the app. Click the "Sign in" button at the top right corner of the page.
![Sign in page](https://res.cloudinary.com/tropicolx/image/upload/v1715948502/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/eb66d3a3-bbd9-4043-8b75-81d6771574e8_mqbx5k.png?align="center")
You can sign in as either an admin or a customer using the following credentials:
* **Admin:**
* **Email:** ``admin@gmail.com``
* **Password:** ``admin123``
* **Customer:**
* **Email:** ``john@mail.com``
* **Password:** ``changeme``
After signing in, you will be redirected to the home page and should able to see two new links on the navbar:
* Admin link
* Profile link
![Initial home page when signed in](https://res.cloudinary.com/tropicolx/image/upload/v1715948530/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/f3fbe006-582e-46da-a3fe-c537619ebd72_vyxsai.png?align="center")
This brings us to the current problem with our e-commerce app: We need to ensure that only admins can access the admin page, and similarly, only customers can access the profile page.
Additionally, we need to ensure that only admins and customers with the required permissions can perform specific actions within their respective pages.
For instance, only an admin with permission to create products should be able to do so on the admin page.
<h2 id="integrating-rbac-configurations-and-utilities">Integrating RBAC Configurations and Utilities</h2>
Now that we've set up and familiarized ourselves with the Svelekit project let's begin implementing RBAC in our app. We'll start by defining the roles and permissions within the app.
<h3 id="defining-roles-and-permissions">Defining Roles and Permissions</h3>
In the SvelteKit project, create a new file called `constants.js` in the `src` directory and add the following code:
```javascript
// src/constants.js
export const ROLES = {
ADMIN: "admin",
CUSTOMER: "customer",
};
export const PERMISSIONS = {
CREATE_PRODUCTS: "create:products",
UPDATE_PRODUCTS: "update:products",
DELETE_PRODUCTS: "delete:products",
READ_PROFILE: "read:profile",
UPDATE_PROFILE: "update:profile",
};
```
In the code above, we defined our app's roles and permission constants.
Next, we need to define the permissions each role has. Navigate to the `lib` directory and create a `rolePermissions.js` file with the following code:
```javascript
// src/lib/rolePermissions.js
import { PERMISSIONS, ROLES } from "../constants";
export const rolePermissions = {
[ROLES.ADMIN]: [
PERMISSIONS.CREATE_PRODUCTS,
PERMISSIONS.UPDATE_PRODUCTS,
PERMISSIONS.DELETE_PRODUCTS,
],
[ROLES.CUSTOMER]: [PERMISSIONS.READ_PROFILE, PERMISSIONS.UPDATE_PROFILE],
};
```
The code above sets up each of the roles with specific permissions. We want admin users to be able to create, update, and delete products.
On the other hand, we want customers to be able to read and update their profile details.
<h3 id="implementing-rbac-utility-functions">Implementing RBAC Utility Functions</h3>
Next, let's create some utility functions to check if a user has a certain role or permission. These functions will enforce access control throughout the app.
In the `lib` directory, create a `rbacUtils.js` file and add the following code:
```javascript
// src/lib/rbacUtils.js
import { rolePermissions } from "./rolePermissions";
// Function to check if a user has a specific role
export function checkRole(user, requiredRole) {
if (!user) {
return false;
}
return user.role === requiredRole;
}
// Function to check if a user has specific permissions
export function checkPermissions(user, requiredPermissions) {
if (!user) {
return false;
}
const userPermissions = rolePermissions[user.role];
return userPermissions?.includes(requiredPermissions);
}
// Function to check if a user has both a specific role and permissions
export function checkRoleAndPermissions(
user,
requiredRole,
requiredPermissions
) {
return (
checkRole(user, requiredRole) &&
checkPermissions(user, requiredPermissions)
);
}
```
With these configurations in place, we can start integrating RBAC within our app.
<h2 id="dynamic-navigation-based-on-user-roles">Dynamic Navigation Based on User Roles</h2>
The navigation UI is the first area in our app where we'll implement RBAC. We need to ensure that users see only the navigation links relevant to their roles.
Firstly, head over to the `+layout.svelte` file in the `routes` folder and add the following code:
```javascript
<!-- src/routes/+layout.svelte -->
<script>
...
import Loading from "$lib/components/Loading.svelte";
import { checkRole } from "$lib/rbacUtils";
import { ROLES } from "../constants";
import { user, cart, products } from "../stores";
import "../app.css";
...
$: isAdmin = checkRole($user, ROLES.ADMIN);
$: isCustomer = checkRole($user, ROLES.CUSTOMER);
</script>
...
```
Here, we defined two variables, `isAdmin` and `isCustomer`, which check if the user is an admin or a customer, respectively. We also used reactive declarations to define the variables so that any changes to the user data, e.g., if the user logs out, will update their values.
Next, let's update our navigation links:
```javascript
<!-- src/routes/+layout.svelte -->
...
<header
class="bg-gray-900 text-white py-4 px-6 md:px-12 flex items-center justify-between"
>
...
<nav class="hidden md:flex items-center space-x-6">
{#if isAdmin}
<a class="hover:text-gray-300" href="/admin">Admin</a>
{/if}
{#if isCustomer}
<a class="hover:text-gray-300" href="/user">Profile</a>
{/if}
</nav>
...
</header>
...
```
![Demo of dynamic navigation implementation](https://res.cloudinary.com/tropicolx/image/upload/v1715948598/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/51ff4981-2756-4d54-8b91-0311b149b3c6_xptqub.gif?align="center")
Now, the navigation links for the admin and profile pages will be displayed conditionally based on the user's role.
<h2 id="securing-routes-based-on-user-roles">Securing Routes Based on User Roles</h2>
In the previous section, we added dynamic client-side navigation based on user roles. However, users may still be able to navigate to unauthorized routes by using the browser navigation. To prevent this, we need to secure the routes directly by adding role-based protection.
We can do this in Svelte by adding a `+layout.server.js` file in each route to run a server-side `load` function. The load function will run whenever the user loads the page and will check whether the user has access to the route based on their role. If they are not authorized, they will be redirected to the `/unauthorized` page.
Let's start by implementing this on the admin page. Head over to the `admin` directory in the `(protected)` folder, create a `+layout.server.js` file with the following code:
```javascript
// src/routes/(protected)/admin/+layout.server.js
import { redirect } from "@sveltejs/kit";
import { checkRole } from "$lib/rbacUtils";
import { ROLES } from "../../../constants";
/** @type {import('./$types').LayoutServerLoad} */
export function load({ locals }) {
const user = locals.user;
const isAdmin = checkRole(user, ROLES.ADMIN);
if (!isAdmin) {
redirect(307, "/unauthorized");
}
}
```
![Demo for securing admin route](https://res.cloudinary.com/tropicolx/image/upload/v1715948663/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/a2d604ab-c976-42fc-9fcb-e4ae936c11bd_sa4ozo.gif?align="center")
Now, if a non-admin user attempts to access the admin route, they will be redirected appropriately.
Next, let's secure our `user` route. Within the `(protected)` folder, navigate to the `user` directory and create a `+layout.server.js` file with the following code:
```javascript
// src/routes/(protected)/user/+layout.server.js
import { redirect } from "@sveltejs/kit";
import { checkRoleAndPermissions } from "$lib/rbacUtils";
import { PERMISSIONS, ROLES } from "../../../constants";
/** @type {import('./$types').LayoutServerLoad} */
export function load({ locals }) {
const user = locals.user;
const isCustomerAndCanViewProfile = checkRoleAndPermissions(
user,
ROLES.CUSTOMER,
PERMISSIONS.READ_PROFILE
);
if (!isCustomerAndCanViewProfile) {
redirect(307, "/unauthorized");
}
}
```
![Demo for securing user route](https://res.cloudinary.com/tropicolx/image/upload/v1715948720/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/c3a93ae8-6ec6-496f-ac40-ce6492780265_rqkhwf.gif?align="center")
Here, we're doing things a bit differently by using the `checkRoleAndPermissions` function to ensure the user is both a customer and has permission to read a profile before being able to access the profile page.
This function can be helpful in more complex scenarios where a role might have additional or custom permissions different from the default permissions.
Next let's look at how to manage role permissions within components.
<h2 id="managing-permissions-within-components">Managing Permissions Within Components</h2>
Now that we've secured our routes, the next step is to safeguard actions and features within those pages to ensure only users with the necessary permissions can access them.
For instance, you can take three main actions on the admin page:
* Create a product
* Edit a product
* Delete a product
![Screenshot of admin dashboard](https://res.cloudinary.com/tropicolx/image/upload/v1715948760/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/2ebbcadd-ee6a-43a6-b646-a06a24e08ed5_tqtu2y.png?align="center")
Currently, an admin has the permission to perform all these actions by default. But suppose later in development, a change was made to revoke the `create:products` permission from the default admin role and to only be given to a select few admins.
In that case, ensuring only those specific admins can create a product becomes crucial.
We can check permissions in our project using the `checkPermissions` utility function.
For example, in the `+page.svelte` file in the `admin` directory, we can add the following code to ensure only admins with `create:product` permission can access the "Add new product" button:
```javascript
<!-- src/routes/(protected)/admin/+page.svelte -->
<script>
import { checkPermissions } from "$lib/rbacUtils";
import { PERMISSIONS } from "../../../constants";
import { user, products } from "../../../stores";
$: canCreateProducts = checkPermissions($user, PERMISSIONS.CREATE_PRODUCTS);
</script>
<div class="container mx-auto px-4 md:px-8 py-12">
<div class="flex flex-wrap items-center justify-between mb-8">
<h2 class="text-3xl md:text-4xl font-bold">Admin Dashboard</h2>
{#if canCreateProducts}
<button
class="mt-4 min-[457px]:mt-0 inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 h-10 px-4 py-2 bg-gray-900 text-white hover:bg-gray-800"
>
Add new product
</button>
{/if}
</div>
...
</div>
```
If we remove `PERMISSIONS.CREATE_PRODUCTS` from the admin permissions in the `rolePermissions.js` file, we can see the change taking effect:
```javascript
// src/lib/rolePermissions.js
...
export const rolePermissions = {
[ROLES.ADMIN]: [
PERMISSIONS.UPDATE_PRODUCTS,
PERMISSIONS.DELETE_PRODUCTS,
],
...
};
```
![Screenshot of admin dashboard with no new product button](https://res.cloudinary.com/tropicolx/image/upload/v1715948810/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/4e6442ee-dba7-4b2c-b6a0-de03ce0ade0c_dgigiy.png?align="center")
Let's take things a step further by securing the edit and delete feature as well:
```javascript
<!-- src/routes/(protected)/admin/+page.svelte -->
<script>
...
$: canDeleteProducts = checkPermissions($user, PERMISSIONS.DELETE_PRODUCTS);
$: canUpdateProducts = checkPermissions($user, PERMISSIONS.UPDATE_PRODUCTS);
</script>
...
<tbody class="[&_tr:last-child]:border-0">
{#each $products as product (product.id)}
<tr
class="border-b transition-colors hover:bg-muted/50 data-[state=selected]:bg-muted"
>
...
<td class="p-4 align-middle [&:has([role=checkbox])]:pr-0">
<div class="flex items-center space-x-2">
{#if canUpdateProducts}
<!-- Update button -->
<button
class="inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 border border-input bg-background hover:bg-accent hover:text-accent-foreground h-10 w-10"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
class="h-4 w-4"
>
<path
d="M17 3a2.85 2.83 0 1 1 4 4L7.5 20.5 2 22l1.5-5.5Z"
></path>
</svg>
</button>
{/if}
{#if canDeleteProducts}
<!-- Delete button -->
<button
class="inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 border border-input bg-background hover:bg-accent hover:text-accent-foreground h-10 w-10"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="24"
height="24"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
class="h-4 w-4"
>
<path d="M3 6h18"></path>
<path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6"
></path>
<path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2"
></path>
</svg>
</button>
{/if}
</div>
</td>
</tr>
{/each}
</tbody>
...
```
Next, let's implement the same policy on our profile page. Navigate to the `+page.svelte` file in the `user` directory and add the following code:
```javascript
<!-- src/routes/(protected)/user/+page.svelte -->
<script>
import { checkPermissions } from "$lib/rbacUtils";
import { PERMISSIONS } from "../../../constants";
import { user } from "../../../stores";
$: canEditProfile = checkPermissions($user, PERMISSIONS.UPDATE_PROFILE);
let name = $user.name;
let email = $user.email;
</script>
<div class="h-[calc(100svh-64px)] w-full flex items-center justify-center">
<div
class="rounded-lg border bg-card text-card-foreground shadow-sm w-[28rem] max-w-md"
>
...
<div class="p-6 space-y-4">
<div class="space-y-2">
...
<input
...
disabled={!canEditProfile}
/>
</div>
<div class="space-y-2">
...
<input
...
disabled={!canEditProfile}
/>
</div>
<div class="space-y-2">
...
<input
...
disabled={!canEditProfile}
/>
</div>
<div class="space-y-2">
...
<input
...
disabled={!canEditProfile}
/>
</div>
</div>
<div class="flex items-center p-6">
<button
...
disabled={!canEditProfile}
>
Save
</button>
</div>
</div>
</div>
```
Here, we use the `canEditProfile` variable to determine whether the input fields and save button will be disabled. If the value is `false`, the input fields and submit button will be disabled and vice versa.
And with that, we should have a fully secured e-commerce web app using RBAC!
![Final RBAC demo](https://res.cloudinary.com/tropicolx/image/upload/v1715948845/Implementing%20Role-Based%20Access%20Control%20in%20SvelteKit/d5b4fa53-3b48-4c98-b47b-c821793d927a_cqtq0a.gif?align="center")
<h2 id="conclusion">Conclusion</h2>
In this tutorial, we looked at how to implement Role-Based Access Control (RBAC) in Sveltekit applications.
We began by learning about the fundamentals of RBAC, such as roles and permissions and their importance in web development.
We then examined its implementation, which included configuring custom roles and permissions, integrating RBAC utilities, securing routes, and managing permissions within components.
As you continue developing your SvelteKit apps, remember to regularly review and update your RBAC configuration to adapt to changing requirements and mitigate potential security risks.
Additionally, prioritize continual monitoring, logging, and testing to maintain the integrity and effectiveness of your RBAC implementation.
You can find the complete project code in this [GitHub Repo](https://github.com/TropicolX/svelte-rbac-demo).
| egeaytin |
1,870,340 | Software Testing Glossary: One-Stop Guide for 100+ Testing Terms | When it comes to software testing, there is plenty of information available; it can be hard to know... | 0 | 2024-05-30T11:43:44 | https://dev.to/devanshbhardwaj13/software-testing-glossary-one-stop-guide-for-100-testing-terms-3je4 | testing, testdev, glossary, programming | When it comes to software testing, there is plenty of information available; it can be hard to know where to begin. If you’re a novice in software testing, you’ve probably heard many unfamiliar acronyms and jargon. In order to expand your professional vocabulary, learning different testing terminologies is crucial.
This guide on software testing glossary covers some of the basic definitions for software testing and quality assurance commonly used by QA testers.
Let’s begin!
## [A/B Testing](https://www.lambdatest.com/learning-hub/ab-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A/B testing or split testing creates at least one variant to test against a current webpage to ascertain which one performs better regarding agreed metrics such as revenue per visitor (for e-commerce websites) or conversion rate.
## API
Application Programming Interface, or API, refers to the interface through which two applications communicate. The word Application in this context refers to any software with a distinct function. An API contract defines how the two applications communicate through requests and responses.
## [API Testing](https://www.lambdatest.com/learning-hub/api-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The process of verifying and validating an API’s functionality, reliability, performance, and security is known as API testing. It entails submitting requests to an API and examining its results to ensure that desired results are met. It aids in identifying issues like improper data formatting, invalid inputs, inadequate error handling, and unauthorized access and can be carried out manually or with the help of automated tools.
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## [Acceptance Testing](https://www.lambdatest.com/learning-hub/user-acceptance-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The potential end-user or customers perform [acceptance testing](https://www.lambdatest.com/learning-hub/acceptance-testing) to check if the software meets the requirements and can be accepted for end-use.
## Acceptance Test Driven Development
Acceptance Test Driven Development (ATDD) is a software development methodology that helps you to reduce the risk of defects and ensure that your application meets quality standards by incorporating testing as an integral part of the development process.
## [Accessibility Testing](https://www.lambdatest.com/learning-hub/acceptance-testing?utm_source=pinterest&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Accessibility testing makes your mobile and web apps used by as many people as possible. This includes people with disabilities such as vision impairments, hearing limitations, and other physical or cognitive conditions.
## Actual Result
The actual result, also known as the actual outcome, is the result a tester receives after performing the test. The actual result is documented along with the test case during the test execution phase. After completing all tests, the actual result is compared with its expected outcome, and any deviations are noted.
## [Ad Hoc Testing](https://www.lambdatest.com/learning-hub/ad-hoc-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Ad hoc testing is a type of informal, unstructured software testing that attempts to break the testing process in order to detect any vulnerabilities or flaws as quickly as possible. It is carried out randomly and is usually an unplanned activity that does not adhere to test design principles or documentation when creating test cases.
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## [Agile Development](https://www.lambdatest.com/blog/agile-development/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Agile software development is a process of software development based on iterative development. In this method, requirements and solutions involve collaboration between self-organizing cross-functional teams.
Agile software development is based on repetitive and parallel development, where requirements are chalked and solutions are implemented through collaboration between cross-functional teams.
## [Agile Testing](https://www.lambdatest.com/learning-hub/agile-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The Agile testing practice works according to the rules and principles of the Agile software development process. Unlike the Waterfall approach, it begins at the beginning of the project, with development and testing running simultaneously. With the Agile testing approach, development and testing teams work closely together to accomplish different tasks.
## [Alpha Testing](https://www.lambdatest.com/learning-hub/alpha-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The Alpha testing is a software testing method that detects bugs in the product before it is released to real users or the public. It is also referred to as alpha testing because it is done early in the development process, near the end before beta testing begins.
## [Analytical Test Strategy](https://www.lambdatest.com/learning-hub/test-strategy?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Analytical test strategies are used to identify potential problems in the test basis before the test is executed; they require an upfront analysis of the test basis.
## [Automated Testing](https://www.lambdatest.com/learning-hub/automation-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Automated testing is a form of testing that uses scripts to perform repetitive tasks, thus enhancing the performance of the software and efficiency. Test Automation is the best way to increase the effectiveness, test coverage, and execution speed in software testing.
## Back-to-Back Testing
Back-to-back testing is a type of comparison testing conducted if there are two or more variants of components with similar functionality. The aim is to compare the results and check for any divergences in work.
## [Beta Testing](https://www.lambdatest.com/learning-hub/beta-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Beta testing is external user acceptance testing and is the last testing performed before a product is released to the audience. In beta testing, a nearly completed version of the software, the beta version, is released to a limited number of end-users for testing.
This beta testing method is performed to gain feedback on accessibility, usability, reliability, functionality, and other aspects of the developed software.
## [Big Data Testing](https://www.lambdatest.com/learning-hub/big-data-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Big Data Testing is a specialized quality assurance process aimed at verifying and validating the quality and reliability of large volumes of data within big data systems. It ensures that data processing, storage, and retrieval functions operate correctly, enabling organizations to make informed decisions based on accurate and trustworthy data in their big data applications.
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## Big Bang Testing
Big Bang Testing is a strategy for system testing that links all units together at once without consideration of how they interact. This makes it difficult to isolate errors because attention must be paid to individual units’ interfaces.
## [Black Box Testing](https://www.lambdatest.com/learning-hub/black-box-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Black box testing involves examining the software without knowing its internal structure. Often, it refers to functional or acceptance testing, although the latter is known as white box testing or clear box testing. Anyone can perform Black box testing, independent of the development team, and a developer’s familiarity with the code should not affect testing quality.
## Bottom-up Integration
In bottom-up integration testing, every lower-level module is tested with higher modules until all modules are tested. Then, it takes the help of Drivers for software testing.
## [Build Automation](https://www.lambdatest.com/learning-hub/build-automation?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Build Automation refers to the process of automating the compilation, assembly, and deployment of source code into finished products or executable programs. This practice streamlines and accelerates the software development process, minimizing manual intervention and potential errors
## BS 7925–2
BS 7925–2 is a Software Component Testing Standard. This standard describes the process for component testing using specific test-case designs and measurement systems. This will ensure improvement of the software testing quality and, in turn, improve the quality of the software products.
## Bug
A bug is a problem causing a program to crash or produce invalid output. The problem is caused by insufficient or erroneous logic. A bug can be an error, mistake, defect, or fault, which may cause failure or deviation from expected results.
## Canary Testing
Canary Testing is a technique used to detect any issues or bugs and minimize the risk of introducing new changes or updates to a production environment. It is often used in conjunction with A/B testing, where multiple versions of a feature or change are released to test among a group of people. By comparing the performance and feedback of different versions, developers can refine and improve the new feature before it is made public.
## CAST
The CAST Certification exhibits a basic-level understanding of quality testing principles and practices. In addition, acquiring the designation of Certified Associate in Software Testing (CAST) demonstrates a professional level of expertise in the principles and practices of software testing in the IT profession.
## [Chaos Engineering](https://www.lambdatest.com/blog/chaos-engineering-making-chaos-work-for-software-testing/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Chaos engineering is a method of testing software that introduces random failures and faults to verify its resilience in the face of unpredictable disruptions. These disruptions cause applications to fail in ways that are difficult to anticipate and debug. Chaos engineers ask why.
## [Chaos Testing](https://www.lambdatest.com/learning-hub/chaos-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Chaos testing involves purposefully injecting faults or failures into your infrastructure to test your system’s ability to respond when those failures occur. This method is an effective way to practice disaster recovery procedures and prevent downtime and outages from happening.
## Change Requests
Change requests come from stakeholders in the software development process who want to change something in a product or production method. Common change requests include defects and requests for product enhancements or new features.
## [CI/CD Testing](https://www.lambdatest.com/learning-hub/cicd-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
CI/CD Testing, which stands for Continuous Integration/Continuous Deployment Testing, is a vital component of modern software development. It involves the systematic and automated testing of software applications at various stages of the development pipeline.
## CMMI
The CMMI or Capability Maturity Model Integration is a structured collection of best practices in engineering, service delivery, and management. It aims to assist companies in improving their ability to deliver customer satisfaction through an ever-increasing understanding of their capabilities.
The framework organizes practices by the effectiveness of the practice itself (“capability”) and by the implementation of structured combinations of effective practices within the organization (“maturity”).
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## [Code Coverage](https://www.lambdatest.com/learning-hub/code-coverage?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Code coverage is a widely-used metric that can help you understand how much of your source is tested. It’s an important metric that can help you assess the quality of your test suite. Code coverage is one form of white box testing, which finds areas of a program that were not executed during testing.
## [Code Review](https://www.lambdatest.com/learning-hub/code-review?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Code reviews, also known as Peer reviews, are a crucial part of any development process. They help ensure the quality of the code base, expose bugs, and provide developers with valuable experience.
## [Code Reusability](https://www.lambdatest.com/learning-hub/code-reusability?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Code Reusability is a programming practice that involves writing code in a way that it can be used again in different parts of a software application or in various projects, without modification. This approach enhances efficiency, reduces errors, and shortens development time, as developers can leverage pre-existing, tested code.
## [Coding Standards](https://www.lambdatest.com/learning-hub/coding-standards?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Coding Standards are a set of guidelines and best practices used by programmers to write code that is easy to read, maintain, and understand. These standards ensure that code is consistently formatted and structured across different developers and projects, facilitating smoother collaboration and more efficient code review processes.
## [Compatibility Testing](https://www.lambdatest.com/blog/basics-of-compatibility-testing/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Compatibility Testing ensures whether the software will run on different hardware, operating systems, applications, network environments, or mobile devices. It is performed on applications once they have become stable. Compatibility testing prevents future issues regarding compatibility, which is essential from a production and implementation standpoint.
## Component
A software component is a composition unit with only contractually specified interfaces and explicit context dependencies.
## [Component Testing](https://www.lambdatest.com/learning-hub/component-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Component testing validates the usability of each component of the software application. The behavior of each component is also determined along with the usability testing. Component testing requires each component to be in an independent state and controllable.
## Concurrency Testing
Concurrency testing, also known as multi-user testing, is a form of software testing performed on an application with multiple users logging in simultaneously. It helps identify and measure problems associated with concurrencies, such as response time, throughput, locks/deadlocks, and other issues.
## [Configuration Management](https://www.lambdatest.com/learning-hub/configuration-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Configuration management is an engineering process for maintaining the consistency of a product’s attributes throughout its life. In the technology world, configuration management is an IT management process that tracks individual configuration items of an IT system.
## [Contract Testing](https://www.lambdatest.com/learning-hub/contract-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The contract testing technique ensures that applications work together by checking each application in isolation to ensure the messages it sends or receives conform to a shared understanding.
## Content Testing
Content testing ensures that your website’s target audience can find, understand, and comprehend your content. It starts early in the UX process to ensure that new content is implemented to maximize comprehension and usability.
## Context Driven Testing
Context-driven testing is an approach to software testing that emphasizes the importance of considering the specific context of a project when designing and executing tests. Context-driven testers don’t rely on a one-size-fits-all strategy for testing since each project is unique and requires a customized strategy.
## [Continuous Testing](https://www.lambdatest.com/learning-hub/continuous-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Continuous testing provides feedback on business risks as early as possible before releasing a newly developed product. Organizations can use it to ensure that applications remain secure and effective in complex, fast-paced environments through test automation.
## COTS
Commercial Off-the-Shelf (COTS) software is becoming an ever-increasing part of organizations’ comprehensive IT strategy for building and delivering systems. However, a common perception held by many people is that since a vendor developed the software, much of the testing responsibility is carried by the software vendor.
## [Cucumber Testing](https://www.lambdatest.com/learning-hub/cucumber-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Cucumber Testing is a software testing approach that supports Behavior Driven Development (BDD). It allows developers and testers to write test cases in plain English, making the testing process easily understandable even for individuals without a technical background.
## [Cross Browser Testing](https://www.lambdatest.com/learning-hub/cross-browser-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Cross Browser Testing allows you to verify your application’s compatibility with different browsers. It’s essential to any development process because it ensures that your product works for all users, regardless of their browser preferences.
## CSS Testing
CSS testing is a software testing method that ensures the correctness and consistency of Cascading Style Sheets (CSS) used in web applications and websites. CSS testing can be performed manually or through automated tools, including techniques such as visual testing and regression testing to ensure consistency across different platforms and browsers.
## Cypress Snapshot Testing
Cypress Snapshot Testing refers to a testing methodology used within the Cypress testing framework, a popular JavaScript-based end-to-end testing tool. Snapshot testing in Cypress captures the state of a web application’s UI at a specific point in time and compares it to a “snapshot” taken earlier. This approach is particularly useful for ensuring visual consistency and detecting unintended changes in the UI over time.
## [Database Testing](https://www.lambdatest.com/learning-hub/database-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Database testing is a type of software testing that focuses on validating the databases and ensuring data integrity, consistency, and security. It involves rigorously testing the schema, tables, triggers, stored procedures, and other database components. The primary goal is to ensure that the database systems work as expected, handle data correctly, and interact efficiently with applications.
## [Data Driven Testing](https://www.lambdatest.com/learning-hub/data-driven-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Data driven testing is a method of creating test scripts in which test data or output values are read from data files rather than using the same hard-coded values. To achieve greater coverage from a single test, you can run the same test case with different inputs.
## Data Flow Testing
Data flow testing is a form of structural testing that locates test paths in a program according to the locations of definitions and uses of variables.
## Debugging
Debugging is the process of fixing software errors, which begins after the program fails to execute correctly and ends by solving the problem and successfully testing the software. Fixing errors must be made at all stages of debugging, which can be highly complex and tedious.
## Decision Table
A decision table is an excellent tool for testing and requirements management. It is a structured effort to break down the requirements when working with complex rules. Decision tables are implemented to model complicated logic. It helps show all possible combinations of conditions to be considered and what conditions are missed.
## Defect
A defect is a discrepancy between expected and actual results in testing. It is a deviation from the customer’s requirement. An error is found in the product itself after being shipped to the customer.
## [Defect Management](https://www.lambdatest.com/learning-hub/defect-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Defect management involves reducing and identifying bugs in the earlier stages of the software development lifecycle and mitigate their impact. Effective defect management process help in deploying bug-free software applications.
## Deliverable
A deliverable is something that’s delivered. In software engineering, that’s usually code or documentation. Of course, plenty of work makes the deliverable possible, but it isn’t itself a deliverable, such as testing modules or researching the best way to do something.
## [DevOps Testing](https://www.lambdatest.com/learning-hub/devops-automation?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
DevOps testing is a process of automating and streamlining your software’s delivery lifecycle. Many companies employ DevOps testing strategies, starting with the agile practice of Continuous Integration.
## [Distributed Testing](https://www.lambdatest.com/learning-hub/distributed-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Distributed testing is a methodology used in the software development process where multiple systems or components, often located in different geographical locations, work in parallel to execute tests. This approach is particularly useful for large-scale projects and applications that require testing under varied conditions and environments.
## Driver
A software driver is system software that controls the hardware device it is installed in. Hardware devices can be PCs, tablets, smartphones, and so on. It helps different hardware components attached to these devices to communicate with the operating system and other applications so that the components can function.
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## [Dynamic Testing](https://www.lambdatest.com/learning-hub/dynamic-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Software testing that involves executing a system or software application and monitoring its behavior in real-time to assess its quality, performance, and functionality is known as dynamic testing. Dynamic testing’s goals include finding software application flaws, bugs, and errors as well as confirming that it complies with all requirements and quality standards.
## [End-To-End Testing](https://www.lambdatest.com/learning-hub/end-to-end-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
End to End testing is a software testing technique that scrutinizes the functioning of a software/application from the start to the end. It dissects the overall flow of the software and how it functions in different environments. It also checks if the application flow is as expected.
## Error
An error is a difference between what the software is supposed to do or is expected to do and what the software does. A defect in the software can result in erroneous behavior.
## Error Logs
Error logs are computer files documenting critical errors occurring when an application, operating system, or server is operating. Error logs contain entries on various topics, such as table corruption and configuration corruption. They can be handy for troubleshooting and managing systems, servers, and even networks.
## Emulator
The purpose of an emulator is to enable one computer system to behave like another computer system. Emulators typically allow the host system to run software or use peripheral devices designed for the guest system.
## Execute
Test execution is simply performing (executing) the tests to verify specific functionality. This could be either manual test execution — where a person follows all the steps documented in the test cases. Or Automated test cases — where the command is given to execute (run) the steps using an [automation testing tool](https://www.lambdatest.com/blog/automation-testing-tools/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=blog).
## Exhaustive Testing
Exhaustive testing is a thorough process that considers all possible combinations of inputs, usage scenarios, and random situations to ensure that the product cannot be destroyed or crashed. Error logs help developers identify problems, find solutions and determine the root causes of user issues.
## Expected Result
Test execution is simply performing (executing) the tests to verify specific functionality. This could be either manual test execution — where a person follows all the steps documented in the test cases. Or Automated test cases — where the command is given to execute (run) the steps using an automation tool.
## [Exploratory Testing](https://www.lambdatest.com/learning-hub/exploratory-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Exploratory testing combines the tester’s experience with a structured testing approach used during testing phases of intense time pressure. It involves concurrent test case design and execution of an application under test.
## [Extreme Programming](https://www.lambdatest.com/learning-hub/extreme-programming?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Extreme Programming, commonly known as “XP” based on the initials extreme programming — is an agile method focused on software development. While scrum focuses on prioritizing work and getting feedback at the project management level, XP focuses on software development best practices. Therefore, there will be a lot of software references in the following discussion. In addition, XP values and practices can be applied to other knowledge work projects.
## FAT
Factory Acceptance Testing (FAT) is used to verify if the newly manufactured and packaged equipment meets its intended purpose. In addition, the FAT verifies the system’s functioning and ensures the customer’s requirements have been met.
## [Front-end Testing](https://www.lambdatest.com/learning-hub/front-end-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Front-end testing is a type of testing that involves checking the user interface (UI) and how it interacts with the other layers in an application. It’s also called “browser testing,” “front-end validation,” and “functional testing.”
## Functional Integration
Functional Integration associates products and services with an ecosystem that attracts and retains customers.
## [Functional Testing](https://www.lambdatest.com/learning-hub/functional-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Functional testing verifies that each software application function operates according to the requirement. This testing primarily involves black box testing and is not concerned about the application’s source code.
## Future Proof Testing
A software application must be planned and created to be compatible with changes in technology, operating systems, and hardware platforms to pass future-proof testing. It involves thinking ahead to potential changes in the future and designing the application to be easily adaptable to these changes without requiring extensive redesign or redevelopment.
## [Game Testing](https://www.lambdatest.com/learning-hub/game-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Game Testing is a critical process in game development where professionals meticulously evaluate a game’s performance, functionality, and overall quality. This process involves identifying and documenting bugs, glitches, and other issues that could hinder the gaming experience.
## Glass Box Testing
Glass box testing is a program testing technique that examines the program’s structure and derives test data from the program’s logic. The other names for glass box testing are clear box testing, open box testing, logic-driven testing, or path-driven testing.
## Grey Box Testing
In grey box testing, a tester is given partial knowledge of the internal structure of an application. The purpose of gray box testing is to search for and identify defects due to improper code structure or improper use of applications.
## [Headless Browser Testing](https://www.lambdatest.com/learning-hub/headless-browser-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Headless browser testing refers to running browser tests without the graphical user interface (GUI) typically associated with web browsers. This type of testing is particularly useful for automating web application testing, as it allows for faster execution of tests and is ideal for environments where a display screen, mouse, or keyboard is unnecessary.
## History
The brief information of all changes that happened to a test help users identifies the root cause of an error when such occurs.
## IEEE 829
An IEEE 829 is a Software Test Documentation standard that specifies the syntax for the documents to be used in the different testing life cycle.
> Use our [decimal to hex](https://www.lambdatest.com/free-online-tools/decimal-to-hex?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=free_online_tools) tool for quick and accurate results.
## Incident Report
An incident report is a detailed description of the incident observed and contains data like Summary, Steps Used, Priority, Severity, No. of Test Cases Impacted, Status, Assigned To, etc. An incident report is essential as it helps keep track of the incidents and provides information to concerned people.
## [Incremental Testing](https://www.lambdatest.com/learning-hub/incremental-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Incremental testing is a method of integration testing performed after unit testing to test a program’s modules. It uses several stubs and drivers to isolate the modules one by one and reveal any errors or defects in each module.
## Inspection
Inspection attributes to peer review of any work product by trained individuals who look for defects using a well-defined process. An inspection might also be called a Fagan inspection after Michael Fagan, the creator of an overall software inspection process.
## [Integration Testing](https://www.lambdatest.com/learning-hub/integration-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Integration testing occurs after unit testing. It checks for defects in the interactions between integrated components or units. The focus of integration testing is to expose defects at the time of interaction between integrated components or units.
## Iteration
Iterative testing is making small, gradual changes or updates to a product based on insights like test results and user feedback from earlier changes and testing them against predefined baseline metrics.
## Interface Testing
Interface testing is a form of software testing that verifies the correct communication between two applications. The term interface refers to the connection that integrates two components. APIs, Web services, and many other interfaces are found in the computer world. Testing these interfaces is known as Interface Testing.
## [Jest Testing](https://www.lambdatest.com/jest?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Jest is a JavaScript unit testing framework created by Meta. It is most commonly used for writing unit tests, which are used to test individual code functions.
## [JUnit Testing](https://www.lambdatest.com/learning-hub/junit-tutorial?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
JUnit is a Java testing framework that allows developers to write and execute automated tests. In Java, test cases must be re-executed every time new code is added to ensure nothing in the code is broken.
## [Keyword Driven Testing](https://www.lambdatest.com/learning-hub/keyword-driven-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Keyword driven testing is a type of functional testing that isolates test case design from test development. It is a collection of keywords that you can reuse within the same tests. A keyword is the combination of a user’s action on a test object that describes test steps, making test cases easier to understand, automate and maintain.
## [Key Performance Indicators (KPI)](https://www.lambdatest.com/learning-hub/key-performance-indicators?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Key Performance Indicator (KPI) is a measurable value demonstrating how effectively a company, organization, team, or individual achieves key business objectives. KPIs are used to evaluate success at reaching targets and are integral in business and project management.
## [Load Testing](https://www.lambdatest.com/learning-hub/load-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Load Testing is a way to determine how well a system, software product, or application can handle multiple users using it at one time. It determines the behavior of the application under real-life conditions.
## [Localization Testing](https://www.lambdatest.com/blog/how-to-perform-localization-testing/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Localization testing is software testing that ensures a product is culturally responsive to the needs of the people in a specific region. Localization testing ensures that the application can be used in that particular region.
## Maintainability
Maintainability refers to the ability to update or modify the system under test. This is an important parameter as the system is subjected to changes throughout the software life cycle.
## [Maintenance Testing](https://www.lambdatest.com/learning-hub/maintenance-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Maintenance testing is an essential aspect of any quality assurance program, as it allows you to identify equipment problems, diagnose equipment problems, or confirm that repair measures have been effective.
## [Manual Testing](https://www.lambdatest.com/learning-hub/manual-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Manual testing involves verifying whether the functionalities are working as expected or not.
## [Mental Modes](https://www.lambdatest.com/learning-hub/mental-models?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Mental models are frameworks or representations that people construct to understand and interpret the world around them. These models are deeply personal and subjective, shaped by individual experiences, education, cultural background, and other influences. They help simplify complex realities, predict outcomes, and guide decision-making processes.
## [Microservices Testing](https://www.lambdatest.com/learning-hub/microservices-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Microservices testing combines QA activities to ensure that each microservice works appropriately. It ensures that its failure doesn’t result in severe functional disruptions of the entire software and that all microservices smoothly function as one application.
## [Mobile App Testing](https://www.lambdatest.com/learning-hub/mobile-app-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Mobile app testing is the process of validating a mobile application before it is released publicly. Testing mobile apps help ensure the app meets technical and business requirements.
## Mobile Device Testing
Mobile Device Testing is the process by which a device is tested for its qualities to ensure that it meets the requirements for which it was developed.
## MTBF
Meantime between failures (MTBF) calculates the average time between failures of a piece of repairable equipment. It can estimate when equipment may fail unexpectedly in the future or when it needs to be replaced.
## Mutation Testing
Mutation testing is a software testing technique used to evaluate the quality of existing software tests. It involves modifying a program in small ways, creating mutant versions of a program, and assessing the original version’s ability to detect these mutants.
## [Negative Testing](https://www.lambdatest.com/learning-hub/negative-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Negative testing is a software testing approach that ensures an application’s source code and corresponding functionality are fully functional and can handle all input. Invalid data is inserted to compare the output against the given input.
## [Non-functional Testing](https://www.lambdatest.com/learning-hub/non-functional-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Non-functional testing is a testing term that capsulizes various testing techniques to evaluate and assess the non-functional attributes of a software application. This testing methodology’s primary purpose is to evaluate an application’s competency and effectiveness. In addition, non-Functional testing is required to check the system’s non-functional requirements like usability, etc.
## [NUnit](https://www.lambdatest.com/learning-hub/nunit-tutorial?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
NUnit is a popular open-source unit testing framework for C#. It is ported from the JUnit framework and aids in writing tests using the .NET language. Batch execution of tests can be performed through the NUnit-console.exe console runner, which helps load and explores tests with the help of the NUnit Test Engine.
## [Operational Testing](https://www.lambdatest.com/learning-hub/operational-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Operational testing confirms that a product, system, service, and process meets operational requirements. Operational requirements include performance, security, stability, maintainability, accessibility, interoperability, backup, and recovery. It is a type of non-functional acceptance testing.
## [OTT Testing](https://www.lambdatest.com/blog/test-on-ott-devices/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
OTT testing is testing a content provider’s video, data, voice, and capabilities available on the Internet. It is crucial to ensure customer experience, network speed, security, and connectivity. Many application components, networks, and infrastructure setups are linked to providing an effective OTT service.
## Pair Testing
Pair testing is a collaborative effort versus a single-person testing effort. Typically, one of the team members is a tester, and the other is either a developer or a business analyst.
## [Page Object Model (POM)](https://www.lambdatest.com/blog/page-object-model-in-selenium-python/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=blog)
The Page Object Model is a design pattern that creates an object repository for storing all web elements. It helps reduce code duplication and improves test case maintenance.
## Peer Testing
In software development, peer testing is a way of evaluating the work a co-worker performs. The developers must be at par with each other, or the code will fail to run correctly. The peer review technique is adopted in many other professions, too: It involves a team effort, which is productive in pursuing a common goal.
## Performance Indicator
A performance indicator, also known as a Key Performance Indicator (KPI), is a type of performance metric used by testers to evaluate the effectiveness and performance of testing.
## [Performance Testing](https://www.lambdatest.com/learning-hub/performance-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
performance testing analyzes the quality and capability of a product. It is used to determine how well a system performs under varying workloads and how it will handle future demands on its functionality.
## Postcondition
Postcondition is a requirement that must be true right after the execution of some section of code. Postconditions are sometimes tested using predication within the code itself.
## Priority
Priority is the order/importance of an issue/test case based upon user requirements, while severity is the impact of issue/failure of the test case will have on the system. Typically, priority is decided by the business analyst/client, and the tester decides severity as they have seen the impact on the system. This may or may not be followed everywhere.
## [Python Visual Regression](https://www.lambdatest.com/learning-hub/python-visual-regression-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Visual regression testing in Python is a quality assurance process used to ensure that the visual aspects of a web application or UI component remain consistent across different versions or after changes have been made. This type of testing is crucial for identifying unintended visual modifications that might not affect the functionality but could degrade the user experience or the UI’s intended design.
## QA Metrics
QA metrics are processes that software developers use to improve the quality of their products by improving testing. These quality assurance metrics can help predict or observe flaws in a product before it becomes available to consumers.
## Quality
Quality refers to the conformance to implicit or explicit requirements, expectations, and standards. To fulfill these requirements, a quality control mechanism is set up. Quality Control (QC) is how you achieve or improve product quality.
## [Quality Assurance](https://www.lambdatest.com/learning-hub/quality-assurance?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
QA testing, or quality assurance, is the process of ensuring that the product or service provided to customers is of the best possible quality. QA focuses on improving processes for delivering quality products.
## [Quality Management](https://www.lambdatest.com/learning-hub/quality-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Quality management ensures that the products or services a company creates meet a certain level of quality.
## [Retesting](https://www.lambdatest.com/learning-hub/retesting?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Retesting refers to the process of repeating certain tests on a software application after it has undergone changes or modifications. The purpose of retesting is to ensure that the changes made to the software have not introduced any new defects or bugs and that the previously identified defects have been properly fixed.
## [Regression Testing](https://www.lambdatest.com/learning-hub/regression-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Regression testing involves changes to product/software to ensure that the older functions/programs still work with the newly added changes. Regression testing is an integral part of the program development process and is done by code testing specialists.
## [Release Testing](https://www.lambdatest.com/learning-hub/release-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Release testing tests a new software version (project or product) to verify that the software can be released. Release testing has a broad focus since the full functionality of the release is under test. Therefore, the tests included in release testing are strongly dependent on the software itself.
## [Reliability Testing](https://www.lambdatest.com/learning-hub/reliability-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Reliability Testing is a technique of testing a software’s ability to function under environmental conditions and is used to find issues in the software’s design and functionality.
## [Responsive Design](https://www.lambdatest.com/learning-hub/responsive-design?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Responsive design is a UI development approach that generates dynamic changes to the website’s appearance based on the screen size and device orientation. It ensures that the content and screen size are compatible with each other.
## Reviewer
Reviewers are the domain experts who methodically assess the code to identify bugs, improve code quality, and help developers learn the source code. Two or more experts should review the code if the code covers more than one domain.
## [What is Requirement Analysis](https://www.lambdatest.com/learning-hub/requirement-analysis?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Requirements analysis is a crucial phase in project management and software development, involving the systematic examination and documentation of project or system needs. This process helps define clear objectives, scope, and specifications, ensuring that all stakeholders have a shared understanding of what needs to be achieved.
## [Requirements Management Tool](https://www.lambdatest.com/learning-hub/requirements-management-tools?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Requirements management tools manage requirements, communicate those changes to stakeholders, and control new or modified requirements.
## RUP
RUP is a software development process developed by Rational, a division of IBM. It divides the development process into four phases: business modeling, analysis and design, implementation, testing, and deployment.
## [Sanity Testing](https://www.lambdatest.com/learning-hub/sanity-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Sanity testing is an important part of regression testing, which is performed to ensure that code changes are working properly. Sanity testing stops the build if there are problems with the code.
## [Scalability Testing](https://www.lambdatest.com/learning-hub/scalability-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Scalability testing is validating that a software application can be scaled up or scaled out in terms of its non-functional capabilities. Software quality analysts often group performance, scalability, and reliability.
## Scenario
A scenario is one usage example. A piece of software can probably be used for more than one particular thing. Each specific thing some software can be used for can be described with a concrete example. These examples are often referred to as scenarios.
## Screenshot testing
Screenshot testing is a method of automated testing that checks the visual appearance, layout, and other details of a web page or application. Screenshot testing can be used to detect visual regressions — unintended changes that occur while developing or deploying an application and other problems by comparing images taken of the page with a baseline image.
## [Security Testing](https://www.lambdatest.com/learning-hub/security-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Security Testing seeks to uncover all possible loopholes and vulnerabilities in the software system that might result in a loss of information, revenue, or reputation at the hands of employees or outside parties.
## [Selenium Grid](https://www.lambdatest.com/learning-hub/selenium-grid?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Selenium Grid is a part of the Selenium Suite that specializes in running multiple tests across browsers, operating systems, and machines in parallel. It is used to speed up the execution of a test suite by using multiple machines to run tests in parallel.
## [Selenium IDE](https://www.lambdatest.com/learning-hub/selenium-grid?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Selenium IDE is an extension of your testing environment, providing additional tools for logging in, searching for items, and interacting with the user interface.
## [Selenium Python](https://www.lambdatest.com/blog/selenium-ide-what-is-it-why-is-it-must-for-every-qa/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=blog)
Selenium with Python refers to using the Selenium WebDriver for automating web browser interaction using Python as the scripting language. Selenium is a popular tool for automating web browsers, allowing developers and testers to simulate user interactions with web pages. With its simplicity and readability, Python is a popular choice for writing Selenium scripts.
## [Service Virtualization](https://www.lambdatest.com/learning-hub/service-virtualization?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Service Virtualization is a testing practice that simulates the behavior of specific components in heterogeneous component-based applications. This technique enables developers and testers to work in a stable and isolated environment, replicating the behaviors of unavailable or costly-to-involve systems.
## Severity
Severity is defined as the measurement of a defect’s impact on the system of the application/unit being tested. A higher impact on the system functionality will lead to assigning higher severity to the defect. The Quality Assurance Engineer usually determines the severity of the level of defect.
## [Shift-left Testing](https://www.lambdatest.com/learning-hub/shift-left-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The shift left test strategy involves moving the test to the beginning of the software development process. You may reduce the number of errors and enhance the quality of your code by testing your project early and often. The idea is to avoid discovering critical issues when your code will need to be patched at the deployment phase.
## [Shift Right Testing](https://www.lambdatest.com/learning-hub/shift-right-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Shift-right testing is a software testing approach emphasizing testing in later stages of the development lifecycle, including post-release. It complements the traditional shift-left approach, which focuses on testing early in development. Shift-right testing involves monitoring and testing the software in production environments to gather feedback from real-world use.
## [Smoke Testing](https://www.lambdatest.com/learning-hub/smoke-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Smoke testing helps you determine whether the most critical functions of the software applications are working as intended. It identifies mission-critical issues at the earliest, so you can fix them before delving into finer details.
## [Software Risk Analysis](https://www.lambdatest.com/learning-hub/software-risk-analysis?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A software risk analysis examines code violations that could threaten the software’s stability, security, or performance.
## Software Development Life Cycle (SDLC)
The Software Development Life Cycle is a methodology for developing software that involves planning, implementing, testing, and releasing the product. The SDLC ensures that your application meets quality standards, is delivered on time and within budget, and meets changing user needs throughout its lifecycle.
## [Software Quality](https://www.lambdatest.com/learning-hub/software-quality?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Software quality can be defined as the software’s ability to meet the user’s requirements outlined in the SRS (Software Requirement Specifications) documentation. A high-quality software application meets the end-user specifications; it is maintainable, developed on time, and within budget.
## [Software Quality Management](https://www.lambdatest.com/learning-hub/quality-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A software quality management approach aims to establish and manage software quality to ensure that a software application fulfills every expected quality standard set out by the end-user. It also consider the necessary regulatory and development needs and requirements.
## [Software Testing](https://www.lambdatest.com/learning-hub/software-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Software testing evaluates and verifies that a software product or application works as expected, performs as intended, and contains no errors.
## [Software Testing Life Cycle (STLC)](https://www.lambdatest.com/blog/software-testing-life-cycle/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
The Software Testing Life Cycle is a methodology that describes the different steps and tasks involved in testing software applications. Planning, requirements analysis, test design, execution, and reporting are all systematically covered by the STLC. By doing so, it facilitates the identification and mitigation of risks, enhances teamwork, and guarantees that the software application achieves its goals.
## State Transition Testing
State Transition testing is a black-box testing method implemented to observe the system’s behavior for different input conditions passed in series. Both positive and negative input values are given in this testing, and the system’s behavior is observed.
## [Static Testing](https://www.lambdatest.com/learning-hub/static-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Static Testing is a software testing technique performed early in the development cycle without executing the code. It involves reviewing and analyzing software artifacts such as requirements, design documents, source code, and other documentation to identify defects and improve the quality of the software product. Static It can be performed manually, through code reviews, walkthroughs, and inspections, or using automated tools that analyze source code and identify potential issues.
## [Stress Testing](https://www.lambdatest.com/learning-hub/stress-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Stress testing determines the stability or robustness of a system of a given system, critical infrastructure, or entity.
## [Structural Testing](https://www.lambdatest.com/learning-hub/structural-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
It’s testing used to test the structure of software coding. The process combines white-box testing and glass box testing, performed mainly by developers. The testing process intends to determine how the system works, not its functionality. Specifically, if an error message pops, there will be an issue. Structural testing helps to find that issue and fix it.
## System
A system is a set of components formed for a common purpose. The word sometimes describes the organization or plan itself and sometimes describes the parts in the system (as in “computer system”).
## [System Testing](https://www.lambdatest.com/learning-hub/system-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
System testing involves validating how the different components of a software application interact in a fully integrated system. It is performed on the entire system in accordance with either functional or design requirements. With system testing, you can find flaws and gaps in the overall functionality of a software application.
## [System Integration Testing](https://www.lambdatest.com/learning-hub/system-integration-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
System integration testing is a comprehensive technique to test software applications, including the entire system. It ensures that the functional and hardware aspects of the software are in synchronization.
## [Test Analysis](https://www.lambdatest.com/learning-hub/test-analysis?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test Analysis refers to the systematic examination and evaluation of test data or test results to identify patterns, trends, and insights. This process is crucial for understanding the effectiveness and quality of testing procedures, identifying areas for improvement, and ensuring that testing objectives are met efficiently.
## [Test Approach](https://www.lambdatest.com/learning-hub/test-approach?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test approach is a testing strategy that defines how testing will be carried out and the specific tasks that need to be done to carry out a particular project.
## [Test Automation](https://www.lambdatest.com/learning-hub/automation-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test automation tools are used to develop and execute a variety of tests and compare the actual results against the expected results. It can be used for manual processes or as part of a continuous integration system.
## [Test Case](https://www.lambdatest.com/learning-hub/test-case?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test case is a fully documented specification of the inputs, execution conditions, testing procedure, and expected results for one possible outcome of a particular test. Test cases ensure that all areas of the program have been evaluated and that no errors were missed during testing.
## [Test Class](https://www.lambdatest.com/learning-hub/test-class?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test classes are code snippets that ensure the Apex class they test is functioning correctly.
## Test Comparison
Test comparison involves comparing test data of the previously run tests.
## [Test Coverage](https://www.lambdatest.com/learning-hub/test-coverage?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test coverage is a metric software tester uses to gauge how much of the program’s code has been tested. To determine this, the tester records which sections of the program are executed when a test case is run and uses this information to establish whether conditional statement branches have been taken.
## [Test Infrastructure](https://www.lambdatest.com/learning-hub/test-infrastructure?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test infrastructure consists of software and hardware dependencies that ensure software applications run smoothly. It also helps to reduce the failure risk associated with software applications. The test infrastructure includes testing activities and methods that ensure the fastest test execution, resulting in a shorter release cycle and quicker time to market.
## [Test-Driven Development (TDD)](https://www.lambdatest.com/blog/tdd-vs-bdd/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=blog)
Test-driven development (TDD) is a transformational approach to development that combines test-first development. You write a test before writing just enough production code to fulfill that test and refactoring.
## [Test Data](https://www.lambdatest.com/learning-hub/test-data?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test data is input data to the system or software application used for testing it. We can differ test data to test the application to handle error conditions correctly. Therefore, QA should always provide different test data to test the application thoroughly.
## [Test Design Specification](https://www.lambdatest.com/learning-hub/test-design-specification?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test design specification is a detailed plan that defines the testing approach and the features to be tested. It also includes requirements, test cases, and procedures necessary to accomplish the testing and specifies what constitutes success or failure.
## [Test Design Tool](https://www.lambdatest.com/learning-hub/test-design-tool?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test design tools can assist in creating test cases or at least test inputs. If an automated oracle is available, the tool can also make the expected result and thus generate test cases.
## [Test Environment](https://www.lambdatest.com/blog/what-is-test-environment/?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=blog)
A Test Environment is a setup for the testing teams to execute test cases. In other words, it supports test execution with hardware, software and network configured. The testbed or test environment is configured as per the need of the Application Under Test.
## [Test Estimation](https://www.lambdatest.com/learning-hub/test-estimation?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test Estimation, in the context of project management and software testing, is the process of predicting the time, effort, and resources required to complete testing activities. It involves careful analysis and assessment to provide accurate forecasts for planning and budgeting, ensuring that testing is conducted efficiently and effectively within the project timeline.
## [Test Environment Management](https://www.lambdatest.com/learning-hub/test-environment-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test Environment Management (TEM) is a practice that involves creating, maintaining, and controlling test environments in the software testing process. A test environment is a setup where software and hardware configurations are prepared to mirror the production environment as closely as possible, providing a space for accurate and realistic testing.
## [Test Execution](https://www.lambdatest.com/learning-hub/test-execution?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test execution involves running the test cases of software applications to ensure they satisfy the pre-defined user requirements and specifications. It is an essential facet of the Software Testing Life Cycle (STLC) and Software Development Life Cycle (SDLC). Test execution commences with the completion of the test planning phase.
## Test Execution Automation
Test execution can be performed using an automation testing tool directly, or it can be achieved through a management tool that invokes the automation tool. Once the process finishes, the test report provides a consolidated summary of testing performed for the project.
## Test Execution Schedule
A test execution schedule allows you to run steps sequentially at a scheduled time or when triggered by a build completion.
## [Test Execution Technique](https://www.lambdatest.com/learning-hub/test-execution-techniques?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test execution techniques include planning, strategies, and tactics for improving test execution. These techniques have an impact on the test execution but not on the actual “running of the tests.”
## [Test Execution Tool](https://www.lambdatest.com/learning-hub/test-execution-tool?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test execution tool validates the completed software application against a specific test case scenario and compares the test results to the expected outcome and post conditions. As they record or capture manual tests, therefore, also referred as capture/playback tools, capture/replay tools, or record/playback tools.
## Test Harness
Test Harness is a collection of supporting tools, such as stubs and drivers, used during software testing. It executes tests by using a test library and generates test reports.
## [Test Tool](https://www.lambdatest.com/learning-hub/test-tool?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test tool is a product that helps in one or more test activities, such as test planning, requirement gathering, building, and running tests, defect tracking, and test analysis. You can identify the input fields, including the range of valid values, using test management or a Computer Aided Software Engineering (CASE) tool.
## [Test Log](https://www.lambdatest.com/learning-hub/test-log?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test Log is one of the crucial test artifacts prepared during testing. It provides a detailed summary of the overall test run and indicates the passed and failed tests. Additionally, the test log contains details and information about various test operations, including the source of issues and the reasons for failed operations. The focus of this report/document is to enable post-execution diagnosis of failures and defects in the software.
## [Test Management](https://www.lambdatest.com/learning-hub/test-management?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test management includes managing and monitoring the testing processes, documents, and other facets of a software application. It ensures that the software applications are of high quality and have undergone extensive testing.
## [Test Monitoring and Test Control](https://www.lambdatest.com/learning-hub/test-monitoring-and-test-control?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test Monitoring and Test Control are two critical aspects of the software testing process, playing a vital role in ensuring the quality and effectiveness of the testing efforts. They are part of the test management process, essential for coordinating and controlling testing activities during the software development lifecycle.
## Test Observability
Test observability refers to the ability to observe and analyze the behavior and performance of a system or application during testing to detect and diagnose issues and failures. It involves collecting and analyzing data from various sources, such as logs, metrics, and traces, to gain insights into the system’s behavior and identify areas for improvement.
## [Test Methodologies](https://www.lambdatest.com/learning-hub/testing-methodologies?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Testing Methodologies encompass various approaches and strategies used to test and ensure the functionality, reliability, and stability of software applications. These methodologies guide testers through the process of planning, executing, and evaluating tests to identify bugs and issues before a product reaches the end-users.
## [Test Plan](https://www.lambdatest.com/learning-hub/test-plan?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test plan is a document to describe the testing objective and activities. The test lead prepares it, and the target audience is the Project manager, project team, and business(depends). The test plan clearly states the testing approach; Pass/Fail criteria, testing stages, automation plan(if applicable), suspension, resumption criteria, training, etc. It also includes the Testing Risk and Contingency plan.
## [Test Process](https://www.lambdatest.com/learning-hub/test-process?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
In order to make sure that a software application meets the requirements and quality standards specified, a set of activities and tasks known as the test process are carried out in a systematic manner. It entails preparing for tests, creating them, carrying them out, and reporting on them.
## [Test Process Improvement Checklist](https://www.lambdatest.com/learning-hub/test-process-improvement?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A test process improvement checklist is a structured tool used in quality assurance and software testing to assess, track, and enhance testing procedures systematically. It helps teams identify areas for improvement, streamline processes, and ensure that best practices are consistently followed to achieve higher testing efficiency and reliability.
## Test Process Improvement
Test Process Improvement Assessments give an independent and objective assessment of how well an organization performs its testing activities compared to the industry standard.
## Test Policy
Test policy is a document that describes the ways in which an organization plans to test its products. It is determined by senior management at the organization and defines the principles that govern its testing activities.
## [Test Pyramid](https://www.lambdatest.com/learning-hub/test-pyramid?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test pyramid is a type of software development framework that can help developers reduce the time it takes to detect if changes affect existing code. It provides a framework for evaluating the types of tests executed in an automated test suite.
## [Test Report](https://www.lambdatest.com/learning-hub/test-reports?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test report is a brief of objectives, activities, and test results. It is managed to help stakeholders understand product quality and decide whether a product, feature, or defect resolution is on track for release.
## [Test Runner](https://www.lambdatest.com/learning-hub/test-runner?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test Runner is a tool that automates the execution of test cases and collects their results. It is frequently used in software testing to ensure that applications operate correctly and are bug-free. Test runners can be graphical user interfaces (GUIs) or command line tools.
## [Test Scenario](https://www.lambdatest.com/learning-hub/test-scenario?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test Scenario is a high-level description of what needs to be tested in the software application to ensure its correct functionality and performance. It outlines a specific flow of actions or events, providing a clear picture of how a feature or function should work under various conditions.
## [Test Script](https://www.lambdatest.com/learning-hub/test-scripts?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test Script is a set of instructions or lines of code written to verify if a software application functions as expected. It is a crucial component in automated testing, where it helps in executing a series of tasks and comparing the expected with the actual outcome.
## Test Specification
Test specifications are iterative, generative drafts of test design. It allows test developers to develop new versions of a test based on different populations at the item level. In addition, the specs serve as guidelines so that new versions can be compared to previous versions.
## [Test Strategy](https://www.lambdatest.com/learning-hub/test-strategy?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Test strategy outlines the approach used to test a particular software application. A good test strategy will define the exact process the testing team will follow in order to achieve the organizational objectives from a testing perspective.
## [Test Suite](https://www.lambdatest.com/learning-hub/test-suite?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
A Test suite is a sequence of tests that ensure all the features of your application are functioning as expected. An automated test suite runs all the tests automatically and gives you a pass/fail result for each test. Some test suites take hours and sometimes days to complete.
However, automated test suites are suitable since they can be repeated repeatedly without a human being manually clicking and typing through the application. In addition, automated tests stop false results from cropping up due to human error.
## [Top-Down Integration](https://www.lambdatest.com/learning-hub/top-down-integration-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
This process involves testing the high level or the parent modules at the first level, then testing the lower level or child modules, and then integrating. Stubs, a small segment of the code, are used to simulate the data response of lower modules until they are thoroughly tested and integrated.
## [Traceability Matrix](https://www.lambdatest.com/learning-hub/requirements-traceability-matrix?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
In software development, a traceability matrix is a table-type document used to track requirements. In addition to forward tracing (from requirements to design or coding), it can also be used backward tracing (from coding to requirements). Alternatively, it is called Requirement Traceability Matrix (RTM) or Cross Reference Matrix (CRM).
## [User Acceptance Testing](https://www.lambdatest.com/learning-hub/user-acceptance-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
User acceptance testing, also known as end-user testing, is a valuable opportunity for the customer to test the software in its intended environment before it is released, ensuring that the final product meets customer expectations.
## [UI Testing](https://www.lambdatest.com/learning-hub/ui-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
UI testing, also known as user interface testing, validates the UI of the web application to ensure it works smoothly or if there is any glitch that compromises user behavior and does not meet the defined requirements.
## Unit Test Framework
Software tools for writing and executing unit tests, including methods for building tests on a foundation and for executing and reporting results.
## [Unit Testing](https://www.lambdatest.com/learning-hub/unit-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Unit testing involves testing individual units or components of the software. Each software unit is validated to ensure that it performs as intended. Every software program has testable units. It typically has one or a few inputs and one output.
## Use Case
A Use case describes how an actor or user uses the system. It is widely used to develop systems or acceptable level tests.
## [Use Case Testing](https://www.lambdatest.com/learning-hub/use-case-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Use case testing helps you identify all the possible ways users will interact with your software from start to finish. Use cases are often used to test a program’s error-handling capabilities and its overall robustness.
## [Usability Testing](https://www.lambdatest.com/learning-hub/usability-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Organizations employ usability testing to gain firsthand insight into how people interact with a software application. It is a qualitative research approach that helps in the identification of usability issues and the evaluation of whether the software is user-friendly.
## Validation Testing
Validation testing is studying and verifying the specific requirements of a particular development stage to ensure that the final product meets customer expectations. It does not require executing code, but it can be used to verify that the code works as expected.
## Verification
Verification refers to activities that ensure that software correctly implements a specific function. Verification is done against the design. It verifies that the developed software implements all the functionality specified in the design document.
## [Visual Testing](https://www.lambdatest.com/learning-hub/visual-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Visual testing is a quality assurance process that systematically compares the appearance of web pages or applications across different environments and screens to ensure consistent and accurate visual presentation.
## [Visual Regression Testing](https://www.lambdatest.com/learning-hub/visual-regression-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Visual regression testing is a kind of software testing in which the appearance and usability of the user interface are checked after a code change. Visual regression testing ensures that new code does not affect existing functionality.
## [White Box Testing](https://www.lambdatest.com/learning-hub/white-box-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
White box testing validates a software solution’s internal coding and infrastructure. It focuses primarily on strengthening security, the flow of inputs and outputs through the application, and improving design and usability. White box testing is also known as Clear Box testing, Open Box testing, Structural testing, Transparent Box testing, Code-Based testing, and Glass Box testing.
## [Web Services Testing](https://www.lambdatest.com/learning-hub/web-services-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Web Services Testing involves validating web services and their interactions to ensure their functionality, reliability, performance, and security. This testing approach focuses on web services — self-contained, modular applications that can be described, published, and invoked over a network, typically the Internet.
## [What is XCode?](https://www.lambdatest.com/learning-hub/what-is-xcode?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
XCode is Apple’s integrated development environment (IDE) used for creating software for macOS, iOS, watchOS, and tvOS. It offers developers a comprehensive suite of tools designed to streamline the process of developing, testing, and debugging applications for Apple devices.
## [Web Application Testing](https://www.lambdatest.com/learning-hub/web-application-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Web application testing is a comprehensive process that involves evaluating web applications for functionality, usability, security, compatibility, performance, and other critical factors. This type of testing ensures that web applications meet their specified requirements and can handle anticipated traffic while providing a seamless and secure user experience.
## Web Performance Testing
Web performance testing is the process of evaluating a web application’s speed, responsiveness, and stability under various load conditions. Web performance testing is crucial for identifying potential bottlenecks and issues with your app so you can fix them before your customers do.
## Web Test Automation Tools
Web test automation tools are essential to creating a solid product and enabling continuous integration, agile development, and DevOps to keep up with constantly changing demand.
## [WebDriver](https://www.lambdatest.com/learning-hub/webdriver?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
An open-source browser automation framework called WebDriver allows developers and testers to create automated tests that interact with web pages and validate the usability and behavior of web applications. With WebDriver, testing is possible on all OS by supporting a variety of web browsers, including Chrome, Firefox, Internet Explorer, and Safari.
## [Web Testing](https://www.lambdatest.com/learning-hub/web-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_24&utm_term=bw&utm_content=learning_hub)
Web testing is necessary for any web developer before making a web application or website live. Web testing is designed to check all aspects of the web application’s functionality, including looking for bugs in usability, compatibility, security, and general performance.
## XPath Query
XPath is a query language that scans and manipulates data from XML documents. It allows RUEI to retrieve data from XML documents for content scanning.
| devanshbhardwaj13 |
1,870,339 | 9 Factors to Consider When Choosing Between Tower, Rack, and Blade Servers | Your company has outgrown its existing server setup and it's time to upgrade. But with tower, rack,... | 0 | 2024-05-30T11:42:17 | https://dev.to/adelenoble/9-factors-to-consider-when-choosing-between-tower-rack-and-blade-servers-2odh | Your company has outgrown its existing server setup and it's time to upgrade. But with tower, rack, and blade hosts all vying for your attention, how do you choose the best option?
You can't afford to make a mistake. You need a solution that can support your company's growth for years to come while also fitting within your budgetary constraints. Tower, rack, and blade servers each have their pros and cons, so thoroughly evaluating your specific requirements is essential.
This guide will walk you through 9 key factors to consider as you embark on your server selection journey.
### 1. Consider Space Constraints and Expandability
If you happen to have no space, a rack server will be the ideal solution for you.
- These 1-inch high and 1-inch wide units are intended to squeeze in as much as possible by stacking vertically in a typical 19-inch rack.
- And not only that, each blade server can see the compact, multiple server nodes housed in a single cabinet and can, thus, accommodate remarkable density.
- But on the other hand, space plants located in close proximity have a lack of opportunity for expansion in the future. The most space-consuming elements are probably the [**tower servers**](https://www.lenovo.com/ch/de/c/servers-storage/servers/towers/); however, since their expansion is as easy as simply adding more standalone units as your needs grow, this will reduce the eventual bill for running your infrastructure.
Mention the possibility of expanding your shortlisted solution as one way of charting the path ahead.
### 2. Weigh Processing Power and Performance Needs
The tower hosts can provide powerful CPU processors and a lot of memory in order to process data-intensive workflows. They also, in fact, accommodate many-core CPUs and a huge amount of memory.
Rack operationality is improved by adding processing power in a limited space using dual-socket motherboards and high-capacity DIMMs. Blade servers consolidate computing power across more than one node, so the result is a combination of computing power and massive performance.
As you are evaluating your process loads, calculate the current and future processing power to be sure the type of server you have chosen will be robust enough to manage the workload requirements now and those you are also going to require in the future.
### 3. Consider Energy Efficiency and Power Usage
The energy costs related to data center usage can be substantial, so the focus is on utilizing resources and maximizing efficiency. Competitive power supplies for small nodes constitute energy savings for blade hosts. Centralized power delivery significantly simplifies traditional cooling methods, which is another benefit of rack hosts.
The problem is the limited space, and more heat affects the result of the equilibrium, and then it needs an expensive chill system. Server towers feature power supplies integrated into them (such systems) but need more space, increasing the cooling demand. Evaluate what kind of power and cooling are required in order to provide you with an energy-effective solution that best suits your conditions.
### 4. Assess Manageability and Administration Needs
Tower servers offer simple management through their standalone, self-contained design. Rack hosts and blade chassis introduce centralized management consoles for administering multiple nodes from a single interface. This streamlines administration and firmware/driver updates. However, blade hosts require additional skills to configure and troubleshoot the enclosure. Consider your team's skills and whether a consolidated or distributed management model best suits your maintenance workflow.
### 5. Consider Budget and Total Cost of Ownership
While tower servers have a lower upfront cost due to their simplicity, they may end up more expensive over time. Rack and blade solutions offer better utilization of expensive server components through higher density.
Their centralized management also reduces administration overhead. Power and cooling expenses are lower in dense configurations. Consider upfront and ongoing expenses like hardware, power, cooling, administration, and rack space over a 5-year period to determine the true cost. The most affordable option upfront may not be the most cost-effective long-term solution.
### 6. Evaluate Upgrade Options and Lifecycle Management
Tower servers are modular, allowing flexible upgrades by swapping components. However, each unit must be serviced individually. Blade chassis facilitate easy component swaps and upgrades across entire enclosures through their centralized architecture. Rack hosts offer a balance with field-replaceable components. Consider how easily you can perform upgrades and end-of-life equipment replacements. Opt for a solution with a clear upgrade path and simplified lifecycle management process.
### 7. Gauge Support and Service Level Needs
Tower servers are simple for in-house maintenance but require an on-site technician for repairs or warranty claims. Rack and blade solutions support faster, often remote diagnosis and part replacement through centralized monitoring. Enterprise-class vendors also offer lucrative service-level agreements. Assess your internal support capabilities and desired service level to determine whether a do-it-yourself or managed support model is preferable.
### 8. Consider Physical Security and Access Controls
Tower hosts placed in offices or data closets have looser physical security than purpose-built server rooms. [Rack server](https://www.lenovo.com/ch/de/c/servers-storage/servers/racks/) and blade configurations centralized in secure server rooms allow for tighter access controls through locked cabinets and enclosures. If regulatory compliance or IP protection is important, prioritize solutions suitable for restricted-access environments. However, remote hand administration may be necessary for repairs. Weigh security versus serviceability.
### 9. Choose the Right Fit for Your Unique Environment
While each server form factor has merits, only one may be optimal for your specific infrastructure, budget, skills, and growth trajectory. Tower servers offer flexibility and simplicity, rack units maximize density within physical constraints, and blade solutions deliver unparalleled consolidation. Consider all factors holistically rather than focusing on any single attribute. With care and diligence, you'll uncover the right fit to power your business operations reliably for years to come.
## Final Words
Choosing a server solution is a complex process that requires evaluating your technical requirements, management needs, budgetary picture, and unique environmental constraints to select the best match. This guide has explored 9 key considerations spanning performance, power usage, administration overhead, costs, upgrade options, support needs, security, and more. Armed with a deeper understanding of tower, rack, and blade servers, you now have the insight needed to make an informed selection tailored precisely to your company's needs. | adelenoble | |
1,869,379 | Running Three Tier Application using Docker | Docker-Blog Running Three Tier Application using Docker To run Three Tier Application... | 0 | 2024-05-30T11:41:44 | https://dev.to/vikasyadav79/running-three-tier-application-using-docker-2nn7 | docker, devops, microservices, cloudcomputing | ## Docker-Blog
<p style="color: #666;">Running Three Tier Application using Docker</p>
To run Three Tier Application using Docker, we need to first create a Full Stack Project. We can use any of our Full Stack Project but if we don't have one then we can use someone else project also. Here, I have used a very easy simple project on GitLab. The link to this project is https://gitlab.com/nanuchi/developing-with-docker. This project is made using HTML, CSS, JavaScript, Express and MongoDB.
## **Architecture Of Our Project**
- First you need to clone the Project Repository from the link using command ```git clone https://gitlab.com/nanuchi/developing-with-docker```
- 
- Files Present in Current Cloned Project
To run a Three Tier Application, we need to run three Docker Containers simultaneously. So, it is necessary to run all these containers inside a network to avoid their interaction with other containers.
- So, Network can be created by using the following command after starting the Docker Engine with name __mongo-network__ <br> ```docker netowrk create mongo-network```
You can see all the networks using the command: ```docker network ls```. Now, we need to pull the image of MongoDB from DockerHub and make container from it. Then we need to run this container in the network to access MongoDB Database using Docker Container.
- To pull MongoDB image from DockerHub and run it as container we need to execute the command <br> ```docker run -p 27017:27017 -e MONGO_INITDB_ROOT_USERNAME=admin -e MONGO_INITDB_ROOT_PASSWORD=password --network=mongo-network --name=vikasmongodb -d mongo```
Here, the __mongo__ image will be automatically pull from the DockerHub to run the Container in __detachable mode__ with name __*vikasmongodb*__ in the network __mongo-network__. The Container will be running on the default *27017 port*. You can check all the running containers using command ```docker ps```. Environment Variables *Username* and *Password* are also passed to run the container. Similarly, we will be creating another container of *Express* by pulling its image from the DockerHub.
- Express Container can be run by using the follow command <br>```docker run -p 8081:8081 -e ME_CONFIG_MONGODB_ADMINUSERNAME=admin -e ME_CONFIG_MONGODB_ADMINPASSWORD=password -e ME_CONFIG_MONGODB_SERVER=vikasmongodb --network=mongo-network --name=vikasmongo-express -d mongo-express```
Here, the container with name __*vikasmongo-express*__ is made to connect the MongoDB Database with the Frontend of the project in Docker. As explained above, the container will run on *8081 port*. The environment variables Username and Password are passed of the MongoDB to access the Database along with the container name of the MongoDB in the Server Environment variable. The container will be running on the same network as the above container.
- Now, open the link in your browser ```localhost:8081``` and create two databases __my-db__ and __user-accounts__.
Creating these two databases is necessary as the Frontend will be requiring these while running. Also, we need to change the MongoDB URL mentioned in the server.js file as we will be running MongoDB using Docker instead of Local Machine.
- Naviagate to the ```server.js``` file in the project and replace ```mongoUrlLocal``` and ```mongoUrlDocker``` with the following value ```mongodb://admin:password@vikasmongodb:27017```
- Now, we need to delete the Dockerfile already provided in the project and create a new Dockerfile inside the ```app``` folder of the project with the following commands<br> ```FROM node
WORKDIR /app
COPY . .
ENV MONGO_DB_USERNAME=admin
ENV MONGO_DB_PWD=password
RUN npm install
EXPOSE 3000
CMD ["node", "server.js"]```
Now, we need to create a Docker Image by building the Docker file to run it as a container in the network.
- Open the __CMD__ Terminal inside the ```app``` folder of the project and run the command <br> ```docker build -t 21bcp379-assignment```
The execution of the above command will generate a Docker Image with name __21bcp379-assignment__ and it will take some time for it. After the Image is created we need to Run it as a Docker Container.
- To run the Image as a Docker Container run the command <br> ```docker run -d -p 3000:3000 --network=mongo-network --name=21bcp379-app 21bcp379-assignment```
After the above command is executed, it will run a Docker Container in *detachable mode* with name __21bcp379-assignment__ in the same network.
- Now, open the following link on you browser ```localhost:3000``` and you will see a webpage running.
- To push the Docker Image of the project run the command <br> ```docker tag 21bcp379-app vikas79/blog-app-21bcp379``` and then ```docker push vikas79/blog-app-21bcp379```
That's it now you can see your image on docker hub repoistory
- 
| vikasyadav79 |
1,870,338 | A quick comparison: Streamlit, Dash, Reflex and Rio | Many data scientists lack a background in computer science or software engineering. Even those who do... | 0 | 2024-05-30T11:41:20 | https://dev.to/sn3llius/a-quick-comparison-streamlit-dash-reflex-and-rio-57gf | python, opensource, datascience | Many data scientists lack a background in computer science or software engineering. Even those who do may not enjoy developing web applications or front-end user interfaces to showcase their work. Additionally, those who occasionally appreciate “pure” software engineering might be reluctant to allocate significant portions of their data science budget to perfecting CSS directives for optimizing button and chart appearances across various devices. Ultimately, a data science project is centered around a data-driven question, and it’s generally advisable to minimize ancillary costs, especially during early stages, demos, and proofs of concept.
In this article, we will examine three major frameworks, along with a newly introduced one in this category: Rio, Reflex, Streamlit, and the older, more established Dash from Plotly. We believe these four frameworks span the simplicity-flexibility spectrum and can address the majority of use cases in data science projects. Our focus is on Python, as it is the most widely used programming language in the data science community. Rio, Reflex, Streamlit, and Dash are all native to Python, with Dash also supporting R and Julia.
## Streamlit
Streamlit stands out for its simplicity, enabling the creation of appealing web applications atop a data science or machine learning backend with just a few lines of code. This simplicity is achieved through its unique UI model that bypasses explicit event handling or functional programming, which are common in other UI frameworks. Instead, Streamlit employs a linear-flow, imperative execution model for the UI code. Each UI widget corresponds to a variable in the Python code, and any change in the state or value of the widget triggers the re-execution of the code from the point where the widget is defined. This linear execution model makes it straightforward to add a web UI to a computation backend, often as simple as replacing parameter definitions with Streamlit widget definitions.
Streamlit supports a wide range of widgets, including sliders, buttons, and text inputs, which can be easily used to build interactive and dynamic web applications. Developers can also leverage its built-in support for displaying data frames, charts, and images directly from their Python code, enhancing the presentation of data and results.
Streamlit’s active community provide extensive resources, including documentation, tutorials, and community-contributed projects. This support network helps developers quickly get up to speed and build effective applications. Furthermore, Streamlit Cloud offers a platform for deploying and sharing applications with others, making collaboration and distribution effortless.
**Pros:**
- Streamlit is accessible to anyone who understands Python, with almost no need for HTML or CSS knowledge.
- It offers a broad range of UI components, covering nearly every common element such as checkboxes, sliders, collapsible sidebars, radio buttons, file uploads, progress bars, and more. These components are very user-friendly.
- It supports various interactive visualization libraries like Matplotlib and Vega-Altair.
- It supports live/ hot reloading
**Cons:**
- Although not difficult, Streamlit requires some time to learn its specific syntax.
- Streamlit has limited flexibility. It is Python-based, offers a limited set of widgets, and does not integrate with Python Notebooks.
- There’s no built-in state management; whenever there’s a state change, the entire script restarts. While caching can alleviate this, it complicates Streamlit’s otherwise straightforward approach.
- Insufficient type annotation support.
## Plotly Dash
Dash operates on top of the Python web framework Flask, the web UI library React.js, and the JavaScript plotting library Plotly.js. It is available for both Python and R, making it accessible to a wide range of developers and data scientists.
Dash employs a dual business model, offering its open-source software via pip under an MIT license with no limitations. The open-source version is fully featured and includes everything needed to create web-based dashboards. For enterprises needing more advanced features, Plotly provides Dash Enterprise, which includes enhanced security, scalability, and deployment options, as well as premium support and additional components tailored for business needs.
While a Dash app can achieve full responsiveness like any other web application, it requires significant effort from the developer to implement, as responsiveness is not provided out of the box. This flexibility allows developers to create highly customized and interactive applications, but it also means that a solid understanding of web development principles is beneficial.
Dash is versatile and can be used in various domains such as data exploration, data analysis, modeling, visualization, instrument control, and reporting. It supports a wide range of interactive elements like sliders, dropdowns, and graphs, which can be easily linked to create dynamic and responsive user interfaces. Additionally, Dash’s integration with Plotly’s powerful plotting capabilities allows for the creation of complex and informative visualizations with minimal code.
For those looking to extend the capabilities of their Dash applications, there is a vibrant community and extensive documentation available, along with numerous tutorials and examples provided by Plotly.
**Pros:**
- Dash applications are reactive.
- Dash is more customizable than Streamlit. Also, Dash offers better performance.
- Comes with a lot of dev tools like: Callback graph, Code reloading, hot reloading, component validation and more.
**Cons:**
- Dash is more focused on the enterprise market and doesn’t include all of it’s available features in the open source version like: features such as authentication, CI/CD, technical support and so on.
- Dash is more verbose than Rio, Reflex or Streamlit; you have to write more code to create simple web applications compared to other frameworks.
- You need to know HTML and CSS to get most out of it.
## Reflex
One of Reflex’s key advantages is that it enables developers to write their entire web app — including frontend, backend, and deployment — using only Python. This eliminates the need to learn and any JavaScript, HTML, CSS, but it is usefull for debugging. With Reflex, knowing Python is sufficient to build complete, professional web apps, ranging from basic sites to complex, interactive applications.
Reflex employs a declarative, state-driven model that will be familiar to React developers, but it implements this model entirely in Python, without any JavaScript. Developers can build their entire frontend UI using only Python components, assembling them to create interactive layouts, with JavaScript being compiled in the background.
Variables are automatically synchronized across the frontend and backend. When a reactive variable is updated on the backend, the change is instantly pushed to the frontend via a WebSocket connection, ensuring the UI is always in sync with the latest server state. Reflex utilizes Uvicorn for its operations.
**Pros:**
- Offers database ORM with automatic migrations
- Provides user authentication and secure session management
- Supports asynchronous background tasks
- Manages state, including component state
**Cons:**
- No production-ready release yet, so breaking changes might occur
- Requires compiling to JavaScript, making debugging more challenging
- Lacks live/hot reloading, causing delays when compiling changes and updating the browser
## Rio
Rio is an innovative new GUI framework that allows the creation of modern web apps with just a few lines of Python. This is achieved by adhering to the core principles of Python, known for its simplicity and conciseness. Rio embodies this philosophy, eliminating the need to learn additional languages like HTML, CSS, or JavaScript. All UI, logic, components, and layout are managed entirely in Python. Additionally, there is no division between front-end and back-end, as Rio seamlessly handles all communication.
Rio leverages FastAPI to manage API requests and uses Uvicorn for serving web applications. On the front end, theire stack includes TypeScript, CSS, and HTML, ensuring a responsive and dynamic user experience. Websockets were employed to enable real-time client-server communication. For the backend, Python was the primary language, handling the core logic and also functioning as the interface for user interactions. Rio includes over 50 beautifully handcrafted components right out of the box. Furthermore, a community repository is planned where users can create and share their own components, ensuring the right component is always available for the next app.
These components are combined using a React-style declarative approach, making code more readable and easier to maintain. Attributes can be bound between components using Vue-style bindings, resulting in concise and understandable code.
Finally, Rio apps can run both locally and on the web without any changes to the codebase, with the only difference being how the app is started.
**Pros:**
- Rio manages both the front-end and back-end seamlessly, making them virtually invisible to the user.
- Rio utilizes modern Python features, including type annotations and asynchronous programming. This ensures code remains clean and maintainable, and aids your code editor in providing code completions and type checking.
- As Rio runs on Python, you can directly connect to the running process with a debugger, simplifying the process of identifying and fixing bugs in your code.
- Rio has its own layout system, so there’s no need for HTML, CSS or JavaScript.
**Cons:**
- Unable to create custom fundamental components in HTML/CSS/JavaScript at this time.
- No production-ready release yet, so breaking changes may occur.
- Rio has a smaller community than some of the other packages, making it harder to find resources about it.
## Conclusion
Choosing the right framework for building web applications in python depends on the specific requirements and context of your project, including your familiarity with different programming languages, the complexity of the application, and the need for customization or enterprise features. Here’s a brief summary of which framework works best for which domain:
### Streamlit
**Best For:** Rapid prototyping for very small data science, and machine learning applications.
**Strengths:** Extremely simple and intuitive for Python developers, quick to set up, ideal for creating interactive data visualizations and dashboards without needing extensive knowledge of web development.
**Limitations:** Limited flexibility, not suitable for highly customized or a little bit more complex applications.
### Plotly Dash
**Best For:** Enterprise-level applications, data visualization, and projects requiring high customization.
**Strengths:** Highly customizable, supports complex interactive visualizations, reactive applications, extensive documentation and community support.
**Limitations:** Requires knowledge of HTML, CSS, and JavaScript for advanced features, more verbose and requires more effort for simple applications.
### Reflex
**Best For:** Full-stack web applications where developers prefer to work solely with Python.
**Strengths:** Enables writing frontend and backend entirely in Python, state-driven model familiar to React developers, supports asynchronous tasks and secure session management.
**Limitations:** Not yet production-ready, potential for breaking changes, debugging can be challenging due to JavaScript compilation and a lack of good dev tools.
### Rio
**Best For:** Developers seeking to build modern full-stack web apps with a strong preference for Python-only development.
**Strengths:** Manages both front-end and back-end in Python, eliminates the need for CSS/JavaScript, utilizes modern Python features, easy debugging and supports asynchronous tasks and secure session management.
**Limitations:** Limited ability to create custom components with HTML/CSS/JavaScript, not yet production-ready, smaller community.
## Recommendations by Domain
**Small Projects:** Streamlit is ideal for its simplicity and ease of use, making it perfect for data scientists who want to create interactive applications quickly like PoCs.
**Enterprise and Highly Customized Dashboard Applications:** Plotly Dash offers the customization and advanced features necessary for enterprise-level applications and complex data visualizations.
**Full-Stack Python Web Development:** Reflex and Rio are excellent choices for developers who want to build full-stack applications without leaving the Python ecosystem. Reflex is more mature with features like ORM and user authentication, while Rio, though new, emphasizes simplicity, seamless Python integration, and aims to deliver big changes in performance and customization.
By selecting the appropriate framework based on your project’s needs and your own development skills, you can efficiently create robust and interactive web applications.
## Links
- https://streamlit.io/
- https://dash.plotly.com/
- https://dash.plotly.com/devtools
- https://reflex.dev/
- https://reflex.dev/blog/2024-03-21-reflex-architecture/
- https://rio.dev/
- https://github.com/rio-labs/rio | sn3llius |
1,869,860 | Building Paymaster Using Zksync-Ethers And Next Js | What is paymaster? (ERC- 4337) This project is to onboard developers to Zksync ecosystem... | 0 | 2024-05-30T11:40:53 | https://dev.to/amity808/building-paymaster-using-zksync-ethers-and-next-js-4n75 | web3, blockca, ethers, nextjs | ## What is paymaster? (ERC- 4337)
This project is to onboard developers to Zksync ecosystem utilizing Zksync ethers to build their dapps with nextjs. In this technical tutorial, we developed a simple smart contract which is known as Bank.sol. This tutorial adopted what is known as account abstraction, where we use Paymaster to pay the gas fee for every transaction the user performs on a dapp.
Paymaster is a mechanism to pay for user's network gas fees, they are executable sets of codes that pay for users' transaction which comes from account Abstraction. Account Abstraction is a system put in place where user's assets are stored on smart contracts rather than externally owned account EOA. It improves users' experience which solve the issue where a user lost their private key. Account Abstraction can come in different phases it depends on how they are designed for different purposes. They are backed up by smart contracts, and user's wallets are generated with the smart contract, which allows the user to manage their assets on smart contracts. Accounts generated by the smart contract can also perform transactions the way EOA performs transactions.
Zksync is a layer 2 scaling Ethereum solution that adopts ZK rollups. They help to reduce the congested Ethereum network and reduce the transaction fee on Ethereum. We will be looking at how we can use Paymaster with our Next js, and how to implement Paymaster to pay for each transaction performed by users on the Zksync. Paymaster allows a third party to sponsor gas fees.
> IPaymaster interface
EIP4337, our account abstraction protocol supports paymasters: accounts that can compensate for other accounts' transactions execution.
> Each paymaster should implement the IPaymaster interface. It contains the following two methods:
> validateAndPayForPaymasterTransaction is mandatory and will be used by the system to determine if the paymaster approves paying for this transaction. If the paymaster is willing to pay for the transaction, this method must send at least tx.gasprice * tx.gasLimit to the operator. It should return the context that will be one of the call parameters to the postTransaction method.
> postTransaction is optional and is called after the transaction executes. Note that unlike EIP4337, there is no guarantee that this method will be called. In particular, this method won't be called if the transaction fails with out of gas error. It takes four parameters: the context returned by validateAndPayForPaymasterTransaction, the transaction itself, a flag that indicates whether the transaction execution succeeded, and the maximum amount of gas the paymaster might be refunded with.
> [Reference from Zksync Docs You can read More from there](https://docs.zksync.io/build/developer-reference/account-abstraction.html#iaccount-interface)
### To get started
Run this to create a template from Zksync, this will create a custom paymaster smart contract by Zksync and set your hardhat project direction.
```
npx zksync-cli create custom-paymaster-tutorial --template hardhat_solidity
```
You file directory should look like this
Install all the necessary dependencies depending on the package installer you
```
yarn install or
npm install
```
Navigate to your Contract directory
```
cd contract/paymasters
```
We are going to be utilizing GeneralPaymaster for our gas-sponsoring paymaster, you don't have to worry about writing the full logic it has already created, you can decide to customize it in your preferred way.
We need to compile our smart contract
```
yarn compile
```
Create a new file name .env in your root folder to add your private key to deploy.
```
WALLET_PRIVATE_KEY=
```
To deploy your GeneralPaymaster smart contract. In your project root direct
```
cd deploy
```
Create file name deploy-paymaster.ts to deploy the General paymaster. Copy and paste this code
```
import { deployContract } from "./utils";
export default async function () {
const contractArtifactName = "GeneralPaymaster";
await deployContract(contractArtifactName);
}
```
To deploy your GeneralPaymaster on your Terminal run
```
yarn hardhat deploy-zksync --script deploy-paymaster.ts
```
> Copy your paymaster address to a safe place, we utilize it for sponsoring gas fees.
## Initialized your next js project.
```
npx create-next-app my-project
```
Install these dependencies
```
npm install @rainbow-me/rainbowkit wagmi viem@2.x @tanstack/react-query @zksync-ethers @ethers @react-toastify
```
You might want to remove the ones you won't be using just for easy walkthrough I install some dependencies.
I will be utilizing a simple smart contract which you can file in this tutorial which is created in generated template of zksync. You can get it
```
cd hello-zksync/contract/Bank.sol
```
In my next js project root directory, I created a folder named abi folder where I placed bank abi and deployed the contract on Zksync sepolia testnet.
In your nextjs root file create .env add your environment variable.
```
NEXT_PUBLIC_WALLET_PRIVATE_KEY=your_private_key
```
> Do not push your .env to GitHub
```
cd pages/index.jsx
```
or in your page.js depends on how you structure your nextjs project folder
That is where we will be interacting with our smart contract and using Paymaster for gas fee transactions. Import all the necessary items that will be used to connect to your wallet and interact with the smart contract
Define your useState from react to handle any balances, paymaster balance changes from the smart contract, and the amount you are sending to the smart contract.
Set your paymaster address, get your wallet and a new provider as well to interact with your smart contract.
Initiate your contract instance
> Your code should look like this
Define your paymaster custom data which will be recognized by the on-chain that the paymaster is sponsoring for the smart contract gas fee. It can be ApprovalBase or General, We want it to pay for it generally not approval base.
Define a function to handle the deposit function in the smart contract, which will send ether to the smart contract address
Define a function to handle the withdraw function in the solidity smart contract, which will withdraw ether from the smart contract address to the wallet of the user that deposited.
Define a useEffect from react and a function to keep fetching the balance of the paymaster and smart contract deposited balance
Implement your custom function with your frontend.
**To use Viem for Zksync paymaster account abstraction.**
Create helper folder in your src directory name a file wagmiconfig.js
Define your wallet client and public client, which we use to interact and connect to our smart contract.
```javascript
// Check if the code is running in a browser environment and if the 'ethereum' object is available on the 'window' object
export const walletClient = typeof window !== 'undefined' && window.ethereum
? // If both conditions are true, create a wallet client using the provided Ethereum provider (window.ethereum)
createWalletClient({
chain: zkSyncSepoliaTestnet, // Specify the chain to connect to (zkSync Sepolia Testnet in this case)
transport: custom(window?.ethereum), // Use a custom transport with the Ethereum provider
}).extend(eip712WalletActions()) // Extend the client with additional EIP-712 wallet actions
: // If either condition is false, set 'walletClient' to null
null;
// Create a public client that can be used for read-only operations on the zkSync Sepolia Testnet
export const publicClient = createPublicClient({
chain: zkSyncSepoliaTestnet, // Specify the chain to connect to (zkSync Sepolia Testnet in this case)
transport: http() // Use HTTP transport for connecting to the chain
});
```
in your index page there you want to implement the paymaster
```javascript
// import utils to get paymaster params
import { utils } from "zksync-ethers";
// Define 'params' by calling 'utils.getPaymasterParams' to generate parameters for a paymaster
const params = utils.getPaymasterParams(
paymasterAddress, // The address of the paymaster
{
type: "General", // Specify the type of paymaster operation (in this case, "General" or "ApprovalBased")
innerInput: new Uint8Array(),
}
);
```
Define your handleDepositSave to sign the transaction with your metamask
```javascript
// Define an asynchronous function to handle the deposit save operation
const handleDepositsave = async (e) => {
e.preventDefault(); // Prevent the default form submission behavior
try {
// Request accounts from the user's wallet
const [account] = typeof window !== 'undefined' && window.ethereum
? await window.ethereum.request({ method: 'eth_requestAccounts' }) // Request accounts if in a browser with Ethereum provider
: [];
if (!account) {
throw new Error("No account found. Please connect your wallet."); // Throw an error if no account is found
}
console.log("Using account:", account); // Log the account being used
const convertToEthers = parseEther(amount.toString() || "0"); // Convert the input amount to ethers
// Simulate the contract interaction
const result = await publicClient.simulateContract({
address: bank.address, // Address of the bank contract
abi: bank.abi, // ABI of the bank contract
functionName: "deposit", // Name of the function to call
args: [], // Arguments for the function
value: convertToEthers, // Ether value to send with the function call
account, // Account to perform the operation
paymasterInput: params.paymasterInput, // Paymaster input parameters
paymaster: paymasterAddress, // Address of the paymaster
});
// Log the result of simulateContract
console.log("simulateContract result:", result);
const { request } = result; // Extract the request object from the simulation result
// Log the request object for debugging
console.log("Request object:", request);
if (request) {
// Perform the contract write operation
const response = await walletClient.writeContract({
...request, // Spread the request object into the writeContract call
});
console.log("Transaction response:", response); // Log the transaction response
} else {
throw new Error("Request object is undefined"); // Throw an error if the request object is undefined
}
} catch (error) {
console.error("Error during deposit:", error); // Catch and log any errors that occur during the process
}
};
```
```javaacript
<main className="flex flex-col items-center justify-between p-24">
<ConnectButton />
<div className="z-10 max-w-5xl w-full items-center justify-between font-mono text-sm lg:flex">
<p className=" text-white">Contract balance is {smartBalance}</p>
<p>Set Paymaster Balance {paymasterBalance}</p>
<form onSubmit={handleDepositsave}>
<input type="text" placeholder="Enter Eth amount" className=" text-black font-medium text-[16px] p-4" onChange={(e) => setAmount(e.target.value)} />
<button className="rounded-md border-2 border-white p-2" type="submit">Send</button>
</form>
<button onClick={withdrawSavings} className=" rounded-md border-2 border-white p-2">Withdraw</button>
</div>
</main>
```
For the GitHub source code you can find it here
[Source Code](https://github.com/Amity808/zksync-paymaster-tutorial)
For further references check [Zksync Doc](https://docs.zksync.io/)
| amity808 |
1,870,336 | Help!! Seeking advice: How to effectively study and get along with JavaScript? | Hey fellow devs! I'm reaching out for some guidance on studying and working with JavaScript. As a... | 0 | 2024-05-30T11:39:56 | https://dev.to/bbylumi/help-seeking-advice-how-to-effectively-study-and-get-along-with-javascript-2m6b | javascript, discuss, help | **Hey fellow devs!**
I'm reaching out for some guidance on studying and working with JavaScript. As a beginner developer, I'm eager to improve my skills, but sometimes struggle to wrap my head around JavaScript's intricacies.
Specifically, I'd love some advice on:
- Effective study resources (tutorials, books, courses, etc.)
- Best practices for understanding and working with JavaScript fundamentals (syntax, DOM manipulation, etc.)
**Any advice, tips, or resources you can share would be greatly appreciated!**
Thanks in advance for your help!
_pls help a young dev_ | bbylumi |
1,870,334 | Full Stack Development: A Comprehensive Guide | Dive into our comprehensive guide on Full Stack Development, covering everything from the basics to... | 0 | 2024-05-30T11:38:11 | https://dev.to/trigventsol/full-stack-development-a-comprehensive-guide-2a2k | full, stack, development | Dive into our comprehensive guide on **[Full Stack Development](https://trigvent.com/how-to-choose-the-right-full-stack-development-partner/)**, covering everything from the basics to advanced concepts. This blog walks you through the essential skills, languages, and tools you need to become a proficient full stack developer. Gain insights into front-end and back-end development, database management, and the importance of DevOps practices in full stack development. | trigventsol |
1,870,332 | Stay Alert ⚠ with JavaScript: Using the Page Visibility API🚀 | What's the Page Visibility API? The Page Visibility API is a web API that allows... | 0 | 2024-05-30T11:30:54 | https://dev.to/dharamgfx/stay-alert-with-javascript-using-the-page-visibility-api-fmo | webdev, javascript, api, beginners | ### What's the Page Visibility API?
The Page Visibility API is a web API that allows developers to determine the visibility state of a webpage. This can be particularly useful for optimizing performance and improving user experience by controlling activities based on whether the page is in the foreground or background.
1. **Visibility States**:
- **visible**: The page content is at least partially visible.
- **hidden**: The page content is not visible to the user (e.g., minimized or another tab is active).
2. **Basic Usage**:
- Access the API through `document.visibilityState` and listen for `visibilitychange` events.
- Example:
```javascript
if (document.visibilityState === 'hidden') {
console.log('Page is hidden');
} else {
console.log('Page is visible');
}
```
### How to Check Page Visibility Changes
Monitoring page visibility changes allows you to execute specific code when the visibility state changes.
1. **Event Listener Setup**:
- Add an event listener for the `visibilitychange` event.
```javascript
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
console.log('User switched to another tab');
} else {
console.log('User returned to the tab');
}
});
```
2. **Handling Visibility Changes**:
- Example: Pause a video when the page is hidden and resume when visible.
```javascript
const video = document.querySelector('video');
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
video.pause();
} else {
video.play();
}
});
```
### Why Page Visibility is Useful
Utilizing the Page Visibility API can significantly enhance the performance and user experience of your web applications.
1. **Performance Optimization**:
- Pause or throttle resource-intensive tasks when the page is not visible.
```javascript
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
stopHeavyComputations();
} else {
startHeavyComputations();
}
});
```
2. **User Experience Improvements**:
- Example: Pause animations or videos to save battery and CPU usage.
```javascript
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
pauseAnimations();
} else {
resumeAnimations();
}
});
```
3. **Background Tasks**:
- Manage background data syncing or notifications more efficiently.
```javascript
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
startDataSync();
} else {
stopDataSync();
}
});
```
### Patterns to Avoid with Page Visibility Checks
While the Page Visibility API is powerful, there are certain practices to avoid to ensure optimal performance and user experience.
1. **Avoid Excessive Polling**:
- Do not use the API to constantly poll for visibility state. Use event listeners instead.
```javascript
// Bad practice:
setInterval(() => {
if (document.visibilityState === 'hidden') {
console.log('Page is hidden');
}
}, 1000);
```
2. **Avoid Ignoring User Intent**:
- Ensure that actions taken based on visibility changes align with user expectations.
```javascript
// Avoid forcing actions that might disrupt user experience
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
muteAudio();
} else {
unmuteAudio();
}
});
```
3. **Avoid Heavy Operations on Visibility Change**:
- Do not perform heavy operations in response to visibility changes as it can lead to poor performance.
```javascript
document.addEventListener('visibilitychange', () => {
if (document.visibilityState === 'hidden') {
// Avoid heavy computations here
}
});
```
### Summary
The Page Visibility API is a versatile tool for managing page activity based on visibility state. By understanding how to check for visibility changes and leveraging this API, you can optimize performance and enhance user experience. Remember to use the API responsibly, avoiding patterns that could negatively impact performance or user expectations. | dharamgfx |
1,870,330 | Join Our Premier Graphic Designing Course in Rohini Today | In today's digital age, graphic design is a dynamic and indispensable field that shapes the visual... | 0 | 2024-05-30T11:30:04 | https://dev.to/babita_kumari_2b60a23f4a9/join-our-premier-graphic-designing-course-in-rohini-today-n9p |
In today's digital age, graphic design is a dynamic and indispensable field that shapes the visual aspects of our world. From compelling advertisements to engaging social media posts, the work of graphic designers is all around us. For those aspiring to make a mark in this creative industry, our premier Graphic Designing Course in Rohini offers an unparalleled opportunity to gain the skills and knowledge needed to succeed. Join us today and embark on a journey that will transform your creative passion into a rewarding career.
The Role of Graphic Design in Modern Society
Graphic design is the art of visual communication. It involves creating visual content to convey messages, evoke emotions, and engage audiences. [Graphic Designing Course in Rohini ](https://dssd.in/graphic_designing.html)use a combination of typography, imagery, color, and layout techniques to produce visually appealing and effective designs. Their work spans various media, including print, digital, and multimedia, impacting industries such as advertising, marketing, web development, and publishing.
In an era where visual content is king, the role of graphic designers has become crucial. They help brands establish their identity, communicate their values, and connect with their target audiences. From designing logos and brochures to creating websites and social media graphics, graphic designers play a vital role in the success of businesses and organizations.
The Importance of Professional Training in Graphic Design
While creativity and artistic talent are essential, professional training is critical for mastering the technical skills and industry standards required in graphic design. A premier Graphic Designing Course in Rohini offers a comprehensive education that covers both the artistic and technical aspects of the field. Here are some key benefits of professional training:
1.Foundational Knowledge: A solid understanding of design principles, color theory, typography, and composition is fundamental to creating effective designs.
2.Software Proficiency: Mastery of industry-standard software such as Adobe Photoshop, Illustrator, and InDesign is crucial for executing professional-quality work.
3. Practical Experience: Hands-on projects and assignments allow students to apply their theoretical knowledge in real-world scenarios, enhancing their problem-solving and creative skills.
4. Portfolio Development: Building a strong portfolio during the course is essential for showcasing one's skills to potential employers or clients.
5.Networking Opportunities: Interaction with industry professionals through guest lectures, workshops, and seminars provides valuable insights and networking opportunities.
Why Choose Rohini for Your Graphic Designing Course?
Rohini, a well-developed residential and commercial area in North West Delhi, offers numerous advantages for students pursuing graphic design:
1.Reputable Institutions: Rohini is home to several esteemed educational institutions that offer premier graphic designing courses. These institutions are equipped with modern facilities and experienced faculty, ensuring high-quality education.
2.Proximity to Creative Hubs: Being in Delhi, students in Rohini have access to various creative agencies, design studios, and industry events, providing ample opportunities for internships and networking.
3.Inspiring Environment: Rohini's vibrant cultural scene and community of creative professionals create an inspiring environment for budding designers.
4.Affordable Living: Compared to other parts of Delhi, Rohini offers relatively affordable living costs, making it an attractive option for students.
Features of Our Premier Graphic Designing Course in Rohini
When choosing a graphic designing course, it's important to look for key features that ensure a comprehensive and enriching learning experience. Our premier course in Rohini offers the following:
1.Comprehensive Curriculum: Our curriculum covers essential topics such as design theory, digital illustration, typography, branding, web design, and user experience (UX) design. We also include modules on emerging trends and technologies in the design industry.
2.Experienced Faculty: Our instructors are seasoned professionals with extensive industry experience. They bring practical insights and real-world knowledge to the classroom, enhancing the learning experience.
3. State-of-the-Art Facilities: We provide modern classrooms, well-equipped computer labs, and access to the latest design software and tools for hands-on learning.
4. Industry Exposure: We offer opportunities to interact with industry professionals through guest lectures, workshops, and seminars, providing valuable insights and networking opportunities.
5. Certification: Our recognized certification adds value to your resume and provides a competitive edge in the job market.
Curriculum Overview
Our premier Graphic Designing Course in Rohini typically covers the following topics:
1. Introduction to Graphic Design: Basics of design principles, elements of design, and the role of a graphic designer.
2. Typography: Study of different typefaces, font styles, and the effective use of typography in design.
3. Color Theory: Understanding color models, color harmony, and the psychological impact of colors in design.
4.Digital Illustration: Techniques for creating digital artwork using software like Adobe Illustrator.
5.Layout and Composition: Principles of arranging visual elements to create balanced and aesthetically pleasing designs.
6.Branding and Identity Design: Creating brand logos, business cards, brochures, and other branding materials.
7.Web Design: Fundamentals of web design, including wireframing, user interface (UI) design, and responsive design.
8.User Experience (UX) Design: Designing for optimal user experience, including user research, prototyping, and usability testing.
9.Motion Graphics: Introduction to animation and motion graphics using tools like Adobe After Effects.
10. **Portfolio Development:** Guidance on creating a professional portfolio that showcases a student’s best work.
Learning from Industry Experts
One of the standout features of our premier Graphic Designing Course in Rohini is the opportunity to learn from industry experts. Experienced professionals bring a wealth of knowledge, practical tips, and industry insights that are invaluable for students. Here’s how learning from industry experts enhances the educational experience:
1.Real-World Perspectives:** Industry experts share real-world experiences, case studies, and best practices, providing students with a practical understanding of the design industry.
2.Updated Knowledge:** Professionals stay updated with the latest trends, tools, and technologies, ensuring that students learn the most current and relevant skills.
3.Mentorship and Guidance:** Mentorship from seasoned designers helps students navigate their career paths, build strong portfolios, and prepare for job interviews.
4.Networking Opportunities:** Connections with industry professionals can lead to internships, freelance projects, and job opportunities.
Career Opportunities After Completing the Course
Upon completing our premier Graphic Designing Course in Rohini, graduates have a plethora of career opportunities in various sectors. Here are some potential career paths:
1.Graphic Designer: Create visual content for print and digital media, including advertisements, brochures, posters, and social media graphics.
2.Web Designer: Design and develop websites with a focus on aesthetics, usability, and user experience.
3.UX/UI Designer: Work on the user interface and user experience aspects of websites, apps, and digital products.
4.Brand Identity Designer:** Develop logos, branding materials, and visual identities for businesses and organizations.
5.Motion Graphic Designer: Create animations and motion graphics for videos, advertisements, and multimedia projects.
6.Illustrator: Produce digital illustrations for books, magazines, advertisements, and online content.
7. Freelance Designer:** Offer design services independently to clients across various industries.
8.Art Director: Oversee the visual aspects of creative projects, leading a team of designers and ensuring the overall aesthetic vision is achieved.
Enroll Now: Take the First Step Towards a Creative Career
Enrolling in our premier Graphic Designing Course in Rohini offers aspiring designers a unique opportunity to learn from industry experts, gain practical experience, and build a strong foundation for a successful career. With its comprehensive curriculum, experienced faculty, state-of-the-art facilities, and vibrant creative community, Rohini is the perfect place to embark on your journey in graphic design.
Whether you aspire to work for leading design studios, start your own creative agency, or freelance independently, the skills and knowledge gained from this course will equip you to thrive in the competitive world of graphic design. Don’t miss the chance to unlock your creative potential and pursue your passion—apply now for our premier Graphic Designing Course in Rohini and take the first step towards a fulfilling and rewarding career in design.
Conclusion: Your Future in Graphic Design Starts Here
The digital age has amplified the need for skilled graphic designers who can craft compelling visual narratives and enhance user experiences. By enrolling in our premier Graphic Designing Course in Rohini, you position yourself at the forefront of this exciting industry. This course not only equips you with the technical skills and creative prowess needed to excel but also provides the certification that validates your expertise and boosts your employability.
Seize this opportunity to learn from the best in the industry, develop a portfolio that showcases your unique talents, and build a network of professional connections that can propel your career forward. The future of graphic design is bright, and it begins with the decision to invest in your education and growth. Join our premier Graphic Designing Course in Rohini today and embark on a transformative journey that will shape your career and unleash your creative potential. Apply now! | babita_kumari_2b60a23f4a9 | |
1,870,329 | Optimize Efficiency: The Top 10 Software Development Tools for 2024 | In the continuously progressing realm of software development, making an intelligent choice of the... | 0 | 2024-05-30T11:28:59 | https://dev.to/allenz_1011/optimize-efficiency-the-top-10-software-development-tools-for-2024-52e1 | developer, tools, ai, productivity | In the continuously progressing realm of software development, making an intelligent choice of the right tool can significantly determine the success or failure of a project. Selecting **software development tools** that provide superior issue-tracking capabilities, pioneered sprint management, inherent automation, and also facilitate effortless collaboration are often seen as the industry's fine picks. The good news is, that the market today is flooded with an array of software development tools, each with its distinct features, that can cater to a diverse set of needs.
The real challenge, and often the most tedious task, is identifying the tool that seamlessly aligns with your team’s unique technological requirements and preferences. It's a matter of discerning among a multitude of tools to discover the ones that are most apt for your team's tech stack, without losing sight of the budget, ease of use, and the level to which the tools can be customized.
Toppling this hurdle, we bring to you today's comprehensive guide. It aims to ease the complexities of choosing the right development tools. This guide takes you on a detailed journey, introducing the key features, benefits, and any potential shortcomings of the most popular [**agile software development platforms**](https://www.leiga.com?utm_source=article&utm_medium=devto&utm_content=optimize-efficiency-the-top-10-software-development-tools-for-2024) that currently rule the marketplace. Brace yourselves for the elucidative journey to select the best development tool.
Let's begin.
## Software Development Tools Defined
Software development tools, also known as development tools or coding tools, are applications used by developers to create, debug, maintain, or otherwise support software and applications. They play a critical role in every stage of the software development lifecycle, from conceptualization and design to testing and deployment.
Here are some widely used examples in agile software development:
* **Version Control Systems (VCS):**\
Tools such as Git, Mercurial, and Subversion help to track and manage changes to a software project, allowing multiple team members to collaborate effectively.
* **Integrated Development Environments (IDEs):**\
IDEs, like Microsoft's Visual Studio, JetBrains' IntelliJ IDEA, and Eclipse, are tools or platforms that provide developers with functionalities like code editor, compiler, and debugger all in one software package.
* **Code Editors:**\
Sublime Text, Atom, and Visual Studio Code are examples of code editors, which are lighter than full-fledged IDEs but offer many helpful features for programming.
* **Continuous Integration/Continuous Deployment (CI/CD) Tools:**\
Tools like Jenkins, CircleCI, and TravisCI play a significant role in modern DevOps, automating the testing and deployment of software.
* **Testing Tools:**\
Tools like JUnit, Mockito, and Selenium can automate testing for your software, including unit tests, integration tests, and usability tests.
* **Database Tools:**\
PhpMyAdmin, Adminer, and Oracle SQL Developer help manage databases, allowing you to interact with your data more intuitively and visually.
* **Project Management Tools:**\
Tools like Jira, Trello, and Asana assist in planning, organizing, and managing software-building processes, aiding in successful and timely project outcomes.
* **Containerization Tools:**\
Docker and Kubernetes are used for creating, deploying, and managing containers which can ensure consistency across multiple development and production environments.
Each of these tools serves its unique purpose and assists in enhancing the efficiency and productivity of the software development process. Choose the ones most suitable for your project requirements and team needs.
## Best Software Development Tools
Rolling out the red carpet, let's dive into the detailed exploration of each software development tool. We've sifted through a plethora of options and handpicked 10 of the best software development tools that you should consider for your team. These thrilling tools promise to revolutionize the way your team develops software and manages projects. Each of them is stacked with features designed to streamline workflows, boost productivity, and bring your software development to the next level. So, let's delve into these tools and uncover how your team can leverage them in the optimization of your development processes. Get ready to arm your team with the top-notch tools. Stay tuned!
### Leiga
When it comes to software development tools, [**Leiga**](https://www.leiga.com?utm_source=article&utm_medium=devto&utm_content=optimize-efficiency-the-top-10-software-development-tools-for-2024) excels in two key areas: **Agile Development Workflows** and **Task automation**.
The Agile Development feature offers an optimized environment for software teams to collaborate efficiently on numerous components, encompassing project roadmaps, development sprints, and task backlogs. It greatly decreases the friction between project managers and developers by enabling updates through the developers' IDE itself. It also helps monitor and address bottlenecks before they happen with proactive notifications and an AI assistant that gives you LIVE risk reports on every project.
On the other hand, Leiga's Task Automation feature comes into play for managing those development sprints, automating unfinished tasks, and assigning task priorities. It not only reduces the time spent updating projects but also aids in focusing more on the work at hand.
Additionally, it helps you record the screen of bugs to show others: It instantly screen records a bug or example, and Leiga will transcribe your video to fill in the details. That's automation you can use.
Equipped with an AI-driven software design, Leiga is a revolutionary tool that significantly streamlines the project management process for agile developers and is a clear choice for those keen on automation.
**Key Features of Leiga:**
* Efficient Task Boards
* Easy integrations with JetBrains, VS Code, and Android Studio
* User-friendly interface with zero coding requirement
* Browser extensions for enhanced accessibility to developers
* The ability to set deadlines, points, and priorities to ensure transparency within teams
* Automated migration of unfinished tasks to the next workflow phase
* In-depth Burndown and Burnup charts to track your team's progress
* Customizable point system
* Intuitive forms to translate issue reports into actionable tasks and assign them to the right individuals
**Advantages of Leiga:**
* Automated workflow management prevents tasks from falling through the cracks
* Custom categories to easily navigate through the backlog of bug reports
* Multiple integrations for software development and customer feedback
* Extensive adaptability for Agile Dashboards and Workflow Widgets
* Diverse view options including Gantt and Kanban
* Agile templates to expedite the creation of product outlines, release logs, sprints, and bug trackers
* Impressive free plan with unlimited members
**Drawbacks of Leiga:**
* Customization options may seem intimidating for beginners
**Pricing for Leiga:**
* **Free Forever**
* **Standard**: $8 per month per user
* **Professional**: $20 per month per user
* **Enterprise**: Contact for pricing
### GitHub
GitHub ranks as a leading tool in the realm of software development. It's a cloud-centric platform enabling developers to share, critique code, and steer software projects effectively.
This platform gains its prominence from a vast community support network and an integration with Git's version control features. Moreover, it provides developers the choice between making their projects private or open for public access.
**Key Features of GitHub:**
* Streamlines the development process by eliminating repetitive tasks and errors
* Introduces the Command Palette for simplified automation, advanced searches, and execution of commands
* Offers specialized project management features for software development to aid in the coordination of code reviews
* Facilitates easy creation and maintenance of documentation for various programming endeavors
* Allows for the direct hosting of documents from the project repositories
**Advantages of GitHub:**
* Public code repositories are hosted at no extra charge
* Comes with automated issue detection and tracking
* Supports Markdown for documentation
* Provides a wealth of initial documentation for newcomers
**Drawbacks of GitHub:**
* The platform can be daunting for beginners due to its complexity
* The specificity of role assignment and permission levels could be improved
**Pricing for GitHub:**
* Free tier available for basic needs
* Team subscription available at $48 per user per year
* Enterprise option priced at $252 per user per year, catering to larger organizational requirements
### Azure
Azure is not just another software development tool; it's a platform well-regarded by developers for crafting, deploying, and overseeing web applications. Azure's broad support for a multitude of programming languages, frameworks, and operating systems places it at the forefront of cloud-based development environments. It is particularly noted for its capabilities in risk detection and mitigation, winning over software developers looking for reliability.
Azure shines as an ideal choice for teams that are committed to the principles of lean software development.
**Key Features of Azure:**
* Welcomes a vast array of programming languages essential for web app creation
* An expansive collection of SDKs accommodates favorite tools including Eclipse, VS Code, and Visual Studio
* Facilitates the construction, deployment, and management of applications directly within the Azure framework
* Azure's cache system provides expedited data access throughout the development process
* Robust integrations with Microsoft Business Intelligence tools
**Advantages of Azure:**
* Built on a reliable and recognized cloud platform
* Capable of scaling, ensuring security, and offering high availability
* Inclusion of SQL database accessibility as a standard feature
**Drawbacks of Azure:**
* Demands proficiency in management and upkeep, specifically for updates and server monitoring
* The pricing model can be complex to navigate
* The vast array of features may be daunting even for seasoned developers
**Pricing for Azure:**
* Azure adopts a complex pricing scheme, which necessitates getting a tailored quote directly from the Microsoft team for precise costings.
### Atom
Atom distinguishes itself as an integrated development tool and environment. Its versatile customization options and a wealth of third-party integrations appeal to developers, as does its support for nearly all sought-after development languages and frameworks.
**Key Features of Atom:**
* Facilitates simultaneous opening or exploration of various projects within one window
* Enables comparison of different files by partitioning the interface into adjustable panes
* Features an intelligent and adaptable autocomplete function
* Compatible with all mainstream operating systems
**Advantages of Atom:**
* A completely free and open-source text editor
* User-friendly interface that's easy to navigate
* Supports collaborative teamwork, allowing two users to work on the same section simultaneously
* Built-in functionality for Git
**Drawbacks of Atom:**
* Plugin management can be onerous
* More limited in features when placed against some other text editors
* Performance can lag, particularly when additional functionalities from plugins are utilized
**Pricing for Atom:**
* Atom is available at no charge as it is open source.
### Jira
At the heart of Jira lies a potent project management platform designed to embrace the principles of Agile methodology. Initially conceived as a solution for issue and bug tracking, it has evolved into a comprehensive tool for DevOps, enabling effective management of project backlogs, bug resolution, agile release updates, and much more.
**Key Features of Jira:**
* Management of requirements and test cases
* Seamless integration with CI/CD tools for streamlined workflows
* Insightful sprint completion reports and dynamic visualizations
* Intuitive drag-and-drop Kanban boards for effortless project status updates
* Capability for detailed commentary on tickets
* Dedicated scrum boards tailored for Agile teams
**Advantages of Jira:**
* Superior advanced reporting tools
* A modern, user-friendly interface
* An efficient ticket filtering system for swift issue identification
* Dependable customer service
* The option to incorporate subtasks into a project roadmap enhances planning precision
**Drawbacks of Jira:**
* The extensive range of customization options can make the initial setup challenging
* Restrictions on assigning more than two individuals per task/ticket can be limiting
* Pricing may be higher in comparison to other software development tools
**Pricing for Jira:**
* A complimentary edition is available for teams of up to 10 members. The following premium plans provide additional capabilities:
* Standard: $7.75 per user per month
* Premium: $15.25 per user per month
* Enterprise: Custom pricing is available upon request, billed annually
### SendBird
SendBird is crafted to empower developers to integrate chatting, video, and voice functionalities within their applications, allowing for a seamless user experience. SendBird positions itself as a necessary tool for software development groups, offering accessible native chat SDKs, APIs, and backend management of chat platforms.
**Key Features of SendBird:**
* Embedded chat APIs for offline messaging, read receipts, real-time translation, and analytics
* User Interface Toolkit with ready-to-use UI components
* Comprehensive APIs for voice and video functionalities
* A straightforward interface for live agents overseeing support tickets
**Advantages of SendBird:**
* The user interface is clean and intuitive
* Extensive documentation
* Refined search functionalities and message preview options
* Capable of exporting data and producing reports for insights
**Drawbacks of SendBird:**
* Occasionally, developers may encounter performance issues with the provided SDKs
* Customer support responsiveness can be improved
**Pricing for SendBird:**
* SendBird delivers a wholly gratis package that includes all premium features, along with two subscription-based models.
* Developer: Free of charge
* Starter 5K: Priced at $399 monthly
* Pro 5K: Available for $599 monthly
### Linx
Linx positions itself as a boon for organizations aiming to cut down on development time and expenses. It's a low-code platform that streamlines the creation and hosting of APIs, automation, and system integrations. Linx extends its convenience with both on-premises and cloud-hosted options tailored for software development teams.
**Key Features of Linx:**
* Robust product lifecycle management tools
* Efficient document sharing and management systems
* Alerts and notifications are set up automatically
* Collection of ready-to-use plugins that aid in mobile and web development
* Diverse script services and database utilities, spanning RabbitMQ, MSMQ, Cron, RESTful, and SOAP protocols
**Advantages of Linx:**
* An intuitive drag-and-drop interface boasting thousands of pre-configured functions
* Streamlines backend process automation
* Effortless deployment capabilities when utilized with Linx IDE and Linx Server
* Support for offline operations and functionality
**Drawbacks of Linx:**
* Configuration can present a challenge at times
* Pricing may be on the higher side in comparison to other tools listed
**Pricing for Linx:**
* Entry-level pricing starts with the Starter plan at $49 monthly
* Business 1 tier is available at $99 monthly
* Business 2 level offered at $199 monthly
* High-availability and On-prem tiers have their pricing provided upon request
### Cloud 9
Cloud 9 IDE is an Amazon creation that enhances the coding experience by allowing you to write, run, and debug your code from the convenience of your browser. This tool amalgamates a trifecta of coding necessities: a code editor, a terminal, and an embedded debugger, all found within its integrated development environment (IDE).
**Key Features of Cloud 9:**
* Support for a wide range of prominent programming languages
* Flexible transition between local and cloud-based execution of serverless applications
* Collaborative features that allow sharing, change tracking, and pair programming in real-time among development teams
* A built-in command line interface that comes with pre-authenticated
**Advantages of Cloud 9:**
* No need for a local IDE setup— a browser is sufficient
* Assists with code hinting, auto-completion, and step-through debugging, facilitating a more efficient coding process
* Seamless access to AWS services and integration
* An extensive selection of SDKs, libraries, and plugins dedicated to serverless architecture
**Drawbacks of Cloud 9:**
* The plethora of tools can be overwhelming for newcomers
* Some users might find the interface complex to navigate
* Limited compatibility with third-party add-ons
**Pricing for Cloud 9:**
* Cloud 9 does not incur additional charges. Fees are based solely on the storage and computational resources utilized for running and maintaining your code. For detailed pricing, it is recommended to reach out to Amazon for a bespoke quote.
### Crimson
Crimson has emerged as a specialized programming platform within the Red Lion ecosystem. It boasts a robust set of tools including drag-and-drop configuration and sophisticated data management instruments tailored for "G3, G3 Kadet, and Graphite® HMI operator panels, Graphite Edge, and Core Controllers" development. Designed to synergize seamlessly with the suite of Red Lion solutions, Crimson streamlines the development process for specialized hardware interfaces.
**Key Features of Crimson:**
* An extensive graphics library, totaling over 5000 visuals spread across more than 60 categories
* Unfettered access to an array of features from Red Lion
* A programming environment utilizing C-type syntax
* Multilingual support that broadens its usability across various regions
**Advantages of Crimson:**
* Comes with an integrated emulator for testing and preview purposes
* Facilitates straightforward integration with Red Lion's range of products
* Offered at no additional cost as it is bundled with most Red Lion hardware options
**Drawbacks of Crimson:**
* Documentation could be more comprehensive and accessible
* The user interface may present challenges for novices
**Pricing for Crimson:**
* Crimson is provided at no extra cost as an inclusion with Red Lion's suite of products.
### Bootstrap
Bootstrap stands as the go-to choice for developers who craft their projects using HTML, CSS, and JavaScript. It’s a premier responsive framework designed to expedite front-end development, enriched with extensibility and a slew of features that streamline the design process.
**Key Features of Bootstrap:**
* Pre-crafted code snippets for rapid development
* A comprehensive set of UI components
* Base styling presets for standard HTML elements
* Intuitive drag-and-drop capabilities for layout building
**Advantages of Bootstrap:**
* A suite of powerful JavaScript plugins for advanced interactivity
* A mobile-first design philosophy, ensuring seamless functionality on smartphones
* An array of ready-to-use components significantly reduces development time
* Strong community backing and a plethora of community-generated resources
* Access to an abundance of free plugins and design templates
**Drawbacks of Bootstrap:**
* A relatively scant number of third-party integrations
* Compatibility with only three programming ecosystems
* Options for customization can feel somewhat restricted
* The framework has a substantial footprint with no lighter version available for simpler projects
**Pricing for Bootstrap:**
* Bootstrap is available as a free download, making it a cost-effective option for developers worldwide.
| allenz_1011 |
1,870,328 | HMR not working in Vite on WSL2 | Vite does not detect file changes If you are running Vite with WSL2 If you're using Vite... | 0 | 2024-05-30T11:27:13 | https://dev.to/proparitoshsingh/hmr-not-working-in-vite-on-wsl2-5h2k | react, vite, wsl2, webdev | ## Vite does not detect file changes
If you are running Vite with WSL2
If you're using Vite with WSL2 (Windows Subsystem for Linux 2) and encountering issues with Hot Module Replacement (HMR) not working, you're not alone. This is a common problem due to the way WSL2 handles file system notifications. In this post, we'll discuss the issue and provide a solution to get HMR working smoothly.
## The Issue
Hot Module Replacement (HMR) is a feature that allows you to see changes in your application without a full reload. It's a crucial part of the modern development workflow, providing immediate feedback as you make changes to your code.
When running Vite on WSL2, you might notice that file changes are not being detected, and HMR is not functioning as expected. This happens because WSL2, despite its many advantages, has limitations with file system event propagation. The file system events generated by the Linux subsystem do not always propagate correctly to the Windows host, causing tools like Vite to miss file changes.
## The Solution
To work around this issue, we can configure Vite to use polling instead of relying on file system events. Polling involves the development server regularly checking for changes in the file system at specified intervals. While this method can be less efficient and might use more CPU, it ensures that changes are detected reliably in environments like WSL2.
### Step-by-Step Guide to Enable Polling
1. **Locate Your `vite.config.js`**:
Find your `vite.config.js` file in the root of your project directory.
2. **Modify the Configuration**:
Add the `server.watch` configuration with `usePolling: true`.
Here is an example of what your `vite.config.js` might look like:
```
// vite.config.js
import { defineConfig } from 'vite';
export default defineConfig({
server: {
watch: {
usePolling: true, // Enable polling for file changes
},
},
});
```
3. **Save and Restart**:
Save the `vite.config.js` file and restart your Vite development
server to apply the changes.
## Why Use Polling?
Polling forces Vite to check for file changes at regular intervals rather than waiting for the operating system's notifications. This method is particularly useful in environments where these notifications might not be reliable, such as WSL2.
- **Reliability**: Ensures changes are detected even if file system events are missed.
- **Cross-platform Development**: Ideal for virtualized or containerized setups where traditional file system events may not work correctly.
## Potential Downsides
While polling solves the HMR issue in WSL2, it comes with some trade-offs:
- **Increased CPU Usage**: Polling can be more resource-intensive as it involves continuous checks for file changes.
- **Performance Impact**: Might result in slightly slower performance compared to event-driven file change detection.
## Conclusion
By enabling polling in Vite, you can ensure that HMR works reliably even in WSL2. This small configuration change can significantly improve your development experience, allowing you to take full advantage of Vite's fast and efficient build process.
If you encounter any further issues or have additional tips, feel free to share them in the comments below!
## Connect with Me
Feel free to connect with me on social media:
- **LinkedIn**: [Paritosh Singh](https://linkedin.com/in/proparitoshsingh)
- **Twitter**: [@proparitosh1609](https://twitter.com/proparitosh1609)
- **GitHub**: [proparitoshsingh](https://github.com/proparitoshsingh)
Happy coding!
| proparitoshsingh |
1,870,327 | Master Local SEO Strategy for Multiple Locations with 360 Marketing Tool | Local search engine optimization (SEO) has become paramount for businesses with multiple locations.... | 0 | 2024-05-30T11:26:06 | https://dev.to/susana_lee_041e3c16735491/master-local-seo-strategy-for-multiple-locations-with-360-marketing-tool-1ec6 | Local search engine optimization (SEO) has become paramount for businesses with multiple locations. Whether you're a national chain or a regional franchise, having a robust local SEO strategy is crucial for attracting customers in each of your locations.
In this blog post, we'll delve into the key components of an effective local SEO strategy tailored for multiple locations, along with insights into utilizing [360 Marketing Tool](https://360marketingtool.com/) to maximize your online presence and drive traffic to your business.
What is Local SEO
Local SEO is the process of optimizing your online presence to attract more business from relevant local searches. It involves various techniques aimed at improving your visibility in local search results, such as Google Maps listings and localized keyword targeting.
For businesses with multiple locations, implementing a tailored local SEO strategy is essential to ensure each location receives maximum exposure and attracts potential customers in its vicinity.
Key Components of a Local SEO Strategy for Multiple Locations
Consistent Business Listings: Ensure that your business information, including name, address, and phone number (NAP), is consistent across all online directories, including Google My Business, Yelp, and industry-specific directories. Inconsistencies can confuse search engines and potential customers, leading to a drop in rankings.
Localized Content: Create unique and relevant content for each location, including location-specific landing pages, blog posts, and customer testimonials. Incorporate local keywords and phrases to improve your visibility in local search results.
Google My Business Optimization: Optimize your Google My Business (GMB) profiles for each location by providing accurate business information, uploading high-quality photos, and encouraging customers to leave reviews.
Regularly update your GMB listings with new offers, events, and business updates to keep them fresh and engaging.
Local Link Building: Build relationships with local businesses, organizations, and influencers to earn backlinks from reputable local websites. Participate in community events, sponsor local charities, and collaborate with other businesses to increase your online visibility and credibility.
Mobile Optimization: With the increasing use of mobile devices for local searches, ensure that your website is mobile-friendly and loads quickly on all devices. Optimize your website's layout, navigation, and content for a seamless mobile user experience.
Monitoring and Analytics: Monitor your local SEO performance using tools like Google Analytics and Google Search Console. Track key metrics such as website traffic, search rankings, and conversion rates to identify areas for improvement and measure the effectiveness of your local SEO efforts.
Utilizing 360 Marketing Tools for Enhanced Visibility
In addition to implementing a comprehensive local SEO strategy, businesses can leverage 360 Marketing Tools to further enhance their online visibility and reach. Our tools encompass a wide range of digital marketing tactics, including:
Social Media Integration: Engage with your audience on social media platforms like Facebook, Instagram, and Twitter to promote your locations, share updates, and interact with customers. Analyze their behavior and get a deeper insight into your customer using 360 Marketing Tool, Use targeted advertising to reach local audiences based on demographics, interests, and location.
Email Marketing: Build and nurture relationships with customers through personalized email campaigns. Use the 360 Marketing Tool to send targeted emails promoting special offers, events, and new location openings to drive traffic and increase sales.
Content Marketing: Create high-quality, informative content that resonates with your target audience and addresses their specific needs and interests. 360 Marketing Tool helps you in finding trading topics in your industry. Publish blog posts, articles, and videos optimized for local keywords to attract organic traffic and establish your authority in the industry.
By integrating [360 Marketing Tool](https://360marketingtool.com/) into your overall strategy, you can create a cohesive and impactful marketing campaign that effectively promotes your business across multiple locations and drives measurable results.
Conclusion
In conclusion, a well-executed local SEO strategy tailored for multiple locations is essential for businesses looking to attract customers in specific geographic areas. By implementing key components such as consistent business listings, localized content, and Google My Business optimization, businesses can improve their online visibility and attract more local customers. Additionally, leveraging 360 Marketing Tool such as social media marketing, email marketing, and content marketing can further enhance visibility and drive traffic to your business.
By combining these strategies, businesses can create a powerful marketing campaign that delivers tangible results and helps them stand out in today's competitive landscape. | susana_lee_041e3c16735491 | |
1,870,326 | Img filter developer kit | Hey, I made this pen, is a programming tool to create 100% CSS filter, by easy/good/fast way. | 0 | 2024-05-30T11:23:24 | https://dev.to/tidycoder/img-filter-developer-kit-1i4e | codepen, filter, kit, developer | Hey, I made this pen, is a programming tool to create 100% CSS filter, by easy/good/fast way.
{% codepen https://codepen.io/TidyCoder/pen/bGyBvZM %} | tidycoder |
1,870,325 | Locking Down Your APIs: Mastering Express Rate Limit and Slow Down.🐌 | Setting Up an Express App on Vultr Setting up an Express app on Vultr is straightforward... | 0 | 2024-05-30T11:22:51 | https://dev.to/dharamgfx/locking-down-your-apis-mastering-express-rate-limit-and-slow-down-2c7i | javascript, programming, express, vult |
### Setting Up an Express App on Vultr
Setting up an Express app on Vultr is straightforward and essential for deploying secure APIs. Here's how to get started:
1. **Create a Vultr Account**:
- Sign up for an account on [Vultr](https://www.vultr.com/).
2. **Deploy a Server**:
- Choose a server instance suitable for your app (Ubuntu is a popular choice).
- Select a plan based on your resource needs.
3. **Install Node.js and npm**:
- Connect to your server via SSH.
- Install Node.js and npm:
```bash
sudo apt update
sudo apt install nodejs npm
```
4. **Set Up Your Express App**:
- Create a new directory for your app:
```bash
mkdir my-express-app
cd my-express-app
```
- Initialize a new Node.js project:
```bash
npm init -y
```
- Install Express:
```bash
npm install express
```
- Create a basic `index.js`:
```javascript
const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;
app.get('/', (req, res) => {
res.send('Hello, Vultr!');
});
app.listen(PORT, () => {
console.log(`Server running on port ${PORT}`);
});
```
- Run your app:
```bash
node index.js
```
### Understanding Express Rate Limit Middleware
Express Rate Limit is a middleware that helps protect your API from being overwhelmed by too many requests.
1. **Installation**:
```bash
npm install express-rate-limit
```
2. **Basic Setup**:
```javascript
const rateLimit = require('express-rate-limit');
const limiter = rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 100 // Limit each IP to 100 requests per windowMs
});
app.use(limiter);
```
3. **Customizing**:
- **Message**: Customize the response message:
```javascript
const limiter = rateLimit({
windowMs: 15 * 60 * 1000,
max: 100,
message: 'Too many requests, please try again later.'
});
```
- **Handlers**: Add custom handlers for logging or other actions:
```javascript
const limiter = rateLimit({
windowMs: 15 * 60 * 1000,
max: 100,
handler: (req, res, next) => {
res.status(429).send('Too many requests, please try again later.');
}
});
```
### Understanding Express Slow Down Middleware
Express Slow Down is another middleware that slows down responses instead of blocking them outright, which can deter abuse.
1. **Installation**:
```bash
npm install express-slow-down
```
2. **Basic Setup**:
```javascript
const slowDown = require('express-slow-down');
const speedLimiter = slowDown({
windowMs: 15 * 60 * 1000, // 15 minutes
delayAfter: 100, // Allow 100 requests per 15 minutes, then...
delayMs: 500 // Begin adding 500ms of delay per request above 100
});
app.use(speedLimiter);
```
3. **Customizing**:
- **Delay After**: Adjust the delay threshold:
```javascript
const speedLimiter = slowDown({
windowMs: 15 * 60 * 1000,
delayAfter: 50, // Start slowing down after 50 requests
delayMs: 1000 // 1 second delay per request after threshold
});
```
- **Max Delay**: Set a maximum delay:
```javascript
const speedLimiter = slowDown({
windowMs: 15 * 60 * 1000,
delayAfter: 100,
delayMs: 500,
maxDelayMs: 5000 // Maximum delay of 5 seconds
});
```
### Practical Uses and Examples
Combining rate limiting and slowing down requests can provide robust protection for your API:
1. **Combining Middlewares**:
- **Sequential Usage**:
```javascript
app.use(limiter);
app.use(speedLimiter);
```
- **Example Endpoint**:
```javascript
app.get('/api', (req, res) => {
res.send('API response');
});
```
2. **Protecting Specific Routes**:
- Apply middleware to specific routes:
```javascript
app.use('/api/', limiter, speedLimiter);
```
3. **Error Handling**:
- Customize error responses for rate limiting:
```javascript
app.use((err, req, res, next) => {
if (err instanceof rateLimit.RateLimitError) {
return res.status(429).json({ error: 'Rate limit exceeded' });
}
next(err);
});
```
### Conclusion
Securing your APIs with Express Rate Limit and Slow Down is crucial for maintaining performance and preventing abuse. By setting up an Express app on Vultr and implementing these middlewares, you can significantly enhance the security and reliability of your API. Experiment with different configurations to find the balance that best suits your application's needs. | dharamgfx |
1,870,324 | Importance of events in tech industry | In today's fast-moving world of technology, events are like superchargers that help fuel progress,... | 0 | 2024-05-30T11:20:29 | https://dev.to/techstuff/importance-of-events-in-tech-industry-5flg | events, techindustry |
In today's fast-moving world of technology, events are like superchargers that help fuel progress, connect people, and shape the future. These gatherings, whether big conferences or small meetups, are more than just get-togethers. They're like giant idea exchanges that bring together all kinds of people—like tech experts, entrepreneurs, and curious minds—to share, learn, and build cool stuff together.
**Let's take a closer look at why these events are so important and how they make a big impact on the world of tech.**
**Learning and Sharing Knowledge:** Tech events are like big classrooms where everyone gets to learn something new. Whether you're a newbie or a tech whiz, there's always something interesting to discover. At these events, experts share their know-how about all kinds of cool tech stuff, like artificial intelligence, apps, and even robots. You can listen to talks, join discussions, and even try out hands-on activities to learn how things work.
**Meeting New Friends and Partners: **Ever heard the saying, "It's not what you know, but who you know"? Well, tech events are the perfect place to meet new friends and potential partners. You can chat with people who share your interests, exchange ideas, and maybe even find someone to work on a project with. Whether you're looking for a mentor, a collaborator, or just someone to geek out with, you'll find them at these events.
**Checking Out the Latest Tech:** One of the coolest things about tech events is getting to see all the new gadgets and gizmos before anyone else. Companies use these events to show off their latest inventions, like fancy smartphones, cool apps, and other high-tech goodies. You can get up close and personal with these new toys, ask questions, and even try them out for yourself.
**Finding Support and Resources:** If you're a tech startup or just starting out in the tech world, these events are like gold mines full of support and resources. You can meet investors who might want to help fund your big idea, connect with mentors who can offer guidance, and even find potential customers who might be interested in what you're building. It's like having a whole army of cheerleaders rooting for your success.
**Growing Your Skills and Career:** Whether you're a seasoned pro or just starting out, there's always room to grow in the world of tech. At these events, you can attend workshops, join training sessions, and even get one-on-one advice from experts. You can learn new skills, brush up on old ones, and maybe even discover a new career path you never thought of before.
**Building a Community and Making a Difference:** Tech events aren't just about business— they're also about building a community and making a positive impact. Whether it's supporting diversity in tech, advocating for important causes, or just making new friends, these events bring people together in meaningful ways. They're like giant hugs that remind us of we're all in this together.
In short, tech events are like big parties where everyone's invited to come together, learn, and have fun. Whether you're a tech enthusiast, an aspiring entrepreneur, or just someone who loves cool gadgets, there's something for everyone at these events. So next time you hear about a tech event happening near you, why not check it out? Who knows, you might just discover your next big idea—or your new best friend! | swati_sharma |
1,870,323 | Let's create an Opensource Headless E-learning using Symfony | Hello Everyone, let me just present myself... we have a long way together to build The Headless... | 0 | 2024-05-30T11:20:11 | https://dev.to/inaryo/les-create-an-opensource-headless-e-learning-using-symfony-2jbf | opensource, symfony, webdev, devlog | Hello Everyone, let me just present myself... we have a long way together to build _The Headless E-Learning in Symfony_ 🔥
## Who Are you ?
My name is Issiakhem Mohamed Ramzi, 22, a passionate full-stack software engineer, for being passionate i really am, I started computer science at 14 YO with Java and POO, what a mess...
Otherwise, I build websites, Web applications and I'm starting my path on the OpenSource World !!
## What are you doing here ?
I wanna contribute to the community, especially to the opensource community, improve my skills and of course my network, you know... Hahaha
## The Devlog Serie
Now let's talk business, during this series of _**Devlogs**_, I will share with you the process of building an opensource _project_, it's my first time doing it, I count on your help and contributions 😉
What you will find here:
- The Project's ambitions evolution
- The Critical thinking behind important decisions
- The Design and conceptual study
- The functionalities implementation
- The Obstacles and how we surpass them
- Some Feedback from the community
## The Project Story !
Finally after a lot of blabla, let's start introducing the _Project_, _SymLearn_ ( Still a beta name ), is The Headless Opensource E-Learning using Symfony, I recently has a freelance project for the same kind of application and said to myslef:
> Ramzi, is there any opensource project for my need ?
And after some research, I found that, there is solutions but not using Symfony or that are not how I want, that's too bad 😏
## The Project's Ambitions
> Sky is your limit
That's some good introduction to talk about the SymLearn ambition and functionalities, we aim to make the most _efficient, easy to use and deploy_ headless e-learning in Symfony !
In few clicks, you will be able to use a complete solution to manage your backend.
What we want is:
- **Extensibility:** Capability to add new features easily.
- **Usability:** Ease of use and user-friendly interface.
- **Modularity:** Different components and modules activated on demand.
- **Documentation:** Comprehensive and clear documentation for developers and users.
- **Flexibility:** Easy to customize and enhanced flexibility.
- **Security & Authentication:** A complete security system tailored to your needs
- **Continuous Integration/Continuous Deployment (CI/CD):** Automated processes for code integration and deployment.
- **Testing:** Rigorous and automated testing to ensure code quality.
## The project functionalities:
In this part, we'll take a look at the core functionalities that will be available on _SymLearn_ :
- **User Management:** A complete user management system ( authentication, authorization, profile, courses overview, rbac, progress... )
- **Course Management:** Manage the modules,courses,chapters and lessons structure.
- **Workspace and groups:** Create workspace with predefined groups and assign courses according to the group and the workspace.
- **Assesment and evaluation:** Create Quizzes,exams, automatic and manual grading.
- **Tracking & Reporting:** Track the completion, attendance and progression for students and courses, create completion certificates
- **Gamification:** Badge and achievements system, score systems with leaderboards.
## What's Next ?
All of this can not be done as a solo developer, that's when I need your help to make it real ( I was writing "WE" during the post but yeah, I'm still solo 😔
Feel free to comment or ask any questions you have in mind !
If you've read this far, I'm sure you're interested in the project. [Join our Discord server](https://discord.gg/eBqTKrYPPm) to stay in touch! 😁
| inaryo |
1,870,322 | Backpedaling in angular: Scenarios to avoid | New gen JavaScript based frameworks like angular have been created to overcome the shortcomings of... | 0 | 2024-05-30T11:18:06 | https://dev.to/tonyshaji/backpedaling-in-angular-scenarios-to-avoid-1o9g | angular, webdev, beginners, programming | New gen JavaScript based frameworks like angular have been created to overcome the shortcomings of JavaScript. Often developers who are new to these frameworks implements old JavaScript code, instead of using new features of Angular. Here are some avoidable scenarios.
1. Avoiding Observables to use Async awaits and promises.
Async await is a JavaScript feature for asynchronous operations. But angular comes with a better and more powerful library Rxjs. Async await cannot cancel the operation once it is executed while Rxjs can cancel it. Async await only supports a single emission for a call, But Rxjs can run for any number of times.
When you already have a better library like Rxjs, it makes no sense to use async await. Since Angular is based on JavaScript async await will surely run on Angular. But it doesn’t mean that You should be using it. Whatever async await can do, Rxjs can do better and even more.
2. Using reactive forms and template driven forms together
Some developers seems to use reactive forms and template driven forms together.
Reactive forms are guided by the principle of 'one-way' data binding, which involves managing the state of forms using an immutable approach. This means that changes to the form state are made in a way that prevents them from being directly modified after they are initially set. By following this approach, there is a clearer separation of concerns between the template, which defines the form structure, and the component logic, which handles form behavior and interactions. This separation enhances maintainability and readability of the codebase, making it easier to understand and maintain.
The `ngModel` directive will keep track of the value typed in by the user with each key pressed, and it will also keep track of the validity state of that particular form control only. NgModel adheres to ‘two-way’ binding.
While running this angular produces a warning in development mode
Actually reactive forms are a better and more feature rich version of template driven form
3. Creating common service for calling Api
Angular is built over typescript which is a strongly typed language. Which means there is stricter typing rules at compile time, which implies that errors and exceptions are more likely to happen during compilation. Most of these rules affect variable assignment, function return values, procedure arguments and function calling.
When common service is created for all Api calls the type is given as any in usual cases which discards the benefits of strong typing.
4. Not using angular cli to create new files
If you doesn’t use angular cli, there is higher chance that the naming convention is broken somewhere, making the code less readable.
5. Creating one single module for all shared components
Many developers add all shared component to a single module and calls it shared module. This in fact increase the load on the page and makes rendering slower. The components that are not required for the current page is loaded from the shared module. With standalone component this issue is almost solved. But in angular apps using old version this issue exists.
The best solution to fix this is even though all shared components are
in a shared folder, each component should have it’s on module. So only
one module needs to be imported for that particular component. Or to
make things much simpler update to newer versions.
**Conclusion**
When a framework provide you with new feature make utmost use of it, Instead of sticking to the old methods you are used to. The leaning process is beneficial for the developer. | tonyshaji |
1,870,321 | Social Media Marketing Mastery: Advanced Strategies and Cutting-Edge Techniques | Social media advertising is a constantly evolving problem that calls for entrepreneurs to live on the... | 0 | 2024-05-30T11:18:04 | https://dev.to/liong/social-media-marketing-mastery-advanced-strategies-and-cutting-edge-techniques-36ib | facebook, targeting, malaysia, brands | Social media advertising is a constantly evolving problem that calls for entrepreneurs to live on the lowering fringe of tendencies and technologies. As systems evolve and new ones emerge, agencies ought to adapt their strategies to correctly interact their target audience and benefit their advertising desires. This weblog delves deeper into advanced strategies and present day techniques to raise your social media advertising and marketing and advertising efforts.
**Advanced [Social Media Marketing ](https://ithubtechnologies.com/social-media-marketing-malaysia/?utm_source=dev.to%2F&utm_campaign=Socialmediamarketing&utm_id=Offpageseo+2024)Strategies**
**Data-Driven Marketing**
**Leveraging Analytics**
In the age of huge information, leveraging analytics is essential for optimizing your social media marketing efforts. Platforms like Facebook, Instagram, and Twitter offer sturdy analytics gear that offer insights into consumer conduct, engagement costs, and content material overall performance. By frequently analyzing those metrics, you could make knowledgeable choices approximately what content resonates maximum together with your audience, the satisfactory times to put up, and which structures are riding the maximum engagement and conversions.
**A/B Testing**
A/B trying out, or break up trying out, involves creating variations of a submit or ad and evaluating their overall performance to peer which one resonates higher along with your target market. This may be completed with various elements, along with headlines, pics, calls-to-action, and ad formats. Regular A/B trying out enables refine your content and ad strategies, ensuring that you are always enhancing and optimizing your social media campaigns.
**Advanced Targeting and Retargeting**
**Precision Targeting**
Social media systems provide advanced concentrated on alternatives that will let you attain unique segments of your audience based totally on demographics, hobbies, behaviors, and even lifestyles activities. Using these concentrated on options will let you supply especially applicable content material to the proper human beings, increasing the probabilities of engagement and conversion.
**Retargeting Campaigns**
Retargeting includes serving commercials to people who've previously interacted together with your brand, which incorporates journeying your website or engaging with your social media content material. Retargeting keeps your emblem top-of-mind and encourages those customers to return and whole a favored motion, along with making a buy or signing up for a guide. Tools like Facebook Pixel and LinkedIn Insight Tag are vital for putting in powerful retargeting campaigns.
**Utilizing User-Generated Content (UGC)**
**Encouraging UGC**
User-generated content material cloth (UGC) is any content fabric created by using using way of your intention marketplace that showcases your emblem, merchandise, or offerings. Encouraging UGC can extensively beautify your social media presence with the useful useful resource of providing actual and relatable content cloth. Host contests, create branded hash tags, and ask clients to proportion their reviews with your merchandise to generate UGC.
**Showcasing UGC**
Feature UGC on your social media profiles, internet site, and other marketing materials to build agree with and credibility. Highlighting actual clients the usage of and playing your products can serve as powerful social evidence and inspire others to have interaction along with your emblem.
**Influencer Marketing **
**Micro-Influencers**
While taking part with macro-influencers can yield marvelous outcomes, micro-influencers (people with smaller, highly engaged followings) can provide a more centered and cost-powerful technique. Micro-influencers often have niche audiences and can provide greater authentic endorsements. Partnering with several micro-influencers permit you to attain various segments of your goal marketplace.
**Long-Term Partnerships**
Building lengthy-term partnerships with influencers can create more significant and sustained engagement. Rather than one-off collaborations, take into account operating with influencers over several months or even years. Long-term partnerships permit influencers to come to be proper advocates for your logo, ensuing in greater genuine and impactful content material.
**Cutting-Edge Techniques in Social Media Marketing**
**Augmented Reality (AR) and Virtual Reality (VR)**
**AR Filters and Lenses**
Augmented truth (AR) filters and lenses have become increasingly more famous on systems like Instagram, Snapchat, and Facebook. Brands can create custom AR reviews that allow users to engage with their merchandise in specific approaches, inclusive of virtual attempt-ons for fashion and beauty products. AR filters and lenses now not handiest offer a a laugh and tasty consumer revel in but additionally beautify brand visibility and consciousness.
**VR Experiences**
Virtual reality (VR) gives immersive reviews which can shipping customers to distinct environments. While nonetheless an rising generation, VR has the ability to revolutionize social media advertising and marketing by using presenting virtual tours, product demonstrations, and interactive logo studies. Early adopters of VR in their advertising techniques can stand out and create memorable interactions with their target market.
Ephemeral Content and Live Streaming
**Stories**
Ephemeral content material, inclusive of Instagram Stories, Facebook Stories, and Snapchat Stories, creates a revel in of urgency and exclusivity. These short-lived posts are perfect for sharing in the back of-the-scenes content material, confined-time gives, and real-time updates. The brief nature of Stories encourages immediate engagement and can raise emblem visibility.
**Chatbots and AI-Powered Customer Service**
**Social Media Chatbots**
Chatbots powered through artificial intelligence (AI) can beautify customer support on social media systems. These chatbots can take care of common inquiries, offer instant responses, and guide customers via the acquisition method. Implementing chatbots on platforms like Facebook Messenger and Twitter can improve response instances and client delight.
**Personalized Interactions**
AI also can be used to deliver customized interactions primarily based on consumer facts. By studying beyond behavior and possibilities, AI-powered tools can propose merchandise, ship personalized messages, and tailor content to man or woman users. Personalization enhances the user enjoy and will increase the probability of engagement and conversion.
**Staying Ahead of Social Media Trends**
**Monitoring Industry Trends**
Staying beforehand of social media traits requires non-stop monitoring of industry news, platform updates, and competitor activities. Follow enterprise blogs, attend webinars, and participate in social media advertising communities to stay knowledgeable. Tools like Google Alerts and social listening equipment can help you track relevant traits and conversations.
**Experimenting and Adapting**
Social media advertising is dynamic, and what works today may not paintings the following day. Be inclined to experiment with new content formats, structures, and techniques. Regularly evaluation your overall performance metrics and be ready to pivot your method based totally on what you research. Flexibility and flexibility are key to staying relevant and effective in social media advertising.
**Investing in Professional Development**
Investing in professional improvement for yourself and your crew can keep your social media advertising talents sharp. Attend conferences, join in on line courses, and attain certifications in social media advertising. Continuous analyzing ensures that you live up to date at the extremely-cutting-edge exceptional practices and emerging technology.
**Conclusion**
Mastering social media advertising and marketing requires a combination of strategic planning, progressive execution, and a willingness to adapt to new trends and technology. By leveraging facts-pushed insights, appealing together to gather with your goal marketplace through real content cloth, and experimenting with current techniques like AR, VR, and AI, you can growth your social media marketing undertaking and gain your industrial company goals. The social media panorama maintains to comply, staying in advance of the curve is critical. With the right techniques and equipment, you may construct a robust and impactful social media presence that drives logo growth and customer loyalty.
| liong |
1,870,320 | Best Node.js Logger for Your App: errsole | Logging is a critical aspect of maintaining and debugging applications. In the Node.js ecosystem,... | 0 | 2024-05-30T11:17:46 | https://dev.to/saikumar2121/best-nodejs-logger-for-your-app-errsole-10b2 | javascript, webdev, node | Logging is a critical aspect of maintaining and debugging applications. In the Node.js ecosystem, several logging libraries have become popular due to their robust features and ease of use. In this blog, I'll introduce my logging library, errsole, and explain why it stands out as the best choice for your Node.js applications.
## [errsole](https://github.com/errsole/errsole.js?tab=readme-ov-file#custom-logging-functions[](url)): Node.js Logger with a Built-in Dashboard
[errsole](https://github.com/errsole/errsole.js?tab=readme-ov-file#custom-logging-functions) is an open-source logger for Node.js that offers a built-in web dashboard to view, filter, and search your app logs. Here are some key features of Errsole:
## Features
- Easy Setup: Simply insert the Errsole code snippet at the beginning of your app's main file.
- Automated Log Collection: Collects all app logs directly from the Node.js console automatically.
- Customized Logging: Provides multiple log levels and allows metadata inclusion with logs, plus custom alerts for specific log events.
- Centralized Logging: Consolidates logs from multiple servers into one centralized database, with support for various database systems.
- Interactive Web Dashboard: View, filter, and search logs easily.
- Secure Access Control: Built-in authentication ensures only authorized access.
- Error Notifications: Delivers notifications for app crashes and custom alerts via Email or Slack.
- Data Retention: Allows specifying the number of days to keep logs.
## Setup Options
errsole supports setup with multiple database systems, including SQLite, MongoDB, MySQL, PostgreSQL, MariaDB, and OracleDB. Access to the web dashboard can be configured for both local and remote environments.
## Example Setup with MongoDB
In this blog, I will show an example of how to set up and access the web dashboard to view logs in the UI using MongoDB. To get started, you need to install the necessary packages:
`npm install errsole errsole-mongodb`
here is the express app...
```
const express = require('express');
const errsole = require('errsole');
const ErrsoleMongoDB = require('errsole-mongodb');
// Insert the Errsole code snippet at the beginning of your app's main file
errsole.initialize({
storage: new ErrsoleMongoDB('mongodb://localhost:27017/', 'logs')
});
const app = express();
app.get('/', function (req, res) {
res.send('Hello World');
});
app.listen(3000);
```
## Web Dashboard Access
After completing the setup, you can access the Errsole Web Dashboard through the following methods:
Local Environment: Open your web browser and visit http://localhost:8001/.
## Dashboard looks like...
## Team Collaboration
You can invite your team to access the logs, making it easy to collaborate and troubleshoot issues together. For more details about Errsole, you can visit their GitHub repository: [Errsole GitHub Repo.](https://github.com/errsole/errsole.js/tree/master) | saikumar2121 |
1,870,315 | Craft Clear and Maintainable Code: Getting started with Clean Coding | We want you to imagine something... Let's say you just joined a company and you're assigned a... | 0 | 2024-05-30T11:16:36 | https://dev.to/infrasity-learning/craft-clear-and-maintainable-code-getting-started-with-clean-coding-30fj | cleancode, cleancoding, bestpractices, beginners | We want you to imagine something...
Let's say you just joined a company and you're assigned a project.
You're really excited about it, but when you start going through the codebase, you notice that there's a lot of spaghetti code; cluttered and unreadable.
The more time you spend reading it, the more confusion you have and the more you start doubting yourself and experiencing something called imposter syndrome.
This story is as **real** as the **sun** and the **wind** and is not the only scenario in real life.
The only way this doesn’t happen is to ensure the principles of Clean Code are practiced.
We at [Infrasity](infrasity.com) specialize in crafting tech content that informs and drives a ~20% increase in traffic and developer sign-ups. Our content, tailored for developers and infrastructure engineers, is strategically distributed across platforms like [Dev.to](dev.to), [Medium](medium.com), and [Stack Overflow](https://stackoverflow.com/), ensuring maximum reach. We deal in content & (Go-To-Marketing)GTM strategies for companies like infrastructure management, API, DevX, and Dev Tools. We’ve helped some of the world’s best infrastructure companies like [Scalr](https://scalr.com/), [Env0](https://env0.com/), [Terrateam](https://terrateam.io/), [Terramate](https://terramate.io/), [Devzero](https://devzero.io/), [Kubiya](https://kubiya.ai/), and [Firefly.ai](https://firefly.ai/), just to name a few, with tech content marketing.
In this article brought to you by [Infrasity](infrasity.com), you’ll learn what Clean Code is all about, how to assess if a code follows the clean code principles, which if not followed will hinder productivity, increase debugging time, the benefits of following clean code principles, how to clean your code, tools for assisting in writing clean code and how to make it a habit.
## Example (Bad Code)
In the following example for a mock club app, the user is asked to enter name, email, and age, and based on that, the code allows the user to enter if the age is greater than or equal to 18.
```js
const readline = require("node:readline");
// Global variables (not recommended)
var userName = "";
var userEmail = "";
var userAge = 0;
async function ask(q) {
return new Promise((resolve) => {
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.question(q, (i) => {
resolve(i);
rl.close();
});
});
}
async function doStuff() {
// Logic mixed with unrelated task (data collection)
userName = await ask("Enter your name:");
userEmail = await ask("Enter your email:");
// Logic mixed with unrelated task (greeting user)
if (userName) {
console.log("Hello, " + userName + "!");
} else {
console.log("Please enter your name.");
doStuff(); // Recursive call can lead to infinite loop
}
// Repetitive code (can be refactored)
userAge = parseInt(await ask("Enter your age:"));
if (isNaN(userAge)) {
console.log("Please enter a valid number for age.");
doStuff(); // Recursive call can lead to infinite loop
} else if (userAge < 18) {
console.log("You must be 18 or older to proceed.");
} else {
console.log("Welcome!");
}
}
doStuff();
```
As you can see, it’s harder to understand what’s going on, the variable names as well as the functional names are messed up. Not only that, one function named `doStuff` does multiple tasks (responsibilities that aren’t **closely related**) and that’s something that clutters the code and makes it **spaghetti**.
## Example (Clean Code)
By applying the lessons that you’ll learn from this blog post, you’ll be able to re-write the above code like this!
```js
const readline = require("node:readline");
// User data object (encapsulation)
const userData = {
name: "",
email: "",
age: 0,
};
async function ask(question) {
return new Promise((resolve) => {
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.question(question, (input) => {
resolve(input);
rl.close();
});
});
}
async function keepAsking(question) {
while (true) {
const answer = await ask(question);
if (answer) {
return answer;
}
}
}
async function collectUserData() {
// Separate function for data collection
userData.name = await keepAsking("Enter your name:");
userData.email = await keepAsking("Enter your email:");
}
function greetUser() {
// Logic focused on greeting
if (userData.name) {
console.log("Hello, " + userData.name + "!");
} else {
console.log("Please enter your name.");
}
}
async function validateAge() {
// Refactored validation with loop for clarity
while (true) {
userData.age = parseInt(await keepAsking("Enter your age:"));
if (!isNaN(userData.age)) {
break; // Exit loop on valid input
}
console.log("Please enter a valid number for age.");
}
if (userData.age < 18) {
console.log("You must be 18 or older to proceed.");
} else {
console.log("Welcome!");
}
}
async function main() {
await collectUserData();
greetUser();
await validateAge();
}
main();
```
As you can see how readable it has become compared to the previous iteration by splitting the function into smaller functions, following the S in SOLID principles and the tenets of clean code that you’ll learn which will help in developing the perspective it takes to go from writing ugly unmaintainable code to cleaner code.
## What is Clean Code?
Clean code is code that is easy to read, understand and maintain. It's a code written in a way that makes it easy for other developers to understand and work with.
Clean, well-formatted code with clear variable names, consistent indentation, and a logical flow makes it easier to read, debug, maintain, and collaborate on. Take the time to write clean code – You and your team will save a great deal of headaches in the long run!
As far as clean code principles are concerned, we at [Infrasity ](infrasity.com)keep in mind all the best practices of writing clean code, inculcating SOLID principles, using Linting tools, well formatted code, making sure that comments are excluded when committing the code, and only necessary comments make it to the commits. [Infrasity](infrasity.com) has made a lot of demo recipe libraries to assist [Devzero](devzero.io), one of our customers, in creating recipe libraries, which helped them in quick developer onboarding. The recipe libraries created were a combination of different tech stacks, like NodeJs, BunJS, React, and CockroachDB, so that the end users could directly use them as boilerplate code without writing the entire code from scratch. All the code written by our developers incorporated clean code principles making the codebase robust.
## Who needs to learn to write Clean Code?
- **New developers** who are joining a company, and are trying to understand the codebase.
- **Anyone who has to deal with code** that was not written by themselves.
- **Senior developers** who are trying to improve the codebase.
This group consists of people who want to improve the quality of their code regardless of whether they are working on a SQL file or a Python script.
Even though the principles of clean code are applicable to all programming languages, making them a valuable investment in your coding skills, we'll stick to showcasing the value of clean code in JavaScript for the sake of simplicity.
## Why Should you learn to write Clean Code?
_Source: devrant_
Even though the above story We asked you to imagine should be enough,
**Let’s take another example:**
Imagine your code as your kitchen. You love to cook, but lately, things feel messy. There's a faint odour (a code smell!), and it's getting harder to find things (your code is getting complex).
**Code smells** are warning signs that your code could be improved. They're not necessarily errors, but more like burnt toast - a sign something isn't quite right. Just like cleaning your kitchen makes cooking more enjoyable, clean code principles can help you write code that's easier to understand and maintain.
**Here's the analogy:**
**Duplicate Code:** It's like having multiple half-used spice jars littering your counter. Clean Code Principle: DRY (Don't Repeat Yourself) - Consolidate that code into reusable functions, like a spice rack!
**Long Method Names:** Imagine labels on your jars that are tiny novels. Clean Code Principle: **Meaningful Names** - Use clear and concise names that tell you exactly what the code does, like "Garlic Powder" or "Cayenne Pepper".
**Magic Numbers:** Random numbers sprinkled throughout your code are like mystery ingredients. Clean Code Principle: **Use Constants** - Give these numbers clear names, like "TEASPOON" or "BAKING_SODA_AMOUNT".
Clean code principles are like good kitchen habits.
They help you write code that's:
**Readable:** Easy for you and others to understand, like a well-organized recipe.
**Maintainable:** Easier to fix and update, like having everything in its place.
**Scalable:** Able to grow as your project grows, like having plenty of cabinet space for future ingredients.
## So here are some benefits of writing clean code:
**Get Things Done Faster:** Code that is easier to understand and modify makes it faster to complete tasks.
**Work Better Together:** Clear code helps developers work together more effectively.
**Build For The Future:** Clean code ensures that your codebase is easy to maintain and grow over time.
## The Hidden Cost of Messy Code
### Traditional Approach: A Recipe for Headaches
Messed code is filled with unclear variable names, a lack of indentation, and spaghetti logic. This makes it difficult to read and debug.
Messy code examples might look something like these:
### Unclear variable names
Unclear names make the code cryptic. You (or someone else reading it) might spend minutes guessing what the variable in question represents.
**Example:**
```js
// Unclear variable names
let thingy = 10;
if (thingy > 5) {
let result = thingy * 2;
console.log(result);
}
```
**Challenge**: What does `thingy `represent? What's the purpose of this code?
### Inconsistent indentation
Indentation visually represents code blocks. Inconsistent or missing indentation makes it hard to see the flow of logic.
**Example**:
```js
// Inconsistent indentation
let age = 30;
if (age > 21)
// Missing indentation here
console.log("You can buy alcohol");
else {
console.log("No alcohol for you!");
}
```
**Challenge:** How many lines of code are actually part of the if statement?
### Spaghetti Logic
```js
// Spaghetti Logic
let score = 75;
if (score >= 90) {
console.log("Excellent!");
} else if (score < 70) {
console.log("Needs improvement");
} else {
if (score >= 80) {
console.log("Good job!");
} else {
console.log("Try harder next time!");
}
}
```
**Challenge:** Can you rewrite this code with a simpler logic flow?
## The Domino Effect of Code Confusion
- Each of these issues can have a domino effect:
- Unclear code takes **longer to understand**, making it **harder to pinpoint bugs**.
- Teammates **struggle to contribute** to a messy codebase, hindering development.
- Future modifications become a guessing game, potentially introducing _new bugs_.
## Embracing Clean Code: Principles for Beginners
_Source: freecodecamp_
Now let's introduce the fundamental principles of clean code, making them accessible for everyone.
**SOLID Principles:**
SOLID is an acronym for five key design principles that promote well-structured, maintainable, and flexible **object-oriented code**.
Here's a breakdown of each principle in the context of JavaScript:
1. **Single Responsibility Principle (SRP):**
**Concept:** Each class, module, or function should have a single, well-defined responsibility. This means it should perform a specific task and avoid having multiple unrelated functionalities crammed together.
**Benefits:**
- Increased code clarity: Easier to understand what a piece of code does.
- Reduced complexity: Changes in one area are less likely to impact others.
- Improved maintainability: Easier to modify or extend code without unintended side effects.
**Example:**
```js
// Bad example: A class with multiple responsibilities
class UserManager {
constructor(user) {
this.user = user;
}
saveUser() {
// Code to save user data
}
sendEmail() {
// Code to send email
}
logActivity() {
// Code to log user activity
}
}
// Good example: Separate classes with single responsibilities
class User {
constructor(user) {
this.user = user;
}
saveUser() {
// Code to save user data
}
}
class EmailService {
sendEmail() {
// Code to send email
}
}
class Logger {
logActivity() {
// Code to log user activity
}
}
```
Separating classes based on how closely the responsibilities are related makes it so much better to debug and understand.
2. **Open-Closed Principle (OCP):**
Functional programming encourages creating pure functions (without side effects) that can be easily composed with other functions. This allows for extension without modifying existing code.
**JavaScript Example (Bad):**
**Concept:**
Software entities (classes, modules) should be open for extension but closed for modification. This means you should be able to add new functionality without changing existing code.
**Benefits:**
Increased flexibility: Easier to adapt code to new requirements.
Reduced risk of regressions: Changes in one area are less likely to break other parts.
**Example:**
```js
// Bad example: A class that violates the OCP
class Circle {
constructor(radius) {
this.radius = radius;
}
getArea() {
return Math.PI * this.radius ** 2;
}
}
class Square {
constructor(side) {
this.side = side;
}
getArea() {
return this.side ** 2;
}
}
// Good example: Using polymorphism and interfaces
class Shape {
getArea() {
throw new Error("getArea method must be implemented");
}
}
class Circle extends Shape {
constructor(radius) {
super();
this.radius = radius;
}
getArea() {
return Math.PI * this.radius ** 2;
}
}
class Square extends Shape {
constructor(side) {
super();
this.side = side;
}
getArea() {
return this.side ** 2;
}
}
```
As we can see, the we made the subclass open to extension but closed for modification, making the code cleaner and easier to debug, also ensuring nothing that the functions that need to be present in the derived class needs to be implemented.
3. **Liskov Substitution Principle (LSP)**
**Concept:** Subtypes (child classes) should be substitutable for their base types (parent classes) without altering the program's correctness. In other words, if you expect a base-type object, you should be able to use a subtype object without encountering unexpected behaviour.
**Benefits:**
Improved code reliability: Ensures that child classes behave consistently with the base class contract.
Increased maintainability: Easier to refactor code by swapping subtypes without breaking functionality.
**Example:**
```js
class Shape {
constructor(width, height) {
this.width = width;
this.height = height;
}
getArea() {
return this.width * this.height;
}
}
class Square extends Shape {
constructor(length) {
super(length, length); // Square has same width and height
}
}
class AreaCalculator {
static calculateArea(shapes) {
let totalArea = 0;
for (const shape of shapes) {
totalArea += shape.getArea();
console.log(shape.getArea()); // implemented in both rectangle and square
}
return totalArea;
}
}
const rectangle = new Shape(5, 4);
const square = new Square(3);
const shapes = [rectangle, square];
const totalArea = AreaCalculator.calculateArea(shapes);
console.log(totalArea); // Output: 29 (incorrect, Square area is counted twice)
```
**Why it's wrong?**
In the Shape class, getArea() assumes width and height are independent.
However, Square enforces a square shape (width = height).
Setting the height of the rectangle through the square instance modifies
both width and height of the square, leading to an incorrect total area.
**Fixed Code**
```js
class Shape {
constructor(width, height) {
if (new.target === Shape) {
throw new Error("Shape is an abstract class and cannot be instantiated");
}
this.width = width;
this.height = height;
}
getArea() {
throw new Error("getArea() must be implemented in subclasses");
}
}
class Rectangle extends Shape {
constructor(width, height) {
super(width, height);
}
getArea() {
return this.width * this.height;
}
}
class Square extends Shape {
constructor(length) {
super(length, length);
}
getArea() {
return this.width * this.height; // Can directly use width and height here
}
}
class AreaCalculator {
static calculateArea(shapes) {
let totalArea = 0;
for (const shape of shapes) {
if (typeof shape.getArea === "function") {
totalArea += shape.getArea();
} else {
throw new Error("Object does not have a getArea() method");
}
}
return totalArea;
}
}
// Usage (fixed)
const rectangle = new Rectangle(5, 4);
const square = new Square(3);
const shapes = [rectangle, square];
const totalArea = AreaCalculator.calculateArea(shapes);
console.log(totalArea); // Output: 17 (correct)
```
**Improvements:**
**Abstract** `Shape` **class:** We make Shape an abstract class using `new.target === Shape` to prevent direct instantiation. Subclasses like `Rectangle` and `Square` are the ones that can be created.
Enforced getArea: The base Shape class throws an error if getArea is not implemented in subclasses, ensuring all shapes have a way to calculate area.
**Type check in** `AreaCalculator`: We check for the existence of a `getArea` function using `typeof`. This allows for more flexibility with different shape implementations.
**This revised code exemplifies LSP better by:**
- Defining a clear contract (`getArea`) that subclasses must implement.
- Enforcing consistency in area calculation behaviour.
- Making the code more robust to potential future changes in shape types.
4. **Interface Segregation Principle (ISP)**
**Concept**: Clients (code that uses a class) should not be forced to depend on methods they don't use. Break down large interfaces into smaller, more specific ones. This promotes loose coupling between classes.
**Benefits**:
Improved flexibility: Clients can only depend on the functionality they need.
**Reduced complexity**: Smaller interfaces are easier to understand and implement.
**Example**:
```js
// This example demonstrates the Liskov Substitution Principle (LSP).
// The Parrot class is a subclass of Bird, and it can be used as a
// substitute for Bird objects without affecting the correctness of the program.
class Bird {
constructor(name) {
this.name = name;
}
// The Bird class provides a basic implementation of the fly() method.
fly() {
console.log(`${this.name} is flying.`);
}
}
class Parrot extends Bird {
constructor(name, color) {
super(name);
this.color = color;
}
// The Parrot class provides a more specific implementation of the fly() method.
fly() {
console.log(`${this.name} the ${this.color} parrot is flying.`);
}
}
const parrot = new Parrot("Sunny", "blue");
const bird = new Bird("Sunny", "blue");
parrot.fly();
bird.fly();
```
A **Parrot** object (subclass) can be used in place of a **Bird** object (superclass) without causing any errors or unexpected behaviour.
The **fly** method still fulfils the core functionality of a bird flying, but the **Parrot** class adds more specific details.
5. **Dependency Inversion Principle (DIP)**
**Concept:** High-level modules (classes that depend on others) should not depend on low-level modules (classes that are implemented). Both should depend on abstractions (interfaces or abstract classes). This promotes loose coupling and easier testing.
**Benefits:**
- **Improved testability**: Easier to mock (create a fake implementation of) low-level modules for unit testing.
- **Increased flexibility**: Easier to swap out implementations of low-level modules without affecting high-level modules.
**Example:**
```js
// Bad example: A class that depends on a low-level module
class FileWriter {
constructor() {
this.reader = new FileReader();
}
writeToFile() {
this.reader.readFile("example.txt");
}
}
```
**Explanation of the Violation:**
`FileWriter` class:
The constructor directly creates a new instance of `FileReader`. This tightly couples `FileWriter` to the specific implementation of `FileReader`.
If you ever need to use a different file reading mechanism (e.g., reading from a database or network), you'd have to modify the `FileWriter` class to use the new functionality.
Problems with this approach:
**Inflexible:** The code is limited to using `FileReader`. Switching to a different reading method requires code changes in FileWriter.
**Testability Issues:** Mocking or stubbing FileReader for unit tests becomes difficult because it's directly instantiated within FileWriter.
```js
// Good example: A class that depends on an interface
class FileWriter {
constructor(reader) {
this.reader = reader;
}
writeToFile() {
this.reader.readFile("example.txt");
}
}
const fileReader = new FileReader();
const fileWriter = new FileWriter(fileReader);
```
**Dependency Inversion in Action:**
1. No direct `FileReader `usage: The `FileWriter `class doesn't create a new `FileReader `instance itself. Instead, it takes a reader object as a constructor argument.
2. Abstraction through Interface: We can assume there's an implicit interface (or potentially an abstract class) that defines the readFile method. This interface represents the abstraction for file reading functionality.
3. **Dependency Injection:** By accepting a reader object in the constructor, `FileWriter` injects its dependency for file reading. This dependency can be any object that fulfils the `readFile `method's contract.
4. Benefits of this approach:
5. **Flexibility:** You can use different implementations of the file reading interface with `FileWriter`. For instance, you could inject a `DatabaseReader` for reading from a database instead of `FileReader`.
6. **Loose Coupling:** `FileWriter `doesn't rely on a specific `FileReader` implementation. It depends on the ability to read files, which makes the code more adaptable.
7. **Improved Testability:** It's easier to write unit tests for FileWriter because you can mock or stub the reader dependency to isolate the writing logic.
**Benefits of this approach:**
- **Flexibility:** You can use different implementations of the file reading interface with FileWriter. For instance, you could inject a DatabaseReader for reading from a database instead of FileReader.
- **Loose Coupling:** FileWriter doesn't rely on a specific FileReader implementation. It depends on the ability to read files, which makes the code more adaptable.
- **Improved Testability:** It's easier to write unit tests for FileWriter because you can mock or stub the reader dependency to isolate the writing logic.
**Additional Notes:**
- In JavaScript, interfaces are not explicitly declared like in some other languages. However, the concept of interfaces can still be applied through functions or abstract classes that define the expected behaviour.
- The above code snippet showcases the constructor injection pattern, which is a common way to implement dependency injection.
**Meaningful Names:**
Imagine a variable named x1 or a function named `doStuff`. What do they do? Instead, use descriptive names that reflect their purpose.
- For a variable storing a user's age, use userAge.
- For a function calculating the area of a circle, use `calculateCircleArea`.
- Descriptive names make the code **self-documenting** and easier to understand.
**Before**:
```js
function processInfo(data1, data2) {
// Do something with data
}
let tempVar = calculateSomething();
```
**After**:
```js
function calculateUserDiscount(userData, productPrice) {
// Calculate discount based on user data and product price
}
const userAge = getUserInput("What is your age?");
```
**Formatting and Indentation:**
Think of proper formatting and indentation as adding spaces and line breaks to your code. It visually represents the code's structure, similar to paragraphs and bullet points in writing. Consistent indentation shows which lines of code belong to loops, if statements, and functions.
- Use spaces around arithmetic operators.
- Indent code blocks within functions and loops consistently (usually 2 or 4 spaces per level).
- Proper formatting makes the code flow clear and easier to follow.
**Before**
```js
let message = "Hello";console.log(message)
if(age > 21){message = "Welcome!"}else{message = "See you later!"}
```
**After**:
```js
let message = "Hello";
console.log(message);
if (age > 21) {
message = "Welcome!";
} else {
message = "See you later!";
}
```
**Single Responsibility**:
Imagine a function that calculates a discount, applies it to a price, and then formats the final price with a currency symbol.
**That's doing a lot!**
The Single Responsibility Principle suggests each function should have a single, well-defined task.
- Break down complex functions into smaller ones with specific purposes.
- Each function should ideally do one thing and do it well.
- This makes the code more modular, easier to test, and improves reusability.
**Before:**
```js
function calculateAndFormatPrice(price, discount) {
const discountedPrice = price * (1 - discount);
const formattedPrice = `$${discountedPrice.toFixed(2)}`;
return formattedPrice;
}
```
**After**
```js
function calculateDiscount(price, discount) {
return price * (1 - discount);
}
function formatPrice(price) {
return `$${price.toFixed(2)}`;
}
const discountedPrice = calculateDiscount(productPrice, discountRate);
const formattedPrice = formatPrice(discountedPrice);
```
- **Comments (Use Sparingly):**
Comments can help explain complex logic, but use them sparingly to avoid clutter and outdated information.
**Before:**
```js
// This function calculates the area of a circle (pi * r^2)
function calculateArea(radius) {
const area = Math.PI * radius * radius;
return area;
}
```
**After:**
```js
function calculateCircleArea(radius) {
const area = Math.PI * radius * radius;
return area;
}
```
**Minimize Hardcoding:**
Hardcoded information like numbers or strings directly written in the code can make it inflexible.
Instead, use variables or constants whenever possible.
- Store configuration values, formulas, or messages in variables or constants.
- This makes the code adaptable and easier to modify if needed.
**Before**:
```js
const discountRate = 0.1; // 10% discount
const message = "Welcome new user!";
if (userLevel === "VIP") {
discountRate = 0.2; // 20% discount for VIPs
}
console.log(message);
```
**After**:
```js
const DISCOUNT_RATES = {
standard: 0.1,
vip: 0.2,
};
const discountRate = userLevel === "VIP" ? DISCOUNT_RATES.vip : DISCOUNT_RATES.standard;
const welcomeMessage = "Welcome new user!";
console.log(welcomeMessage);
```
**DRY Principle: Eliminate Repetition**
It stands for **Don't Repeat Yourself**.
Imagine writing the same logic for calculating discounts in multiple places.
DRY reminds us to avoid this redundancy.
**Before:**
```js
const array = [1, 2, 3, 4, 5];
console.log(array[0] * array[0]);
console.log(array[1] * array[1]);
console.log(array[2] * array[2]);
console.log(array[3] * array[3]);
console.log(array[4] * array[4]);
```
**After:**
```js
const printArraySquare = (array) => {
for (let i = 0; i < array.length i++)
{
console.log(array[i] * array[i]);
}
}
const array = [1, 2, 3, 4, 5];
printArraySquare(array);
```
## Essential Tools for Clean Coding
Writing clean code isn't just about following principles – it's about having the right tools in your belt!
Here's a look at some beginner-friendly tools to help you write clean and maintainable code:
1. **Linters: Your Code's Grammar Police**
Imagine having a tool that scans your writing and points out typos, grammatical errors, and stylistic inconsistencies. Linters do the same for your code! They are automated tools that analyze your code for potential errors and style violations based on predefined rules.
**Examples**: ESLint (JavaScript), StyleCop (C#), Pylint (Python), SonarLint
2. **Code Formatters: Auto-magically Tidy Code**
Ever argued with a teammate about the number of spaces after an indent? Code formatters take the guesswork out of formatting. These tools automatically reformat your code according to a pre-defined style guide.
Examples: Prettier (various languages), Beautify (various languages), Black (Python)
3. **Version Control Systems (Git): Your Code Time Machine**
Version control systems (VCS) like Git act as a safety net for your code. They track all changes you make, allowing you to Revert to previous versions, See how your code has evolved over time, collaborate with others, and track their changes.
**Learning Resource:** https://git-scm.com/book/en/v2
4. **AI-powered Coding Assistants: Your Smart Code Buddy**
The world of AI is making its way into coding! AI-powered coding assistants can analyze your code, suggest improvements, recommend best practices, and even help you complete code snippets.
**Examples:** GitHub Copilot, Tabnine, Kite
5. **Code Review Tools: Your Modern Code Review Solution**
Reviewing code has never been easier cause of the tech that is available. These tools not only tell what flaws your code has but also assess the quality of your code by integrating it into your project. These tools also help in identifying [code smells](https://en.wikipedia.org/wiki/Code_smell).
**Examples:** [SonarQube](https://docs.sonarsource.com/sonarqube/latest/), Axolo, Crucible
## Building the Clean Code Habit
_Source: Medium_
Writing clean code isn't just about knowing the principles and tools – it's about developing good habits.
Here are some practical tips for beginners to cultivate the art of clean coding:
1. **Learn from the Masters:**
Immerse yourself in clean code examples! Look at open-source projects known for their clean code practices.
Many experienced developers share code reviews and tutorials online.
By studying how others write clean code, you'll pick up valuable techniques and best practices.
- Open-source projects like [ReactJS](https://github.com/facebook/react), [Django ](https://github.com/django/django)and [Telegram Desktop](https://github.com/telegramdesktop/tdesktop) on GitHub
- Code review blogs and articles (like this one) and platforms like [Code Review at Stack Exchange](https://codereview.stackexchange.com/)
- Online tutorials and courses on clean coding (mentioned in resources at the end of the article)
2. **Start Small, Win Big:**
_Don't try to rewrite your entire codebase overnight._
Focus on incorporating clean code principles in smaller, **manageable chunks**.
Start with a single function, refactor a specific section of code, or write a new piece with clean code practices in mind.
These steps will help you in building your **confidence** and gradually make clean coding a habit.
3. **Review and Refactor:**
Writing clean code is an **iterative process**.
Just like a good writer revises their work, make it a habit to regularly review your code.
Getting your code reviewed by someone can help you tremendously as a different perspective can often identify problems we cannot see cause of our own biases.
Look for opportunities to improve readability, eliminate redundancy, and simplify logic.
Refactoring involves restructuring your code without changing its functionality.
This can make your code cleaner and easier to maintain in the long run.
## FAQs
### How can We format our code for better readability?
Use spaces over tabs, be consistent in spacing between lines, and use code formatters like Prettier or Beautify.
### What are the popular tools that can help me write clean code?
Linters like ESLint, StyleCop, and Pylint check syntax and style. Code formatters like Prettier reformat code. Version control systems like Git track changes, and AI-powered coding assistants like GitHub Copilot, Tabnine, and Kite offer suggestions.
### What are some additional clean code practices beyond the basics?
Test your code, document it, and use design patterns. Testing catches bugs, documenting makes code easier to understand, and design patterns make code more robust.
### How does clean code differ between programming languages?
Best practices for clean code vary between languages. For example, Python uses descriptive variable names and consistent spacing, while JavaScript uses function hoisting and consistent indentation. C# uses descriptive variable names and spacing.
## Conclusion: Code with Confidence
Clean code is a skill worth cultivating.
It takes time to build this habit, but the benefits it brings are well worth the effort.
With this guide, you're now equipped with the knowledge you need to write code that is easier to read, debug, and maintain.
## Summary of Key Points
- Learn to write code that is easy to read, understand, and maintain.
- Use descriptive variable names, consistent indentation, and logical flow to make your code easier to understand.
- Use linters, code formatters, version control systems, and AI-powered coding assistants to help you write clean code.
- Write code with confidence, and watch your coding skills grow as a result.
**Note:** Spending too might time on writing Clean code can often distract developers from focusing on what truly matters in the end, that is to solve problems. Don’t spend too much time refactoring your code bases, do it after solving high-priority problems.
[Infrasity](infrasity.com) assists organizations with creating tech content for infrastructural organizations on Kubernetes, cloud cost optimization, DevOps, and engineering infrastructure platforms.
We specialize in crafting technical content and strategically distributing it on developer platforms to ensure our tailored content aligns with your target audience and their search intent.
For more such content, including Kickstarter guides, in-depth technical blogs, and the latest updates on cutting-edge technology in infrastructure, deployment, scalability, and more, follow [Infrasity](infrasity.com).
Contact us at [contact@infrasity.com](contact@infrasity.com) today to help us write content that works for you and your developers.
Cheers! 🥂
Written by [Gagan Deep Singh](https://www.linkedin.com/in/gagan-gulyani) for [Infrasity](infrasity.com).
| infrasity-learning |
1,870,319 | Pass the CPACC Practice Exam: Essential Study Tips | Advice from Successful Candidates Successful candidates often have practical tips and strategies to... | 0 | 2024-05-30T11:16:01 | https://dev.to/a2n44038/pass-the-cpacc-practice-exam-essential-study-tips-59il | Advice from Successful Candidates Successful candidates often have practical tips and strategies to help you prepare more effectively. Personal Stories and Testimonials Experiences of CPACC Holders Personal stories from CPACC holders can highlight the impact of the certification on their careers and personal growth. Impact on Career and Personal Growth Understanding how the [CPACC]( https://dumpsboss.com/iaap-exam/cpacc/) has benefited others can motivate and guide you on your own journey. Conclusion Summary of Key Points Passing the CPACC exam requires thorough preparation, effective study strategies, and the use of diverse resources. By following the tips and advice provided in this guide, you can increase your chances of success. Encouragement and Final Tips Remember to stay focused, manage your time effectively, and seek support from peers and mentors. Good luck on your journey to becoming a Certified Professional in Accessibility Core Competencies!
CPACC Practice Exam
CPACC Exam
CPACC Certification
Certified Professional in Accessibility Core Competencies
| a2n44038 | |
1,870,317 | Unleash the Power of a Bright, Healthy Smile! | At Pradham Dental, we believe a healthy smile is a confident smile. Our professional teeth whitening... | 0 | 2024-05-30T11:15:15 | https://dev.to/pradhamdental/unleash-the-power-of-a-bright-healthy-smile-4bg8 | dental, smile, invisalign, clinic | At Pradham Dental, we believe a healthy smile is a confident smile. Our professional teeth whitening can help you achieve a whiter, more radiant smile that not only looks great but boosts your confidence! We offer safe and effective treatments to remove stains and brighten your teeth
Ready to show off your pearly whites? Contact Pradham Dental today and learn more about our teeth whitening options! For more details please visit [https://pradhamdental.com/teeth-whitening-hyderabad](https://pradhamdental.com/teeth-whitening-hyderabad)
 | pradhamdental |
1,870,316 | Who Are Our Skill Training Partners for Vocational Education? | Our skill training partners for vocational education include leading institutions and industry... | 0 | 2024-05-30T11:14:40 | https://dev.to/amrita_singh_bfcc1e49fbb1/who-are-our-skill-training-partners-for-vocational-education-j7a | vocationaltrainingpartners, forskilltrainingpartner, glocaluniversityvocational, glocaluniversitycertificate | Our skill training partners for vocational education include leading institutions and industry experts who collaborate to deliver high-quality training programs. Among our esteemed partners is Glocal University Vocational, known for its comprehensive and industry-relevant courses. Through this partnership, participants can earn a Glocal University Certificate, recognized for its excellence and credibility. Our [vocational training partners](https://vocational.glocaluniversity.edu.in/partner-with-us
) are committed to providing practical skills and knowledge, ensuring that students are well-prepared for successful careers in various fields. By partnering with us, you gain access to top-tier vocational education and invaluable industry connections.
 | amrita_singh_bfcc1e49fbb1 |
1,870,313 | [AIAnsible]In the era of AIOps, learn to debug Ansible tasks with AIAnsbile in just 10 minutes. | AIAnsible: https://www.youtube.com/watch?v=kEFZLp8IEmQ Debugging Ansible with AI for... | 0 | 2024-05-30T11:11:02 | https://dev.to/a_jun_1d592a39703eed80f31/aiansiblein-the-era-of-aiops-learn-to-debug-ansible-tasks-with-aiansbile-in-just-10-minutes-4l96 | # AIAnsible:
https://www.youtube.com/watch?v=kEFZLp8IEmQ
Debugging Ansible with AI for automatic commenting, error analysis, and providing suggestions for improvement.
```
git clone https://github.com/sunnycloudy/aiansible.git
cd aiansible
pip install . #=> will generate dir: ~/.aiansible_plugin
```
## QA:
qq group: 937374915
## ai prompt example:
If you want to use English:
```
export AIANSIBLE_LANG=EN
```
### or use ":cn"and":en" to switch language:
### install and start using aiansible:
- (1) **download and install**
```
git clone https://github.com/sunnycloudy/aiansible.git
cd aiansible
pip install . #=> will generate dir: ~/.aiansible_plugin
```
- (2) **install dependents:**
```
pip install -r requirements.txt
```
- (3) **create a:debug.cfg**
```
[defaults]
callback_plugins = ~/.aiansible_plugin
callbacks_enabled = aiansible.py
```
- (4) **Configure AI parameters:**
If not set, the AI prompt feature will not be available, but it will not affect normal debugging.
**Use a configuration file (recommended)**
create config.yml: ~/.aiansible_plugin/config.yml
```
openai:
api_key: https://api.moonshot.cn/v1 #or any other compatible OpenAI API address
api_url: your_openai_api_url_here #or any other compatible OpenAI key
model: moonshot-v1-8k #or any other compatible OpenAI model name
```
**Or use environment variables to configure AI**
```
export OPENAI_API_URL=https://api.moonshot.cn/v1 #or any other compatible OpenAI API address
export OPENAI_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx #or any other compatible OpenAI key
export OPENAI_MODEL=moonshot-v1-8k #or any other compatible OpenAI model name
```
- (5) **Run:**
```
# Configure the plugin in debug.cfg
export ANSIBLE_CONFIG=./debug.cfg
ansible-playbook xxx_playbook.yml
```
---
# demo:
## debug kubespray:
```
# find
kubespray/ansible.cfg
```
### edit kubespray default ansible.cfg:
```
[ssh_connection]
pipelining=True
ansible_ssh_args = -o ControlMaster=auto -o ControlPersist=30m -o ConnectionAttempts=100 -o UserKnownHostsFile=/dev/null
#control_path = ~/.ssh/ansible-%%r@%%h:%%p
[defaults]
# https://github.com/ansible/ansible/issues/56930 (to ignore group names with - and .)
force_valid_group_names = ignore
host_key_checking=False
gathering = smart
fact_caching = jsonfile
fact_caching_connection = /tmp
fact_caching_timeout = 86400
stdout_callback = default
display_skipped_hosts = no
library = ./library
# callbacks_enabled = profile_tasks,ara_default #<= comment it (･ω･)ﾉ
callback_plugins = ~/.aiansible_plugin #<= new line (｡･ω･｡)ﾉ
callbacks_enabled = aiansible.py #<= new line ( ・ω・ )ノ
roles_path = roles:$VIRTUAL_ENV/usr/local/share/kubespray/roles:$VIRTUAL_ENV/usr/local/share/ansible/roles:/usr/share/kubespray/roles
deprecation_warnings=False
inventory_ignore_extensions = ~, .orig, .bak, .ini, .cfg, .retry, .pyc, .pyo, .creds, .gpg
[inventory]
ignore_patterns = artifacts, credentials
```
### run command:
If not set, the AI prompt feature will not be available, but it will not affect normal debugging.
**Configure AI parameters:**
**Use a configuration file (recommended)**
create config.yml: ~/.aiansible_plugin/config.yml
```
openai:
api_key: https://api.moonshot.cn/v1 #or any other compatible OpenAI API address
api_url: your_openai_api_url_here #or any other compatible OpenAI key
model: moonshot-v1-8k #or any other compatible OpenAI model name
```
**Or use environment variables to configure AI**
```
export OPENAI_API_URL=https://api.moonshot.cn/v1 #or any other compatible OpenAI API address
export OPENAI_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx #or any other compatible OpenAI key
export OPENAI_MODEL=moonshot-v1-8k #or any other compatible OpenAI model name
```
### edit mode:support emacs-mode or vim-mode, default is emacs-mode
```
export AIANSIBLE_EDITMODE=vi
#或
export AIANSIBLE_EDITMODE=emacs
```
## basic usage:
```
:cn Set the language to Chinese
:en Set the language to English
i Annotate the code of the currently executing task
ir Annotate the code of the currently executing task, analyze the results, and provide suggestions for improvement
ask Please answer questions based on the current Ansible task
n next Run the next task
m Do not stay at the same task again immediately
c continue Continue running until the next breakpoint
b Create a breakpoint
p View created breakpoints
d delete Delete a breakpoint
bt View which tasks have been run
code View the code of the currently running task
v Open the corresponding file with VSCode
a arg View all arguments, or a single argument (assuming the task has not been skipped)
? help View the usage instructions
exit Exit
```
### check the result of current ansible task:
```
Aiansible(CN) => result._result
{'msg': 'Check roles/kubespray-defaults/defaults/main.yml', '_ansible_verbose_always': True, '_ansible_no_log': False, 'changed': False}
``` | a_jun_1d592a39703eed80f31 | |
1,870,312 | Innovation in San Francisco: The Heartbeat of Technological Advancement | San Francisco, with its iconic Golden Gate Bridge, steep hills, and historic cable cars, is more than... | 0 | 2024-05-30T11:09:06 | https://dev.to/stevemax237/innovation-in-san-francisco-the-heartbeat-of-technological-advancement-5eoe | appdevelopment | San Francisco, with its iconic Golden Gate Bridge, steep hills, and historic cable cars, is more than just a picturesque city. It's a global hub of innovation and technology, where creativity and entrepreneurship thrive. The city's diverse population, prestigious educational institutions, and robust venture capital scene make it a hotspot for groundbreaking developments. At the heart of this dynamic landscape are the numerous app development companies that contribute significantly to San Francisco's reputation as a tech powerhouse.
## App Development Companies: Catalysts of Innovation
Among the numerous tech companies in San Francisco, [App Development Companies in San Francisco](https://mobileappdaily.com/directory/mobile-app-development-companies/us/san-francisco?utm_source=dev&utm_medium=hc&utm_campaign=mad) play a vital role in driving innovation. These companies are at the cutting edge of technology, constantly pushing the boundaries of what’s possible in the digital world. San Francisco hosts some of the world’s most renowned app development companies, including giants like Uber, Airbnb, and Twitter. These companies have revolutionized their respective industries through innovative app solutions that enhance user experience and create new business models.
In addition to these well-known names, the city is also home to many smaller app development firms that contribute to the vibrant tech ecosystem. These companies specialize in various aspects of app development, from mobile app design and development to backend infrastructure and cloud services. The competition among these firms drives them to continually innovate, resulting in high-quality apps that meet the evolving needs of users.
**Notable App Development Companies in San Francisco**
ArcTouch: Known for creating bespoke mobile apps for a range of industries, ArcTouch has worked with big names like Audi, 3M, and Yahoo, delivering customized solutions that align with their clients' strategic goals.
Y Media Labs: Focused on creating apps that provide a seamless user experience, Y Media Labs has developed apps for companies like PayPal, Apple, and Facebook, showcasing their expertise in handling complex projects.
Intellectsoft: Offering a broad range of services, including mobile app development, blockchain solutions, and IT consulting, Intellectsoft has a diverse portfolio that includes clients from various sectors, demonstrating their ability to deliver innovative solutions across different industries.
Appster: Known for its innovative approach, Appster has developed apps for both startups and established enterprises. They emphasize collaboration and creativity, ensuring that the apps they create stand out in the crowded market.
Fueled: Renowned for turning ideas into highly functional and visually appealing apps, Fueled has partnered with companies like Verizon, Crunchbase, and MGM Resorts, delivering top-notch digital products.
## The Silicon Valley Connection
San Francisco's close relationship with Silicon Valley, the world’s most famous technology corridor, has been crucial to its rise as an innovation hub. The flow of talent, ideas, and capital between the city and Silicon Valley creates a perfect environment for technological innovation. Companies based in San Francisco have easy access to some of the brightest minds in the industry, leading to collaborations and innovations with global impact.
## A Culture of Innovation
San Francisco has always been a place where unconventional ideas are welcomed and nurtured. This openness attracts a diverse population of creative thinkers, entrepreneurs, and technologists. The city's many co-working spaces, incubators, and accelerators provide the necessary infrastructure for startups to grow and succeed. Events like the annual TechCrunch Disrupt and Dreamforce conference further cement San Francisco’s status as a global innovation hub, offering platforms for startups to showcase their ideas and for investors to discover the next big thing.
## Educational Institutions and Talent Pool
San Francisco's innovation ecosystem is strengthened by its proximity to world-renowned educational institutions such as Stanford University, the University of California, Berkeley, and the University of San Francisco. These institutions produce a steady stream of highly skilled graduates ready to tackle the challenges of the tech industry. Additionally, many professors and researchers from these universities collaborate with local startups, providing cutting-edge research and development that fuels innovation.
## Venture Capital and Funding
The availability of venture capital is another critical component of San Francisco’s innovation landscape. The city is home to numerous venture capital firms constantly on the lookout for promising startups. This influx of capital allows entrepreneurs to bring their ideas to life and scale their businesses. The presence of these investors also means that startups in San Francisco have access to more than just funding; they can also tap into a wealth of experience and mentorship crucial to their success.
## The Future of Innovation in San Francisco
As technology continues to evolve rapidly, San Francisco remains at the epicenter of this transformation. The city's commitment to fostering a supportive environment for both startups and established tech companies ensures that it will continue to lead in innovation. Emerging technologies such as artificial intelligence, blockchain, and the Internet of Things are poised to drive the next wave of innovation, and San Francisco is well-positioned to lead these developments.
Moreover, the city’s focus on sustainability and social impact is shaping the future of innovation. Many tech companies in San Francisco are now prioritizing environmentally friendly practices and developing technologies that address global challenges such as climate change, healthcare, and education. This shift towards purpose-driven innovation highlights the city’s evolving role in creating a better future through technology.
## Conclusion
San Francisco’s status as a global hub of innovation is well-deserved. Its unique combination of a vibrant culture, access to top talent, abundant funding, and a spirit of collaboration has created an environment where technological advancements flourish. App development companies in the city play a crucial role in this ecosystem, driving forward the digital revolution with innovative solutions. As the city continues to evolve, it remains a beacon of technological progress and a testament to the power of innovation.
| stevemax237 |
1,870,311 | Unveiling the Layers of Internet Privacy: Understanding and Protecting Your Digital Footprint | In the connected world of today, protecting our privacy online has become essential to our daily... | 0 | 2024-05-30T11:06:53 | https://dev.to/catherinecortez/unveiling-the-layers-of-internet-privacy-understanding-and-protecting-your-digital-footprint-2c2c | In the connected world of today, protecting our privacy online has become essential to our daily existence. Because of the vast network of data we create, share, and utilize, there are legitimate concerns about how our personal information is tracked and used. The IP address, a unique identifier assigned to each internet-connected device, is something that is often overlooked in this discussion. Understanding the effects of[ IP location](https://www.iplocation.net/) monitoring can help us protect our privacy and utilize the internet more securely.
## What is an IP Address?
An IP (Internet Protocol) address is a numerical designation assigned to each device connected to a computer network and capable of Internet Protocol communication. It finds the host within the network and identifies the host or network interface are its two main functions. Without IP addresses, data packets cannot connect devices to the internet because they cannot be directed to the proper locations.
## The Role of IP Location
Numerous details about you, including where you live, can be found simply by looking up your IP address. This is due to the fact that IP addresses are allotted to internet service providers (ISPs) in different geographic areas in blocks. Your device receives an IP address from one of these blocks when you connect to the internet, and this address can be used to determine your approximate location.
Although this location data is not accurate enough to identify your actual address, it may frequently identify the city or area that you are using to access the internet. Although this data can be useful for a number of things, such as showing adverts or material that is relevant to the user's location, it also poses privacy issues.
## Privacy Implications of IP Tracking
When your location is tracked using your IP address, there are many privacy implications. Websites, advertisers, and even dishonest people can monitor your IP address in order to track your online activities, build behavioral profiles, and target you with personalized advertisements. IP tracking may be used to facilitate cyberattacks or unlawful espionage in more dire circumstances.
Governmental and law enforcement organizations can also use IP location data in their investigations. This can be helpful in stopping and investigating crimes, but it also leaves room for abuse and overreach, which sparks discussions about how to strike a balance between security and privacy.
## Protecting Your Digital Footprint
Considering the possible hazards linked to intellectual property tracking, safeguarding your digital footprint is imperative. The following are some actions you can take:
1. Employ a virtual private network or VPN:
By directing your internet traffic via a secure server located in a foreign country, a VPN hides your IP address. This adds an additional layer of protection by encrypting your data in addition to hiding your true IP address.
Turn on the privacy settings: Numerous online browsers and websites provide privacy settings that restrict data collecting and monitoring. To improve your privacy, check and tweak these settings frequently.
2. Use Tools for Anonymous Browsing:
Through the use of tools like the Tor browser, which distributes your communications among numerous relays, you can browse anonymously. Because of this, it is challenging for someone to link your IP address to your online activities.
3. Remain Up to Date:
Making smarter judgments regarding your online activities can be aided by knowing the fundamentals of internet privacy and remaining up to date on the newest privacy practices and tools.
## Conclusion
Knowing the function of IP addresses and the location information they contain is essential for maintaining our privacy in a time when our online activity is continuously tracked and analyzed. We may enjoy a more secure online experience and protect our digital footprints by implementing privacy-enhancing products and behaviors. Even if the internet is full with benefits and opportunities, we must always be mindful of our privacy in order to keep our personal data safe.
| catherinecortez | |
1,870,309 | How to create and deploy a Windows 11 Virtual Machine on Azure: A Step-by-Step Guide | Creating and connecting a virtual machine (VM) on Azure is a straightforward process when broken down... | 0 | 2024-05-30T11:06:33 | https://dev.to/jessemomoh/how-to-create-and-connect-a-virtual-machine-on-azure-a-step-by-step-guide-25b7 | azure, cloud, serverless, dataops |
Creating and connecting a virtual machine (VM) on Azure is a straightforward process when broken down into manageable steps. This comprehensive guide will take you through each step, ensuring you have all the information you need to get your VM up and running.
**Step 1: Create a Free Trial Account on Azure**
Begin by creating a free trial account on Azure. This account provides you with a subscription and $200 in Azure credits, which is more than enough to complete this tutorial and explore additional Azure services. Visit the Azure free trial page and follow the prompts to set up your account.
**Step 2: Log in to Your Azure Account**
Once your account is set up, navigate to the Azure portal at [portal.azure.com](url). Enter your login credentials, which include your username and password, to access the portal's dashboard. The Azure portal is the central hub where you can manage all your Azure resources and services.
**Step 3: Access the Virtual Machines Section**
In the Azure portal, locate the "Search resources, services, and docs" field at the top of the page. Type "virtual machines" into the search bar.
You can also find the Virtual Machines option by clicking on the "hamburger" icon (three horizontal lines) in the top-left corner and scrolling through the menu, or by clicking on the "Create a resource" button and typing "virtual machine."
**Step 4: Select the Virtual Machine Option**
From the list of search results, click on the "Virtual Machines" option. This will take you to the Virtual Machines dashboard, where you can see any existing VMs and start the process of creating a new one.
**Step 5: Click the “Create” Button**
To begin the creation process, click the “Create” button. There are two "Create" buttons available; choose the one labeled "Create a virtual machine hosted by Azure." This will open a new form where you can enter the details for your new VM.
**Step 6: Enter Project Details**
In the project details section, you will need to select your subscription and create a resource group.
A resource group is a logical container that holds related resources for an Azure solution. Click on the "Create new" button to set up a new resource group, and give it a meaningful name that will help you identify it later.
**Step 7: Configure Virtual Machine Settings**
Next, you will need to provide details about the VM you are creating. This includes:
**Name**: Give your VM a unique and descriptive name.
**Region**: Choose the Azure region closest to your location to ensure optimal performance.
**Image**: Select the operating system for your VM. Common options include Ubuntu Server 20.04 LTS and Windows Server 2019 Datacenter.
**Size**: Choose the size of your VM based on your needs. The size determines the VM's CPU, memory, and storage capacity.
**Step 8: Create an Administrator Account**
Set up an administrator account for your VM. You will need to choose an authentication type (password or SSH key). For simplicity, select "Password." Enter a username, such as "AzureUser," and a strong password. This account will be used to access and manage your VM.
**Step 9: Configure Inbound Port Rules**
To allow remote access to your VM, configure the inbound port rules. If you are creating a Linux VM, select SSH (port 22). For a Windows VM, select RDP (port 3389) and HTTP (Port 80). This configuration allows you to connect to your VM from your local machine.
**Step 10: Review Licensing**
Ensure that you have checked the licensing terms and conditions. By default, this box is unchecked. Click the box to acknowledge and accept the licensing terms for the chosen operating system.
**Step 11: Disable Boot Diagnostics**
In the "Monitoring" tab, locate the boot diagnostics option and click "Disable." This step is optional but can simplify the setup process for basic VM configurations.
**Step 12: Review and Create**
Click the "Review + Create" button. Azure will validate your configuration. If validation passes, click "Create" to start the deployment. If there are any issues, address the recommendations and try again. The deployment process typically takes 3-5 minutes.
**(Optional)** An important option to consider is the use of tags, which are crucial for organizing billing data. Tags can be utilized to group usage by cost center, especially if you are running multiple VMs for different organizations. Additionally, you can use tags to categorize costs by runtime environment, such as identifying the billing usage for VMs running in the production environment. Here, I will name the tag.
**Step 13: Verify VM Status**
Once the deployment is complete, navigate to the Virtual Machines dashboard and check the status of your VM. If the VM status is "Running," the deployment was successful.
**Step 14: Connect to Your Virtual Machine**
First, it's advisable to click on the public IP address and adjust the Idle timeout to the max (30 minutes), save after this step and close.
To connect to your VM, click on the "Connect" button in the VM blade within the Azure portal. For Windows VMs, choose "RDP" and for Linux VMs, choose "SSH."
**Step 15: Download the Connection File**
Wait for the Public IP to be configured, once validated and configured for a Windows VM, click "Download RDP File." Open the downloaded RDP file on your local computer and click "Connect."
For a Linux VM, follow the provided SSH connection instructions.
**Step 16: Enter Administrator Credentials**
When prompted, enter the administrator username and password that you created during the VM setup process. Click "OK" or "Connect" to proceed.
**Step 17: Complete the Connection**
Follow any additional prompts to complete the connection. You may need to accept a certificate warning. Click "Yes" or "Continue" as needed.
**Step 18: Start Using Your Virtual Machine**
Once connected, you can begin using your VM as needed. For a Windows VM, you will have a full desktop environment. For a Linux VM, you will have terminal access.
By following these steps, you can efficiently create and connect to a virtual machine on Azure, leveraging the power and flexibility of Azure's cloud infrastructure.
| jessemomoh |
1,870,308 | Unleashing the Power of the PCAP™ Certification: A Comprehensive Guide for Python Developers | Introduction to the PCAP Certification and Its Growing Popularity Python has become one of the most... | 0 | 2024-05-30T11:04:40 | https://dev.to/myexamcloud/unleashing-the-power-of-the-pcap-certification-a-comprehensive-guide-for-python-developers-ce4 | python, softwaredevelopment, coding, programming | Introduction to the PCAP Certification and Its Growing Popularity
Python has become one of the most in-demand programming languages globally, with its easy-to-use interface and diverse range of applications. As the demand for Python skills continues to increase, many developers are opting for certification programs to validate their expertise and stand out in a competitive job market. Among these certifications, the PCAP™ – Certified Associate Python Programmer is gaining popularity among both aspiring and experienced Python developers.
Exploring the Significance of the PCAP™ Certification for Python Developers
**1. Validates Advanced Python Skills and Knowledge**
The PCAP™ certification is designed to test the knowledge and proficiency of individuals in advanced areas of Python, such as modules and packages, string processing, exception handling, and object-oriented programming. By passing the PCAP™ exam, developers can demonstrate their understanding of these crucial concepts, showcasing their ability to handle complex coding tasks in Python.
**2. Sets Candidates Apart in a Competitive Job Market**
With the increasing popularity of Python, the job market for Python developers has become highly competitive. Having the PCAP™ certification listed on their resume can give candidates an advantage over others, as it indicates that they have taken the time to refine their skills and have the necessary expertise to tackle advanced coding challenges in Python. This is particularly beneficial for junior-level developers seeking their first job and experienced professionals looking to advance in their careers.
**3. Essential for Building a Career in Data Science and Machine Learning**
Python is widely used in data science and machine learning, making the PCAP™ certification a valuable asset for aspiring data scientists and machine learning engineers. The exam covers key concepts and techniques used in these fields, making it an excellent starting point for individuals looking to build a career in these rapidly growing and lucrative industries.
**4. Provides a Strong Foundation for Specialization**
The Certified Associate Python Programmer certification acts as a stepping stone for more advanced certifications offered by the Python Institute, such as the PCPP1™ and PCPP2™. These specializations focus on specialized areas like web development, network programming, and software development. By obtaining the PCAP™ certification, professionals can establish a solid foundation for further studies and prepare themselves for more challenging and specialized certifications, expanding their knowledge and career opportunities.
**5. Boosts Confidence and Encourages Self-Improvement**
Preparing for the PCAP™ Certification Exam: A Comprehensive Guide and Study Plan
**Breaking Down the PCAP Exam Preparation Study Plan**
The PCAP™ certification covers a wide range of topics, making it crucial for candidates to have a strong command of each area. Dividing the study plan into four phases can be beneficial for both fresher and experienced Python developers.
**Phase 1: Building a Strong Foundation and Gathering Study Resources (Week 1-2)**
The first phase of PCAP™ exam preparation involves understanding the entire syllabus and building a solid foundation for all the topics covered in the exam.
Section 1: Modules and Packages
Section 2: Exceptions
Section 3: Strings
Section 4: Object-Oriented Programming
Section 5: Miscellaneous
**Phase 2: Focusing on Each Topic in Detail (Week 3-6)**
The second phase requires candidates to focus on each topic of the exam in detail. It is critical to understand any language changes and use relevant study materials, such as OpenEDG Python Institute tutorials and MyExamCloud AI. Note-taking can be beneficial in retaining important concepts, such as forward and reverse indexing in lists.
**Phase 3: Regular Revision and Practice (Week 7-9)**
Regular revision and practice are crucial as the exam date approaches. Professionals can take objective-wise tests and work on improving their weaker areas during this phase.
**Phase 4: Attempting Mock Tests and Analyzing Performance (Week 10)**
In the final weeks leading up to the exam, candidates should focus on attempting mock tests and analyzing their performance. Taking full-length mock exams can help assess readiness for the final exam.
**Exploring MyExamCloud's Study Plan for PCAP™ Certification**
MyExamCloud offers a comprehensive study plan for PCAP™ certification preparation, including [PCAP practice tests,](https://www.myexamcloud.com/onlineexam/pcap-31-03-practice-tests.course) mock questions, full-length mock exams, and access to course content on a mobile app or web browser. With over 545 questions, candidates can practice and improve their skills in specific exam topics and track their progress through a customizable study plan.
**Conclusion**
The PCAP™ certification is a valuable credential for Python professionals, and proper preparation is critical for success in the exam. By following the daily schedule and 10-week study plan outlined in this guide and utilizing MyExamCloud's study plan, candidates can ensure thorough coverage of exam objectives and increase their confidence for the final exam. Don't wait any longer, start your PCAP™ certification preparation journey today!
{% embed https://youtu.be/McsEqMkD_L8?si=x9Zyw9n-fH3nPG0D %} | myexamcloud |
1,870,307 | Boost Your Query Accuracy with PostgreSQL Collation Expressions. | Collation is a feature in Postgresql that set rules which defines how data characters are stored,... | 0 | 2024-05-30T11:02:59 | https://dev.to/johnniekay/boost-your-query-accuracy-with-postgresql-collation-expressions-2060 | Collation is a feature in Postgresql that set rules which defines how data characters are stored, compared and sorted out in database. This feature allow you specify the sort order and character classification behavior of data per-column, or even per-operation.
A collation expression in PostgreSQL is a way to explicitly specify the collation to be used for sorting and comparing text data.
Collation can be set at different levels which reflects on different aspect of the database. These levels are:
- Database-level
- Column-level
- Expression-level
## Database-Level
Database level collation determines how the system sorts and compares string data within a database, Seting the collation at the database level establishes a consistent foundation for text handling, ensuring all text data follows the same rules unless explicitly overridden. This approach simplifies configuration and maintains consistency across your database.
When creating a new database, you can specify the collation settings using the `CREATE DATABASE` clause with `LC_COLLATE` and `LC_CTYPE` which defines the sort order and character classification respectively.
``` sql
CREATE DATABASE zion
LC_COLLATE = 'en_US.UTF-8'
LC_CTYPE = 'en_US.UTF-8';
```
In the above query:
- `CREATE DATABASE zion` clause specifies the creation of a new database named `zion`.
- `LC_COLLATE = 'en_US.UTF-8'` defines the database collation as `"en_US.UTF-8"`, indicating US English rules for character comparison with `UTF-8` encoding.
- `LC_CTYPE = 'en_US.UTF-8';` clause sets the character set for the database to `"en_US.UTF-8"`, ensuring support for a wide range of characters encoded in `UTF-8;`.
## Column-Level
Column-level collation, unlike database-level collation we mentioned earlier, allows you to define specific sorting and comparison rules for individual columns within a table. This provides more internal control over how text data is handled.
When you define a column-level collation, it actively overrides the database-level collation for that specific column. This allows you to tailor the sorting rules for each column based on its content and needs.
Say we create a table `novels` where the `name` column might contain product names with accented characters and we want these names to be sorted correctly, considering the accents. below is a query on how to define a column-level collation for this scenario:
``` sql
CREATE TABLE novels (
product_id INT PRIMARY KEY,
name VARCHAR(50) COLLATE "fr_FR.ci",
price DECIMAL,
description TEXT
);
```
This query creates a table named `novels` with four columns:
- `product_id INT PRIMARY KEY`: The `product` column with an integer data type that serves as the primary key, ensuring each value is unique and not null.
- `name VARCHAR(50)`: The `name` column with character data type which can hold up to 50 characters, uses the French case-insensitive collation `"fr_FR.ci"` for sorting and comparison.
- `price DECIMAL,`: The `price` column with decimal data type.
- `description TEXT`: The `description` column stores variable-length text, suitable for long descriptions.
This query establishes a structured way to manage a collection of novels with consistent text handling rules.
In column level collation, the `ALTER` statement plays a crucial role in modifying existing table structures, which includes changing the collation of a column. This statement forms the foundation for modifying an existing table.
``` sql
ALTER TABLE novels
MODIFY COLUMN name VARCHAR(50) COLLATE "de_DE";
```
From the query above:
- `ALTER TABLE novels` initiates the modification of the `novel` table.
- `MODIFY COLUMN name` specifies that we're modifying the `name` column.
- `VARCHAR(50) COLLATE "de_DE"` defines the new data type for name as varchar(50) alongside the German collation `"de_DE"`.
## Expression-Level
Expression-level collation allows you to specify the collation for individual string expressions within your queries, overriding the default collation of the column or database.
You can use the `COLLATE` clause within a string expression to define its collation. For example:
``` sql
SELECT name COLLATE "en_US" FROM customers;
```
Expression-level collation allows temporary overrides without affecting the underlying column definition.
Let's consider a table named `novels` with columns for `book_title` and `publication_year` where the `book_title` column might have titles with mixed cases. We want to sort them alphabetically, ignoring case differences, using US English rules.
Below is an expression-level collation query:
``` sql
SELECT book_title COLLATE "en_US.ci"
FROM books
ORDER BY book_title;
```
From the above query:
- `book_title COLLATE "en_US.ci"` applies the `COLLATE` clause to the book_title column, specifying the collation `"en_US.ci"` which defines US English sorting rules (en_US) while ignoring case.
- `ci` for case-insensitive.
- `ORDER BY book_title` clause uses the already collated title expression for sorting, ensuring case-insensitive alphabetical order.
## Collation options
Collation options dictate the settings or attributes you can choose to apply at the different levels of collation mentioned above. These options define the rules for comparing and sorting strings. They act like a set of rules that determine the order of characters, considering factors like case sensitivity and accent.
For example, if you have a database with different regional content, you might use different collation options for different columns or tables to ensure that text is sorted and compared correctly based on language-specific rules.
Below is a table of commonly used options:
| Option | Syntax | Description |
| ---- | ---- | ---- |
| Case sensitive | `_CS` | Uppercase and lowercase letters are treated differently. "Castle" would come before "castle" during sorting. |
| Case insensitive | `_CI` | Lower case and upper case are treated as identical, "Ban" and "ban" will be considered equal and might appear in order of other sorting rules. |
| Accent sensitive | `_AS` | used to consider accented and non accented letter separately. for example ‘a’ and ’ ấ’are not treated identical. |
| Accent insensitive | `_AI` | used to consider accented and non accented letter identical. for example ‘a’ and ’ ấ’are treated identical. |
| Width sensitive | `_WS` | Differentiates full width and half width characters present, if `_WS` wasn't mentioned then it is width-insensitive and hence full and half width characters will be considered as identical. |
By understanding the available collation options and choosing the appropriate ones for your data, you can ensure your database delivers accurate and meaningful results that meet your specific requirements. | johnniekay | |
1,870,306 | Best Android App Development Company In India | Do you want to hire the best android app developer in India? The greatest Android app development... | 0 | 2024-05-30T11:02:46 | https://dev.to/infowindtech57/best-android-app-development-company-in-india-307n | androidappdevelopment | Do you want to **[hire the best android app developer in India](https://www.infowindtech.com/best-android-app-development-company-in-india/)**? The greatest Android app development services are essential for revolutionary app development, so selecting the appropriate partner is crucial. Experience exceptional expertise with our top Android app service providers. The global mobile application market size was $206.85 billion in 2022 and is anticipated to rise 13.8% to $567.19 billion from 2024 to 2030. Our innovative mobile solutions revolutionise app development tactics, guaranteeing your project surpasses expectations. We're one of the best Android app development firms, delivering custom solutions with a team of experts.
Are you ready for excellence? Explore the options, hire the top mobile app developers, and learn successful mobile app development strategies.
⦁ Infowind Technologies
Infowind Technologies has helped in shaping the mobile app development landscape in the last decade by creating the tech rich apps that have boosted the customer business. With 60+ apps being tailored, they have been a part of the transformative journey that offers a lot to the startups, SME and MNC’s. The high performance native android apps designed and developed by Infowind are successfully live at the Play Store generating a huge amount of revenue. Making effective use of the resources, faster time-to-market, and cost effectiveness are some of their USP’s to ace the software development market.
⦁ ITRex
ITRex best android app development company in India provides technology consulting and software development worldwide. Since 2009, the firm has provided 500+ industry-specific solutions to Procter & Gamble, JibJab, TASC, PotentiaMetrics, Hyginex, Dun & Bradstreet, DogVacay, DealMe, Dollar Shave Club, and others. ITRex specialises in the Internet of Things, Big Data, Advanced Analytics, AI and ML, AR/VR, and RPA in Retail and eCommerce, Healthcare and Biotech, Education, and eLearning.
⦁ Konstant Infosolutions
Konstant Infosolutions is a reputed app development organisation that pioneers world-class apps for diverse industries. Their speciality is industry-wide customer satisfaction and improvement. They have expertise in all major technologies and are willing to adapt to changing technological needs. Applications are developed with timely delivery and budget in mind.
⦁ Dot Com Infoway
Dot Com Infoway develops and markets award-winning mobile apps in India. From idea to business consultancy, market research, development, testing & quality analysis, marketing, server and customer support, Dot Com Infoway offers everything. As a leading Mobile App Development Agency with 20+ years of expertise, they know what it takes to create an engaging app that captures customers' hearts and minds.
⦁ Evon Technologies
Evon Technologies is a prominent mobile app development firm with 250+ technology enthusiasts and evangelists who design, customise, and integrate sophisticated enterprise-level, advanced online, and mobile applications. Their headquarters is in Dehradun, India's Himalayan foothills. Evon Technologies provides cutting-edge IT consultation and development to startups and SMEs.
⦁ Solution Analysts
Solution Analysts is a top mobile app developer in India and the US. Solution Analysts develop corporate, startup, on-demand, and healthcare mobile applications. Their experience stems from designing mobile apps to meet our clients' needs and promising to exceed expectations.
⦁ Durapid Technologies
Durapid Technologies serves global businesses with IT solutions. We simplify all corporate processes, including research, forecasting, and service delivery optimisation! We have a decade of expertise in corporate digital transformation and understand the obstacles enterprises encounter when embracing a digital business transformation.
⦁ InnovationM
InnovationM, a worldwide IT service company based in India with locations in the US and UK, has been providing software development solutions for organisations in different sectors since 2012. They provide Web and cloud design and development, software outsourcing, mobile app development, eCommerce web development, online portal development, and location-based services.
⦁ Arka Softwares
Arka Software becomes old like wine. They innovate daily and produce goods and solutions beyond conception. Their software and mobile app development solutions are result-driven and have world-class aesthetics. They value effective innovation. Their decade of experience has deepened their awareness of global business marketplaces and issues.
⦁ Deqode
Decode helps companies enhance ROI using innovative technology. Since 2012, this India-based mobile app development service has served customers in over 20 countries via its US office. This mobile app firm has over 200 developers and 70+ projects completed. Their main offerings include mobile apps, blockchain, MVPs, and cloud computing.
⦁ Cumulations Technologies
Cumulations Technologies is a leading Indian mobile app developer and IoT solutions provider. They have successfully launched Android, iOS, IoT, and Flutter applications for startups and large enterprises since 2012. Their home automation, multimedia, healthcare, smart lighting, and vehicle tracking devices are excellent. They go the additional mile for each customer because they respect their trust.
⦁ Arthonsys Technologies
International online and mobile app developer Arthonsys Technologies has offices in India and the US. To change development tendencies, the creative and progressive IT hub was founded in 2016. The organisation aims to deliver high-quality IT services at affordable prices.
⦁ Design O web
Design O Web is a rapidly growing mobile app development company in the US. Their clients include major companies, SMBs, and financed startups. The 2014-founded company operates in the US, Australia, and Turkey. Since its founding, they have completed over 300 successful online and mobile app projects for startups and organisations.
⦁ DianApps
DianApps is a renowned mobile, web, and react app developer worldwide. Since its founding in 2017, the firm has grown, earned end-to-end competence with new technologies, and delivered groundbreaking products and services, becoming a prominent US and international app development company.
Conclusion
So hire the top android app development company, evaluate every queue to guarantee a smooth ride and provide long-term technical support, updates, and problem fixes after launch.
| infowindtech57 |
1,870,305 | AI for Developers, Finally! | Welcome, fellow tech enthusiasts, to our exploration of how AI is revolutionizing the world of... | 0 | 2024-05-30T11:02:05 | https://dev.to/mrsdevops/ai-for-developers-finally-91p | softwareengineering, ai, programming | Welcome, fellow tech enthusiasts, to our exploration of how AI is revolutionizing the world of software engineering. But hey, don't worry, I promise to keep it as entertaining as debugging a spaghetti code!
Picture this: you're staring at lines of code longer than the wait time for the latest iPhone release, and suddenly, in swoops AI like a superhero coder, not just reviewing your code, but predicting bugs faster than you can say "syntax error."
And guess what? It's not just any AI; it's like having a coding buddy who's read every programming book in existence and binge-watched every coding tutorial on YouTube. Talk about a smart companion!
But wait, there's more! With AI's predictive analytics, it's like having a crystal ball for your software. It can foresee system failures before they even think about crashing on you, saving you from those dreaded late-night emergency calls.
And let's not forget the hilarious moments when AI tries to be a team player. Picture this: AI suggesting tasks to your team like an overenthusiastic intern, or prioritizing workloads with the urgency of someone ordering pizza on a Friday night.
So, my fellow developers, embrace the AI revolution! It's not just about coding; it's about having a digital sidekick that's as reliable as your favorite debugging tool, with a sprinkle of humor to keep things interesting.
Stay tuned for more AI antics and software sorcery. And remember, keep coding, keep laughing, and keep innovating with AI!
| mrsdevops |
1,870,304 | Cloudzy: Demystifying Cloud Server Hosting: A Comprehensive Guide | Factors to Consider When Buying Cloud Server Hosting In the realm of digital... | 0 | 2024-05-30T11:02:04 | https://dev.to/ai-business/cloudzy-demystifying-cloud-server-hosting-a-comprehensive-guide-1a83 | productivity, learning, news | ## Factors to Consider When Buying Cloud Server Hosting
In the realm of digital infrastructure, selecting the right cloud server hosting solution demands careful consideration. Before committing to a provider, individuals and businesses must evaluate various factors to ensure they make an informed decision. Reliability, scalability, security, and pricing are paramount considerations.
Reliability entails assessing uptime guarantees and redundancy measures to minimize downtime. Scalability is crucial for accommodating growth and fluctuating resource demands. Security features, including encryption and robust firewalls, are vital for safeguarding sensitive data. Pricing should be evaluated against the features and support provided to ensure optimal value for money.
## Who Benefits from Cloud Server Hosting?
Cloud server hosting serves a diverse array of users, spanning from individual freelancers to large enterprises. [Small businesses](https://dev.to/gnese/8-best-bi-tools-for-small-businesses-4iim) can leverage cloud hosting to access enterprise-level infrastructure without hefty upfront investments. Freelancers and developers appreciate the flexibility and scalability of cloud servers, facilitating the deployment and management of applications.
[Enterprises benefit](https://dev.to/tarak/5-reasons-how-a-small-business-can-benefit-from-using-data-analytics-5ap9) from the agility and cost-effectiveness of cloud hosting, enabling them to innovate and adapt rapidly to market changes. E-commerce businesses rely on cloud servers to handle varying website traffic, ensuring consistent performance and user experience.
## Exploring the Possibilities of Cloud Server Hosting
Beyond conventional web hosting, cloud servers offer a myriad of possibilities. They can be used to deploy virtual desktops for remote work, host databases and applications, and implement robust disaster recovery solutions. Collaboration tools and platforms thrive in cloud environments, enhancing communication and teamwork among stakeholders.
## Experience Cloud Server Hosting Excellence with Cloudzy's Cloud Server Info
For unparalleled reliability, scalability, security, and affordability in cloud server hosting, individuals and businesses can turn to [Cloudzy's Cloud Server info](https://cloudzy.com/cloud-server/). Whether you're a small business owner seeking to expand your digital footprint or an enterprise in need of robust cloud infrastructure, [Cloudzy](https://cloudzy.com/) offers tailored solutions to meet your needs. Explore the comprehensive range of services at Cloudzy and elevate your online presence today.
| ai-business |
1,870,303 | [DAY 30-32] I Built A Spam Filter, Number Sorter, And Statistics Calculator | Hi everyone! Welcome back to another blog where I document the things I learned in web development. I... | 27,380 | 2024-05-30T11:01:44 | https://dev.to/thomascansino/day-30-32-i-built-a-spam-filter-number-sorter-and-statistics-calculator-ih9 | beginners, learning, javascript, webdev | Hi everyone! Welcome back to another blog where I document the things I learned in web development. I do this because it helps retain the information and concepts as it is some sort of an active recall.
On days 30-32, I built a spam filter, a number sorter, a statistics calculator, and solved 9 leetcode challenges which are:
1. Score Of A String
2. Display The First Three Rows (Python)
3. Return Length Of Arguments Passed
4. Modify Columns (Python)
5. Add Two Promises
6. Reshape Data: Concatenate (Python)
7. Concatenation Of Array
8. Create A New Column (Python)
9. Convert The Temperature
In these projects, I learned regular expressions, basic algorithmic thinking, advanced array methods, and some python concepts, as well as some of its syntax. Also, my skills in data structures & algorithms have improved because of the leetcode challenges I solved despite being rated as easy.
_Regex_ or _regexp_ are regular expressions, they are patterns that are useful to programmers to match, search, and replace text. I had a hard time understanding this concept because they use so many special characters, lol, I can’t be alone…
In the spam filter project, the program works by checking if the inputted message is a spam. Here, I learned about regex syntax and some general knowledge of how to use it (e.g. to mark “FREE STOCK ALERT” in code, use the expression: `const myRegex = /(?:^|\s)fr[e3][e3] (?:^|\s)[s5][t7][o0][c{[(]k [a@4]l[e3]r[t7](?:$|\s)/i;`). Now, when a user input the following message (including its other counterparts like “FR33 M0N3YY!!” and etc.)
In the number sorter project, a user must input a set of numbers and upon pressing the button, the program will sort them from smallest to largest. I learned how to implement and visualize different sorting algorithms like bubble sort, selection sort, and insertion sort in JavaScript.
In the statistics calculator project, if a user inputs a set of numbers, the program will calculate it according to each function and output the answer. I gained experience in handling user input, DOM manipulation, and method chaining. I also practiced my skills by performing statistical calculations like mean, median, and mode in an array of integers.
I didn’t finish the statistics calculator in this blog because the lesson is a bit longer, so I just finished the part where the program calculates for the mean, median, and mode of the input. In the next blog, I’ll be continuing the lesson where I code a program that calculates for the range, variance, and standard deviation.
Anyways, that’s all for now, more updates in my next blog! See you there! | thomascansino |
1,870,302 | Stainless Steel PVC Coated Tubes Manufacturers | Introduction: Stainless Steel PVC Coated Tubes are available in different wall thicknesses,... | 0 | 2024-05-30T11:00:15 | https://dev.to/metinox_overseas_a13472da/stainless-steel-pvc-coated-tubes-manufacturers-5fc6 | Introduction:
Stainless Steel PVC Coated Tubes are available in different wall thicknesses, standards, and sizes, and can also be customized to meet specific client needs. We supply these tubes to various corners of the world at competitive rates, accompanied by value-added services to ensure customer satisfaction.
Description:
With extensive experience and technical expertise in the sector, Metinox Overseas proudly introduces itself as a world-class manufacturer, supplier, and stockholder of Stainless Steel PVC Coated Tubes. These tubes are crafted to deliver reliable outcomes and are offered to global buyers in a variety of technical configurations.
**Stainless Steel PVC Coated Tubes Specification**
Specifications ASTM A213 / ASTM SA269
Range 1/2″ OD – 12″ OD
Guage 25 SWG – 10 SWG
Outer Diameter 3 mm – 219.10 mm
Thickness 0.5mm. 1mm, 1.5mm, 2mm (PVC thick)
Color Custom Color Available
Length Upto 30 Meter , Custom Cut Lengths
Types Round, Square, Rectangle, Coil , “U” Shape , Hydraulic & Honed Tubes
Benefits:
Enhanced Corrosion Resistance: The PVC coating provides an additional barrier against corrosion, significantly extending the lifespan of the stainless steel tubes in harsh environments.
Durability: The combination of stainless steel and PVC ensures superior mechanical strength and resistance to impact and abrasion.
Versatility: Suitable for a wide range of applications, including chemical processing, construction, marine, and HVAC systems.
Improved Aesthetics: The PVC coating not only offers protection but also enhances the visual appeal of the tubes, making them suitable for visible installations.
Ease of Maintenance: The smooth PVC surface reduces the accumulation of dirt and debris, making the tubes easier to clean and maintain.
Product Overview:
Metinoxoverseas' Stainless Steel PVC Coated Tubes are produced using advanced manufacturing techniques and stringent quality control measures. These tubes undergo rigorous testing to ensure they meet the highest standards for dimensional accuracy, mechanical properties, and coating adhesion. The PVC coating process is meticulously controlled to provide a uniform and durable finish. Designed to withstand challenging conditions, these tubes offer reliable performance and efficiency.
Conclusion:
In conclusion, Stainless Steel PVC Coated Tubes by Metinoxoverseas exemplify the highest standards of quality and engineering excellence. Their superior corrosion resistance, durability, and versatility make them indispensable for critical industrial applications. Supported by Metinoxoverseas' unwavering commitment to quality and customer satisfaction, these tubes deliver exceptional performance and longevity, significantly enhancing the efficiency and success of various operations.
For inquiries and orders, contact Metinoxoverseas at:
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| metinox_overseas_a13472da | |
1,845,539 | Ibuprofeno.py💊| #114: Explica este código Python | Explica este código Python Dificultad: Fácil print( ((True / True) - 10 )... | 25,824 | 2024-05-30T11:00:00 | https://dev.to/duxtech/ibuprofenopy-114-explica-este-codigo-python-3712 | python, spanish, learning, beginners | ## **<center>Explica este código Python</center>**
#### <center>**Dificultad:** <mark>Fácil</mark></center>
```py
print( ((True / True) - 10 ) * 9)
```
👉 **A.** `80`
👉 **B.** `81`
👉 **C.** `-81`
👉 **D.** `SyntaxError`
---
{% details **Respuesta:** %}
👉 **C.** `-81`
Nuevamente operaciones aritméticas con booleanos:
* `True / True` es lo mismo que `1/1`, por lo tanto nos da `1`.
* `1 - 10` nos dará `-9`
* Y `-9 * 9` será `-81` como resultado final.
{% enddetails %} | duxtech |
1,842,609 | The Adventures of Blink #25: Building Excitement | If you've been following my series "How to win with devs", a sort of "open letter" to engineering... | 26,966 | 2024-05-30T11:00:00 | https://dev.to/linkbenjamin/the-adventures-of-blink-25-building-excitement-5fnh | devrel, management, productivity, community | If you've been following my series "How to win with devs", a sort of "open letter" to engineering management and HR folks who want to learn more about how to better engage with the developer community, you've probably noticed that we've been covering some really heavy topics, and looking at long-standing practices that don't serve us anymore... it's been a little rough, hasn't it?
Hopefully you find that today's topic, with which I'm closing out the series, is a bit more lighthearted. Today we're talking about "Building Excitement" and how you can do this with your dev teams... and why you'd even want to!
## Happy engineers are productive engineers
Most people think of "managing people" as a task that requires _you_ as the manager to motivate them to get work done. I believe this is wrong thinking, and I'd like to illustrate it with an anecdote:
When I've had a pet project that I was really excited to work on, I've been known to **abandon everything else in life** until I finished it. I skipped _showers_. I skipped _**meals**_. I disappeared from my usual hangouts. While I was working on that project, I reoriented everything in my life around its completion. Even when I eventually took meal breaks, or walked the dog, or whatever... I was still deeply immersed in the project. I was thinking about the code I needed to write next, or how this component was going to interact with that one. I drew pictures of possible next step ideas while I sat in the waiting room at the doctor's office. I even **dreamed about it regularly**.
I ask you: does this sound like someone who needs to be motivated by their manager? Quite the opposite! This is someone who's likely going to hit a wall and burn out. Their manager will need to help them _unplug_ and provide _balance_.
This is the first rule I want you to learn: **If your developers are happy and excited by their work, <u>they're already predisposed to obsess over it</u>**. If you find yourself having to "manage them into productivity"... you have an _underlying problem_ to deal with!
## Ask yourself: Why are they disengaged?
In late 2009, Daniel Pink published a book called [Drive: The Surprising Truth About What Motivates Us](https://amzn.to/3wyrlT8). While this isn't written specifically about Engineers, its findings _definitely_ apply! He suggests that motivation is tied to three principles for most people:
- **Autonomy**: We want to be responsible for our work and our choices and we have the opportunity to direct ourselves.
- **Mastery**: We're driven to improve ourselves, to learn our craft more deeply and grow our knowledge and skill. We seek opportunities to level up.
- **Purpose**: We want to connect our efforts to a greater goal, to understand that we're doing something that matters.
One of the surprising points that came out of Pink's work was that **money didn't make the list**. Well, with a caveat - when you don't have enough to cover your necessities, money is perhaps the _strongest_ factor in motivation. But once you reach a salary level where you're not just scraping by anymore, this Autonomy/Mastery/Purpose triangle takes over. (It's also important to note: that even though money doesn't have as strong an influence on motivation after the inflection point, it's not an excuse to get cheap! Everyone can smell a 🐀!)
This is counterintuitive, particularly in business where management often assumes that the only lever they have to pull is "pay increases" to incentivize their workforce... they're shocked that it stops working, because they don't realize that their folks have shifted into that alternative mindset!
What does it mean to offer autonomy, mastery, and purpose? How would a company give that to its people? If these factors affect developer happiness and motivation, and therefore their productivity, how do I make changes that could influence a developer team?
### Autonomy
"Engineers being autonomous" can be a scary thing for managers. I mean, we're _managers_. Isn't it our role to _manage_?
When a manager develops their relationship with their team to promote mutual trust & understanding, it creates a breeding ground for autonomy. The manager doesn't feel the need to micromanage because their team does a great job of managing themselves.
On the other hand, when a manager interprets their role as "I tell the team what to do and they do it", it continually and rapidly erodes the trust between them until the only way anyone gets anything done is that the manager sits over their shoulder like a vulture and watches, continually adjusting direction and micromanaging. For an engineer, this is **_soul-crushing_**, y'all.
#### I'm... not there yet, blink. How can I begin to promote autonomy?
##### You're probably talking too much.
I'm not throwing shade... we *all* tend to talk too much! The wisdom here is to try _listening_. As the manager, the authority inherent in your position causes your opinion to carry more weight than theirs; therefore when you talk over them or interrupt them, you're shutting down the creative process. The implication you create is something like "Well, the boss knows what they want done and my opinion is just noise".
I heard Jeff Bezos say something in an interview once that stuck with me: "Leaders speak last". The idea behind this is that _when the "leader" speaks, everyone else makes the unconscious assumption that a decision has been reached_.
It leaves them thinking their input doesn't matter! By waiting until the end to add your own input to the discussion, you're offering a chance for everyone else to be heard. This is something you also need to train your senior team members on - because they also may squash their teammates' input unwittingly.
##### Your role is to clear obstacles, not design solutions
If you're managing engineers, you have a tremendous amount of creative problem-solving ability on your team. It might seem obvious, but it's worth saying: You aren't there to tell them how to solve the problem! Instead, focus your own personal efforts on finding the organizational hurdles - the dumb processes that prevent them from solving the problem, or the tools they need but don't have - and removing those barriers so they can focus on their problem. Most engineers hate doing paperwork, it's often a disruption in their day. Something as simple as "hey, I opened that ticket for you to get access to the database" might keep your engineer "in the zone" for an extra 30 minutes one day, and you can't begin to fathom the value of that!
##### Ask the dumb questions
One of the most valuable skills that I've learned is how to be willing to ask the "stupid questions" when problem solving in a group. Many people are afraid to ask questions for fear of looking like they're incompetent, but asking questions is a critical skill in solving problems. So even if you already have some idea what the answer is, ask the question for the benefit of the others on your team!
### Mastery
The second motivating factor for people in Pink's research was the concept of _mastery_. That is, people are motivated by a desire to level up their skills! There's a "secret" corollary to this desire: _EVERYONE_ has some skills that can be leveled up!
Mastery's opposite is _boredom_. And that's one thing that most engineers absolutely cannot stand! They're motivated to learn and grow and improve, and if they're constrained from doing those things, it's _devastating_.
#### What are some ideas to promote mastery?
- Observe.
I see mastery working hand-in-hand with autonomy - an autonomous engineer is going to find problems they want to solve, projects they want to work on. Your role as their manager is to study them... see if you can identify what kinds of problems they love to work on, and then give them more of those kinds of things.
- Make it safe.
Learning requires failure. If your opportunities to level up are always on high-priority, high-visibility efforts with scary ramifications for failing, you're doing your team a disservice. Make sure they have plenty of lower-stakes places to work on their skills and improve. You can't always avoid the high-pressure situation, but try to ensure it isn't the _only_ path to leveling up.
- Budget for it.
If you don't already have one... build a professional development budget, and put it to good use. Supporting your team as they learn new skills that they can put to valuable use at work should be a no-brainer, but it's frightening how many companies either don't invest at all in this, or do it haphazardly. Do you have a plan for how you're going to help each person on your team level up a skill this year?
### Purpose
This motivator is the most abstract, and it will be very different for each person. Some of it you may not have any control over at all. What the heck is "Purpose"?
Purpose could mean:
- They relate strongly to the mission of the company
- They have a deep passion for a certain type of skill set
- They care about a certain persona of customer
Any "higher meaning" in their work can become a Purpose, but it will be highly subjective. Your role in this motivator is to help them _find_ it.
#### Helping your team find their Purpose
- Relationship, Relationship, Relationship.
Any assistance you can render here will come directly from how well you know your team. Cultivating a strong personal relationship with each of your engineers will give you the insight into their characters and desires and guide you toward their Purpose.
- Not everything is an assignment.
This one is scary for managers who tend to want to micromanage... but have you considered leaving your team some free time to work on things that **they** choose?
It seems counterintuitive, but the best way to increase efficiency is actually to build in idle time! If you run the shop at 100% constantly, you create contention when two projects collide (instead of having some slack where they can easily shift to accommodate unexpected turbulence). You also create a culture of burnout (because your team never gets to breathe, you're always on to the next thing with no chance to regroup).
Good engineers, when given a workload that has a bit of idle time built in ([15-20% is mathematically ideal!](https://blog.mi.hdm-stuttgart.de/index.php/2019/03/11/queueing-theory-and-practice-or-crash-course-in-queueing/)), will occupy themselves with productive tasks whenever that idle time arrives... they just aren't _assigned_ tasks, and that makes all the difference. Remember our first motivator? **_Autonomy!_** Your engineers will begin to find their purpose when they have a chance to be autonomous.
## Wrapping up
There are ultimately two ways for people to be motivated: _extrinsically_ and _intrinsically_. You can bribe, cajole, nudge... even beat them with a stick... but you'll never be able to match the output of someone who's motivated from within themselves. As a manager, you have tremendous influence in this space - and while you'll be tempted to take the quick path and provide extrinsic motivation, I want to encourage you to stick with your "gardening efforts"... cultivate that motivation from within your teams and watch amazing things happen!
## Speaking of "Building Excitement"...
Next week we're going to delve back into the world of AI! This next Adventure is probably my favorite episode so far, because I get to have a chat with...
Nah. Not spoiling it. 😏 Make sure you give me a follow so that you'll be reminded to tune in next week when we start to play with Large Language Models! | linkbenjamin |
1,870,301 | Error on verge of extinction, or why I put if (x = 42) in Red List of C & C++ bugs | If we ask a programmer what bugs are the most common in C and C++ code, they'll name a null pointer... | 0 | 2024-05-30T10:58:29 | https://dev.to/anogneva/error-on-verge-of-extinction-or-why-i-put-if-x-42-in-red-list-of-c-c-bugs-p54 | cpp, programming, coding | If we ask a programmer what bugs are the most common in C and C\+\+ code, they'll name a null pointer dereference, undefined behavior, array overrun, and other typical error patterns\. They may name an accidental assignment in condition as well\. However, let's see if this error is common today\.
C and C\+\+ use the *=* symbol for the assignment operator and *==* for the comparison operator\. That's why we may make typos when we write *=* instead of *==* and get compliable but incorrectly operating code\.
These errors look like this:
```cpp
int abcd = foo();
if (abcd = -1)
```
There are two unpleasant things going on at once:
1. The condition is always true or false, depending on what is assigned to the variable\.
1. The correct value has been lost\. If the *abcd* variable is used elsewhere, its value will be invalid \(corrupted\)\.
These errors are simple yet common and notorious among programmers\. Although devs don't film movies about bugs, they make memes about them\.
The bugs look like they're from these memes, though\. For example, I've [found](https://community.intel.com/t5/Intel-Business-Client-Software/PVS-Studio-vs-AMT-SDK/td-p/780817) the following code in the AMT SDK project:
```cpp
if (status = true)
{
PrintSuccess();
}
```
Because of this bug, developers invented the [Yoda notation](https://en.wikipedia.org/wiki/Yoda_conditions): a programming style where the constant is placed on the left side of the comparison operator\.
```cpp
if (-1 == abcd)
```
This style was meant to prevent a typo\. If a programmer writes *=* instead of *==*, the code won't compile\.
However, this notation hasn't caught on in real cases\. At least, I've seen it very rarely in open\-source projects\.
Btw, I don't like this coding style too\. First, it makes the code a bit more complicated: you look at the constant and only then realize what the code is about and what is checked\.
Second, the coding style won't help if two variables are compared with each other:
```cpp
int x = getx();
int y = gety();
if (x = y)
```
In my opinion, it's better to declare all variables that are further used read\-only as *const*\. This reduces the likelihood that typos or failed refactoring will cause accidental modification\.
```cpp
const int abcd = foo();
if (abcd = -1) // The compilation error
{
const int x = getx();
const int y = gety();
if (x = y) // The compilation error
```
Sorry, I got a little distracted\. In the beginning, I talked about the rarity of such bugs and the Red List\. Let's get back to the main topic of the article\.
Once I was preparing for a conference talk, where I've discussed how expectations to find errors in code align with reality\. To prove it, I researched [our collection of bugs](https://pvs-studio.com/en/blog/examples/) found over several years of writing articles about open\-source project checking\.
Sometimes, expectations match reality\. For example, programmers suppose that there are many bugs in C and C\+\+ code related to null pointer dereference and array overrun\. Indeed, such bugs are common\.
Sometimes, expectations don't match reality\. A programmer is very likely to say something about division by zero, but there are few such errors in reality\. At least if we compare it to many other bugs\.
Of course, I couldn't help but look at assignment errors in conditions\. It seems like there should be a mountain of them\.
But, surprise, surprise, that such errors are quite rare in open\-source projects\! We only found [14 cases](https://pvs-studio.com/en/blog/examples/v559/)\. Fun fact, but **the last error we wrote out was in 2016**\!
It's amazing how high expectations are, and there are no errors\!
Let's dig deeper into the statistics again\. With the [V559](https://pvs-studio.com/en/docs/warnings/v559/) diagnostic rule, the PVS\-Studio analyzer detects errors related to an assignment in a condition\. The rule was introduced in PVS\-Studio 4\.12 on February 7, 2011\.
For some time, the analyzer found these errors, but gradually they became fewer and fewer\. The last one we found was in 2016\. Although we still write many [articles](https://pvs-studio.com/en/blog/inspections/) about checking open\-source projects, it has been eight years since we last saw errors like that\.
I think this is an amazing and nice example of how some kinds of errors go extinct due to development of programmers' tools\. I don't think that such errors have died off because everyone is aware of them, and now developers write code more carefully\. As our experience shows, typos are still as common as they're 10 years ago\.
So, it looks like the tools affect it\. At first, static analyzers detected such errors\. Then the compilers caught it up and started to detect it too\. Generally, there are no compilers that will ignore an assignment in a condition\. If we write such code now, and we'll see warnings all around: an IDE highlights the code, compilers and static analyzers issue warnings\. We just can't help but see the error\. Gorgeous\!
Of course, I'm not saying that there are no programs with these bugs at all\. We encounter such programs, but they're very rare\. In addition, in my experience, we haven't seen them in a long time when checking different projects\.
By the way, doesn't it mean that static analyzers will become unnecessary as compilers issue more and more warnings? No, of course not\. The analyzer development doesn't stand still, either\. They are working on to detect more and more complex and intricate errors\. Analyzers comprises such technologies as interprocedural and intermodular analysis, data\-flow analysis, symbolic execution, taint analysis, and so on\. In addition, they can afford to run longer and use more memory than compilers\. This means we can go deeper and analyze more complex data\.
We may say that static analyzers set the direction of compilers development in terms of detecting bugs\. We've even [noticed](https://pvs-studio.com/en/blog/posts/0659/) how diagnostic rules from PVS\-Studio move into compilers\. Our team is proud that PVS\-Studio is a source of inspiration for new things coming out\. Let good diagnostic rules influence the tools\. This way, there will be fewer errors\. Meanwhile, we'll write more rules\. After all, someone has to find bugs in compilers :\)
```cpp
auto FirstSemiPos = Line.find(';');
if (FirstSemiPos == std::string::npos)
continue;
auto SecondSemiPos = Line.find(';', FirstSemiPos + 1);
if (FirstSemiPos == std::string::npos) // <= SecondSemiPos should be checked
continue;
```
Here's an example of the typo in the LLVM code — the PVS\-Studio analyzer issued the following warning: V547 Expression 'FirstSemiPos == std::string::npos' is always false\. UnicodeNameMappingGenerator\.cpp 46\.
[If you wish, you can look at other bugs in compilers](https://pvs-studio.com/en/blog/posts/?tag=compiler)\.
Finally, let's look back at the assignment in the condition:
```cpp
int abcd;
while (abcd = foo())
```
What if the code author really wants to assign and check at the same time?
The first option: if we write in C\+\+ and we need the variable only inside the body of the *if/while* instruction, we can declare it directly in the condition\.
```cpp
while (int abcd = foo())
```
Now it's obvious, that there's a variable declaration with initialization and subsequent check\.
The second option: almost all developers of compilers and code analyzers have an unspoken agreement that additional parentheses are a sign that everything is OK\.
```cpp
while ((abcd = foo()))
```
If a programmer has written the code like this, it almost sounds like, "I know what I am doing, this code is correct"\. In this case, compilers and analyzers don't issue the warning\.
Thank you for your attention\. The Skeletor Unicorn will be back soon with some new, mind\-boggling information\. | anogneva |
1,870,296 | A Trip To The Beach | This is a submission for [Frontend Challenge... | 0 | 2024-05-30T10:57:54 | https://dev.to/madsstoumann/a-trip-to-the-beach-f9i | devchallenge, frontendchallenge, css, javascript | _This is a submission for [Frontend Challenge v24.04.17]((https://dev.to/challenges/frontend-2024-05-29), Glam Up My Markup: Beaches_
## What I Built
I built a beautiful day at the beach, using the text about beaches as sand!
## Demo
{% codepen https://codepen.io/stoumann/pen/ExzZEzq %}
<!-- Show us your project! You can directly embed an editor into this post (see the FAQ section from the challenge page) or you can share an image of your project and share a public link to the code. -->
## Journey
Not much CSS required. It's a `radial-gradient` for the sun and a `linear-gradient` for the sky. The `<main>`-element has been styled with a sandy background, and I've removed all the default styling from it's children using `all: unset;`:
```css
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&display=swap');
body {
align-content: end;
background:
radial-gradient(circle, #ffff00 65%, #0000 67.5%) 90% 5% / 10cqb 10cqb no-repeat,
linear-gradient(180deg, #00bfff, #add8e6) 0% 0% / 100% 100% no-repeat;
color: #f3f3f399;
display: grid;
font-family: "Bebas Neue", sans-serif;
font-size: 3vh;
margin: 0;
min-height: 100vh;
overflow: hidden;
}
header {
letter-spacing: .1em;
line-height: 1;
padding-inline: 2ch;
}
main {
background: #FFFFE3;
line-height: .75;
text-align: justify;
* { all: unset; }
}
```
<!-- Team Submissions: Please pick one member to publish the submission and credit teammates by listing their DEV usernames directly in the body of the post. -->
<!-- We encourage you to consider adding a license for your code. -->
<!-- Don't forget to add a cover image to your post (if you want). -->
<!-- Thanks for participating! --> | madsstoumann |
1,870,298 | Using the New Milvus-Lite | The easy way to complete Gen AI solutions anywhere A revolutionary new release is now out that... | 0 | 2024-05-30T10:56:59 | https://dev.to/tspannhw/using-the-new-milvus-lite-4dea | milvus, milvuslite, opensource, vectordatabase | The easy way to complete Gen AI solutions anywhere
A revolutionary new release is now out that brings your AI databases anywhere and adds easy to developing enterprise Gen AI applications.
GitHub - milvus-io/milvus-lite: A lightweight version of Milvus
A lightweight version of Milvus. Contribute to milvus-io/milvus-lite development by creating an account on GitHub.
github.com
It is easy to get started.
pip3 install -U pymilvus
You need 2.4.3 where milvus-lite is embedded in the Python client for Milvus.
I installed this on my Mac M1 in seconds. Let’s rock.
I am going to install on some edge devices as well and follow that up with some cool examples in the coming weeks.
There are a lot of different types of Python environments, installing this in a Dockerized environment, Jupyter notebook or virtual Python environment is probably wise as there are some many libraries needed in most AI applications.
If you are okay with it, for Python 3.11, you can always do this:
pip3 install -U "pymilvus[2.4.3]" --break-system-packages
That is a last resort, I recommend going another way. Once installed you can quickly get started. You know it’s the least recommended way when they give you three pages of warnings then drop that extra tag at the bottom. So go with a virtual environment, please.
A better way is with a Python 3 Virtual Environment.
timothyspann@MacBook-Pro code % python3 -m venv milvusvenv
timothyspann@MacBook-Pro code % source milvusvenv/bin/activate
(milvusvenv) timothyspann@MacBook-Pro code % python3 -m pip install pymilvus -U
Collecting pymilvus
Using cached pymilvus-2.4.3-py3-none-any.whl.metadata (5.3 kB)
Collecting setuptools>=67 (from pymilvus)
Using cached setuptools-70.0.0-py3-none-any.whl.metadata (5.9 kB)
Collecting grpcio<=1.63.0,>=1.49.1 (from pymilvus)
Using cached grpcio-1.63.0-cp312-cp312-macosx_10_9_universal2.whl.metadata (3.2 kB)
Collecting protobuf>=3.20.0 (from pymilvus)
Using cached protobuf-5.27.0-cp38-abi3-macosx_10_9_universal2.whl.metadata (592 bytes)
Collecting environs<=9.5.0 (from pymilvus)
Using cached environs-9.5.0-py2.py3-none-any.whl.metadata (14 kB)
Collecting ujson>=2.0.0 (from pymilvus)
Using cached ujson-5.10.0-cp312-cp312-macosx_11_0_arm64.whl.metadata (9.3 kB)
Collecting pandas>=1.2.4 (from pymilvus)
Using cached pandas-2.2.2-cp312-cp312-macosx_11_0_arm64.whl.metadata (19 kB)
Collecting milvus-lite<2.5.0,>=2.4.0 (from pymilvus)
Downloading milvus_lite-2.4.6-py3-none-macosx_11_0_arm64.whl.metadata (5.6 kB)
Collecting marshmallow>=3.0.0 (from environs<=9.5.0->pymilvus)
Using cached marshmallow-3.21.2-py3-none-any.whl.metadata (7.1 kB)
Collecting python-dotenv (from environs<=9.5.0->pymilvus)
Using cached python_dotenv-1.0.1-py3-none-any.whl.metadata (23 kB)
Collecting numpy>=1.26.0 (from pandas>=1.2.4->pymilvus)
Using cached numpy-1.26.4-cp312-cp312-macosx_11_0_arm64.whl.metadata (61 kB)
Collecting python-dateutil>=2.8.2 (from pandas>=1.2.4->pymilvus)
Using cached python_dateutil-2.9.0.post0-py2.py3-none-any.whl.metadata (8.4 kB)
Collecting pytz>=2020.1 (from pandas>=1.2.4->pymilvus)
Using cached pytz-2024.1-py2.py3-none-any.whl.metadata (22 kB)
Collecting tzdata>=2022.7 (from pandas>=1.2.4->pymilvus)
Using cached tzdata-2024.1-py2.py3-none-any.whl.metadata (1.4 kB)
Collecting packaging>=17.0 (from marshmallow>=3.0.0->environs<=9.5.0->pymilvus)
Using cached packaging-24.0-py3-none-any.whl.metadata (3.2 kB)
Collecting six>=1.5 (from python-dateutil>=2.8.2->pandas>=1.2.4->pymilvus)
Using cached six-1.16.0-py2.py3-none-any.whl.metadata (1.8 kB)
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Using cached grpcio-1.63.0-cp312-cp312-macosx_10_9_universal2.whl (10.1 MB)
Downloading milvus_lite-2.4.6-py3-none-macosx_11_0_arm64.whl (19.8 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 19.8/19.8 MB 39.2 MB/s eta 0:00:00
Using cached pandas-2.2.2-cp312-cp312-macosx_11_0_arm64.whl (11.3 MB)
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Installing collected packages: pytz, ujson, tzdata, six, setuptools, python-dotenv, protobuf, packaging, numpy, milvus-lite, grpcio, python-dateutil, marshmallow, pandas, environs, pymilvus
Successfully installed environs-9.5.0 grpcio-1.63.0 marshmallow-3.21.2 milvus-lite-2.4.6 numpy-1.26.4 packaging-24.0 pandas-2.2.2 protobuf-5.27.0 pymilvus-2.4.3 python-dateutil-2.9.0.post0 python-dotenv-1.0.1 pytz-2024.1 setuptools-70.0.0 six-1.16.0 tzdata-2024.1 ujson-5.10.0
(milvusvenv) timothyspann@MacBook-Pro code % python3 testlite.py
data: ["[{'id': 0, 'distance': 0.9999999403953552, 'entity': {'text': 'Artificial intelligence was founded as an academic discipline in 1956.', 'subject': 'history'}}, {'id': 2, 'distance': -0.046234432607889175, 'entity': {'text': 'Born in Maida Vale, London, Turing was raised in southern England.', 'subject': 'history'}}]"] , extra_info: {'cost': 0}
data: ["{'id': 0, 'text': 'Artificial intelligence was founded as an academic discipline in 1956.', 'subject': 'history'}", "{'id': 1, 'text': 'Alan Turing was the first person to conduct substantial research in AI.', 'subject': 'history'}", "{'id': 2, 'text': 'Born in Maida Vale, London, Turing was raised in southern England.', 'subject': 'history'}"] , extra_info: {'cost': 0}
[0, 1, 2]
(milvusvenv) timothyspann@MacBook-Pro code %
What is pretty awesome is that Milvus Lite, think lean and clean like MiNiFi, not Lite as in weak beer, is a lightweight vector database that runs within your Python application. So you just need to install the Python SDK for Milvus and you get the local vector database included. You can now run on the edge or develop applications with the same API as enterprise Milvus deployments in clusters that scale to billions of vectors. You just need to change where you point your Milvus connection.
From:
client = MilvusClient(“db/milvus_demo.db”)
To:
client = MilvusClient( uri=”http://server:19530" )
Or:
client = MilvusClient( uri=”https://server12345.serverless.gcp-us-west1.cloud.zilliz.com", token=”tokenX”)
What’s cool is nothing else changes and you can access and use all the core components for vector index and query parsing. It runs fast as a Python process. This library has already been integrated with the world’s leading AI dev stacks LlamaIndex and LangChain. There is also integration with Haystack AI and HuggingFace along with many others.
You can now setup a Retrieval-Augmented Generation (RAG) pipeline without having to setup a server or sign up for a cloud cluster before you start. When it’s time to go to production you can deploy to a cluster or Zilliz Cloud. Easy, peasy, cluster squeezy…
There’s a cool notebook you can try right now:
bootcamp/bootcamp/tutorials/quickstart/image_search_with_milvus.ipynb at master ·…
Dealing with all unstructured data, such as reverse image search, audio search, molecular search, video analysis…
github.com
If you don’t have Jupyter installed yet (do that in that virtual environment).
Project Jupyter
The Jupyter Notebook is a web-based interactive computing platform. The notebook combines live code, equations…
jupyter.org
I will be going through a number of cool examples and providing guidance at my upcoming meetups in Princeton and New York City.
Unstructured Data Meetup New York | Meetup
This meetup is for people working in unstructured data. Speakers will come present about related topics such as vector…
www.meetup.com
If you are not in New York or Princeton area, have no worries we will stream and record to Youtube. There are also other meetups around the world including San Francisco, South Bay, Berlin and Seattle.
Upcoming Zilliz Unstructured Data Meetups
Join Zilliz and other AI industry experts to learn, share and discuss unstructured data in LLMs at monthly meetups in…
zilliz.com
If you saw my recent newsletter you can see I joined Zilliz to work on the Open Source AI Database, Milvus.
Tim Spann: Why I Joined Zilliz - Zilliz blog
Why Tim Spann Joined Zilliz
zilliz.com
FLiPStackWeekly/139-27May2024.md at main · tspannhw/FLiPStackWeekly
FLaNK AI Weekly covering Apache NiFi, Apache Flink, Apache Kafka, Apache Spark, Apache Iceberg, Apache Ozone, Apache…
github.com
I am working on a name for my new pattern of applications. It could be FLaNK-AIM or AIM (AI + Milvus) or Tim-Tam (Tim’s Towhee AI/Attu Milvus). Tim can also stand for TIMM (Pytorch Image Models).
Tim Spann's Stuff
Web survey powered by SurveyMonkey.com. Create your own online survey now with SurveyMonkey's expert certified FREE…
www.surveymonkey.com
I added a survey if you want to help, thanks! I appreciate it. You could also leave a comment if you like.
RESOURCES
Release langchain-milvus==0.1.0 · langchain-ai/langchain
Release langchain-milvus==0.1.0 Initial release milvus: fix core dep (#22239) milvus: New langchain_milvus package and…
github.com
AWS Partner Solutions Finder
Edit description
partners.amazonaws.com
I will be adding all of my favorite vector database, AI Database, LLM, Generative AI, Milvus and related items to my new website:
Open Source Vector Databases
Open Source Vector Databases
Open Source Vector Databaseswww.opensourcevectordb.cloud
Milvus Sizing Tool
Milvus is the world's most advanced open-source vector database, built for developing and maintaining AI applications…
milvus.io
GitHub - milvus-io/pymilvus: Python SDK for Milvus.
Python SDK for Milvus. Contribute to milvus-io/pymilvus development by creating an account on GitHub.
github.com
| tspannhw |
1,758,556 | WEB4 | WEB4 is a Robosymbiotic and Robocyborg software that leverages technologies to create a... | 0 | 2024-05-30T10:56:01 | https://dev.to/web4app/web4-3pfk | news, development, productivity, webdev | WEB4 is a Robosymbiotic and Robocyborg software that leverages technologies to create a modern,efficient and user-friendlyecosystem which includes BOT, ARTIFICIAL INTELLIGENCE,BLOCKCHAINS ETC
| web4app |
1,870,299 | Using Milvus-Lite Now | ** The easy way to complete Gen AI solutions anywhere** A revolutionary new release is now out... | 0 | 2024-05-30T10:57:35 | https://dev.to/tspannhw/using-milvus-lite-now-4n59 | milvus | ---
title: Using Milvus-Lite Now
published: true
date: 2024-05-30 10:56:00 UTC
tags: milvus
canonical_url:
---
** The easy way to complete Gen AI solutions anywhere**
<section style="box-sizing: inherit;"><div style="box-sizing: inherit;"><div style="box-sizing: inherit; overflow-wrap: break-word; word-break: break-word;"><div style="box-sizing: inherit; display: flex; justify-content: center;"><div style="box-sizing: inherit; margin: 0px 24px; max-width: 680px; min-width: 0px; width: 680px;">
<p style="box-sizing: inherit; clear: both; margin: 56px auto 0px;"></p>
<div role="button" style="box-sizing: inherit; cursor: zoom-in; position: relative; transition: transform 300ms cubic-bezier(0.2, 0, 0.2, 1) 0s; width: 680px; z-index: auto;" tabindex="0"><div style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 1024px;"><img alt="" height="700" loading="eager" role="presentation" src="https://miro.medium.com/v2/resize:fit:1400/1*LRGvCmALMVHCRoErSYRJsg.png" style="box-sizing: inherit; height: auto; max-width: 100%; vertical-align: middle; width: 680px;" width="700"></div></div>
<p data-selectable-paragraph="" id="321a" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>A revolutionary new release is now out that brings your AI databases anywhere and adds <span style="box-sizing: inherit; font-weight: 700;">easy</span> to developing enterprise Gen AI applications.</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://github.com/milvus-io/milvus-lite?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>GitHub - milvus-io/milvus-lite: A lightweight version of Milvus</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>A lightweight version of Milvus. Contribute to milvus-io/milvus-lite development by creating an account on GitHub.</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>github.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*GC0IT0fK4CnWo6Me"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="fd35" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>It is easy to get started.</p>
<pre style='background: rgb(249, 249, 249); border-radius: 4px; border: 1px solid rgb(229, 229, 229); box-sizing: inherit; color: #242424; font-family: source-code-pro, Menlo, Monaco, "Courier New", Courier, monospace; margin-bottom: 0px; margin-top: 56px; overflow-x: auto; padding: 32px;'><span data-selectable-paragraph="" id="84c2" style="box-sizing: inherit; display: block; font-size: 14px; letter-spacing: -0.022em; line-height: 1.4; margin-bottom: -0.2em; margin-top: -0.2em; min-width: fit-content;">pip3 install -U pymilvus</span></pre>
<p data-selectable-paragraph="" id="b83b" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>You need<span style="box-sizing: inherit; font-weight: 700;"> 2.4.3 </span>where milvus-lite is embedded in the Python client for Milvus.</p>
<p data-selectable-paragraph="" id="7a53" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I installed this on my Mac M1 in seconds. Let’s rock.</p>
<p data-selectable-paragraph="" id="0c14" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I am going to install on some edge devices as well and follow that up with some cool examples in the coming weeks.</p>
<p data-selectable-paragraph="" id="8172" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>There are a lot of different types of Python environments, installing this in a Dockerized environment, Jupyter notebook or virtual Python environment is probably wise as there are some many libraries needed in most AI applications.</p>
<p data-selectable-paragraph="" id="4276" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>If you are okay with it, for Python 3.11, you can always do this:</p>
<pre style='background: rgb(249, 249, 249); border-radius: 4px; border: 1px solid rgb(229, 229, 229); box-sizing: inherit; color: #242424; font-family: source-code-pro, Menlo, Monaco, "Courier New", Courier, monospace; margin-bottom: 0px; margin-top: 56px; overflow-x: auto; padding: 32px;'><span data-selectable-paragraph="" id="65ad" style="box-sizing: inherit; display: block; font-size: 14px; letter-spacing: -0.022em; line-height: 1.4; margin-bottom: -0.2em; margin-top: -0.2em; min-width: fit-content;">pip3 install -U <span style="box-sizing: inherit; color: #c41a16;">"pymilvus[2.4.3]"</span> --break-system-packages</span></pre>
<p data-selectable-paragraph="" id="dea1" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>That is a last resort, I recommend going another way. Once installed you can quickly get started. You know it’s the least recommended way when they give you three pages of warnings then drop that extra tag at the bottom. So go with a virtual environment, please.</p>
<p data-selectable-paragraph="" id="c435" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>A better way is with a Python 3 <a href="https://docs.python.org/3/library/venv.html" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank">Virtual Environment</a>.</p>
<pre style='background: rgb(249, 249, 249); border-radius: 4px; border: 1px solid rgb(229, 229, 229); box-sizing: inherit; color: #242424; font-family: source-code-pro, Menlo, Monaco, "Courier New", Courier, monospace; margin-bottom: 0px; margin-top: 56px; overflow-x: auto; padding: 32px;'><span data-selectable-paragraph="" id="8f78" style="box-sizing: inherit; display: block; font-size: 14px; letter-spacing: -0.022em; line-height: 1.4; margin-bottom: -0.2em; margin-top: -0.2em; min-width: fit-content;">timothyspann@MacBook-Pro code % python3 -m venv milvusvenv<br style="box-sizing: inherit;">timothyspann@MacBook-Pro code % <span style="box-sizing: inherit; color: #5c2699;">source</span> milvusvenv/bin/activate<br style="box-sizing: inherit;">(milvusvenv) timothyspann@MacBook-Pro code % python3 -m pip install pymilvus -U<br style="box-sizing: inherit;">Collecting pymilvus<br style="box-sizing: inherit;"> Using cached pymilvus-2.4.3-py3-none-any.whl.metadata (5.3 kB)<br style="box-sizing: inherit;">Collecting setuptools>=67 (from pymilvus)<br style="box-sizing: inherit;"> Using cached setuptools-70.0.0-py3-none-any.whl.metadata (5.9 kB)<br style="box-sizing: inherit;">Collecting grpcio<=1.63.0,>=1.49.1 (from pymilvus)<br style="box-sizing: inherit;"> Using cached grpcio-1.63.0-cp312-cp312-macosx_10_9_universal2.whl.metadata (3.2 kB)<br style="box-sizing: inherit;">Collecting protobuf>=3.20.0 (from pymilvus)<br style="box-sizing: inherit;"> Using cached protobuf-5.27.0-cp38-abi3-macosx_10_9_universal2.whl.metadata (592 bytes)<br style="box-sizing: inherit;">Collecting environs<=9.5.0 (from pymilvus)<br style="box-sizing: inherit;"> Using cached environs-9.5.0-py2.py3-none-any.whl.metadata (14 kB)<br style="box-sizing: inherit;">Collecting ujson>=2.0.0 (from pymilvus)<br style="box-sizing: inherit;"> Using cached ujson-5.10.0-cp312-cp312-macosx_11_0_arm64.whl.metadata (9.3 kB)<br style="box-sizing: inherit;">Collecting pandas>=1.2.4 (from pymilvus)<br style="box-sizing: inherit;"> Using cached pandas-2.2.2-cp312-cp312-macosx_11_0_arm64.whl.metadata (19 kB)<br style="box-sizing: inherit;">Collecting milvus-lite<2.5.0,>=2.4.0 (from pymilvus)<br style="box-sizing: inherit;"> Downloading milvus_lite-2.4.6-py3-none-macosx_11_0_arm64.whl.metadata (5.6 kB)<br style="box-sizing: inherit;">Collecting marshmallow>=3.0.0 (from environs<=9.5.0->pymilvus)<br style="box-sizing: inherit;"> Using cached marshmallow-3.21.2-py3-none-any.whl.metadata (7.1 kB)<br style="box-sizing: inherit;">Collecting python-dotenv (from environs<=9.5.0->pymilvus)<br style="box-sizing: inherit;"> Using cached python_dotenv-1.0.1-py3-none-any.whl.metadata (23 kB)<br style="box-sizing: inherit;">Collecting numpy>=1.26.0 (from pandas>=1.2.4->pymilvus)<br style="box-sizing: inherit;"> Using cached numpy-1.26.4-cp312-cp312-macosx_11_0_arm64.whl.metadata (61 kB)<br style="box-sizing: inherit;">Collecting python-dateutil>=2.8.2 (from pandas>=1.2.4->pymilvus)<br style="box-sizing: inherit;"> Using cached python_dateutil-2.9.0.post0-py2.py3-none-any.whl.metadata (8.4 kB)<br style="box-sizing: inherit;">Collecting pytz>=2020.1 (from pandas>=1.2.4->pymilvus)<br style="box-sizing: inherit;"> Using cached pytz-2024.1-py2.py3-none-any.whl.metadata (22 kB)<br style="box-sizing: inherit;">Collecting tzdata>=2022.7 (from pandas>=1.2.4->pymilvus)<br style="box-sizing: inherit;"> Using cached tzdata-2024.1-py2.py3-none-any.whl.metadata (1.4 kB)<br style="box-sizing: inherit;">Collecting packaging>=17.0 (from marshmallow>=3.0.0->environs<=9.5.0->pymilvus)<br style="box-sizing: inherit;"> Using cached packaging-24.0-py3-none-any.whl.metadata (3.2 kB)<br style="box-sizing: inherit;">Collecting six>=1.5 (from python-dateutil>=2.8.2->pandas>=1.2.4->pymilvus)<br style="box-sizing: inherit;"> Using cached six-1.16.0-py2.py3-none-any.whl.metadata (1.8 kB)<br style="box-sizing: inherit;">Using cached pymilvus-2.4.3-py3-none-any.whl (194 kB)<br style="box-sizing: inherit;">Using cached environs-9.5.0-py2.py3-none-any.whl (12 kB)<br style="box-sizing: inherit;">Using cached grpcio-1.63.0-cp312-cp312-macosx_10_9_universal2.whl (10.1 MB)<br style="box-sizing: inherit;">Downloading milvus_lite-2.4.6-py3-none-macosx_11_0_arm64.whl (19.8 MB)<br style="box-sizing: inherit;"> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 19.8/19.8 MB 39.2 MB/s eta 0:00:00<br style="box-sizing: inherit;">Using cached pandas-2.2.2-cp312-cp312-macosx_11_0_arm64.whl (11.3 MB)<br style="box-sizing: inherit;">Using cached protobuf-5.27.0-cp38-abi3-macosx_10_9_universal2.whl (412 kB)<br style="box-sizing: inherit;">Using cached setuptools-70.0.0-py3-none-any.whl (863 kB)<br style="box-sizing: inherit;">Using cached ujson-5.10.0-cp312-cp312-macosx_11_0_arm64.whl (51 kB)<br style="box-sizing: inherit;">Using cached marshmallow-3.21.2-py3-none-any.whl (49 kB)<br style="box-sizing: inherit;">Using cached numpy-1.26.4-cp312-cp312-macosx_11_0_arm64.whl (13.7 MB)<br style="box-sizing: inherit;">Using cached python_dateutil-2.9.0.post0-py2.py3-none-any.whl (229 kB)<br style="box-sizing: inherit;">Using cached pytz-2024.1-py2.py3-none-any.whl (505 kB)<br style="box-sizing: inherit;">Using cached tzdata-2024.1-py2.py3-none-any.whl (345 kB)<br style="box-sizing: inherit;">Using cached python_dotenv-1.0.1-py3-none-any.whl (19 kB)<br style="box-sizing: inherit;">Using cached packaging-24.0-py3-none-any.whl (53 kB)<br style="box-sizing: inherit;">Using cached six-1.16.0-py2.py3-none-any.whl (11 kB)<br style="box-sizing: inherit;">Installing collected packages: pytz, ujson, tzdata, six, setuptools, python-dotenv, protobuf, packaging, numpy, milvus-lite, grpcio, python-dateutil, marshmallow, pandas, environs, pymilvus<br style="box-sizing: inherit;">Successfully installed environs-9.5.0 grpcio-1.63.0 marshmallow-3.21.2 milvus-lite-2.4.6 numpy-1.26.4 packaging-24.0 pandas-2.2.2 protobuf-5.27.0 pymilvus-2.4.3 python-dateutil-2.9.0.post0 python-dotenv-1.0.1 pytz-2024.1 setuptools-70.0.0 six-1.16.0 tzdata-2024.1 ujson-5.10.0<br style="box-sizing: inherit;">(milvusvenv) timothyspann@MacBook-Pro code % python3 testlite.py<br style="box-sizing: inherit;">data: [<span style="box-sizing: inherit; color: #c41a16;">"[{'id': 0, 'distance': 0.9999999403953552, 'entity': {'text': 'Artificial intelligence was founded as an academic discipline in 1956.', 'subject': 'history'}}, {'id': 2, 'distance': -0.046234432607889175, 'entity': {'text': 'Born in Maida Vale, London, Turing was raised in southern England.', 'subject': 'history'}}]"</span>] , extra_info: {<span style="box-sizing: inherit; color: #c41a16;">'cost'</span>: 0}<br style="box-sizing: inherit;">data: [<span style="box-sizing: inherit; color: #c41a16;">"{'id': 0, 'text': 'Artificial intelligence was founded as an academic discipline in 1956.', 'subject': 'history'}"</span>, <span style="box-sizing: inherit; color: #c41a16;">"{'id': 1, 'text': 'Alan Turing was the first person to conduct substantial research in AI.', 'subject': 'history'}"</span>, <span style="box-sizing: inherit; color: #c41a16;">"{'id': 2, 'text': 'Born in Maida Vale, London, Turing was raised in southern England.', 'subject': 'history'}"</span>] , extra_info: {<span style="box-sizing: inherit; color: #c41a16;">'cost'</span>: 0}<br style="box-sizing: inherit;">[0, 1, 2]<br style="box-sizing: inherit;">(milvusvenv) timothyspann@MacBook-Pro code %</span></pre>
<p style="box-sizing: inherit; clear: both; margin: 56px auto 0px;"></p>
<div role="button" style="box-sizing: inherit; cursor: zoom-in; position: relative; transition: transform 300ms cubic-bezier(0.2, 0, 0.2, 1) 0s; width: 680px; z-index: auto;" tabindex="0"><div style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 1024px;"><img alt="" height="700" loading="lazy" role="presentation" src="https://miro.medium.com/v2/resize:fit:1400/1*1gs8t5NON42fGGe2-JKnhA.png" style="box-sizing: inherit; height: auto; max-width: 100%; vertical-align: middle; width: 680px;" width="700"></div></div>
<p data-selectable-paragraph="" id="c392" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>What is pretty awesome is that Milvus Lite, think lean and clean like MiNiFi, not Lite as in weak beer, is a lightweight vector database that runs within your Python application. So you just need to install the Python SDK for Milvus and you get the local vector database included. You can now run on the edge or develop applications with the same API as enterprise Milvus deployments in clusters that scale to billions of vectors. You just need to change where you point your Milvus connection.</p>
<h1 data-selectable-paragraph="" id="8787" style='box-sizing: inherit; color: #242424; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 24px; letter-spacing: -0.016em; line-height: 30px; margin: 1.95em 0px -0.28em;'>From:</h1>
<blockquote style="box-shadow: rgb(36, 36, 36) 3px 0px 0px 0px inset; box-sizing: inherit; margin: 0px 0px 0px -20px; padding-left: 23px;"><p data-selectable-paragraph="" id="7c01" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; font-style: italic; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>client = MilvusClient(“db/milvus_demo.db”)</p></blockquote>
<h1 data-selectable-paragraph="" id="29ca" style='box-sizing: inherit; color: #242424; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 24px; letter-spacing: -0.016em; line-height: 30px; margin: 1.95em 0px -0.28em;'><span style="box-sizing: inherit; font-weight: inherit;">To:</span></h1>
<blockquote style="box-shadow: rgb(36, 36, 36) 3px 0px 0px 0px inset; box-sizing: inherit; margin: 0px 0px 0px -20px; padding-left: 23px;"><p data-selectable-paragraph="" id="bea8" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; font-style: italic; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>client = MilvusClient( uri=”http://server:19530" )</p></blockquote>
<h1 data-selectable-paragraph="" id="aad2" style='box-sizing: inherit; color: #242424; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 24px; letter-spacing: -0.016em; line-height: 30px; margin: 1.95em 0px -0.28em;'>Or:</h1>
<blockquote style="box-shadow: rgb(36, 36, 36) 3px 0px 0px 0px inset; box-sizing: inherit; margin: 0px 0px 0px -20px; padding-left: 23px;"><p data-selectable-paragraph="" id="8efe" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; font-style: italic; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>client = MilvusClient( uri=”https://server12345.serverless.gcp-us-west1.cloud.zilliz.com", token=”tokenX”)</p></blockquote>
<p data-selectable-paragraph="" id="375b" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>What’s cool is nothing else changes and you can access and use all the core components for vector index and query parsing. It runs fast as a Python process. This library has already been integrated with the world’s leading AI dev stacks LlamaIndex and LangChain. There is also integration with Haystack AI and HuggingFace along with many others.</p>
<p data-selectable-paragraph="" id="69d5" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>You can now setup a Retrieval-Augmented Generation (RAG) pipeline without having to setup a server or sign up for a cloud cluster before you start. When it’s time to go to production you can deploy to a cluster or Zilliz Cloud. Easy, peasy, cluster squeezy…</p>
<p data-selectable-paragraph="" id="77c1" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>There’s a cool notebook you can try right now:</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://github.com/milvus-io/bootcamp/blob/master/bootcamp/tutorials/quickstart/image_search_with_milvus.ipynb?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>bootcamp/bootcamp/tutorials/quickstart/image_search_with_milvus.ipynb at master ·…</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Dealing with all unstructured data, such as reverse image search, audio search, molecular search, video analysis…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>github.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*4Eyb1JdaIhZxHl53"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="c6af" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>If you don’t have Jupyter installed yet (do that in that virtual environment).</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://jupyter.org/install?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Project Jupyter</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>The Jupyter Notebook is a web-based interactive computing platform. The notebook combines live code, equations…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>jupyter.org</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*2f7fGEay_MWZF4Bf"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="4217" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I will be going through a number of cool examples and providing guidance at my upcoming meetups in Princeton and New York City.</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://www.meetup.com/unstructured-data-meetup-new-york/?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Unstructured Data Meetup New York | Meetup</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>This meetup is for people working in unstructured data. Speakers will come present about related topics such as vector…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>www.meetup.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*sLLn8-KcrYbCwaGL"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="89e1" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>If you are not in New York or Princeton area, have no worries we will stream and record to Youtube. There are also other meetups around the world including San Francisco, South Bay, Berlin and Seattle.</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://zilliz.com/community/unstructured-data-meetup?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Upcoming Zilliz Unstructured Data Meetups</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Join Zilliz and other AI industry experts to learn, share and discuss unstructured data in LLMs at monthly meetups in…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>zilliz.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*aXlVj96tc00FIcN_"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="d190" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>If you saw my recent newsletter you can see I joined <a href="https://zilliz.com/" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank">Zilliz</a> to work on the Open Source AI Database, <a href="https://milvus.io/" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit;" target="_blank">Milvus</a>.</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://zilliz.com/blog/why-i-joined-zilliz-tim-spann?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Tim Spann: Why I Joined Zilliz - Zilliz blog</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Why Tim Spann Joined Zilliz</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>zilliz.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*U-6_3unczajzyDSW"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://github.com/tspannhw/FLiPStackWeekly/blob/main/139-27May2024.md?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>FLiPStackWeekly/139-27May2024.md at main · tspannhw/FLiPStackWeekly</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>FLaNK AI Weekly covering Apache NiFi, Apache Flink, Apache Kafka, Apache Spark, Apache Iceberg, Apache Ozone, Apache…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>github.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*s5eUtP6_Pzg6Q1ku"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="3d4c" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I am working on a name for my new pattern of applications. It could be FLaNK-AIM or AIM (AI + Milvus) or <span style="box-sizing: inherit; font-weight: 700;">Tim-Tam</span> (Tim’s Towhee AI/Attu Milvus). Tim can also stand for <span style="box-sizing: inherit; font-weight: 700;">TIMM</span> (Pytorch Image Models).</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://www.surveymonkey.com/r/M7JV9BT?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Tim Spann's Stuff</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Web survey powered by SurveyMonkey.com. Create your own online survey now with SurveyMonkey's expert certified FREE…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>www.surveymonkey.com</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*kSxkZiPt-sm1GvUo"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<p data-selectable-paragraph="" id="3da8" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I added a survey if you want to help, thanks! I appreciate it. You could also leave a comment if you like.</p>
<p style="box-sizing: inherit; clear: both; margin: 56px auto 0px;"></p>
<div role="button" style="box-sizing: inherit; cursor: zoom-in; position: relative; transition: transform 300ms cubic-bezier(0.2, 0, 0.2, 1) 0s; width: 680px; z-index: auto;" tabindex="0"><div style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 1024px;"><img alt="" height="700" loading="lazy" role="presentation" src="https://miro.medium.com/v2/resize:fit:1400/1*HKLR7vx7ns3TG0bZPS1u9w.png" style="box-sizing: inherit; height: auto; max-width: 100%; vertical-align: middle; width: 680px;" width="700"></div></div>
<h1 data-selectable-paragraph="" id="642d" style='box-sizing: inherit; color: #242424; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 24px; letter-spacing: -0.016em; line-height: 30px; margin: 1.95em 0px -0.28em;'>RESOURCES</h1>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://github.com/langchain-ai/langchain/releases/tag/langchain-milvus%3D%3D0.1.0?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Release langchain-milvus==0.1.0 · langchain-ai/langchain</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Release langchain-milvus==0.1.0 Initial release milvus: fix core dep (#22239) milvus: New langchain_milvus package and…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>github.com</p></div>
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<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*yPJMo--9V-EjWc1e"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
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<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://partners.amazonaws.com/partners/0010h00001ftEjvAAE/?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;"><div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>AWS Partner Solutions Finder</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Edit description</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>partners.amazonaws.com</p></div>
</div></div></a></div>
<p data-selectable-paragraph="" id="8d17" style='box-sizing: inherit; color: #242424; font-family: source-serif-pro, Georgia, Cambria, "Times New Roman", Times, serif; font-size: 20px; letter-spacing: -0.003em; line-height: 32px; margin: 2.14em 0px -0.46em; word-break: break-word;'>I will be adding all of my favorite vector database, AI Database, LLM, Generative AI, Milvus and related items to my new website:</p>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://www.opensourcevectordb.cloud/?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Open Source Vector Databases</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Open Source Vector Databases</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Open Source Vector Databaseswww.opensourcevectordb.cloud</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*TvrbQaoebSnzWX1f"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
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<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://milvus.io/tools/sizing?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Milvus Sizing Tool</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Milvus is the world's most advanced open-source vector database, built for developing and maintaining AI applications…</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>milvus.io</p></div>
</div>
<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*5nvu6ujT-1ZU0SN-"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
</div></a></div>
<div style="box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; margin-top: 32px;"><a href="https://github.com/milvus-io/pymilvus?source=post_page-----5a0565eb5dd9--------------------------------" rel="noopener ugc nofollow" style="-webkit-tap-highlight-color: transparent; box-sizing: inherit; text-decoration-line: none;" target="_blank"><div style="box-sizing: inherit; display: flex; flex: 0 0 auto; padding: 0px;">
<div style="box-sizing: inherit; display: flex; flex-direction: column; flex: 1 1 auto; justify-content: center; padding: 16px 20px;">
<h2 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #242424; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; letter-spacing: 0px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>GitHub - milvus-io/pymilvus: Python SDK for Milvus.</h2>
<div style="box-sizing: inherit; margin-top: 8px;"><h3 style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-weight: 400; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>Python SDK for Milvus. Contribute to milvus-io/pymilvus development by creating an account on GitHub.</h3></div>
<div style="box-sizing: inherit; margin-top: 12px;"><p style='-webkit-box-orient: vertical; -webkit-line-clamp: 2; box-sizing: inherit; color: #6b6b6b; display: -webkit-box; font-family: sohne, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px; line-height: 20px; margin: 0px; max-height: 40px; overflow: hidden; text-overflow: ellipsis;'>github.com</p></div>
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<div style="box-sizing: inherit; width: 160px;"><div style='background-image: url("https://miro.medium.com/v2/da:true/resize:fit:320/0*0PHQSRr5fpeBhI7G"); background-origin: border-box; background-position: 50% 50%; background-size: cover; box-shadow: rgb(242, 242, 242) 0px 0px 0px 1px inset; box-sizing: inherit; height: 167px; max-width: 100%; width: 160px;'></div></div>
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<p style="box-sizing: inherit; clear: both; margin: 56px auto 0px;"></p>
<div role="button" style="box-sizing: inherit; cursor: zoom-in; position: relative; transition: transform 300ms cubic-bezier(0.2, 0, 0.2, 1) 0s; width: 680px; z-index: auto;" tabindex="0"><div style="box-sizing: inherit; margin-left: auto; margin-right: auto; max-width: 1024px;"><img alt="" height="700" loading="lazy" role="presentation" src="https://miro.medium.com/v2/resize:fit:1400/1*0_nXclRzm2iIJBux9pMgEw.png" style="box-sizing: inherit; height: auto; max-width: 100%; vertical-align: middle; width: 680px;" width="700"></div></div>
</div></div></div></div></section> | tspannhw |
1,870,297 | Greetings to everyone 😀 | Good day everyone! My name is Babatunde a frontend dev with less than a year experience I am new to... | 0 | 2024-05-30T10:51:07 | https://dev.to/babatundexbt/greetings-to-everyone-4ll2 | Good day everyone!
My name is Babatunde a frontend dev with less than a year experience
I am new to the community
And I am willing to learn from everyone to gain more knowledge. Thanks for this opportunity 🤝 | babatundexbt | |
1,870,295 | Comprehensive List of 50+ Ecommerce Test Cases | eCommerce test cases are the particular scenarios and activities performed to determine whether an... | 0 | 2024-05-30T10:48:23 | https://dev.to/devanshbhardwaj13/comprehensive-list-of-50-ecommerce-test-cases-3c75 | testing, programming, webdev, cloud | eCommerce test cases are the particular scenarios and activities performed to determine whether an e-commerce website or application is functional and easy to use. These test cases check that consumers can perform typical e-commerce actions including product browsing, adding goods to their carts, and making purchases, as well as that the website or application is operating appropriately. Testing the checkout process, the search capability, the capacity to add and remove things from a cart, and the capacity to examine purchase history and monitor shipments are a few examples of e-commerce test cases.
Test cases can also be used to assess the website’s responsiveness and device compatibility, including desktop and mobile. It also helps to identify and resolve any issues that may affect the functionality, security, performance, and compliance of the website.
**What is eCommerce testing?**
eCommerce testing is the process of evaluating an online store’s functionality and usability to ensure that it is functioning properly and providing a positive customer experience. This type of testing includes a variety of tests such as [functional testing](https://www.lambdatest.com/learning-hub/functional-testing/?utm_source=devto&utm_medium=organic&utm_campaign=apr_23&utm_term=bw&utm_content=learning_hub), usability testing, security testing, performance testing and many more. These tests are again carried out to identify and solve any issues or bugs before the website is made live to the public. This is important for an eCommerce business, because it makes sure that customers can easily navigate and use the website and also that their sensitive information is kept secure and safe.
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## eCommerce Testing Types
E-commerce websites operate similarly to other web and mobile sites. As a result, it goes through numerous sorts of testing, including:
* Functional testing: Functional testing is done to ensure that the eCommerce system operates correctly and according to plan. This involves evaluating the website or application’s compatibility with various mobile devices and web browsers, as well as the security and usability of the checkout process and the functionality of all payment and delivery options.
* Performance testing: This kind of testing evaluates how well a system performs under various loads and stress levels. To ensure website reliability and responsiveness under high traffic, this also includes load testing and stress testing.
* User acceptability testing (UAT): End users conduct this kind of testing to make sure the eCommerce platform satisfies their demands and is simple to use.
* Exploratory testing: This sort of testing consists of system exploration to find bugs and usability problems.
* Regression testing: Regression testing is used to make sure that modifications to the eCommerce system don’t result in the introduction of brand-new flaws or the breakdown of already-existing functionality.
## eCommerce test cases
* **User registration and login:** Ensure that users can properly register for an account and log in to the site. You need to check that the “Create Account” button or link takes you to the registration page. On the registration page, ensure that all required fields (such as name, email, and password) are present. Check that the password strength indicator is operational and displays the appropriate level of strength for passwords entered. When attempting to register with an email address that is already associated with an account, ensure that the “Email already in use” error message is displayed.
* Check to see if a confirmation email is sent after successful registration so that users can log in using their registered email address and password. When attempting to log in with incorrect credentials, ensure that the “Incorrect email or password” error message appears. Check that if a user forgets their password, they can reset it. Check that the user’s session is kept after logging in and that the user is redirected to the correct page (such as their account page). Check that a user can exit their account by clicking the “Logout” button or link.
* **Product search and filtering:** Test that users can search for products and filter results by various criteria such as price, brand, and category. After that we need to check that the search bar is present and functional on the website. When searching for a specific product by name, ensure that the correct results are displayed. Check that the search results page includes information about each product, such as an image, name, and price. We also need to check to see if the search results can be filtered by category, price range, and other relevant criteria.
Check that the filter options are displayed correctly and that the user can select them. Check that the filtered results are correct and meet the criteria you’ve chosen. Check that the number of results displayed is correct and corresponds to the number of products that meet the search criteria. Check that the sorting options (such as price or name) are available and functional. Check to see if the pagination feature is present and functional, and that you can navigate through the results. Check to see if the search results page is accessible and responsive on various devices and browsers.
* **Product details and reviews:** Verify that users can view detailed information about products, including images, descriptions, and customer reviews. Check that all relevant information, such as the product name, price, and availability, is displayed on the product page. Make sure the product image is properly displayed and that users can zoom in and out to see it in greater detail. Ensure that the product description is complete and accurate, and that all relevant details such as dimensions, materials, and features are included. After that check to see if the product page includes customer reviews and that users can access them by clicking a link or button. Check that the product page has a section for customer ratings and that the average rating is correctly displayed. Make sure users can sort reviews by date or rating and filter reviews by star rating.
Make sure the product page has a section for related products and that users can easily navigate to them. Check that the product page has a section for frequently asked questions so that users can find answers to frequently asked questions and also that the product page has a section for warranty and return policies so that users can easily find this information.
* **Shopping cart and checkout:** Test that users can add items to their cart, view the contents of their cart and proceed to checkout. Check that users can add products to their carts and that the total is correctly calculated. Ensure the shopping cart shows the correct number of items and total cost. Check that the user can change the number of items in their cart and that the total is updated accordingly. Check that users can remove items from their shopping carts and that the total is updated. Check that the shopping cart is easily accessible from any page on the website and that users can easily navigate to it. Check that the product information, such as name, image, and price, is displayed correctly on the shopping cart page. Check that discounts or coupon codes applied to the order are visible on the shopping cart page.
On the shopping cart page, ensure that users can see their order total, including tax and shipping costs. Check that the shopping cart page includes a button or link to the checkout page. Check that the checkout process is secure and that sensitive information is encrypted properly. Check that the order total, including tax and shipping costs, is displayed on the checkout page. Check that users can select a shipping method and that the cost is correctly displayed. Check that users can select a payment method and that the appropriate fields for entering payment information are displayed.
Users should be able to enter and update their billing and shipping information. Make sure the checkout page has a review and submit button so users can double-check their order before submitting it. Check that users receive an order confirmation email with accurate information. Check that users can cancel or change their orders before they are processed. Check that the checkout process can handle multiple items and that payments can be processed for all items in the cart.
* **Order placement and confirmation:** Order placement and confirmation test cases are used to ensure that a user can successfully place an order on a website or application and that the order is correctly confirmed and processed. Checking the functionality of the shopping cart, the checkout process, payment processing, and the generation of order confirmations are examples of test cases. Furthermore, test cases may look for error messages and edge cases, such as insufficient inventory or incorrect payment information.
* **Payment processing:** To make sure that payment transactions are handled properly on a website or application, payment processing test cases are performed. The functionality of various payment mechanisms, including credit card, debit card, net banking, and UPI, may be tested in these test cases. Furthermore, test cases might also look for error messages and edge scenarios, such as incorrect payment information, credit card expiration dates, insufficient cash, and other things. Additionally, it checks for fraud detection and encryption during the payment process.
* **Order tracking:** To make sure that customers can monitor their orders on a website or application and that the tracking information is correct and up-to-date, order tracking test cases are deployed. These test cases might involve examining the order tracking system’s operation, the veracity of tracking data, and customers’ access to and capacity to change their order information. Test cases may also look for edge cases and error messages, such as erroneous tracking numbers or missing order details. Additionally, it checks the customer’s order history, email notifications, and SMS notifications.
* **Customer service:** A website or application’s customer service and support capabilities are tested using eCommerce customer service test cases to determine their efficacy and efficiency. These test cases might cover situations like examining the potential for contacting customer service by phone, email, or live chat, reading the potential for tracking and viewing the progress of a service request, examining the possibility for viewing and updating account information, and examining the potential for returning or exchanging goods. Test cases may also verify that customer support is helpful and able to address problems quickly.
* **Mobile compatibility:** In order to make sure that a website or application is completely operational and usable on mobile devices, mobile compatibility test cases for e-commerce are created. These test cases may cover situations like evaluating the layout and design of the website or application on various mobile devices and screen sizes, evaluating the usability of buttons and links, evaluating the capability to conduct transactions such as purchases, evaluating the responsiveness of the website or application, and evaluating the compatibility with various mobile browsers. Test cases may also be used to assess compatibility with different mobile operating systems, including iOS and Android. In general, mobile compatibility test cases are crucial to guarantee that users can access and utilize the eCommerce platform while on the go and that the website or application offers a smooth and satisfying experience on all devices.
* **Security:** To make sure a website or application is safe and shielded from dangers like hacking and data breaches, security test cases for e-commerce are created. These test cases can involve evaluating the robustness of login credentials, the encryption of critical information, the capacity to identify and block unauthorized access, the infrastructure security of the website or service, or the capacity to bounce back from a security incident. To secure sensitive client data, maintain the integrity of the e-commerce platform, and provide customers trust in the security and safety of their transactions, security test cases are fundamental.
* **Homepage and navigation:** eCommerce homepage and navigation test cases are created to make sure that the homepage and navigation of the website or application work properly and efficiently for users. These test cases might cover scenarios like evaluating the homepage’s structure and design, the operation of navigation menus, links, and buttons, the accessibility of and ability to browse products, the functionality of the search engine, the responsiveness of the homepage and navigation, and the compatibility with various devices and browsers. The usability and friendliness of the site and navigation may also be tested in test scenarios.
* **Product listing and sorting:** For e-commerce websites, product listing and sorting test cases are created to make sure that the website’s or application’s functions are functioning properly and effectively. These test cases might cover scenarios like examining how to view and browse products, how filters and sorting options work, how accurately product information is presented, how to add and remove items from the shopping cart, how quickly the product listing and sorting features respond, and how well they work across various devices and browsers. The usability and user-friendliness of the capabilities for product listing and sorting may also be tested using test cases.
* **Promotion and discount codes:** For e-commerce websites, promotion and discount code test cases check that the site successfully applies and calculates discounts based on different promotional offers and coupon codes. Examples of possible testing scenarios include:
* Using a working promo code, then confirming that the desired discount has been applied to the order
* Applying an expired or invalid coupon code to see if the website handles the mistake properly
* Verifying that the website properly handles applying discounts to items that are already on sale and testing combinations of various coupon codes and promotions to make sure the right discounts are applied
* ensuring that the website correctly imposes use restrictions on the use of coupon codes (e.g. one-time use, limited to certain customers)
To make sure that the discounts and promotions are accurately shown and that the final price is computed, it’s also crucial to verify the checkout process and purchase confirmation page.
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* **Tax calculation:** Depending on a number of variables, including the customer’s location, the items in the purchase, and any applicable tax exemptions, accurately calculates and applies taxes to orders. Examples of possible testing scenarios include:
* confirming that the website applies the correct tax rate according to the customer’s location
* Testing the proper application of tax exemptions (for specific items or clients, for example).
* ensuring that taxes on items that are already on sale or have discounts applied are calculated properly by the website
* Checking sure shipping and handling costs’ taxes are calculated and applied accurately
* Checking sure the website responds appropriately when a customer’s location or other information changes while they are checking out
* **Email notifications:** For e-commerce websites, email notification test cases check that the website sends the appropriate emails to administrators and customers at different points in the purchasing process. Examples of possible testing scenarios include:
* Confirming that clients who place orders receive an email confirmation
* To see if clients actually get an email with tracking information when their product ships
* Confirming that clients receive emails containing links to check the progress of their orders
* Checking that each time a new purchase is placed, administrators receive an email
* Confirming that emails are sent to customers when an order is canceled or refunded
* **Internationalization and localization:** For e-commerce websites, internationalization and localization test cases involve making sure that the website can support numerous languages and currencies and that it displays the right language and currency based on the customer’s location. Additionally, it’s crucial to test the checkout procedure and purchase confirmation page to make sure that the prices are accurately converted and shown in the customer’s local currency, as well as that the proper language and currency are displayed.
* **Accessibility:** For e-commerce websites, accessibility test cases are often used to make sure that the site is usable by those with disabilities, such as those who are blind or have low vision, have hearing impairments, or have mobility impairments. Tests for things like keyboard accessibility, alternative text for images, video captioning, and appropriate use of heading and semantic elements may be part of this. To ensure accessibility for all users, it’s also crucial to test the website on various devices and with screen readers.
* **Search engine optimization:** The structure, content, and technological components of eCommerce websites are tested as part of search engine optimization (SEO) test cases to make sure they are search engine-friendly. Testing the website’s title tags, meta descriptions, headings, URLs, content, graphics, site speed, sitemaps, Google analytics, and link-building techniques can be a part of this. These tests check that the website is user-friendly, pertinent, of good quality, and simple for search engines to crawl. It becomes crucial to verify that the website is search engine-optimized and that the site can be properly crawled and indexed by search engines.
* **Performance and scalability: **For e-commerce websites, performance and scalability test cases include evaluating the website’s capacity to manage several concurrent users and transactions as well as how effectively it functions under various loads. This may involve doing tests on variables such as reaction speed, throughput, resource use, and stability. Testing for security flaws, browser compatibility, and the website’s capacity to withstand heavy traffic and peak loads are additional possibilities. The aim of these tests is to make sure that the website is scalable and can handle a high volume of users and transactions without experiencing any downtime or performance deterioration.
* **Integration with external systems:** Including external system integration The integration and functionality of the website with other systems, such as payment gateways, shipping providers, inventory management systems, and any other external systems on which the website depends, are among the test cases for e-commerce websites. This can involve verifying the integration’s security, the processing speed of transactions, and the precision of the data communicated between the website and other systems. Testing the website’s capacity to manage potential faults and exceptions that may arise throughout the integration process is another option. These tests are used to make sure that the website can interface with external systems without any issues and that all data, payment, and transaction exchanges are safe and correct.
* **Product comparison:** For e-commerce websites, product comparison test cases include evaluating the website’s operation and usability of the feature. This can involve evaluating the feature’s usability, accuracy of the information given, and capacity to compare various products. The capacity of the product comparison function to display pertinent details about each product, such as pricing and availability, as well as filter and sort products based on various criteria, can also be tested. It may also test the performance of the product comparison feature under various loads and for compatibility with different devices and browsers. These tests seek to guarantee that users of the website can quickly and accurately compare products.
* **Product recommendations:** For eCommerce websites, test cases for product suggestions include evaluating the website’s accuracy and usefulness of the feature. This can involve evaluating the feature’s usability, accuracy of the information provided, and capacity to produce and present relevant product suggestions to clients. Additionally, it may verify the feature’s compatibility with different devices and browsers as well as its capacity to consider variables like consumer purchase history, surfing patterns, and demographics. These tests are intended to make sure that the website’s overall user experience is improved by the product recommendation function and that it is dependable, accurate, and user-friendly.
* **Wish Lists:** The functionality and usability of the website’s want list feature are among the test cases for desire lists on e-commerce websites. Customers’ abilities to add things to their wish lists, browse and manage their desire lists, and purchase items from the wish lists can all be tested as part of this. The desired list feature’s security and privacy can also be tested, for example, by making sure that only the right client can access their wish list and that wish lists are kept secret. It may also evaluate the wish list feature’s performance under various loads and the compatibility of the functionality with a variety of devices and browsers.
* **Gift cards and store credits:** The functioning and usability of the gift card and store credit features on the website are tested as part of gift cards and store credit test cases for e-commerce websites. Customers’ ability to buy and use gift cards and shop credits, the correctness of the balance and expiration date, and the security of the transactions can all be tested as part of this. Additionally, it may test a customer’s ability to use more than one gift card or shop credit for a single purchase as well as their ability to check the balance of their gift cards or store credits. Additionally, it may involve testing the feature performance under various loads as well as its compatibility with a range of devices and browsers.
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* **Affiliate and referral programs:** The usability and functionality of the affiliate and referral programme components on the website are tested in affiliate and referral programs test cases for e-commerce websites. This can involve evaluating the program’s sign-up process for customers, tracking referral and affiliate links, and verifying the precision of commission and payout computations. It may also entail testing the program’s security and privacy, such as making sure that only authorized users have access to the program’s data and that private data is maintained. Additionally, it may involve testing the performance under various loads as well as its compatibility with a range of devices and browsers.
* **Returns and exchanges:** The functionality and usability of the website’s returns and exchanges process are tested as part of returns and exchanges test cases for e-commerce websites. This may involve assessing the customer’s ability to start a return or exchange, the precision of the refund or exchange computations, and the process’s usability. It can also involve evaluating the process’s security and privacy, such as making sure that only authorized individuals have access to the data on returns and exchanges and that personal data is kept private. Additionally, it may involve testing the performance under various loads as well as its compatibility with a range of devices and browsers.
* **Fraud detection and prevention:** For e-commerce websites, fraud detection and prevention test cases involve evaluating the website’s capacity to identify and stop fraudulent activity. This may involve evaluating the efficacy of fraud detection algorithms, the veracity of fraud warnings and notifications, and the capability of the website to restrict or flag questionable transactions. Additionally, it may assess the website’s payment gateway’s security as well as its capacity to identify and stop fraud and other types of fraud. Additionally, it may involve testing the performance under various loads as well as its compatibility with a range of devices and browsers. These tests check the accuracy, security, and effectiveness of the website’s fraud detection and prevention methods to make sure they don’t obstruct legal transactions.
* **Social media integration:** For e-commerce websites, social media integration test cases include evaluating the usability and functionality of the website’s integration with social media platforms. The capacity to share things on social media, the use of social media accounts to log in, and the veracity of information provided on social media are all examples of this. It may also entail evaluating the social media integration’s security, such as making sure that private information is kept secret and that only people with permission can access shared data. Additionally, it may involve testing the performance under various loads as well as its compatibility with a range of devices and browsers.
* **Search engine marketing:** The efficacy of the website’s paid search campaigns is one of the SEM test cases for e-commerce websites. Testing the website’s landing pages, ad wording, targeting, conversion rate, and return on investment (ROI) of the campaigns can all fall under this category. Additionally, it may involve evaluating the website’s capacity to monitor and assess the effectiveness of the campaigns as well as the feature’s suitability for use across a range of platforms and browsers. These tests aim to validate the efficacy, efficiency, alignment with the overall marketing plan, and ROI of the SEM activities on the website.
* **A/B testing:** A/B testing test cases for e-commerce websites involve comparing the performance of various iterations of the website’s design, layout, content, and functionality. This can include experimenting with various headlines, graphics, calls to action, and layouts, as well as testing the website’s capacity to monitor and evaluate the results of the tests and the viability of implementing the best one. Additionally, it may involve testing the performances under various loads and its compatibility with multiple devices and browsers. These tests are intended to ensure that the website is continually optimized for better conversion and usability and that its components suit the target audience.
* **Multi-language support:** The capacity of eCommerce websites to support many languages is one of the test cases for multi-language support. This can involve evaluating the website’s language switching functionality as well as the precision of the translations and the user-friendliness of the language switching feature. Testing the feature’s compatibility with various hardware and browsers, as well as the website’s capability to handle different character sets and text directions, can also be included. It may also involve evaluating the feature’s performance under various loads. These tests are designed to make sure that the website can support many languages and that the language barrier won’t affect the user experience.
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* **Product inventory management:** Testing the functionality of adding, updating, and removing products from the website’s inventory as well as making sure that customers see appropriate inventory levels are all part of product inventory management test cases for e-commerce websites. The appropriate operation of any inventory management tools, such as low stock warnings, backordering, and bulk inventory updates, is also tested here. It’s also critical to verify that the website’s order management and fulfillment procedures accurately reflect any inventory modifications.
* **Email and SMS notifications:** For e-commerce websites, email and SMS notifications test cases include evaluating the usability and functioning of the website’s email and SMS alerts. This can involve checking the veracity of the data transmitted, having the alerts customized, and being able to monitor and evaluate the performance of the notifications. It may also entail evaluating the notifications’ security and privacy, such as making sure that only authorized individuals have access to the notifications’ data and that sensitive information is kept that way. Additionally, it may involve testing the performance under various loads as well as its compatibility with a range of devices and browsers.
* **Multi-currency support:** For e-commerce websites, multi-currency support test cases involve examining how well the website can manage different currencies. This involves evaluating the display of the appropriate currency based on the customer’s location, the accurate conversion of prices when a client switches currencies, and the accuracy of all financial transactions in the selected currency. Additionally, it involves evaluating the proper operation of any currency converter and the accurate presentation of currencies on all sites, including the checkout, shopping cart, and order confirmation pages. The functionality of any currency-related aspects, including pricing, taxes, and shipping rates that are specific to a given currency, must also be tested..
* **Multi-vendor support:** E-commerce websites capacity to accommodate numerous suppliers or sellers is one of the multi-vendor support test cases. This may include evaluating the website’s capacity to control various vendors or sellers, the integrity of their product information, and the safety of their financial transactions. Testing can also be done to see how well the website handles different suppliers’ and sellers’ shipping, tax, and return policies and how well the feature works with various browser combinations. It may also involve evaluating the performances of the different features under different loads. These tests are designed to ensure that the website can accommodate numerous vendors or sellers and that the features and capabilities of the vendors or sellers will not adversely affect the user experience.
* **Order management:** An eCommerce website’s order management test cases involve testing different aspects of the ordering process, including adding products to the cart and determining the total, the checkout process to make sure that all necessary data is captured, order confirmation, payment processing, and order tracking. The ability to cancel and refund an order is also tested. The test cases guarantee that the process is operating properly and giving the end user a flawless experience.
* **Search and filter functionality:** An e-commerce website’s search bar and filter options are put through a series of tests to make sure they function properly and produce accurate results. Testing the search box for proper spelling and language, the filter choices for proper categorization and sorting, and the search results for relevance and accuracy are a few examples of what you might do. The test cases make sure that users can quickly and effectively find the products they’re looking for.
* **Product ratings and reviews:** An eCommerce website’s test cases for product ratings and reviews involve evaluating the system’s functionality. This involves evaluating the performance of the sorting and filtering choices based on ratings and reviews, the ability for users to leave ratings and reviews, and the display of the ratings and reviews. It would also evaluate any moderation features that could be present and ensure that reviews are authentic and not manipulated. The test cases make sure that the rating and review system is operating properly and giving both customers and the e-commerce website useful feedback.
* **Customer account management:** Creating, modifying, and deleting customer accounts, logging in and out, and changing passwords are all functions of customer account management test cases for an e-commerce website. The functionality of customer data, such as saved shipping and invoicing details, order histories, and wishlists, is also tested. Additionally, it would involve evaluating the security and privacy of client data and guaranteeing the confidentiality and safety of the customer’s personal information. These test scenarios guarantee that the customer account management system is operationally sound and offers clients a safe and convenient experience.
* **Website scalability:** The ability of an eCommerce website to manage several concurrent users and transactions is tested as part of its scalability test cases. This involves evaluating how well the website performs when it is under a lot of demand, how many users it can support concurrently, and how well it can scale up and down as necessary. Additionally, it would involve testing the website’s capacity for handling heavy traffic, its stability and response speed, and its capacity for failure recovery. These test cases guarantee that the website can manage the anticipated traffic and continue to function at its peak even during busy times.
* **Subscription-based products:** The functionality of the subscription system is tested in test cases for products with subscription models on e-commerce websites. Customers’ ability to sign up for subscriptions, their ability to manage those subscriptions — including the ability to cancel, pause, and resume them — as well as the operation of the subscription management system are all tested in this process. It would also evaluate the customer’s flexibility in changing the subscription’s frequency and its list of products. These test cases make sure that the subscription system is operating properly and offering clients a seamless experience.
* **Personalization and recommendations:** Personalization and recommendations test cases for an eCommerce website include evaluating the website’s ability to personalize the user experience and provide relevant product recommendations. This includes testing the website’s ability to track user behavior, testing the accuracy of the personalization and recommendation algorithms, and testing the website’s ability to provide personalized content and recommendations in various areas of the site. It would also include testing the website’s ability to learn from user feedback and adapt personalization and recommendations accordingly. These test cases ensure that the website provides a personalized and relevant experience for users, thereby increasing their overall engagement with the e-commerce platform.
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* **Gift wrapping and gift messages:** eCommerce gift wrapping and gift message test cases involve evaluating the functionality of the gift wrapping and gift message options. This includes ensuring that users can select gift wrapping and gift messages during the checkout process, that gift wrapping and gift messages are correctly applied to the order, and that gift wrapping and gift messages are correctly displayed on the invoice and packaging. It would also include testing the functionality of the gift card or e-gift card as well as its integration with the checkout process. These test cases ensure that the gift wrapping and gift message options are working properly and that customers sending gifts have a convenient and thoughtful experience.
* **Multi-step checkout:** eCommerce multi-step checkout test cases involve testing the functionality of the multi-step checkout process. This includes ensuring that users can navigate through the various steps of the checkout process, that the information entered in each step is saved and retained, that the checkout process includes all necessary steps and fields, and that the checkout process is intuitive and user-friendly. It would also include testing the functionality of various payment options as well as their integration with the checkout process. These test cases ensure that the multi-step checkout process is functioning properly and that customers have a smooth and efficient purchasing experience.
* **Order tracking:** eCommerce order tracking test cases involve testing the functionality of the order tracking system. This includes testing the ability of users to track their orders through the fulfillment process, ensuring that the order tracking information is accurate and up to date, ensuring that the order tracking system provides detailed information about the order, and ensuring that the order tracking system is user-friendly. It would also include testing the order tracking system’s integration with the delivery or shipping provider, as well as testing the notifications and alert system for tracking updates. These test cases ensure that the order tracking system is functioning properly and that customers are receiving accurate and useful information about the status of their orders.
* **International shipping**: eCommerce international shipping test cases involve testing the functionality of international shipping options. This includes ensuring that users can choose international shipping during the checkout process, that international shipping rates are calculated correctly, that international shipping options are available for all eligible countries and regions, that customs and import taxes are calculated and applied correctly, and that international shipping tracking information is accurate and up to date. It would also include testing the international shipping compliance with the regulations of the countries to which the e-commerce platform is shipping. These test cases ensure that the international shipping options are working properly and that customers who want to buy from a different country receive accurate and convenient service.
* **Mobile optimization:** eCommerce mobile optimization test cases involve testing the functionality of the website on various mobile devices and browsers. This includes testing the layout and design of the website on different screen sizes, the functionality and usability of the website on different mobile devices, the performance of the website on different mobile networks, and the compatibility of the website with different mobile browsers. It would also include testing the website’s ability to adapt to different mobile platforms, such as iOS and Android, as well as testing the website’s ability to provide a consistent experience across multiple mobile devices. These test cases ensure that the website is optimized for mobile devices and that mobile users have an optimal user experience.
* **Product upselling and cross-selling:** Product upselling and cross-selling eCommerce test cases involve evaluating the functionality of the product upselling and cross-selling feature. This includes testing the website’s ability to recommend relevant and complementary products to customers, ensuring that the products recommended are consistent with the customer’s search and purchase history, ensuring that product recommendations are displayed correctly, and ensuring that the upselling and cross-selling feature does not interfere with the user experience. It would also include testing the ability to track the effectiveness of the upselling and cross-selling features and adjust recommendations as needed. These test cases ensure that the product upselling and cross-selling feature is functioning properly and providing customers with relevant and valuable suggestions.
* **Customizable products:** E-commerce customizable product test cases involve evaluating the functionality of the customizable products feature. This includes ensuring that users can customize products, that customization options are displayed correctly, that customized products are saved and retained, that customized products are displayed correctly in the shopping cart and during checkout, and that customized products are manufactured and delivered correctly. It would also include testing the functionality of the customization tools and ensuring that the customization options comply with the laws and regulations of the country where the e-commerce platform is operating. These test cases ensure that the customizable products feature is functioning properly, providing customers with a unique and personalized experience.
* **Product bundles: **eCommerce product bundles test cases involve testing the functionality of the product bundle feature. This includes ensuring that users can buy multiple products as a bundle, that the bundle price is calculated correctly, that the bundle products are displayed correctly, that the bundle products are delivered together, and that the bundle products are consistent with the customer’s purchase history. It would also include testing the capability of tracking the effectiveness of the product bundle feature and adjusting the bundle options accordingly. These test cases ensure that the product bundle feature is functioning properly and providing customers with a convenient and cost-effective experience.
* **Virtual and digital products:** The objective of this test case is to verify that users can purchase virtual and digital products so that digital products are delivered correctly and virtual products are available for access and use. The functionality of the virtual and digital products feature is tested in virtual and also in digital product test cases on eCommerce, ensuring that users can purchase virtual and digital products, that digital products are delivered correctly and virtual items are available for access and use. Furthermore, testing compliance with laws and regulation of the country where the e-commerce platform operates is critical as it could lead to unauthorized access or damage if not respected by app developers.
* **Affiliate program:** eCommerce affiliate programme test cases involve testing the functionality of the affiliate programme feature. This includes ensuring that users can join the affiliate programme, that affiliate links are generated correctly, that affiliate commissions are calculated and paid correctly, that the affiliate programme is integrated with the eCommerce platform, and that the affiliate programme is consistent with the customer’s purchase history. It would also include testing the ability to track the effectiveness of the affiliate programme and adjust programme options as needed. These test cases ensure that the affiliate programme feature is functioning properly and providing affiliates with an efficient and profitable experience.
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* **Multi-step registration:** eCommerce multi-step registration test cases involve evaluating the functionality of the multi-step registration process. This includes ensuring that users can navigate through the various steps of the registration process, that the information entered in each step is saved and retained, that the registration process includes all necessary steps and fields, and that the registration process is intuitive and user-friendly. It would also include testing the functionality and integration of various registration options, such as social media login or two-factor authentication, with the registration process. These test cases ensure that the multi-step registration process is working properly and that customers have a seamless and secure registration experience.
* **Wishlist and gift registry:** Wishlist and gift registry eCommerce test cases involve ensuring that users can create a list of items they want or would like to receive as gifts and that the list can be shared with others. This includes putting the ability to add and remove items, change quantities, and mark items as purchased to the test. Furthermore, tests should ensure that privacy and security settings are properly implemented, and that the user can easily search and share the wish list or registry. Overall, the goal of these test cases is to ensure that the wishlist and gift registry features are easy to use and dependable for customers.
* **Live chat and support:** eCommerce live chat and support test cases involve testing the functionality of providing customer service and support via a website’s live chat feature. This includes ensuring that customers can initiate a chat, that the chat is routed to the appropriate agent or department, and that chat transcripts are saved and accessible. Furthermore, tests should ensure that the chat feature is available during appropriate hours, that response times are within acceptable limits, and that all customer inquiries are handled and resolved properly. Overall, the goal of these test cases is to ensure that the live chat and support feature provides online shoppers with an efficient and effective means of customer service.
* **Abandoned cart recovery:** The functionality of recovering abandoned shopping carts via email or other forms of communication is tested in abandoned cart recovery test cases for eCommerce. This includes testing the ability to send abandoned cart recovery emails or messages, personalize the content of the recovery message, and track the recovery campaign’s success rate. Furthermore, tests should ensure that the recovery message is sent at the correct time, that it is delivered to the correct email address or mobile number, and that the links in the recovery message work. Overall, the goal of these test cases is to ensure that the abandoned cart recovery feature is effective in re-engaging potential customers who have abandoned their carts and increasing conversion rates.
* **Multilingual customer support:** The functionality of providing customer service and support in multiple languages is tested in multilingual customer support test cases for eCommerce. This includes testing the ability to switch between languages, route chat or support to an agent or department that speaks the language, and save and access chat transcripts or support tickets in the selected language. Furthermore, tests should ensure that the multilingual support feature is available during appropriate hours, that the translation is correct, and that all customer inquiries are handled and resolved in the chosen language.
## How LambdaTest Can Help With eCommerce Test Cases
LambdaTest, a cloud-based [cross-browser testing](https://www.lambdatest.com/intl/en-in?utm_source=devto&utm_medium=organic&utm_campaign=apr_23&utm_term=bw&utm_content=webpage) and web performance monitoring platform, helps companies in the eCommerce space to accelerate product development, get quality user experience and increase conversion rate.
LambdaTest makes it easy for you to test your websites and web applications. With its comprehensive platform, LambdaTest helps identify and fix any issues that might be affecting the user experience. It provides end-to-end test automation for mobile and web applications as well. This can be used by businesses looking to test their website or app across different browsers, operating systems and devices.
It can help in the following ways:
* Cross-browser compatibility testing: LambdaTest allows you to test your website on various browsers and operating systems, including mobile browsers, to ensure that it is compatible and functional across multiple platforms.
* Real-time testing: LambdaTest offers [real-time testing](https://www.lambdatest.com/support/docs/real-time-browser-testing/?utm_source=devto&utm_medium=organic&utm_campaign=apr_23&utm_term=bw&utm_content=support_doc), allowing you to see how your website performs across different browsers and operating systems, making it easier to identify and resolve issues.
* Automation testing: LambdaTest has an [automation testing](https://www.lambdatest.com/blog/automation-testing-tools/?utm_source=devto&utm_medium=organic&utm_campaign=apr_23&utm_term=bw&utm_content=blog) feature that allows you to automate your test cases and run them across multiple browsers and operating systems, saving you time and effort.
* Live interactive testing: LambdaTest also includes a live interactive testing feature that allows you to test your website on a real browser like a real user, which can help you understand how your website performs in real-world conditions.
* Apart from eCommerce, LambdaTest supports all major domains such as retail, finance, [insurance](https://www.lambdatest.com/learning-hub/insurance-domain-testing-test-cases?utm_source=devto&utm_medium=organic&utm_campaign=apr_23&utm_term=bw&utm_content=learning_hub), and many others.
{% youtube aR3JIXKBzAE %}
## Conclusion
Finally, eCommerce test cases are critical in ensuring that an online store is functional and user-friendly for customers. These test cases cover a variety of eCommerce website features, including the wishlist and gift registry, live chat and support, abandoned cart recovery, and multilingual customer support.
Developers can ensure that these features work properly and that customers can easily navigate and use the website by testing them. Furthermore, by testing these features, developers can identify and resolve any issues or bugs before the website is made public. Overall, thorough eCommerce test cases are critical for the success of an online store because they help ensure that customers have a positive shopping experience.
**Happy Testing!!!**
| devanshbhardwaj13 |
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Safety stands as a paramount concern within any industrial milieu. Inexpensive, subpar tools pose substantial safety hazards, potentially precipitating accidents and injuries. Conversely, premium tools are imbued with safety-centric features, mitigating risks and safeguarding personnel.
## Precision and Accuracy:
The exigencies of industrial endeavors often mandate precision and accuracy. Superior tools are engineered to furnish consistent performance, empowering operators to achieve meticulous outcomes consistently. This assumes paramount importance in industries where even minor deviations can yield consequential
ramifications.
## Mitigated Downtime:
Downtime represents a formidable impediment to productivity. Inexpensive, unreliable tools are susceptible to malfunctions and breakdowns, thereby engendering costly downtime. Conversely, premium tools boast heightened reliability, minimizing the likelihood of failures and ensuring uninterrupted operations.
##
Cultivated Professional Image:
The utilization of superior tools not only augments operational efficiency but also burnishes the professional persona of a business entity. It bespeaks a steadfast commitment to quality and excellence, instilling confidence amongst clientele and stakeholders alike.
## Adherence to Standards:
Across myriad industries, adherence to regulatory standards is imperative. Premium tools are predisposed to meet or surpass these standards, thereby ensuring compliance and circumventing punitive repercussions such as fines or penalties.
In summation, the merits of integrating high-quality [industrial tools](https://www.durantco.com/blog/top-10-industrial-tools/
) are manifest. Durant espouses the imperative of investing in tools of discernible quality, which not only optimize efficiency and ensure safety but also underpin overarching operational efficacy. By electing to procure top-tier industrial tool supplies, one is not merely acquiring equipment but also investing in the prosperity and enduring viability of their enterprise.
| durantcousa | |
1,870,289 | Socket-IO for Beginners | Socket-IO: Socket.IO is an open-source, cross-platform library that provides full-duplex... | 0 | 2024-05-30T10:41:59 | https://dev.to/jemmyasjd/socket-io-for-beginners-2i9b | node, webdev, tutorial, socketio |
- **Socket-IO:** Socket.IO is an open-source, cross-platform library that provides full-duplex bidirectional communication between a client and a server based on events.
**Why Socket-IO is needed?**
- **Traditional Client-Server Model**
In the traditional client-server architecture, the communication follows a request-response pattern. The client sends a request to the server, and the server processes this request and sends back a response. After this exchange, the connection is closed. This model has a significant limitation: the server cannot initiate communication with the client. If the server needs to send additional data or updates to the client, it has no way to do so without the client first making a request.
- **Example:** Consider a chat application built using the traditional model. When a user (client) sends a message, it goes to the server. The message is then stored on the server, waiting for the recipient (another client) to request it. The recipient will only receive the message when they make a new request to the server. This creates a delay in message delivery, as shown below:
- One way to address this issue is through **Polling**. Polling involves clients making periodic requests to the server at fixed intervals to check for new data. While this ensures that clients eventually receive updates, it introduces significant latency and connection overhead. Constantly opening and closing connections for each request consumes resources and can lead to delays, especially under heavy load.
- Thus to overcome these limitations, WebSockets were introduced.
- Web Socket : WebSocket is a computer communications protocol, providing a simultaneous two-way communication channel over a single Transmission Control Protocol (TCP) connection.
**How Web-socket actually works??**
- During the initial connection setup, the HTTP header includes an Upgrade field, which facilitates the transition from an HTTP connection to a WebSocket connection.
- **Upgrade**: The HTTP 1.1 (only) Upgrade header can be used to upgrade an already established client/server connection to a different protocol (over the same transport protocol). For example, it can be used by a client to upgrade a connection from HTTP 1.1 to HTTP 2.0, or an HTTP or HTTPS connection into a WebSocket.
- Thus doing this the WebSocket connection is established and now the connection will work in full duplex mode and in order to make the web socket implementation easy there is library called **socketio**.
- Socket.IO builds on WebSockets and provides a more robust, scalable solution for real-time communication. It supports bidirectional, event-based communication, allowing both the client and server to send and receive messages instantly. Socket.IO also includes fallback mechanisms, ensuring reliable communication even if WebSockets are not supported.
- By using Socket.IO, we can create real-time applications like chat systems where messages are instantly delivered to all connected clients without the need for repeated requests.
## <u>Let us make a basic chat app using Node and Html</u>
- index.js :
```
const express = require('express');
const http = require('http');
const port = 3000;
const path = require('path');
const {Server} = require('socket.io');
const app = express();
const server = http.createServer(app);
const io = new Server(server);
io.on('connection', (socket) => {
socket.on('user-message', (msg) => {
io.emit('message', msg);
}
);
});
app.use(express.static(path.join(__dirname, 'public')));
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname, 'public', 'index.html'));
});
server.listen(port, () => {
console.log(`Server is running on port ${port}`);
});
```
- index.html
```
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Chat App</title>
</head>
<body>
<h1>Chatting</h1>
<div>
<input type="text" id="message" placeholder="Enter Message" />
<button id="sendBtn">Send</button>
</div>
<div id="messages"></div>
<script src="/socket.io/socket.io.js"></script>
<script>
const socket = io();
const sendBtn = document.getElementById("sendBtn");
const messageInput = document.getElementById("message");
const allMessages = document.getElementById("messages");
socket.on("message", (message) => {
const p = document.createElement("p");
p.innerText = message;
allMessages.appendChild(p);
});
sendBtn.addEventListener("click", (e) => {
const message = messageInput.value;
console.log(message);
socket.emit("user-message", message);
messageInput.value = ''; // Clear the input field after sending
});
</script>
</body>
</html>
```
- You can get the complete code [here](https://github.com/jemmyasjd/SocketIO)
- After running the code you may get the connection details by doing inspect to the network section as shown below where you can see the header contains the connection to upgrade and the upgrade field contains the websocket.
- Code explanation :
- Server Setup:
The server listens for new client connections using `io.on('connection')`.
When a new client connects, the server sets up custom event listeners on the client's socket using `socket.on`.
- Client-Side Events:
Clients send events to the server using `socket.emit`. For instance, when a user sends a chat message, the client emits a 'user-message' event to the server.
- Server Handling and Broadcasting:
The server receives the event using `socket.on('user-message')` and processes the data (e.g., the chat message).
The server can then broadcast this message to all connected clients using `io.emit('message', msg)`, ensuring that every client receives the new chat message instantly.
- Code Output:
## <u>Conclusion</u>
In summary, Socket.IO provides a solution for real-time, bidirectional communication between clients and servers, overcoming the limitations of traditional client-server models. By leveraging WebSocket technology, Socket.IO facilitates instant message delivery without the need for constant polling, reducing latency and connection overhead. Through a simple example of building a chat app with Node.js and HTML, it demonstrated how Socket.IO enables seamless real-time communication. Its ease of use, flexibility, and robustness make it an invaluable tool for developers looking to build dynamic web applications with interactive features.
| jemmyasjd |
1,870,287 | Harness the Benefits of Azure Digital Twins To Deliver Unmatched Business Value | Think about creating a virtual clone of your whole business operations. A digital mirror that... | 0 | 2024-05-30T10:40:34 | https://dev.to/dhruvil_joshi14/harness-the-benefits-of-azure-digital-twins-to-deliver-unmatched-business-value-3gln | azure, digitaltwins, azureintegration | Think about creating a virtual clone of your whole business operations. A digital mirror that reflects every feature, process, and asset with precise accuracy. Does this sound too good to be true? That is exactly what Azure Digital Twins delivers. It generates a complete digital representation of your physical locations, assets, and processes. So buckle in and get ready to take on a journey that will alter how you perceive and interact with the real world. Azure Digital Twins has arrived and is ready, so let's move on to the general concept and benefits of Azure Digital Twins.
## What is Azure Digital Twins?
It allows businesses to create digital representations of physical environments. These digital twins are virtual replicas that mirror the state, properties, and relationships of their real-world counterparts. By leveraging advanced technologies like the Internet of Things (IoT), artificial intelligence (AI), and data analytics, [Azure Digital Twins](https://www.bacancytechnology.com/blog/azure-digital-twins) provides a comprehensive view of complex physical systems, enabling companies to monitor, analyze, and optimize their operations in real-time.
## Benefits of Azure Digital Twins
It provides a lot of advantages. Let's explore the benefits of Azure Digital Twins.
### Improved Operational Efficiency
One of the most important benefits of Azure Digital Twins is the ability to improve operational efficiency. Businesses that create virtual replicas of physical assets and processes can obtain important insights into their operations, uncover obstacles, and deploy improved workflows. With real-time data presentation and evaluation, you can make more informed decisions, improve resource allocation, and reduce downtime, enhancing productivity and profitability.
### Predictive Maintenance and Asset Management
Maintaining physical assets can be costly and time-consuming. Azure Digital Twins revolutionizes asset management by enabling predictive maintenance strategies. Companies can prevent major problems by regularly monitoring the state and performance of assets inside the digital twin ecosystem. This predictive technique enables prompt maintenance interventions, reducing unexpected breakdowns and extending crucial assets' lives.
### Enhanced Customer Experience
In industries where customer experience is paramount, Azure Digital Twins offers a unique opportunity to create immersive and personalized experiences. For example, in the retail sector, digital twins can be used to simulate store layouts, traffic patterns, and customer behavior, enabling businesses to optimize store design, product placement, and marketing strategies. Similarly, in the real estate industry, potential buyers can explore virtual replicas of properties, visualize interior designs, and make informed decisions before committing to a purchase.
### Simulation and Testing Capabilities
Before implementing changes in the physical world, businesses can leverage the power of Azure Digital Twins to simulate and test various scenarios within the digital environment. This capability minimizes risks, reduces costs, and accelerates innovation cycles. Whether testing new manufacturing processes, optimizing supply chain logistics, or exploring urban planning initiatives, digital twins provide a safe and cost-effective sandbox for experimentation and validation.
### Integration with Existing Systems
Azure Digital Twins seamlessly integrates with a wide range of existing systems and technologies, making it a versatile and scalable solution for businesses of all sizes. Whether you're working with IoT devices, enterprise resource planning (ERP) systems, building management systems (BMS), or other platforms, [Azure Digital Twin integrations](https://dev.to/nicholajones075/enhance-insights-with-azure-digital-twin-integrations-into-azure-services-3jec) can act as a centralized hub, facilitating data exchange and enabling a holistic view of your operations.
### Cost Savings and Sustainability
Last on the list of benefits of Azure Digital Twins is cost saving and sustainability. It has the potential to significantly reduce company costs by improving processes, decreasing waste, and allowing predictive maintenance. Furthermore, the capacity to model and test situations in a virtual environment reduces the need for actual prototypes, which saves resources and promotes sustainability. As businesses strive to reduce their environmental footprint, Azure Digital Twins offers a powerful tool for sustainable operations and responsible decision-making.
## Real-World Use Cases
Azure Digital Twins has already demonstrated its transformative potential across various industries. For example:
**Manufacturing:** Digital twins of manufacturing processes enable continuous tracking, predictive maintenance, and process optimization, resulting in enhanced productivity and less downtime.
**Smart Cities:** By creating digital replicas of urban environments, city planners can simulate traffic patterns, optimize infrastructure development, and enhance public services.
**Energy and Utilities:** Digital twins of power grids, water distribution systems, and renewable energy farms enable efficient resource management and proactive maintenance.
**Healthcare:** Virtual replicas of hospital facilities and equipment can streamline operations, improve patient experiences, and facilitate staff training.
## Getting Started with Azure Digital Twins
Implementing Azure Digital Twins in your company may seem challenging. Still, [Azure consulting services](https://www.bacancytechnology.com/azure-consulting-services) can help you access the tools and guidance necessary to successfully adopt and leverage this cutting-edge technology.
## Conclusion
At the end of the day, Azure Digital Twins is an amazing innovation that has the potential to revolutionize how businesses operate. This cutting-edge technology creates a virtual mirror of the real world, empowering businesses to unlock a world of possibilities. The benefits of Azure Digital Twins are numerous. The best part? Getting started with Azure Digital Twins is easier than you might think. Microsoft offers a wealth of resources and a global community of experts ready to guide you every step of the way.
| dhruvil_joshi14 |
1,870,286 | How To Find A Legit Blockchain Development Company In Dubai | Blockchain technology has revolutionized various industries, offering secure and transparent... | 0 | 2024-05-30T10:38:23 | https://dev.to/kemmylinns12/how-to-find-a-legit-blockchain-development-company-in-dubai-18o6 | Blockchain technology has revolutionized various industries, offering secure and transparent solutions for transactions and data management. As businesses in Dubai seek to leverage this technology, the demand for reputable blockchain company in dubai has surged. Finding a legitimate [blockchain company in Dubai](https://blocktunix.com/dubai-blockchain-development-company/) is crucial for ensuring successful project implementation. This article provides a comprehensive guide on how to identify and select a trustworthy blockchain development partner.
Why Dubai is a Hub for Blockchain Development?
Dubai has positioned itself as a global leader in blockchain technology. The government's proactive approach, favorable regulatory environment, and strong emphasis on innovation make it an ideal location for blockchain development. Initiatives like the Dubai Blockchain Strategy aim to make Dubai the first city fully powered by blockchain by 2020, attracting numerous companies and talents to the region.
Understanding Blockchain Technology
Definition and Basics
Blockchain is a decentralized digital ledger that records transactions across multiple computers in a way that ensures the data's security and integrity. Each block in the chain contains a list of transactions, and once a block is added, it cannot be altered without altering all subsequent blocks, making the system highly secure against tampering.
Applications of Blockchain
Blockchain technology extends beyond cryptocurrencies like Bitcoin. It has applications in various sectors, including finance, healthcare, supply chain management, real estate, and more. Its ability to provide transparent and immutable records makes it a valuable tool for numerous industries.
Importance of Choosing the Right Blockchain Development Company
Selecting the right blockchain development company is critical for the success of your project. A reputable company will provide the necessary expertise, ensure the security of your blockchain application, and deliver a product that meets your business needs.
Key Criteria for Evaluating Blockchain Development Companies
Experience and Expertise
Look for companies with a proven track record in blockchain development. Experienced companies will have a portfolio of successful projects and a team of skilled developers.
Technical Proficiency
Ensure the company has expertise in the specific blockchain technologies and platforms relevant to your project, such as Ethereum, Hyperledger, or EOS.
Client Testimonials and Reviews
Client feedback can provide valuable insights into a company's reliability and quality of work. Look for testimonials on the company's website and reviews on third-party platforms.
Security Measures
Security is paramount in blockchain development. Ensure the company follows best practices for securing blockchain applications and has experience in implementing robust security measures.
Compliance and Regulatory Knowledge
A good blockchain development company should be well-versed in the regulatory landscape of Dubai and ensure that your project complies with all relevant laws and regulations.
Cost and Value
While cost is an important factor, it should not be the sole deciding factor. Evaluate the value the company provides in terms of expertise, quality, and support.
Also Read- [Detailed Guide On Blockchain App Development – Cost, Benefits & Processes](https://blocktunix.com/blockchain-app-development-cost/)
Steps to Find a Legit Blockchain Development Company in Dubai
Research and Shortlist
Start by researching potential companies online. Look for companies with a strong online presence, detailed case studies, and positive client reviews.
Evaluate Portfolios
Examine the portfolios of shortlisted companies to assess their experience and expertise. Look for projects similar to yours in complexity and scope.
Conduct Interviews
Interview potential companies to gauge their understanding of your project, technical proficiency, and communication skills.
Check References
Ask for references from previous clients and follow up with them to get a first-hand account of their experience with the company.
Assess Proposals
Request detailed proposals from the shortlisted companies, outlining their approach, timelines, costs, and deliverables.
Make a Decision
Evaluate the proposals based on the criteria discussed and select the company that offers the best value and alignment with your project goals.
Conclusion
Finding a legit [blockchain development company in dubai](https://blocktunix.com/dubai-blockchain-development-company/) requires thorough research and evaluation. By considering factors such as experience, technical proficiency, client testimonials, security measures, and compliance knowledge, you can identify a trustworthy partner to bring your blockchain project to fruition. Dubai's thriving blockchain ecosystem and supportive regulatory environment make it an ideal location to embark on your blockchain journey. | kemmylinns12 | |
1,870,285 | test | test | 0 | 2024-05-30T10:38:06 | https://dev.to/priyanka_mishra_6f0afc422/test-3l56 | test | priyanka_mishra_6f0afc422 | |
1,870,284 | test | test | 0 | 2024-05-30T10:37:59 | https://dev.to/priyanka_mishra_6f0afc422/test-nkb | test | priyanka_mishra_6f0afc422 | |
1,870,209 | What is Continuous Testing: An Ultimate Guide With Examples | Continuous testing is the software testing process of continuously ensuring the quality of the... | 0 | 2024-05-30T10:15:26 | https://dev.to/devanshbhardwaj13/what-is-continuous-testing-an-ultimate-guide-with-examples-42d1 | testing, softwaredevelopment, softwareengineering, programming | Continuous testing is the software testing process of continuously ensuring the quality of the product at every stage of development. An integrated part of continuous integration and continuous deployment (CI/CD) process, continuous testing methodology enables early detection of issues, reduces developer feedback times, improves visibility of product quality, and accelerates goto market.
In older development models like waterfall, developers were siloed into separate teams focused on specific tasks. This led to a hand-off approach, where one team would finish its tasks and pass the software to another group. Quality was emphasized because each team had time to focus on its task without worrying about other aspects of the project.
With demand increasing for faster development speeds, this older model proved problematic. A newer development model evolved to address the demand for increased development velocity. Organizations continuously introduce incremental activities in this model to ensure greater customer satisfaction.
Today, most organizations have adopted DevOps, which uses an environment of collaboration and shared responsibility. This shift from older practices has enabled teams to embrace [automation testing](https://www.lambdatest.com/automation-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) and continuous activities such as continuous testing.
> Learn what an [iOS mobile device](https://www.lambdatest.com/software-testing-questions/what-is-an-ios-device?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) is and how it impacts your testing.
## What is Continuous Testing?
Continuous testing is a vital part of the software delivery pipeline that provides feedback on business risks as soon as possible before releasing a new product. It provides organizations with a more automated and secure way to ensure that applications remain secure and effective in a complex, fast-paced environment.
Traditional testing methods involve a project handed off between teams, with a clearly defined development and quality assurance (QA) phase. The QA team would have ample time to ensure the highest quality, which would mean sacrificing project deadlines.
The market for continuous testing is expected to grow from $1.15 billion in 2018 to $2.41 billion by 2023, representing an annual growth rate of 16%. This indicates a growing need for the timely delivery of high-quality software.
Today’s businesses, however, require faster development and delivery of software to end users. The new software is more marketable than older versions and, therefore, more likely to offer companies an opportunity for improved revenues. In a continuous DevOps process, a release candidate (software change) continually moves from development to testing to deployment.
Continuous testing requires collaboration between many stakeholders, including the development team, DevOps staff, QA personnel and technical support staff.
Learn out how to implement [continuous testing](https://www.lambdatest.com/blog/how-to-implement-continuous-testing-in-devops-like-a-pro/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) in DevOps like a pro!
> Enhance your testing strategy with [mobile device test](https://www.lambdatest.com/real-device-cloud?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) on real devices.
## How is Continuous Testing Different?
In the past, testing was done by handing off the software from one team to another. The Development phase would end, and then QA would begin. The QA teams always wanted more time and were slow in their testing because they wanted to ensure quality.
Continuous testing refers to a software testing cycle that is continuous or uninterrupted. A software change (release candidate) is delivered, tested, and deployed without interruption in a continuous DevOps process. In other words, software code is developed, tested, and deployed continuously.
As an example, whenever a developer checks in code to a source code repository like Jenkins, automated unit tests are run against it. Builds that fail testing are rejected, and the developers are notified. Builds that pass testing is deployed to performance and quality assurance (QA) servers for parallel exhaustive functional and load testing. If these tests pass, the software is deployed into production.
Continuous Testing is a necessary part of the Continuous Development, Integration and Deployment Cycle.
## Why Continuous Testing is Important — Adoption Drivers
As software has become a key business differentiator in recent years, organizations expect faster delivery of new capabilities. Development teams have turned to lean approaches like [Agile](https://www.lambdatest.com/blog/why-automate-tests-in-an-agile-environment/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) and [DevOps](https://www.lambdatest.com/blog/getting-started-with-devops/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) to meet these demands to shorten delivery cycles. Still, after accelerating other aspects of the delivery pipeline, they often find that their testing process prevents them from achieving the expected benefits of their SDLC acceleration initiative. Here are some of the reasons:
* Agile, DevOps, and Continuous Delivery have brought about a change in the testing process. The old methods of testing, which rely heavily on manual testing and automated GUI tests that require frequent updating, cannot keep pace with these new development cycles. While these more recent approaches to software development can speed up the iteration cycle, many organizations recognize the need to extend their test automation strategies.
* Although the role of automated testing in continuous delivery is important, managers lack adequate insight into the risk level of applications at any given time. To ensure that you are communicating effectively with your business stakeholders about acceptable levels of risk, you must design your tests based on their tolerance for vulnerabilities such as security flaws and performance issues. This can lead to a release candidate who passes all the available tests, but the business leaders would not consider ready for release.
* Without a coordinated [end-to-end testing](https://www.lambdatest.com/learning-hub/end-to-end-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub) quality process, teams will find it difficult to satisfy business expectations within today’s compressed delivery cycles. Defect prevention strategies such as development testing can help ensure quality is built into the product, making it faster and less resource-intensive to remove risks at the end of each iteration.
Organizations adopt [continuous testing](https://www.lambdatest.com/blog/continuous-testing-strategy/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) because they recognize problems caused by their traditional testing approaches. They recognize the growing importance of software and see that they can’t afford to make a tradeoff between time, scope, and quality because of the rising cost of software failure.
## Continuous Testing & Testing Automation
Automated testing increases the speed at which you can perform tasks and provides consistency throughout your testing. It allows developers to focus on more complicated, creative projects and frees up time for testing. It also allows you to do many more tests than you could manually, saving you a lot of time and effort.
On the other hand, Continuous testing is an approach to quality assurance that improves the quality of a product by using feedback to test throughout the development process. This approach can employ many practices and tools, including automation and monitoring. Continuous testing is about veracity, so don’t mistake data for quality just because you have massive amounts of it; you need clean, consolidated, and consistent data to take action to mitigate risk.
> Master [running Appium tests on real devices iOS](https://www.lambdatest.com/blog/how-to-automate-ios-app-using-appium/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) for better results.
## Continuous Testing vs Automated Testing
In the software development world, automated testing and continuous testing are two concepts that people often confuse because they are used so frequently together. However, they have very different roles to play in DevOps and Continuous Delivery.
Both automated testing and continuous testing have a monumental impact on DevOps and Continuous Delivery, but neither is a prerequisite nor post requisite for the other. Regardless of your role, you can choose to perform automated testing or continuous testing on its own.
Check out this table for better understanding:
## Continuous Test-Driven Development
[Test-driven development](https://www.lambdatest.com/blog/tdd-vs-bdd/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) has been used to give programmers rapid feedback on whether the code they write works correctly.
* Functioned properly and
* Unintentionally changed or broke existing functionality. Automated testing is a process that involves running unit tests and acceptance or smoke tests on an application as part of an automated build.
Tests are written before the implementation of a project. Passing these tests proves that the implementation was successful.
Continuous test-driven development (CTDD) is a software development practice that provides the benefits of TDD and allows for the automatic execution of tests, providing testers with continuous feedback on whether their code works.
Along with this, one of the bottlenecks of Test-driven development or TDD was slow developer feedback and overall slow software development rate. To overcome this, continuous Test-driven developement was introduced as it provides faster developer feedback and ensures a fast software development process.
## Continuous Testing, Continuous Integration, Continuous Delivery & DevOps
In a competitive environment, enterprises can no longer afford to prioritize either speed or quality when delivering software. Both are critical to success. Now that organizations have matured in adopting agile practices and DevOps initiatives, for enabling quality at speed, Continuous Integration (CI), Continuous Testing, and Continuous Delivery (CD) have emerged as key catalysts. Among these three, Continuous Testing is by far the most challenging.
Continuous Testing is a cross-functional activity that involves teams of people using tools, individuals using their testing tools, and services such as automated [regression testing](https://www.lambdatest.com/learning-hub/regression-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub) that work in conjunction with the other elements. While Continuous Integration is primarily a tool-driven process, and Continuous Delivery is both tool-driven and team-driven, Continuous Testing relies on a combination of tools, teams, individuals, and services.
While building and integrating code changes are essential to the software development process, the automated delivery process must also identify how these changes impact business risk or disrupt the end-user experience. Otherwise, increased frequency and speed of Continuous Integration and Continuous Delivery can become more of a liability than an asset.
When done correctly, Continuous Testing became the centerpiece of the delivery pipeline. It is essential for controlling business risk given the increased complexity and pace of modern application delivery. Automated tests are part of the software delivery pipeline, providing risk-based feedback as rapidly as possible.
> Achieve comprehensive [mobile device testing](https://www.lambdatest.com/real-device-cloud?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) with LambdaTest.
## How does Continuous Testing Work Within DevOps / DevSecOps?
In this fast-paced development environment, software release cycles are getting shorter, so organizations need to adjust their practices to keep up. DevOps practices and tools should be in place for continuous testing to ensure the product’s quality is high.
DevOps and DevSecOps are based on speeding up all development activities by performing security testing as soon as possible. Continuous testing is critical to speeding up the DevOps pipeline. It allows security testing to be performed early and continuously across all stages of the SDLC, from development to deployment.
By implementing continuous testing, you can ensure that your software releases are of the highest quality and that development moves forward unhindered.
## Benefits of Continuous Testing
Continuous testing involves many benefits to ensure that QAs and testers get the best out of it. Here are some:
## Risk-Based Feedback:
Using continuous testing, you can find bugs in your code and fix them before you ship. Actionable feedback from automated tools makes this possible. This is more effective than manual testing, which is time-intensive and misses essential defects. Risk-based insights from automated tools help you strengthen your coverage of business risk factors by finding as many problems as possible in advance.
Instant feedback helps developers make better design decisions, giving managers all the data they need to assess a release.
> Efficiently [test website on mobile device](https://www.lambdatest.com/test-site-on-mobile?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) with real device cloud.
## Smarter Release Decisions:
The adoption of Agile, DevOps, and Continuous Delivery has shortened the timeline for design, development, and delivery of software updates. These methods allow for regular releases to occur as quickly as every two weeks to thousands of times per day.
Business risk is increasing, and the only way to keep up with the accelerated release schedules of modern software companies is by using automated testing. A thorough understanding of business risk is essential before release candidates are deployed.
Continuous testing using a risk-based feedback approach can help software developers decide when and how to release changes. Companies that rely on automated tools to find opportunities for increasing code quality are finding that more time is spent looking at code complexity than looking for code defects.
## More Efficient Testing:
Continuous testing helps developers and managers determine whether a [shift left testing](https://www.lambdatest.com/blog/continuous-testing-using-shift-left-testing-approach/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) or a shift right is necessary in their delivery pipeline.
End-to-end testing with automated tools helps eliminate false positives and timeouts. Such testing at each stage of software development allows developers to be confident that they’re building a secure, highly-flexible framework.
Software companies can avoid redundancy and save valuable time by continually testing their applications. This ensures that they have the most robust architecture in place for the future expansion of their programs — especially as users demand new features.
## More Stable User Experience:
The most important aspect of continuous testing is to ensure that faulty code doesn’t reach users and disrupt their experience. A balance between delivering new features users want and not disrupting the experience they’ve grown to love must be found.
Because businesses rely on software to communicate with customers, a poor user experience is detrimental to the business’s success. In-depth testing ensures that every element of the user experience is accounted for and preserved, which helps maintain a vendor’s brand and reputation once their software is ready for primetime.
> Ensure your [website test on different devices](https://www.lambdatest.com/test-site-on-mobile?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) is seamless and accurate.
## Integrated Teams:
Continuous testing creates a more efficient development pipeline, ensuring that each team member works together effectively. Modern software development is a collaborative process, and long gone are the days of handing off production-ready code to siloed QA testers.
By integrating quality assurance into all phases of the software development cycle, teams are more aware of each step in the pipeline and better able to deliver high-quality code from the very beginning. Continuous testing ensures that high-quality code is being built from the moment development teams start to code.
Click here to learn the breakdown of [continuous testing](https://www.lambdatest.com/blog/how-to-implement-continuous-testing-in-devops-like-a-pro/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog).
## Methodologies of Continuous Testing
Continuous testing involves a range of tests to ensure the reliability, security, and usability of an application. These tests include:
* **Shift-Left Testing:** By prioritizing software and system testing early in the software development life cycle (SDLC), companies can help reduce or prevent significant debugging problems down the road. Shifting-left is a software testing paradigm that refers to the practice of acting earlier within a process. For example, shifting-left testing means testing your software and moving it to the left in the delivery pipeline — or testing your software earlier in the development lifecycle than is historically typical.
* **Shift-Right Testing:** Shift-right is a software development methodology in which testing, quality control, and performance evaluation are performed by developers closest to the code. Shift-right is the movement toward testing an application in production with real users. This ensures that applications running in production have been tested and that the same high levels of quality are maintained.
* **Smoke Tests:** Smoke testing is a process used to determine whether the software build you have deployed is stable or not. It is a confirmation that the quality assurance (QA) team will proceed with further testing on the build. Smoke testing consists of a minimal set of tests run on each build to test software functionalities. The name “smoke testing” comes from the idea that if a single piece of software works, then it can be assumed that everything else will also work.
* **Unit Testing:** [Unit testing](https://www.lambdatest.com/blog/11-best-unit-testing-frameworks-for-selenium-automation/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) is a software-development process that ensures each component of an application works as expected. By isolating and verifying individual functions, methods, procedures, and objects, unit testing allows developers to find and fix bugs early in the development process.
* **Integration and Messaging Testing:** Integration and messaging tests ensure that all of the software modules, when working together, are error-free. Virtualization of missing dependencies allows teams to test how well the end-to-end processes and scenarios perform collectively. Composite code is used to test whether they perform as expected when compiled and executed at run time.
* **Performance Testing:** When you test application software in a lab that uses different hardware and middleware from what will be used in the final production environment, the results may not accurately predict the solution’s performance. To effectively assess the overall performance of a solution, integrated testing is required.
* **Functional Testing:** [Functional testing](https://www.lambdatest.com/blog/automated-functional-testing-what-it-is-how-it-helps/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) checks whether the software is ready to deliver the customer experience. For example, supply-chain software should be able to alert trucks to arrive at factories when inventory is available for shipping. (In contrast, non-functional testing focuses on performance, usability, and reliability and gauges the readiness of the software.)
* **Regression Testing:** Regression testing enables you to check whether there are any changes in performance, functionality, or dependencies after correcting errors in any dependent software.
## Frameworks Used for Continuous Testing
Continuous testing tools are designed to help you with your testing efforts. They ensure your success by guaranteeing positive results as you phase through the continuous testing process. Although many tools are available for continuous testing, very few are worth pursuing. Some prominent, continuous testing tools include:
## Selenium:
[Selenium](https://www.lambdatest.com/selenium?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) is a software framework that developers with extensive programming skills can use for QA testing. To implement Selenium, it’s vital to understand how frameworks work. In addition, Selenium supports a wide range of popular operating systems (Windows, macOS, Linux) and browsers (Chrome, Firefox, Safari), making it ideal for cross-environment testing.
However, there are several hurdles when Selenium is used in conjunction with other tools in the CI/CD pipeline. The greatest hindrance is finding an infrastructure that supports your desired tools and plugins and allows you to seamlessly run Selenium test scripts at scale.
[Cloud testing](https://www.lambdatest.com/blog/cloud-testing-tutorial/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) ensures that Selenium tests can be run at scale on a secure, scalable Selenium Grid. LambdaTest is such a platform that provides a [scalable cloud Selenium grid ](https://www.lambdatest.com/automation-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage)that lets you run Selenium tests on various browser and platform combinations. In addition, continuous testing can be done in an organization’s CI/CD Pipeline by integrating with the [best CI/CD tools](https://www.lambdatest.com/blog/best-ci-cd-tools/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) already used by organizations.
Here’s a glimpse of LambdaTest cloud Selenium Grid:
{% youtube WZlsHlReRww %}
You can subscribe to the LambdaTest YouTube Channel and stay updated with the latest tutorials around [Selenium testing](https://www.lambdatest.com/selenium-automation?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage), [Cypress E2E testing](https://www.lambdatest.com/cypress-e2e-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage), CI/CD, and more.
## Jenkins:
According to a report, 33.3% of dev teams use Jenkins as their CI/CD tools. You’ll be able to run a series of automated tests and builds after the Jenkins server is set up, ensuring that only stable (and tested) code makes it to production.
Using a tool like Jenkins can simplify the process of assuring high code quality and successful builds. It’s beneficial when working on a single project with a large development team, as traditional approaches might result in much conflicting code commits that may require a lot of troubleshooting.
## Appium:
[Appium](https://www.lambdatest.com/appium?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage) is an open-source test automation framework for mobile web apps. It allows you to create cross-browser tests for both desktop and mobile devices. Many cloud device providers now offer Appium-based testing services.
Appium is a tool for developing, uploading, executing, and examining test results directly in the cloud. Not only does Appium allow you to automate tests on both physical devices and [simulators or emulators](https://www.lambdatest.com/blog/app-testing-on-emulator-simulator/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=blog) but it also allows you to do so without recompiling your app. Appium uses a JSON wire protocol to communicate with the application being tested.
## Eggplant:
Eggplant is a continuous testing tool that provides a one-of-a-kind approach to testing: an image-based solution. Rather than presenting raw test scripts, Eggplant interacts with the Application Under Test (AUT) that simulates users’ points of view.
Eggplant provides a test lab that gives you 24/7 access to continuous testing and deployment. It integrates with other CI/CD tools like Jenkins and Bamboo. This integration allows Eggplant users to perform comprehensive testing, including unit, functional, and performance tests.
## Challenges of Continuous Testing
Continuous testing allows for faster continuous delivery (CD). However, there are challenges that must be overcome:
* **Lack of Test Support in Software:** Continuous testing becomes more difficult to achieve when testability support is not built into legacy products. Implementing testability features in these products is expensive and hinders the success of continuous testing.
* **Absence of Standard Tools:** Although there are no standard tools for continuous testing of many different products, teams usually use in-house automation tools or frameworks that lack proper documentation and maintenance. This adds to the problems of the testing team, which will now have to struggle with issues related to the tool/framework.
* **Insufficient Testing Infrastructure:** Continuous testing requires an investment in additional test environments, which must be maintained, kept up to date, and running around the clock. Advanced tools can help teams implement faster feedback loops, but these costs aren’t high compared to the price incurred due to the poor quality of the product. There is a need for organizational commitment to continuous testing instead of a halfway journey without adequate infrastructure, only adding to the problems your testers face.
* **Scaling:** All testing frameworks/tools do not scale equally. Slow test execution and lack of support for large test suites can become severe blockers to the dream of achieving continuous testing. These problems are not always apparent at first; they become visible only after many tests have been added to the system and the test system starts to get highly loaded.
## How to Adopt Continuous Testing?
Embedding quality in applications can be achieved by adding modern testing practices, such as small quality checks performed throughout the application pipeline. This enables small sections of code to be tested continuously. It’s not always the case that test automation is the first thing to be tackled. For example, even after API and GUI tests have been automated and integrated into a Continuous Integration agent, those tests have dependencies — test data, interfaces, and environments — that must be satisfied before they can be executed.
## Virtualized Environments:
Continuous testing is a process of frequently testing your code. To try more often, you must hit multiple environments more regularly. Virtualizing those environments allows you to test code without worrying about things that aren’t changing (i.e., other systems and environments).
## API Testing:
The [testing pyramid](https://www.lambdatest.com/learning-hub/test-pyramid?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub) is a concept that promotes the proper use of software testing in an organization. As per the concept, organizations should test as much as possible at the unit and API levels and minimize their reliance on [UI testing](https://www.lambdatest.com/smart-visual-ui-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=webpage). To adopt continuous testing, you need to embrace this concept and strengthen your unit and API testing; you should also reduce your dependence on UI testing.
## Test Data Management:
To achieve continuous testing, you need the right data and the appropriate diversity of data for positive and negative scenarios. Diversity in production is difficult to achieve, and that is critical. You cannot bring data from production into an application pipeline at speed it requires. Synthetic data generation allows continuous testing with the highest confidence levels because no personally identifiable information is at risk in the data.
## Test Automation:
In a continuous testing environment, today’s scripts fail due to things unrelated to the application code, and no one trusts the results. To achieve reliable test automation, you must adopt continuous testing.
## Pipeline Orchestration:
A robust continuous testing pipeline requires a solid, integrated automation suite tied to the backbone of your application. Knowing how it works and how to interpret results will make you more efficient and scalable. You must ensure that it’s transparent and that everyone has complete visibility into what’s running through the pipeline. It is an automated workflow tool that runs all the tests in the pipeline and fully integrates with code deployment activities. As part of any DevOps adoption initiative, it is unrealistic to expect to get to continuous testing without a standardized and automated pipeline.
## Acceptance of TDD and BDD:
Ensure that acceptance criteria are met by developing tests that check each criteria. This keeps testing focused within the sprints, ensuring developers develop what the business expects. Over time, teams will define much more detailed acceptance criteria, which requires tests also to be more comprehensive.
## Feedback Loops:
To be successful, continuous testing must be automated and provide real-time data within dashboards that enable the whole team to have access. Along with this, feedback loops are critical across the entire SDLC, not just production, as a compass for navigating continuous testing transformation.
## Common Practices for Continuous Testing
Continuous testing is an effective strategy because it encourages testing early and often. Here are a few best practices to get the best out of continuous testing:
## Adopt More Test Automation:
While continuous testing is still achievable with [manual testing](https://www.lambdatest.com/learning-hub/manual-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub), automation increases the speed and error coverage at which testing can function. Automating as much as possible in the development lifecycle will help you achieve faster releases. Keep in mind that if you are shifting from a manual testing process, it will take time to set up automation. However, once you do, customers will see the time-saving benefits, and your team will be able to get new features out faster than ever before.
## Tool Integration:
Continuous testing is not just about automation. It’s about using the right tools to make testing more accessible, faster, comprehensive, and more effective. Tools that work with your dev toolchain to remove manual overhead (where possible) and tools that remove/reduce mundane operations for testers by automating them so testers can focus on what is essential, i.e., testing.
## Tracking Metrics:
Quantifiable metrics can let you know how well your testing is going. Continuous testing provides immediate results to see if the software works as expected. Complex data help measure progress, quality outputs, and your business value ROI. Monitoring how many bugs are found and corrected offers continuous validation for your business value.
## Save Time With Headless Execution:
Headless execution is a method of running automated tests that do not use the head (i.e., no browser UI or GUI). The process reduces the number of unnecessary caches, cookies, or resources that are sifted through to obtain results that matter: does the application run as expected.
## Integrate Performance Testing into Delivery Cycle:
[performance testing](https://www.lambdatest.com/learning-hub/performance-testing?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub) is beneficial because it checks your application’s speed, responsiveness, and stability. It’s an investigative process that observes how the system runs and finds solutions to overcome those observations. As such, performance testing should be an integral part of continuous testing.
## Conclusion
Continuous testing has become essential for businesses to stay competitive in the modern age. To fully utilize its benefits, businesses must have the correct software. Modern-day businesses cannot afford to view continuous testing as optional but as a necessary element of software development and release. [LambdaTest’s](https://www.lambdatest.com/?utm_source=devto&utm_medium=organic&utm_campaign=apr_22&utm_term=bw&utm_content=learning_hub) test execution platform allows users to run both manual and automated tests of web and mobile apps across 3000+ different browsers, browser versions, and operating system environments. Over 500 enterprises and 600,000+ users across 130+ countries rely on LambdaTest for their test execution needs.
With this Continuous testing tutorial, we hope you understand in-depth what continuous testing is and how you can use a continuous testing strategy to speed up development and achieve agility.
So, get familiar with the code and implement Continuous testing in full swing!
| devanshbhardwaj13 |
1,870,283 | Navigating Through the Nuances of Various Testing Types: Unit, Integration, and End-to-End Testing | In the labyrinth of software development, where every single functionality plays a critical role in... | 0 | 2024-05-30T10:37:18 | https://disruptmagazine.com/navigating-through-the-nuances-of-various-testing-types-unit-integration-and-end-to-end-testing/ | testing, mobile, webdev, programming | In the labyrinth of software development, where every single functionality plays a critical role in the overall user experience, rigorous testing paradigms are non-negotiable. Diving deep into software testing, three pivotal forms surface prominently: unit testing, integration testing, and [end-to-end testing](https://www.headspin.io/blog/what-is-end-to-end-testing). The professional world, enveloping testers, product managers, SREs, and QA engineers, frequently intertwines these methodologies, leveraging each to sculpt a seamless software sculpture.
## Unit Testing: Solidifying the Foundational Framework of Software Development
Embarking upon the meticulous journey of software testing, unit testing robustly establishes itself as the elemental base, ensuring that each software component performs optimally and precisely as envisioned. Rooted in its microscopic attention to detail, this form of testing intricately examines the smallest units of a software system — be they functions, methods, or procedures — validating their efficacy and reliability in isolation from the system at large.
The essence of unit testing lies in its focus on microscopic examination. It necessitates that each unit or component of the software is meticulously carved and optimized before being integrated into the larger system framework. By affirmatively verifying each piece of the code in isolation, unit testing endeavors to ascertain that every unit acts as the expected cog in the larger machinery of the software system.
Unit testing often employs mock objects and stubs to replicate and test individual units in isolation, ensuring that external dependencies don’t skew the testing outcomes. This methodology enables testers and developers to create a controlled environment wherein each unit’s input, functionality, and output are rigorously tested, thereby confirming that every single line of code performs accurately and reliably under varied conditions.
Furthermore, unit testing provides an invaluable asset in the form of documentation. Since each unit is tested for its specific functionality, the testing code becomes a form of documentation showcasing each function’s intended use and expected behavior, thereby providing a blueprint that can be referred to throughout the development lifecycle.
## Integration Testing: Crafting a Seamless Confluence of Components
Integration testing is a paramount pillar in software testing, meticulously focusing on the confluence of individual units or components to forge a unified software entity. This sophisticated testing mode emphasizes creating a symphony where each independently validated unit now intertwines and interacts harmoniously within a collective environment, ensuring seamless data exchange and execution of connected functionalities.
In the microscopic view, each software unit is a solitary entity, encapsulating specific functionalities and logic. Once these units are thrust into a collective ecosystem during the integration phase, their intercommunication, data exchange, and mutual impact come under scrutiny. Integration testing, therefore, serves as the gatekeeper, ensuring that while these units converge, their interactions do not birth inconsistencies, data corruption, or functional aberrations.
Various approaches mold the execution of integration testing:
- **Big Bang Approach**: All units or modules are integrated simultaneously, and the entire software is tested and consolidated. This is commonly employed when testing is executed in an environment mimicking the production settings.
- **Incremental Approach**: Contrasting with the Big Bang, this method gradually integrates and tests individual units, methodically building the application. Further, this can be branched into “Top-Down” and “Bottom-Up” strategies, wherein the integration and testing start from the top or bottom units within the software hierarchy.
- **Sandwich/Hybrid Approach**: This strategy is a balanced blend of top-down and bottom-up approaches, catering to scenarios that demand a simultaneous application of both.
Integration testing doesn’t merely affirm that units communicate; it assures that they communicate accurately, reliably, and efficiently. This involves validating data transmission amongst units, ensuring error handling is executed precisely, and affirming control flows are processed aptly across the integrated components.
_Read: [Top 10 Ways to Accelerate the Software Testing Cycle](https://dev.to/abhayit2000/top-10-ways-to-accelerate-the-software-testing-cycle-bg1)_
## End-to-End Testing: Crafting an Unassailable Fortress of System Integrity
Embarking on a journey from the nascent stage of user input to the final output manifestation, E2E Testing emerges as the vigilant gatekeeper, ensuring every facet of the application commands an unbreakable demeanor against potential disruptors. This mode of testing doesn’t merely skim the surface. Instead, it plunges into the profound depths of applications, verifying the intertwined networks of systems, sub-systems, and microservices, assuring that each interplay elegantly and efficiently orchestrates a symphony of seamless user experiences.
In a world where digital interactions are multifaceted, E2E testing traverses through myriad user scenarios, data communications, and integrations. It’s not confined to a singular function but extends its guardianship from the frontend UI, gliding through the backend processes, databases, and external interfaces, ensuring the entire process chain performs harmoniously under various conditions and potential stressors. The primary spotlight is safeguarding the integrity and flawless execution of transaction processes, ensuring that every data packet journeys through the system precisely as envisioned.
Unlike other testing types, E2E testing embraces the application entirely rather than in isolated silos. It embodies the end-user perspective, replicating real-world scenarios and interactions across the full application spectrum, thereby validating functionality and safeguarding the promised user experience from any concealed discrepancies or latent bugs that might sully the user’s journey. By systematically mimicking user behaviors and interactions, it vigorously assesses how data flows through an application, from initiation to termination, validating the core functionality and interoperability of interconnected systems and sub-systems.
This comprehensive methodology beholds the sanctity of user expectations, meticulously ensuring that every transaction, interaction, and data processing mechanism adheres to the formulated specifications and accurately mirrors user requirements and expectations. Whether it’s a user logging into an application, performing a series of transactions, or interacting with various elements, E2E testing ensures that each process unfurls seamlessly, presenting users with a functioning and thriving digital environment.
## Testing in the Prism of User Experience
The testing approaches construct a resilient foundation for curating and refining the user experience. However, it’s imperative to [test user experience](https://www.headspin.io/blog/user-experience-testing-a-complete-guide) methodically, ensuring every interaction, transition, and response emanates fluidity and reliability. Deploying user-centric testing, developers and testers can diligently observe, analyze, and optimize each user interaction with the application, fortifying performance, and user satisfaction.
## The Automation Avenue: Redefining Testing Efficiency
Navigating towards efficiency and precision, automated software testing emerges as a quintessential ally, enabling testers and developers to conduct rigorous, repetitive tests without manual intervention. Automation elevates accuracy and significantly reduces testing timelines, enabling rapid deployment without compromising quality and reliability. Especially in the realms of integration and end-to-end testing, automated strategies carve out a path where consistency meets efficiency, ultimately solidifying the software’s robustness and reliability.
## Embarking on a Coherent Testing Journey with HeadSpin
HeadSpin, globally recognized for its comprehensive testing and monitoring platform, anchors organizations in aligning their testing strategies with user-centric designs and functionality. With a suite of solutions that synergize manual and automated testing methodologies, it offers a versatile platform that serves as a linchpin for organizations to conduct meticulous end-to-end testing, ensuring the integrity of user experiences across varied devices and networks. By enabling teams to visualize, analyze, and optimize user experiences, HeadSpin fortifies the commitment to crafting impeccable digital experiences.
## Wrapping Up: The Concerted Symphony of Testing Strategies
A thorough synthesis of the unit, integration, and end-to-end testing, intertwined with a steadfast focus on user experience and automated methodologies, charts the course toward creating software that stands resilient against the tides of user demands and technological advancements. Though individually potent, each testing form finds its true prowess when synergized within a coherent, comprehensive testing strategy.
By meticulously melding these testing forms, organizations reinforce their software against potential pitfalls and sculpt a user journey that resonates with reliability, functionality, and an unwavering user experience. In a digital era where user experience governs the throne, such a methodical and nuanced approach to testing emerges not merely as a strategy but as an indispensable doctrine for sustaining and thriving amidst the burgeoning technological evolution.
_Article resource: This article was originally published on https://disruptmagazine.com/navigating-through-the-nuances-of-various-testing-types-unit-integration-and-end-to-end-testing/_ | abhayit2000 |
1,870,281 | You’re reporting bugs like cavemen | How most companies work with bugs hasn’t change 20 years. You document every minute detail, hoping to... | 0 | 2024-05-30T10:36:53 | https://medium.com/@joachim.l/youre-reporting-bugs-like-cavemen-6d4ccdf1a98a | webdev, productivity, tooling, testing | How most companies work with bugs hasn’t change 20 years. You document every minute detail, hoping to provide enough information to reproduce the issue without overwhelming your team. It’s a tedious and boring chore. Enter Whitespace, a game-changing tool designed to make bug reporting effortless and precise. With features like one-click bug reports, video replays, and detailed logs, Whitespace is set to transform how you handle bugs in your development process.
## Key Features
1. **Video Replay** — Whitespace records a pixel-perfect video of the bug, allowing you to replay the issue exactly as it happened. This frame-by-frame recording ensures accuracy and clarity, making it easy for developers to see and understand the problem.
2. **Detailed Logs** — Logged errors and uncaught exceptions are automatically captured, providing a comprehensive view of what went wrong during the bug occurrence.
3. **HTTP Requests** — Whitespace captures all HTTP requests, including statuses, bodies, timings, and headers. This data helps developers understand unhandled and hidden errors that might have contributed to the bug.
4. **User Actions and Navigations** — Every mouse click and keyboard interaction is recorded, along with page loads and navigations. This thorough tracking provides a complete picture of the user’s actions leading up to the bug.
5. **Storage Changes** — Local and session storage changes are documented, ensuring that any relevant data alterations are noted.
## Developers Love It
Whitespace isn’t just another bug reporting tool; it’s a developer’s best friend. Here’s why:
**Time Travel**
Reproducing some bugs can be notoriously difficult. Whitespace addresses this with its time travel feature, which allows you to save the last minute of any session with just a click. This capability ensures that elusive, hard-to-reproduce bugs are captured and can be examined in detail later.
**Sharable Links**
Sharing bug reports with colleagues has never been easier. Each recording is sharable as a link, streamlining collaboration and communication within your team.
**Frozen in Time**
All assets used during the recording are fetched and stored by Whitespace. This means that even if you modify assets in your app later, the recording remains unchanged. This feature ensures that the bug report is accurate and reliable, regardless of subsequent changes to the app.
**Record from Localhost**
Developers can record bugs from their local development environment, making it easy to capture and report issues in in-progress features. This flexibility ensures that no bug goes undocumented, even in early development stages.
**Privacy Filters**
Whitespace takes privacy seriously. You can remove sensitive data like passwords, tokens, and session data from your recordings. Additionally, recordings are only viewable by your teammates, ensuring that sensitive information remains protected.
**Whitelist Sites**
You can choose which sites Whitespace activates on, giving you control over when and where bug reporting is enabled.
## Developer’s best friend
Whitespace is a powerful tool that redefines bug reporting. Its comprehensive feature set, ease of use, and efficiency make it an invaluable addition to any developer’s toolkit. Whether you’re working on a personal project or part of a large team, Whitespace helps you capture, understand, and resolve bugs faster and more accurately than ever before. Install the Chrome extension today and experience the future of bug reporting.
**Get started for free at** https://whitespace.dev
| qvstio |
1,863,202 | Distributed validator technology with Obol Labs | Recently I was reading about Obol Labs and found intriguing what they are offering to the world. If... | 0 | 2024-05-30T10:35:51 | https://dev.to/st1p3kolovrat/distributed-validator-technology-with-obol-labs-4d38 | softwaredevelopment, blockchain, ethereum, proofofstake | Recently I was reading about [Obol Labs](https://docs.obol.tech/docs/int/Overview) and found intriguing what they are offering to the world. If you are into proof of stake I think you should read this one and check out their official [docs](https://docs.obol.tech/docs/int/Overview)
Obol team is working on Distributed Validator Technology. Their mission is to preserve decentralization, make validators more fault-tolerant, and even give opportunity for smaller individuals to participate as validator.
Quote from their documentation:
> The Obol Network will become an open, community governed, self-sustaining project over the coming months and years. Together we will incentivize, build, and maintain distributed validator technology that makes public networks a more secure and resilient foundation to build on top of.
---
One word is enough. Beautiful.
If you are familiar with Ethereum 2.0, in proof of stake validators get punished for malicious activity. But sometimes validators get penalty without malicious intent. It can happen due to errors or misconfiguration. For example you can have 2 nodes and by mistake use same validator key on both, which would result in double voting or double proposing. Or your validator goes offline for longer than allowed, will result in inactivity penalty. Obol jumps to solve this as well. Lets find out how.
**DVT** - Distributed Validator Technology is a Ethereum proof of stake validator that consists of multiple entities forming one validator. Not all validators need to be online 100% of the time in order to continue participating in the network. More info on that in [here](https://docs.obol.tech/docs/charon/cluster-configuration#cluster-size-and-resilience)
**Charon** is a distributed validator client designed to work as part of the Ethereum proof-of-stake protocol. It forms a cluster of nodes that collectively act as a single validator. Meaning they allow multiple entities to join into one group and act as one validator in Ethereum network.
Each node in the cluster is responsible for contributing to the validation process, ensuring high availability and fault tolerance.
Traditionally when you were setting up a node you needed to generate public/private key. Now you probably are already wondering, how will multiple entities who have joined to form one validator keep this trustless. Solution is called `key sharing`.
Entities who agreed to form a group and act as one validator, will collaboratively generate and share a distributed key without any single participant knowing the complete key. This process enhances security and fault tolerance for operating distributed validators by ensuring that no individual entity holds complete control over the key. You can find out more in official [docs](https://docs.obol.tech/docs/charon/dkg)
---
### Benefits of Using Charon
**Resiliency:** The distributed nature ensures that validator operations continue even if some nodes go offline.
**Security:** Distributed shared key mechanism enhances the security of the staking process.
**Decentralization:** Helps broader goal of Ethereum’s decentralization by enabling more participants to run validators in distributed way.
Setting up Charon involves coordination and careful configuration but results in a robust and secure validation setup for Ethereum staking. For more detailed steps and technical specifics, refer to the Charon documentation provided by [Obol Labs](https://docs.obol.tech/docs/int/Overview).
| st1p3kolovrat |
1,870,279 | How to do Data Serialization and Deserialization in Golang | Exciting News! Our blog has a new Home! 🚀 Background Serialization and deserialization... | 0 | 2024-05-30T10:33:54 | https://canopas.com/how-to-do-data-serialization-and-deserialization-in-golang-90c80b0b6d58 | webdev, go, beginners, programming | > Exciting News! Our blog has a new **[Home!](https://canopas.com/blog)** 🚀
## Background
Serialization and deserialization are essential processes in modern software development, enabling data to be efficiently transported and stored.
In Go (Golang), these processes are straightforward. Thanks to its robust standard library and the availability of third-party packages.
In this blog post, we will delve into the basics of serialization and deserialization in Go, covering popular formats such as **JSON, XML, Gob, Protocol Buffers (protobuf), MessagePack, and YAML.**
So, Let’s get started! 🎯
## What are Serialization and Deserialization?
Serialization is the process of converting an in-memory data structure into a format that can be easily saved to a file or transmitted over a network.
Deserialization is the reverse process, where the serialized data is converted back into an in-memory data structure.
Common formats for serialization include JSON, XML, and binary formats like Gob, Protocol Buffers, MessagePack, and YAML.
**Each format has its own use cases and advantages:-**
- **JSON –** Great for web APIs and interoperability.
- **XML –** Useful when a strict schema is needed.
- **Gob –** Ideal for Go-specific, high-performance serialisation.
- **Protocol Buffers –** Efficient and versatile, especially for large-scale systems.
- **MessagePack –** Compact and efficient for bandwidth-sensitive applications.
- **YAML –** Human-readable, often used for configuration files.
**_Choosing the right format depends on the use case, such as human readability, performance, and compatibility requirements._**
## JSON Serialization and Deserialization
JSON (JavaScript Object Notation) is a lightweight data-interchange format that’s easy for humans to read and write, and easy for machines to parse and generate.
In Go, the encoding/json package provides methods to work with JSON.
### Example
```
package main
import (
"encoding/json"
"fmt"
)
type Person struct {
Name string `json:"name"`
Age int `json:"age"`
Email string `json:"email"`
}
func main() {
// Serialization
p := Person{Name: "Alice", Age: 30, Email: "alice@example.com"}
data, err := json.Marshal(p)
if err != nil {
fmt.Println("Error serializing:", err)
return
}
fmt.Println("Serialized JSON:", string(data))
// Deserialization
var p2 Person
err = json.Unmarshal(data, &p2)
if err != nil {
fmt.Println("Error deserializing:", err)
return
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized JSON: {"name":"Alice","age":30,"email":"alice@example.com"}
Deserialized struct: {Name:Alice Age:30 Email:alice@example.com}
```
In this example, `json.Marshal` is used for serialization and json.Unmarshal is used for deserialization.
### Advanced Tips
1. **Custom JSON Field Names:** Use struct tags to customize JSON field names.
2. **Omitting Empty Fields:** Add omitempty to struct tags to omit empty fields from the serialized output.
3. **Error Handling:** Always handle errors during serialization and deserialization to avoid data corruption or crashes.
4. **Streaming:** Use json.Encoder and json.Decoder for working with streams, such as reading from or writing to files.
## XML Serialization and Deserialization
XML (Extensible Markup Language) is another format used for serialization, particularly in applications that require strict data schemas.
Go provides the `encoding/xml` package for working with XML.
### Example
```
package main
import (
"encoding/xml"
"fmt"
)
type Person struct {
XMLName xml.Name `xml:"person"`
Name string `xml:"name"`
Age int `xml:"age"`
Email string `xml:"email"`
}
func main() {
// Serialization
p := Person{Name: "Bob", Age: 25, Email: "bob@example.com"}
data, err := xml.MarshalIndent(p, "", " ")
if err != nil {
fmt.Println("Error serializing:", err)
return
}
fmt.Println("Serialized XML:\n", string(data))
// Deserialization
var p2 Person
err = xml.Unmarshal(data, &p2)
if err != nil {
fmt.Println("Error deserializing:", err)
return
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized XML:
<person>
<name>Bob</name>
<age>25</age>
<email>bob@example.com</email>
</person>
Deserialized struct: {XMLName:{Space: Local:person} Name:Bob Age:25 Email:bob@example.com}
```
In this example, `xml.MarshalIndent` is used for serialization with indentation for readability and `xml.Unmarshal` is used for deserialization.
### Advanced Tips
1. **Customizing Element Names:** Use struct tags to customize XML element names.
2. **Attributes:** Use struct tags to serialize struct fields as XML attributes.
3. **Namespaces:** Manage XML namespaces using the XMLName field.
4. **Error Handling:** Ensure proper error handling for robustness.
## Gob Serialization and Deserialization
Gob is a binary serialization format specific to Go, which is efficient and compact.
The `encoding/gob` package facilitates working with Gob.
### Example
```
package main
import (
"bytes"
"encoding/gob"
"fmt"
)
type Person struct {
Name string
Age int
Email string
}
func main() {
// Serialization
p := Person{Name: "Charlie", Age: 28, Email: "charlie@example.com"}
var buffer bytes.Buffer
encoder := gob.NewEncoder(&buffer)
err := encoder.Encode(p)
if err != nil {
fmt.Println("Error serializing:", err)
return
}
fmt.Println("Serialized Gob:", buffer.Bytes())
// Deserialization
var p2 Person
decoder := gob.NewDecoder(&buffer)
err = decoder.Decode(&p2)
if err != nil {
fmt.Println("Error deserializing:", err)
return
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized Gob: [17 255 129 3 1 1 6 80 101 114 115 111 110 1 255 130 0 1 1 4 78 97 109 101 1 12 0 1 3 65 103 101 1 4 0 1 5 69 109 97 105 108 1 12 0 0 0 26 255 130 1 6 67 104 97 114 108 105 101 1 28 1 15 99 104 97 114 108 105 101 64 101 120 97 109 112 108 101 46 99 111 109 0]
Deserialized struct: {Name:Charlie Age:28 Email:charlie@example.com}
```
In this example, `gob.NewEncoder` and `Encode` are used for serialization and `gob.NewDecoder` and `Decode` are used for deserialization.
### Advanced Tips
1. **Efficiency:** Gob is more efficient than JSON and XML in terms of size and speed.
2. **Type Safety:** Gob ensures type safety during encoding and decoding.
3. **Streaming:** Use encoders and decoders with network connections or files for large data sets.
4. **Registering Types:** Register complex or interface types with `gob.Register` to avoid encoding errors.
## Protocol Buffers (Protobuf)
Protocol Buffers, developed by Google, is a language-neutral and platform-neutral mechanism for serializing structured data. They are more efficient than JSON and XML, especially in terms of size and speed.
### Example
First, you need to define your data structure in a `.proto` file:
```
syntax = "proto3";
message Person {
string name = 1;
int32 age = 2;
string email = 3;
}
```
Next, compile the `.proto` file using the protoc compiler to generate Go code.
Here’s how you can serialize and deserialize using Protobuf:
```
package main
import (
"fmt"
"log"
"github.com/golang/protobuf/proto"
"your_project_path/personpb" // Import the generated protobuf package
)
func main() {
// Create a new person
p := &personpb.Person{
Name: "Dave",
Age: 35,
Email: "dave@example.com",
}
// Serialization
data, err := proto.Marshal(p)
if err != nil {
log.Fatal("Marshaling error: ", err)
}
fmt.Println("Serialized Protobuf:", data)
// Deserialization
var p2 personpb.Person
err = proto.Unmarshal(data, &p2)
if err != nil {
log.Fatal("Unmarshaling error: ", err)
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized Protobuf: [10 4 68 97 118 101 16 35 26 14 100 97 118 101 64 101 120 97 109 112 108 101 46 99 111 109]
Deserialized struct: {Name:Dave Age:35 Email:dave@example.com}
```
### Advanced Tips
1. **Backward Compatibility:** Protobuf supports backward and forward compatibility.
2. **Schema Evolution:** You can add new fields to your messages without breaking existing code.
3. **Performance:** Protobuf is highly efficient in both size and speed compared to text formats.
4. **Third-party Libraries:** Use libraries like protoc-gen-go for easy integration in Go projects.
## MessagePack Serialization and Deserialization
MessagePack is an efficient binary serialization format that is more compact than JSON. It is useful for scenarios where bandwidth is a concern.
### Example
First, install the MessagePack library:
```
go get -u github.com/vmihailenco/msgpack/v5
```
Here’s an example of how to use MessagePack:
```
package main
import (
"fmt"
"log"
"github.com/vmihailenco/msgpack/v5"
)
type Person struct {
Name string
Age int
Email string
}
func main() {
// Create a new person
p := Person{Name: "Eve", Age: 22, Email: "eve@example.com"}
// Serialization
data, err := msgpack.Marshal(p)
if err != nil {
log.Fatal("Marshaling error: ", err)
}
fmt.Println("Serialized MessagePack:", data)
// Deserialization
var p2 Person
err = msgpack.Unmarshal(data, &p2)
if err != nil {
log.Fatal("Unmarshaling error: ", err)
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized MessagePack: [129 164 78 97 109 101 163 69 118 101 162 65 103 101 22 165 69 109 97 105 108 171 101 118 101 64 101 120 97 109 112 108 101 46 99 111 109]
Deserialized struct: {Name:Eve Age:22 Email:eve@example.com}
```
### Advanced Tips
1. **Efficiency:** MessagePack is very efficient in both speed and size.
2. **Human Readability:** Although binary, tools exist to convert MessagePack to JSON for readability.
3. **Compatibility:** Ensure the client and server both support MessagePack.
## YAML Serialization and Deserialization
YAML (YAML Ain’t Markup Language) is a human-readable data serialization format that is often used for configuration files.
### Example
First, install the YAML package:
```
go get -u gopkg.in/yaml.v2
```
Here’s an example of how to use YAML:
```
package main
import (
"fmt"
"log"
"gopkg.in/yaml.v2"
)
type Person struct {
Name string `yaml:"name"`
Age int `yaml:"age"`
Email string `yaml:"email"`
}
func main() {
// Create a new person
p := Person{Name: "Frank", Age: 40, Email: "frank@example.com"}
// Serialization
data, err := yaml.Marshal(p)
if err != nil {
log.Fatal("Marshaling error: ", err)
}
fmt.Println("Serialized YAML:\n", string(data))
// Deserialization
var p2 Person
err = yaml.Unmarshal(data, &p2)
if err != nil {
log.Fatal("Unmarshaling error: ", err)
}
fmt.Printf("Deserialized struct: %+v\n", p2)
}
```
### Output
```
Serialized YAML:
name: Frank
age: 40
email: frank@example.com
Deserialized struct: {Name:Frank Age:40 Email:frank@example.com}
```
### Advanced Tips
1. **Configuration Files:** YAML is commonly used for configuration files due to its readability.
2. **Indentation:** Be careful with indentation as it is significant in YAML.
3. **Complex Data Structures:** YAML supports complex data structures, including nested maps and lists.
4. That’s it for Today!!
Feel free to experiment with these examples and adjust them to fit your specific requirements.
> To read this blog on our platform, please visit **[this blog.](https://canopas.com/how-to-do-data-serialization-and-deserialization-in-golang-90c80b0b6d58)**
> The post is originally published on **[canopas.com](https://canopas.com/blog)**.
--------
If you like what you read, be sure to hit 💖 button below! — as a writer it means the world!
I encourage you to share your thoughts in the comments section below. Your input not only enriches our content but also fuels our motivation to create more valuable and informative articles for you.
**Happy coding! 👋** | cp_nandani |
1,870,208 | Maximizing Efficiency with SAP Production Planning (SAP PP) for Modern Manufacturing | In today’s dynamic manufacturing landscape, efficiency and precision are key to staying ahead. SAP... | 0 | 2024-05-30T10:14:33 | https://dev.to/mylearnnest/maximizing-efficiency-with-sap-production-planning-sap-pp-for-modern-manufacturing-12dg | sap, sappp | In today’s dynamic manufacturing landscape, efficiency and precision are key to staying ahead. [SAP Production Planning (SAP PP)](https://www.sapmasters.in/sap-pp-training-in-bangalore/) plays a pivotal role within the SAP ERP system, streamlining production processes and optimizing resource utilization. This comprehensive guide explores the core features, benefits, and best practices of SAP PP, empowering businesses to harness its full potential in production planning.
**What is SAP Production Planning (SAP PP)?**
SAP Production Planning (SAP PP) is an essential module within the SAP ERP system, dedicated to the planning and control of manufacturing activities. It integrates seamlessly with other SAP modules such as Material Management (MM), Sales and Distribution (SD), and Quality Management (QM), providing a cohesive platform for managing the entire production lifecycle.
**Core Features of SAP PP:**
**Material Requirement Planning (MRP):**The MRP function in SAP PP ensures materials are available for [production and products](https://www.sapmasters.in/sap-pp-training-in-bangalore/) are ready for delivery. It calculates the necessary quantities and schedules for materials based on demand, inventory levels, and production timelines.
**Bill of Materials (BOM):**BOMs are detailed lists of materials, components, and assemblies needed to produce a product. SAP PP enables the creation and management of BOMs, ensuring accuracy in material requirements and cost estimations.
**Work Center Management:**Work centers are locations where production operations occur. [SAP PP](https://www.sapmasters.in/sap-pp-training-in-bangalore/) manages these centers, detailing their capacities, scheduling operations, and monitoring performance.
**Routing:**Routing specifies the operations required to manufacture a product and their sequence. SAP PP aids in creating and maintaining routings, ensuring efficient workflow management.
**Production Orders:**Production orders are directives to manufacture a specific quantity of a product. SAP PP facilitates the creation, scheduling, and monitoring of production orders, ensuring timely and efficient production.
**Capacity Planning:**Capacity planning involves balancing resource loads to meet production demands without overburdening resources. SAP PP's tools assist in analyzing capacity loads and adjusting production schedules accordingly.
**Shop Floor Control:**This feature monitors the status of production orders and operations in real-time, providing insights into [production performance](https://www.sapmasters.in/sap-pp-training-in-bangalore/) and identifying bottlenecks.
**Benefits of SAP PP:**
**Enhanced Efficiency:**SAP PP automates and optimizes production planning processes, reducing manual intervention and errors, leading to streamlined operations and increased productivity.
**Improved Resource Utilization:**By accurately planning material requirements and production schedules, SAP PP ensures optimal resource use, minimizing waste and cutting costs.
**Better Visibility and Control:**Real-time data on production activities gives businesses greater visibility into their operations, enabling informed decision-making and quick issue resolution.
**Scalability:**SAP PP is highly scalable, suitable for businesses of all sizes. As production demands grow, the system can adapt to handle increased complexity and volume.
**Integration with Other SAP Modules:**Seamless integration with other SAP modules ensures smooth data flow across different functions, providing a holistic business view and enhancing overall efficiency.
**Implementing SAP PP: Best Practices:**
**Thoroughly Analyze Business Requirements:**Conduct a detailed analysis of your business [processes and requirements](https://www.sapmasters.in/sap-pp-training-in-bangalore/) before implementation. Understanding your production environment's specific needs will help configure SAP PP to best suit your operations.
**Involve Key Stakeholders:**Involve stakeholders from various departments (production, finance, sales, etc.) in the planning and implementation process. Their insights and feedback are crucial for a successful rollout.
**Data Accuracy:**Ensure all data, including BOMs, routings, and [inventory levels](https://www.sapmasters.in/sap-pp-training-in-bangalore/), is accurate and up-to-date. Accurate data is the foundation of effective production planning.
**Training and Support:**Provide comprehensive training to all SAP PP users. Understanding the system’s functionalities and best practices is essential for maximizing its benefits.
**Continuous Monitoring and Improvement:**Regularly monitor SAP PP’s performance and gather user feedback. Use this information to make continuous improvements and keep the system aligned with changing business needs.
**Case Study: SAP PP in Action:**
Company X, a mid-sized manufacturing firm specializing in consumer electronics, faced challenges such as inaccurate material planning, frequent production delays, and high operational costs before implementing SAP PP.
Following a thorough analysis, Company X decided to implement SAP PP, starting with detailed training sessions to ensure staff understood the system’s capabilities.
With SAP PP, Company X automated material requirement planning, leading to more accurate material forecasts and reduced inventory costs. BOM management helped maintain precise records of all components, ensuring production orders were executed without delays due to missing materials.
Using work center management and routing, Company X optimized their production workflow, significantly improving manufacturing efficiency. Real-time shop floor control allowed close monitoring of production activities, quickly identifying and addressing issues.
As a result, Company X saw a dramatic improvement in production efficiency, reduced operational costs, and enhanced ability to meet customer demand promptly. SAP PP's robust capabilities have given Company X a competitive market edge.
**Conclusion:**
SAP Production Planning (SAP PP) is a powerful tool that can transform manufacturing operations, driving efficiency and productivity. By automating and optimizing key [production processes](https://www.sapmasters.in/sap-pp-training-in-bangalore/), it helps businesses make better use of their resources, reduce costs, and improve overall performance.
Implementing SAP PP requires careful planning, accurate data, and ongoing support, but the benefits far outweigh the challenges. Whether you are a small business looking to scale or a large enterprise aiming to maintain your competitive edge, SAP PP offers the solutions needed to succeed in the dynamic manufacturing world. | mylearnnest |
1,870,278 | Abacus Market | Hey there, fellow connoisseurs of clandestine commerce! Let's delve into the clandestine realm of the... | 0 | 2024-05-30T10:31:49 | https://dev.to/patrick_reynolds_/abacus-market-5die | Hey there, fellow connoisseurs of clandestine commerce! Let's delve into the clandestine realm of the Abacus Market (link hidden for discretion). Here, precision meets anonymity, offering a sanctuary for those seeking discreet transactions. With its encrypted platform and decentralized structure, the [abacus market](https://abacusdarknet.org/) ensures confidentiality and security, a haven for buyers and sellers alike. Plus, the absence of traditional banking channels means no paper trails to follow. It's the ultimate playground for those who value privacy and discretion. | patrick_reynolds_ | |
1,870,277 | insertOne, insertMany and find, findOne in MongoDB | In databases, the insertOne and insertMany methods are used to add new data. insertOne is used to... | 0 | 2024-05-30T10:31:07 | https://dev.to/kawsarkabir/insertone-insertmany-and-find-findone-in-mongodb-1b56 | mongobd, queries, kawsarkabir | In databases, the `insertOne` and `insertMany` methods are used to add new data. `insertOne` is used to insert a single document, while `insertMany` can be used to insert multiple documents at once. Let’s understand this with examples:
#### Adding a single document (insertOne):
```javascript
db.students.insertOne({
id: 1,
name: 'Rahim',
age: 20,
email: 'abc@gmail.com',
gender: "Male",
});
```
#### Adding multiple documents at once (insertMany):
```javascript
db.students.insertMany([
{ id: 2, name: 'Karim', age: 22, email: 'abc@gmail.com', gender: 'Male' },
{ id: 3, name: 'Ayesha', age: 19, email: 'abc@gmail.com', gender: 'Female' },
{ id: 4, name: 'Fatima', age: 21, email: 'abc@gmail.com', gender: 'Female' }
]);
```
- Here, `db.students` indicates that we are working in the `students` collection.
- The `{}` represents a JSON object being inserted.
# **Find & FindOne**
`Find` means to search. Suppose we want to view the data that has been added to the database. The `find()` and `findOne()` methods help us with this task. The `find()` method retrieves all the data, while the `findOne()` method is used to retrieve specific data. Let's look at examples:
#### To find all data:
```javascript
db.students.find();
```
- The `find()` method is used to find all the data.
#### To find specific data:
```javascript
db.students.findOne({ id: 1 });
```
- The `findOne()` method is used to find a specific document.
- `{ id: 1 }` is the search criterion indicating that we are looking for the document with `id: 1`.
# **Field Filtering**
Suppose someone asks for data of only female students. In this case, we can access data for a specific field using `Field Filtering`:
#### To find data for a specific field:
```javascript
db.students.find({ gender: 'Female' });
```
- `{ gender: 'Female' }` is the search criterion indicating that we are looking for documents where the `gender` field is `Female`.
# **Project**
The previous task can also be done using the `Project()` method, but the difference is that you cannot use `findOne()` with `Project()`, only `find()` can be used.
#### To find data for a specific field using the `Project()` method:
```javascript
db.students.find({ gender: 'Female' }).project({ name: 1, email: 1 });
```
- `{ gender: 'Female' }` is the search criterion indicating that we are looking for documents where the `gender` field is `Female`.
- `{ name: 1, email: 1 }` means we want to get the `name` and `email` fields of the female students.
This is how we can insert and find data in MongoDB! | kawsarkabir |
1,870,276 | Task 17 | What is Selenium? Selenium is an open-source package of tools specifically built for automating web... | 0 | 2024-05-30T10:28:58 | https://dev.to/shivark2010/task-17-12ln | **What is Selenium?**
Selenium is an open-source package of tools specifically built for automating web browsers. Initially developed by Jason Huggins in 2004, Selenium has grown to become one of the most extensively used technologies for web automation. It helps testers and developers to generate automated tests for online applications across different browsers and operating systems, utilizing various programming languages like Java, C#, Python, Ruby, and JavaScript.
**Components of Selenium:**
Selenium is not a single tool but a suite consisting of numerous components, each with its specific functionalities:
**1. Selenium IDE (Integrated Development Environment):**
- A basic, user-friendly browser extension for Firefox and Chrome.
- Ideal for beginners, it permits recording and playback of user interactions with the browser.
- Useful for building short test scripts and for prototyping.
**2. Selenium WebDriver:**
- It's a more advanced tool than the Selenium IDE; it offers a programming interface for writing and running test scripts.
- Supports a wide range of programming languages and browsers, including Chrome, Firefox, Safari, and Edge.
- Interacts directly with the browser, more closely resembling the actions of an actual user.
**3.Selenium Grid:**
- Enables the execution of test scripts on multiple machines simultaneously.
- Facilitates parallel testing, reducing the time required for test execution.
- Useful for testing applications across different browser and OS combinations.
**4.Selenium RC (Remote Control):**
- An older tool that has been largely deprecated in favor of WebDriver.
- Allowed writing automated web application UI tests in any programming language.
**Why Use Selenium for Automation?**
Selenium's widespread adoption in the industry can be attributed to several compelling advantages:
**1. Cross-Browser Compatibility:**
Selenium supports all major web browsers, ensuring that applications are tested across different environments.
This cross-browser functionality helps in identifying and fixing browser-specific issues early in the development cycle.
**2.Multi-Language Support:**
Selenium offers bindings for numerous programming languages, providing flexibility to testers and developers.
Teams can use a language they are comfortable with, integrating Selenium with existing technology stacks seamlessly.
**3.Parallel Test Execution:**
With Selenium Grid, tests can be run in parallel on multiple machines, significantly speeding up the testing process.
This capability is crucial for continuous integration/continuous deployment (CI/CD) pipelines, where quick feedback is essential.
**4. Community and Ecosystem:**
As an open-source tool, Selenium has a vast and active community.
A rich ecosystem of plugins and extensions enhances its capabilities, making it easier to integrate with other tools and frameworks.
**5. Real User Simulation:**
Selenium WebDriver interacts with the browser in a manner similar to how a human would, providing more accurate test results.
It can handle complex user interactions, including clicking, typing, and navigating through pages, which are crucial for end-to-end testing.
**6. Scalability and Flexibility:**
Selenium can be integrated with various testing frameworks like TestNG, JUnit, and NUnit.
It supports data-driven testing, allowing tests to run with different sets of data.
**Practical Applications**
Selenium's versatility makes it suitable for a wide range of testing scenarios:
**1. Functional Testing:**
Validates the functionality of web applications to ensure they perform as expected.
**2. Regression Testing:**
Ensures that new changes or updates do not adversely affect existing functionality.
**3. Load Testing:**
While not a primary load testing tool, Selenium can be integrated with tools like JMeter to simulate multiple users.
**4. Cross-Browser Testing:**
Ensures compatibility across different browsers, critical for a consistent user experience.
| shivark2010 | |
1,870,275 | Private Banking: Tailored Wealth Management for High-Net-Worth Individuals | Private banking is a dynamic and multifaceted industry designed to cater to the banking, investing,... | 0 | 2024-05-30T10:26:44 | https://dev.to/linda0609/private-banking-tailored-wealth-management-for-high-net-worth-individuals-4045 | Private banking is a dynamic and multifaceted industry designed to cater to the banking, investing, and tax management needs of high-net-worth individuals (HNWIs). Unlike retail banking, which offers standardized services to the general public, private banking provides highly personalized financial services through specialists dedicated to offering customized wealth management solutions.
HNWIs benefit from the financial stability that grants them access to a broader range of investment opportunities, such as real estate and hedge funds. Private banking provides deep insights and expert knowledge about these investment alternatives, allowing clients to make informed decisions and optimize their portfolios.
Many consumer banks offer [private banking services](https://us.sganalytics.com/investment-research/private-banking/) to help HNWIs grow their wealth. Clients with substantial accounts can expect a range of exclusive benefits and personalized services, such as direct access to the staff managing their accounts. Often, these clients can contact their lead banker directly to conduct significant transactions, bypassing the need to visit the bank in person.
What makes private banking so appealing to HNWIs? What sets it apart from consumer banking and asset management firms? Let's delve deeper into private banking, exploring its advantages and disadvantages.
What is Private Banking?
Private banking is a suite of financial services provided by banks and other financial institutions to HNWIs. These individuals typically possess substantial assets and require specialized financial services that are not available to the general public.
Services offered through private banking include investment management, wealth planning, tax planning, trust and estate planning, and access to specialized products like hedge funds and private equity. Clients work closely with a private banker or wealth manager to develop tailored investment strategies that align with their financial goals.
In addition to investment services, private banking clients often enjoy other exclusive perks such as private banking credit and debit cards, access to private banking lounges, and concierge services. However, these services come at a higher cost than standard banking services, with minimum asset requirements to open an account usually being quite substantial.
How Does Private Banking Work?
Private banking focuses on tailoring financial services to the unique needs of each client. Clients are typically assigned a "relationship manager" or "private banker" who oversees all aspects of their accounts. These private bankers handle complex tasks on behalf of their clients, such as arranging large mortgages and managing routine bill payments.
The scope of private banking extends far beyond simple wealth management using certificates of deposit and safe deposit boxes. It encompasses investment strategies, financial planning, portfolio management, personal finance delegation, retirement planning, and wealth transfers. Most institutions require a minimum of $100,000 in assets to access some private banking services, although elite financial institutions may set this threshold at $1 million or more.
Who Uses Private Banking Services?
Private banking services are primarily used by individuals and families with high net worth. These clients typically have significant assets and financial resources, necessitating specialized financial solutions and personalized attention.
High-net-worth Individuals: Individuals with a net worth of at least $1 million often have diverse investments and assets, including stocks, bonds, real estate, and other properties. They may also have substantial income streams from business ventures or investments.
Business Owners and Executives: These individuals often have complex financial needs, requiring the management of both business and personal finances. Private banking services can offer the necessary expertise and tailored solutions to meet these needs.
Families and Trusts: Wealthy families and trusts utilize private banking services to manage multi-generational wealth and ensure orderly, tax-efficient asset transfers. Trusts are often created to hold and manage assets for beneficiaries, such as children or other family members.
Eligibility criteria for private banking services can vary widely among banks. Some institutions may cater to clients with lower net worth but significant liquidity and cash flow, depending on their internal policies and risk appetite.
Advantages of Private Banking
Private banking offers numerous benefits for HNWIs, families, and businesses requiring specialized financial solutions and personalized attention.
Professional Advice and Guidance: Clients have access to dedicated relationship managers and teams of financial experts who provide personalized advice on various financial matters, including investment management, tax planning, and estate planning.
Tailored Financial Solutions: Private banks can offer customized financial solutions to meet specific client needs, such as bespoke investment portfolios and credit facilities not typically available through retail banking channels.
Greater Control Over Investments and Assets: Clients enjoy more control over their investments and assets, working closely with their relationship manager to develop a financial plan that aligns with their goals and risk tolerance.
Enhanced Privacy and Security: Private banking clients benefit from heightened privacy and security. They may access exclusive areas within the bank, and their financial information is kept confidential, with stringent security measures protecting their assets and data.
Access to Exclusive Investment Opportunities: Clients can invest in exclusive opportunities unavailable to the general public, including private equity, venture capital funds, hedge funds, and alternative investments.
Credit and Lending Options: Private banking clients have access to a broader range of credit and lending options, such as structured finance and syndicated loans, often with more favorable terms than those offered through retail banking.
International Banking Services: Clients with international interests can benefit from services such as foreign currency accounts, foreign exchange trading, and cross-border payments, facilitating their global financial operations.
Disadvantages of Private Banking
While private banking offers many advantages, there are also potential drawbacks.
Higher Costs and Fees: Private banking services are more expensive than retail banking. Clients may face higher account minimums and fees for services like investment management, wealth planning, and credit facilities.
Limited Access for Those with Lower Net Worth: Private banking is typically reserved for HNWIs, making it inaccessible to individuals and families with lower net worth who cannot benefit from its exclusive services.
Lack of Transparency: Private banks may lack the transparency of retail banks regarding fees, charges, and investment strategies, making it challenging for clients to fully understand how their money is managed and invested.
Conclusion
Private banking is a specialized form of banking that offers a comprehensive range of financial services and solutions for HNWIs, families, and businesses. Clients benefit from access to dedicated relationship managers and financial experts who provide personalized advice and tailored financial solutions. They also enjoy greater control over their investments, enhanced privacy and security, and exclusive investment opportunities.
However, private banking services come at a higher cost and are not accessible to those with lower net worth. Additionally, there can be a lack of transparency and potential conflicts of interest. Prospective clients should carefully weigh the advantages and disadvantages before deciding if private banking is the right choice for them.
[SG Analytics](https://us.sganalytics.com/) offers a variety of private banking solutions, including investment management, wealth planning, and credit facilities tailored to meet the specific needs of their clients. Their team of financial experts provides personalized advice and guidance on various financial matters, helping clients achieve their financial goals. | linda0609 | |
1,870,274 | How to Succeed in EX280: Insider Techniques with Dumps | Accurate and updated content: We ensure that the exam dump provider provides accurate and up-to-date... | 0 | 2024-05-30T10:26:25 | https://dev.to/fikev17229/how-to-succeed-in-ex280-insider-techniques-with-dumps-3gbk | Accurate and updated content: We ensure that the exam dump provider provides accurate and up-to-date content that is in line with the latest her EX280 exam objectives. Look for providers who regularly update their study materials to reflect changes in the exam syllabus.
Comprehensive Coverage: Choose a EX280 Exam Dumps provider with comprehensive coverage of EX280 exam topics. The exam dump should cover all major concepts and objectives that will be tested on the exam to ensure thorough preparation.
Question quality: Evaluate the quality of the practice questions provided by the exam dump provider. Look for well-crafted questions that simulate the format and difficulty of the real exam to enhance your preparation.
User-friendly interface: Choose a provider that offers a user-friendly interface for accessing and navigating your exam dumps. The platform should be easy to use and navigate, allowing you to focus on learning without unnecessary distractions.
CLICK HERE FOR MORE INFO>>>>>>>>>>>>>>> https://dumpsarena.com/redhat-dumps/ex280/ | fikev17229 | |
1,870,272 | Unlocking Architectural Design with the .floor File Format | In the world of architectural design, efficiency and precision are key. The .floor file format, a... | 0 | 2024-05-30T10:25:30 | https://dev.to/slaymish/unlocking-architectural-design-with-the-floor-file-format-3p8a | 3dmodelling, opensource, blender, architecture | In the world of architectural design, efficiency and precision are key. The .floor file format, a JSON-based standard, is here to revolutionize how architectural floor plans are managed and visualized. Designed for seamless integration with various tools, this format captures detailed information about building layouts, from room outlines to wall data and beyond. In this article, we’ll highlight the core features of the .floor format and introduce the Blender add-on that brings these plans to life in 3D.
## What is the .floor File Format?
The .floor file format standardizes architectural floor plan data, making it easily usable across different platforms. It includes:
- **Header:** Version, creation date, author.
- **Metadata:** Project name, location, client information, building dimensions, number of floors.
- **Floor Data:** Floor identifiers, outlines, room data.
- **Room Data:** Room identifiers, names, outlines, wall data.
- **Wall Data:** Wall start/end points, height, thickness.
- **Additional Metadata:** Materials, electrical outlets, windows, doors.
For a complete breakdown, refer to the [specification](https://github.com/OpenArchSpecs/FloorPlanJSN/blob/main/specification/floor_format.md).
## Blender Add-On: Bringing Floor Plans to Life
One of the standout tools in the .floor project is the Blender add-on, which enables the import of .floor files into Blender, a popular 3D modeling software.
### Features
- **Import .floor Files:** Convert .floor files into detailed 3D models.
- **Automated 3D Modeling:** Automatically generate 3D structures from floor plan data.
- **Customizable Settings:** Adjust import settings to fit your needs.
### Installation and Usage
1. **Download the Add-On:** Visit the [Blender add-on repository](https://github.com/OpenArchSpecs/blender-addon) and download the latest release.
2. **Install in Blender:** Go to Edit > Preferences > Add-ons, click Install, and select the downloaded ZIP file.
3. **Enable the Add-On:** Enable it from the list.
4. **Import Your .floor File:** Go to File > Import > .floor File, and select your .floor file.
### Benefits
- **Enhanced Visualization:** View designs from every angle.
- **Improved Communication:** Share 3D models with clients and stakeholders.
- **Streamlined Workflow:** Integrate 3D modeling seamlessly into your design process.
## Contributing
The .floor project thrives on community contributions. Your input can help refine this innovative format. Check out the [contributing guidelines](https://github.com/OpenArchSpecs) to get involved.
## Conclusion
The .floor file format and its Blender add-on are set to transform architectural design by standardizing floor plan data and enabling sophisticated 3D modeling. Explore the .floor format, contribute to its development, and unlock new possibilities in your projects. Visit the [OpenArchSpecs GitHub repository](https://github.com/OpenArchSpecs) to get started. | slaymish |
1,870,271 | How to find the best Workday testing tool | Workday is one of the top Cloud-based options for financial and human resource management, but with... | 0 | 2024-05-30T10:24:45 | https://thecoastnews.com/author/how-to-find-the-best-workday-testing-tool/ | workday, testing, tool | Workday is one of the top Cloud-based options for financial and human resource management, but with enterprise software constantly expanding, it is insufficient. With its extensive feature set and flexible integration options, Workday is a great tool for businesses looking to expand. No, the opposite is true, and in such a big and complex system, no one should take risks. That is why your organisation needs a reliable, efficient Workday testing tool. In this blog, we will take you to the key points to consider to choose the best Workday testing tool for your organisation.
**Identify your testing needs**
Understanding the testing requirements of your company is essential before you begin searching for a Workday testing tool. HCM, finance, payroll, and other key modules are just a few of the intricate components that make up Workday. First, analyse which parts and activities in Workday are critical for your organisation. Second, prioritise the testing requirements to help you narrow down your search by selecting tools that meet your needs and objectives.
**Automation and scriptless testing**
The ability to automate testing processes is one of the most important aspects of a good testing tool for Workday. Automated testing saves time and energy, but most importantly, gives predictable and repeatable results. It is important to select a testing tool that provides strong automation opportunities and allows you to write and run scripts swiftly. It is also recommended that the tool provide a scriptless testing opportunity, which will suit users who are new to testing or have no experience with coding.
**Integration and compatibility**
Given that businesses are rapidly moving towards a multi-cloud strategy, the Workday testing tool you select must also integrate smoothly with other systems and applications embedded within your technology stack. It is necessary to use the tools that are compatible with your current infrastructure, from operating systems, and browsers to third-party applications. It will simplify the process and minimize compatibility-related complications, resulting in a diligent and accurate testing experience.
**User-friendly interface and reporting**
However, while functionality is important, a proper user experience is vital when it comes to choosing a Workday testing tool. Opt for a product that comes with a convenient, easy-to-use UI that eliminates the need for extensive training. Moreover, there are solutions with a handy reporting feature, which allows one to monitor the testing process, analyse the results, and detect any occurrence for further analysis in real time.
Support and community
Like any software product, implementing and working with a Workday testing tool can be accompanied by various hardships and problems. For such cases, having access to appropriate support and active communities can be truly beneficial. Consider the vendor’s support options, such as the availability of documentation and knowledge base and how timely inquiries are answered. In addition, find out if there are user communities or forums to which users can turn to find answers to their questions, share the best practices, and be aware of the product and the industry’s updates.
**Conclusion**
Opkey offers a full no-code solution for Workday testing. Opkey's user-oriented interface enables end-users to generate and run tests with ease, resulting in a seamless experience for the Workday platform end-to-end. Moreover, as Opkey is adept at managing how your organisation rolls out Workday releases, Opkey will concentrate where it is most necessary: high-risk situations, permitting you to complete optimum pieces in minimal time. Similarly, Opkey affords plug-and-play pre-built testing, providing you immediate coverage, and taking the chance out of execution. With Opkey, you can experience flawless and complete Workday testing with minimal effort.
| rohitbhandari102 |
1,870,270 | Maximizing Cost Efficiency In AWS Kubernetes Environment | AWS Kubecost: Optimizing Kubernetes Costs on AWS AWS Kubecost is a powerful tool designed to provide... | 0 | 2024-05-30T10:24:12 | https://dev.to/saumya27/maximizing-cost-efficiency-in-aws-kubernetes-environment-fl5 | aws, kubernetes | **AWS Kubecost: Optimizing Kubernetes Costs on AWS**
AWS Kubecost is a powerful tool designed to provide comprehensive cost visibility and optimization for Kubernetes environments running on AWS. As organizations increasingly adopt Kubernetes for container orchestration, managing and controlling costs can become a complex challenge. Kubecost addresses this by offering detailed insights into resource usage, cost allocation, and efficiency recommendations tailored for AWS infrastructure.
**Key Features of AWS Kubecost**
**1. Cost Allocation and Visibility:**
- Granular Cost Breakdown: Provides detailed cost allocation across various dimensions such as namespaces, deployments, services, and labels.
- Real-Time Monitoring: Offers real-time tracking of Kubernetes costs, helping teams stay on top of spending and avoid budget overruns.
**2. Resource Utilization Insights:**
- Usage Metrics: Monitors resource usage, including CPU, memory, and storage, to identify underutilized or over-provisioned resources.
- Efficiency Recommendations: Suggests optimizations for resource allocation, enabling better utilization and cost savings.
**3. Integration with AWS Services:**
- AWS Cost and Usage Report (CUR) Integration: Integrates with AWS CUR to provide a unified view of Kubernetes and AWS costs.
- Support for Multiple AWS Services: Monitors costs for services like Amazon EKS (Elastic Kubernetes Service), EC2 instances, and S3 storage used by Kubernetes clusters.
**4. Alerts and Notifications:**
- Budget Alerts: Configurable alerts notify users when spending exceeds predefined thresholds.
- Anomaly Detection: Identifies unusual spending patterns and alerts users to potential issues or misconfigurations.
**5. Cost Allocation Policies:**
- Custom Policies: Allows the creation of custom cost allocation policies based on business needs and organizational structures.
- Chargeback and Showback: Facilitates chargeback and showback models, enabling teams to allocate costs to specific departments or projects.
**6. User-Friendly Dashboard:**
- Interactive Dashboards: Provides intuitive and interactive dashboards for easy navigation and analysis of cost data.
- Exportable Reports: Generates reports that can be exported and shared with stakeholders for transparency and decision-making.
**7. Multi-Cluster Support:**
- Cluster Management: Supports monitoring and cost management across multiple Kubernetes clusters within an AWS environment.
- Unified View: Offers a consolidated view of costs across all clusters, simplifying management and reporting.
**Benefits of Using AWS Kubecost**
- Cost Efficiency: Helps organizations identify and eliminate wasteful spending, leading to significant cost savings.
- Enhanced Visibility: Provides deep insights into Kubernetes costs, enabling better financial management and accountability.
- Improved Resource Management: Ensures optimal resource utilization by highlighting inefficiencies and providing actionable recommendations.
- Scalability: Supports growing Kubernetes environments and adapts to increasing complexity in resource management and cost tracking.
- Integration and Compatibility: Seamlessly integrates with AWS services and existing cost management tools, ensuring a smooth workflow.
**Conclusion**
[AWS Kubecost](https://cloudastra.co/blogs/cost-efficiency-in-aws-kubernetes-environment-aws-kubecost) is an essential tool for organizations running Kubernetes on AWS, offering robust features for cost tracking, resource optimization, and financial accountability. By leveraging Kubecost, businesses can gain control over their Kubernetes spending, improve resource utilization, and achieve better alignment with their budgetary goals. Whether managing a single cluster or multiple clusters, AWS Kubecost provides the insights and tools needed to optimize costs and drive efficiency in cloud-native environments. | saumya27 |
1,870,218 | Discover New Ideas for Triple Nose Piercing! | Looking for something new in nose piercing? How about a triple Nose Piercing? Here are various types... | 0 | 2024-05-30T10:20:18 | https://dev.to/nosepiercings/discover-new-ideas-for-triple-nose-piercing-k5o | Looking for something new in nose piercing? How about a **[triple Nose Piercing](https://www.nose-piercings.com/triplenosepiercing.html
)**? Here are various types of triple nostril piercing to inspire you. Read more!
| nosepiercings | |
1,870,217 | One command to create everything in Laravel | How to | Tutorial | Quick Win Wednesday #QWW | A post by Bert De Swaef | 0 | 2024-05-30T10:19:02 | https://dev.to/burtds/one-command-to-create-everything-in-laravel-how-to-tutorial-quick-win-wednesday-qww-23cp | laravel, tutorial, php, beginners | {% embed https://youtu.be/qYsOd3_-6dM %} | burtds |
1,870,214 | expect is not waiting for the element, as per mentioned timeout | Hi Team, I have declared the mentioned timeout in playwright.config.js as '35000' but test is... | 0 | 2024-05-30T10:18:26 | https://dev.to/srimounika_tuttagunta_0ee/expect-is-not-waiting-for-the-element-as-per-mentioned-timeout-58ll | help | Hi Team, I have declared the mentioned timeout in playwright.config.js as '35000'
but test is failing before waiting for 35000ms | srimounika_tuttagunta_0ee |
1,870,213 | Becoming a front-end developer involves | Becoming a front-end developer involves acquiring specific skills, gaining practical experience, and... | 0 | 2024-05-30T10:17:09 | https://dev.to/eliaschinedu/becoming-a-front-end-developer-involves-1k2e | javascript, beginners, programming, tutorial |
Becoming a front-end developer involves acquiring specific skills, gaining practical experience, and understanding the tools and technologies used in the field. Here's a step-by-step guide to help you get started:
### 1. **Learn the Basics of Web Development**
- **HTML**: Understand the structure of web pages using Hypertext Markup Language.
- **CSS**: Learn to style web pages using Cascading Style Sheets.
- **JavaScript**: Get comfortable with JavaScript for adding interactivity to web pages.
### 2. **Master Front-End Technologies and Frameworks**
- **CSS Preprocessors**: Learn tools like Sass or LESS to write more maintainable CSS.
- **JavaScript Libraries and Frameworks**:
- **React.js**: A popular library for building user interfaces.
- **Vue.js**: A progressive framework for building user interfaces.
- **Angular**: A platform for building mobile and desktop web applications.
### 3. **Learn Version Control**
- **Git**: Understand the basics of Git for version control and collaboration. Use platforms like GitHub or GitLab to host your projects.
### 4. **Familiarize Yourself with Build Tools**
- **Webpack**: A static module bundler for modern JavaScript applications.
- **Babel**: A JavaScript compiler that allows you to use next-generation JavaScript, today.
- **NPM/Yarn**: Package managers that help you manage project dependencies.
### 5. **Understand Responsive Design**
- Learn how to make web pages look good on all devices using responsive design techniques, media queries, and frameworks like Bootstrap or Tailwind CSS.
### 6. **Get Comfortable with Development Tools**
- **Browser DevTools**: Learn to debug and optimize your code using browser developer tools.
- **Code Editors**: Use editors like VSCode, Sublime Text, or Atom to write your code efficiently.
### 7. **Practice and Build Projects**
- Start with small projects like personal websites or simple web apps.
- Gradually take on more complex projects to build your portfolio.
- Contribute to open-source projects to gain real-world experience.
### 8. **Learn Basic Design Principles**
- Understand the fundamentals of UI/UX design to create user-friendly and aesthetically pleasing interfaces.
### 9. **Stay Updated with Trends and Best Practices**
- Follow blogs, subscribe to newsletters, and join communities like Stack Overflow, Reddit, or GitHub discussions to stay informed about the latest trends and best practices in front-end development.
### 10. **Network and Look for Job Opportunities**
- Attend meetups, conferences, and workshops to network with other developers.
- Use platforms like LinkedIn, Glassdoor, and Indeed to search for job openings.
- Prepare a solid resume and portfolio showcasing your skills and projects click to read more[][](http://www.porttutorial.com.ng/2024/05/becoming-front-end-developer-involves.html) | eliaschinedu |
1,870,212 | Mastering the Art of Frontend Design and Embracing New Technologies... #FrontendChallengesandSolutions | This is a submission for Frontend Challenge v24.04.17, CSS Art: June. Inspiration ... | 0 | 2024-05-30T10:16:53 | https://dev.to/wunmie/mastering-the-art-of-frontend-design-and-embracing-new-technologiesfrontendchallengesandsolutions-5beb | frontendchallenge, devchallenge, css, javascript | _This is a submission for [Frontend Challenge v24.04.17](https://dev.to/challenges/frontend-2024-05-29), CSS Art: June._
## Inspiration
<!-- What are you highlighting today? -->
## Demo
<!-- Show us your CSS Art! You can directly embed an editor into this post (see the FAQ section of the challenge page) or you can share an image of your project and share a public link to the code. -->
## Journey
<!-- Tell us about your process, what you learned, anything you are particularly proud of, what you hope to do next, etc. -->
<!-- Team Submissions: Please pick one member to publish the submission and credit teammates by listing their DEV usernames directly in the body of the post. -->
<!-- We encourage you to consider adding a license for your code. -->
<!-- Don't forget to add a cover image to your post (if you want). -->
<!-- Thanks for participating! --> | wunmie |
1,870,211 | dsfsdf | dsfdsfdsfds | 0 | 2024-05-30T10:16:20 | https://dev.to/crllnkhoa/dsfsdf-333i | dsfdsfdsfds | crllnkhoa | |
1,870,210 | RapidForms | RapidForms: Elevate Your Online Forms with Ease Elevating your online forms is a breeze with... | 0 | 2024-05-30T10:15:43 | https://dev.to/rapidforms/rapidforms-2agh | webdev, nocode, softwaredevelopment, productivity | **RapidForms: Elevate Your Online Forms with Ease**
Elevating your online forms is a breeze with RapidForms, the developer-friendly platform that simplifies the task of creating effective forms. Say goodbye to the complexities of coding and hello to an intuitive interface that allows you to build forms that are not only visually appealing but also designed to drive conversions. RapidForms is the go-to solution for developers who want to enhance their online presence without the hassle.
With RapidForms, you can create a variety of forms, from newsletters that keep your audience engaged to waitlists that streamline your operations. The platform’s user-friendly design ensures that your forms will be up and running quickly, providing a smooth experience for both you and your users. Choose RapidForms and watch as your forms become a valuable asset to your website, boosting user interaction and conversion rates.
Visit [our website](https://rapidforms.co/) for more info
Member of [marsx.dev](https://marsx.dev/) family
Got a question or wanna say hi?
I’m on Twitter: [@johnrushx](https://twitter.com/johnrushx/)
| rapidforms |
1,870,206 | Triggering a Popover with Pure CSS (No JavaScript Required) | When building interactive web elements, it's common to rely on JavaScript for tasks like triggering... | 0 | 2024-05-30T10:12:42 | https://dev.to/ivordev/triggering-a-popover-with-pure-css-no-javascript-required-12eb | webdev, css, ui, javascript | When building interactive web elements, it's common to rely on JavaScript for tasks like triggering popovers. However, CSS alone can often suffice for simple interactions. In this post, we'll demonstrate how to create a popover using only CSS. This approach is intended for demonstration purposes and may not replace JavaScript for more complex scenarios.
#### The Popover API
Before diving into the CSS-only solution, it's worth noting that modern browsers support the [Popover API](https://developer.mozilla.org/en-US/docs/Web/API/Popover_API) for handling popovers. This API provides a more robust and accessible way to manage popups, but for educational purposes, we'll explore a pure CSS approach.
#### HTML Structure
Here's the HTML structure we'll use:
```html
<label id="acts-as-button" for="trigger">
<input type="checkbox" name="trigger" id="trigger">
Open
</label>
<div id="popover">
<h1>Popover</h1>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Velit, labore!</p>
</div>
```
In this setup:
- A hidden checkbox (`#trigger`) controls the state of the popover.
- A label (`#acts-as-button`) acts as a button to toggle the checkbox.
- A div (`#popover`) contains the popover content.
#### CSS Styling
Next, we'll apply CSS to style the button and popover, and to control the popover's visibility based on the checkbox state.
```css
#acts-as-button {
background: orange;
color: #845704;
padding: 0.5rem 1rem;
display: inline-block;
cursor: pointer;
width: fit-content;
user-select: none;
}
#acts-as-button:hover,
#acts-as-button:has(#trigger:checked) {
background: darkorange;
}
#trigger {
display: none;
}
#popover {
display: none;
background-color: lightgrey;
width: 300px;
padding: 1rem;
h1,
p {
margin: 0;
}
h1 {
margin-bottom: 0.5rem;
}
}
#acts-as-button:has(#trigger:checked) ~ #popover {
display: block;
}
```
- `#acts-as-button`: Styled to look like a button, with a pointer cursor and a background color.
- `#popover`: Initially hidden (`display: none`), with a light grey background and padding.
- `#acts-as-button:has(#trigger:checked) ~ #popover`: Uses the `:has` pseudo-class to display the popover when the checkbox is checked.
#### Explanation
1. **Button Styling**: The label styled as a button is clickable, which toggles the checkbox.
2. **Popover Visibility**: The `:has` pseudo-class is used to target the label and check if it contains a checked checkbox. When the checkbox is checked, the popover's `display` property is set to `block`.
This method leverages CSS to achieve a simple popover effect without JavaScript. However, remember that this approach is mainly for demonstration. For more robust and accessible solutions, consider using the Popover API or JavaScript.
#### Conclusion
Creating popovers with pure CSS is a great way to understand CSS capabilities and limitations. While this method can be useful for simple cases, for production-ready applications, combining CSS with JavaScript or using built-in browser APIs is recommended for better control and accessibility. | ivordev |
1,869,643 | How to install Python Libraries in Visual Studio Code | Python libraries are essential tools for developers. They contain pre-built code (functions and... | 0 | 2024-05-30T10:12:16 | https://emminex.hashnode.dev/how-to-install-python-libraries-in-visual-studio-code | beginners, python, vscode, installation | Python libraries are essential tools for developers. They contain pre-built code (functions and modules), making coding easier and faster. Libraries help solve common problems and enable developers to build complex applications efficiently.
Visual Studio Code (VS Code) is a popular code editor for Python development. It’s known for its versatility, many extensions, and easy-to-use interface. These features make VS Code ideal for managing and working with Python libraries.
This guide will show you how to install and manage Python libraries effectively using VS Code.
## Prerequisites
Before installing Python libraries in VS Code, let’s make sure you have the necessary tools ready to go:
### Installing Python
1. Head over to the [official Python website](https://www.python.org/downloads/) and download the latest version.
2. Run the installer and follow the on-screen instructions. It’s crucial to check the “Add Python to PATH” box during installation. This allows you to use Python from your terminal or command prompt easily.
### Installing Visual Studio Code:
1. Visit the [official VS Code website](https://code.visualstudio.com/Download) and download the installer for your operating system.
2. Run the installer and follow the setup wizard to install VS Code.
### Setting up the Python Extension:
1. Launch VS Code.
2. Click on the Extensions icon in the Activity Bar on the left (it looks like four squares) or press `Ctrl+Shift+X` (or `CMD+Shift+X` on macOS).
3. Search for “Python” in the marketplace and install the official Microsoft Python extension.
4. If prompted, restart VS Code to make sure the extension is loaded and ready to use.
## Setting Up Your Python Environment
You can think of a Python environment as a self-contained space for your project and its libraries. It’s like a dedicated toolbox where you keep everything you need, organized and separated from other projects.
This is crucial because different projects often need different versions of the same libraries.
Virtual environments are a special kind of Python environment that isolates your project’s libraries from other projects on your computer. This prevents conflicts and makes your projects more reliable.
### Creating a Virtual Environment in VS Code
VS Code makes it easy to create these virtual environments. Now, let’s find out how to go about creating one:
1. **Open the terminal**: In VS Code, go to the menu bar and click on “Terminal” then “New Terminal.” This opens a terminal window right inside VS Code.
2. **Go to your project folder**: If you’re not already here, use the `cd` command to navigate to the folder where your project is located.
3. **Create the environment**: Type the following command and press `ENTER`:
```bash
$ python -m venv env
```
The above command creates a new folder called `env` in your project directory. This folder will hold your virtual environment and all the libraries you install for the project.
### Activating the Virtual Environment
Now, you need to “activate” the virtual environment to tell Python to use it. This is pretty simple:
1. **In the terminal**: Type the following command depending on your operating system:
**On Windows**:
```bash
$ .\\env\\Scripts\\activate
```
**On macOS and Linux**:
```bash
$ source env/bin/activate
```
2. **Check the prompt**: Your terminal prompt should now show the name of your environment in parenthesis (e.g., `(env)`) to indicate it’s active.
Any Python libraries you install using `pip` will be placed inside your virtual environment, keeping your project neatly organized and conflict-free.
## Installing Python Libraries Using the Integrated Terminal
With our virtual environment activated, it’s time to stock up on those libraries that make Python even more powerful! VS Code’s built-in terminal makes this super easy, so you don’t have to leave your editor.
First, click on “Terminal” in the top menu and choose “New Terminal.” A terminal window will pop up right inside VS Code.
### Installing Libraries with `pip`
Once your terminal is open, we’ll use `pip`, Python’s package installer. It’s like your personal shopping cart for Python libraries.
Let’s take a look at the basic command:
```bash
$ pip install <library_name>
```
All you need to do is replace `<library_name>` with the name of the library you want.
For example, you can install Numpy, which is a library for numerical computation and working with arrays, using the command:
```bash
$ pip install numpy
```
Also, you can install Pandas, which is used for data manipulation and analysis using the command:
```bash
$ pip install pandas
```
`pip` will find the library you requested, download it, and install it directly into your virtual environment.
### Verifying the Installation
To verify the libraries you installed using `pip`, you can use the command as follows:
```bash
$ pip list
```
This command will show you a list of all the libraries you have installed, along with their versions. Then you need to go through the list to ensure your libraries are present.
## Managing Libraries With `requirements.txt`
A `requirements.txt` file lists all the dependencies for your project, making it easy to share and install the required libraries.
This file ensures that everyone working on the project uses the same library versions, which helps maintain consistency and avoid compatibility issues.
### How to Create and Use `requirements.txt`
Let’s take a look at how you can create and use `requirements.txt` for your projects:
1. **Making the list**: In VS Code, open the terminal (inside your activated virtual environment) and run the command:
```bash
$ pip freeze > requirements.txt
```
This creates a `requirements.txt` file in your project folder and fills it up with all the installed libraries and their versions.
2. **Installing from the list**: To install those same libraries in a new environment (or on a different computer), open the terminal in that environment and run:
```bash
$ pip install -r requirements.txt
```
`pip` will read the file and install everything for you.
For example, let’s say you installed Numpy and Pandas for your project. Your `requirements.txt` file will look similar:
```bash
numpy==1.23.5
pandas==1.5.1
```
The `==` part tells `pip` to install those exact versions.
Now, anyone with your `requirements.txt` file can set up the same environment you’re using just in a few seconds.
## Using the Visual Studio Code Interface for Library Management
Visual Studio Code offers various extensions that help manage Python libraries directly from the interface. One such extension is the Python Environment Manager, which simplifies the process of managing virtual environments and libraries without the need to use the terminal extensively.
### How to Install and Use an Extension
Let’s take a look at the step-by-step process of installing and using a VS Code extension:
1. **Find your extension**: Open the Extension Marketplace in VS Code (click the square icon on the left sidebar or hit `Ctrl+Shift+X` or `CMD+Shift+X` on a Mac).
2. **Install**: Search for “Python Environment Manager” (or another library management extension that catches the eye) and click “Install.”
3. **Get started**: Once it’s installed, you need to restart VS Code. Then, activate the extension by selecting your project’s interpreter using the command “Python: Select Interpreter” in the Command Palette (`Ctrl+Shift+P` or `CMD+Shift+P`).
4. **Library management made easy**: Now you can explore the extension’s interface. It usually shows you a list of your installed libraries. You can click on a library to see details, update it, or remove it. Installing new libraries is as easy as searching for them by name and clicking “Install.”
### Using the Extension to Manage Python Libraries
After installing the Python Environment Manager extension, managing your Python libraries becomes much easier. You can create and activate virtual environments directly from the interface, providing a seamless workflow.
The extension allows you to search for and install libraries without leaving Visual Studio Code. For instance, you can search for “Numpy” in the extension and click “Install.” This simplifies the process of adding libraries to your project.
Additionally, the extension offers features to update or remove libraries. This ensures you have full control over your project’s dependencies. This eliminates the need to remember various `pip` commands, making library management more accessible and user-friendly.
## Troubleshooting Common Issues
Installing Python libraries isn’t always a smooth ride. Sometimes you might run into some hiccups along the way. But don’t worry, most issues are easy to fix.
Here are some common problems and how to solve them:
**Installation Errors:**
* **Check the basics**: First, make sure you’ve installed Python and `pip` correctly. Also, confirm that Python is added to your system’s PATH.
* **Permission problems**: If you’re getting errors about not having permissions to install, try using the `--user` flag:
```bash
$ pip install --user <library_name>
```
This installs the library only for your user account.
* **Consult the Docs**: If you see an error message you don’t understand, check the library’s official documentation.
**Compatibility Issues:**
* **Version conflicts**: Sometimes, libraries don’t play nicely together because they need different versions of the same dependency. Your best bet is to use virtual environments to keep each project’s library separate.
* **Read the fine print**: Library documentation usually specifies which versions of other libraries they work well with.
* **Requirements file to the rescue**: Pinning specific library versions in your `requirements.txt` file ensures everyone uses the same versions and avoids conflicts. You can add version numbers like this: `numpy==1.20.3`.
## Conclusion
This guide gives you the knowledge and skills to confidently install, manage, and troubleshoot Python Libraries within Visual Studio Code.
You’ve learned the importance of virtual environments for keeping your projects organized. Also, you’ve mastered using the integrated terminal for direct library installation and discovered how extensions can streamline workflow.
With these tools, you’re well-prepared to tackle any Python project.
---
*Thanks for reading! If you found this article helpful (which I bet you did 😉), got a question or spotted an error/typo... do well to leave your feedback in the comment section.*
*And if you’re feeling generous (which I hope you are 🙂) or want to encourage me, you can put a smile on my face by getting me a cup (or thousand cups) of coffee below. :)*
* [***Buy Me a Coffee***](https://www.buymeacoffee.com/emminex23)
*Also, feel free to connect with me via* [***LinkedIn***](https://www.linkedin.com/in/emmanueloyibo2394/)*.* | emminex |
1,870,205 | Decoding Network Traffic: The Vital Role of Telemetry in Understanding Network Activity | Telemetry, in simple terms, is like having a conversation with machines or systems located far away.... | 0 | 2024-05-30T10:11:23 | https://keploy.io/blog/technology/decoding-network-traffic-telemetry-with-network-activity | webdev, programming, ai, productivity |
Telemetry, in simple terms, is like having a conversation with machines or systems located far away. It's about collecting data from these distant sources to better understand how they're performing. Think of it as a health check-up, but for machines or systems instead of people.
This technology plays a crucial role in a variety of fields. In agriculture, it helps monitor crop conditions; in healthcare, it keeps tabs on patient metrics like blood pressure and blood sugar levels; and in weather forecasting, it's indispensable for predicting mother nature's next move.
So, it's a bit like having a network of digital spies scattered in different areas, each sending back valuable information that lets us peek into the functioning of systems we can't be physically present at.
**Telemetry in IT**
In the world of technology and complex software, telemetry is crucial for software optimization. It involves collecting data from various software deployments to understand performance in different environments. This helps in quickly identifying and fixing issues, leading to better, more adaptable software. For example, analyzing logs from different deployments can reveal specific areas for improvement or just tracing data for user engagement.
https://keploy.io/wp/wp-content/uploads/2024/05/ebpf1-768x522.webp
**But monitoring does the same thing, right?**
Although they are terms that are used interchangeably, there are slight hierarchial differences between them.
Monitoring, in general, is used to detect potential issues in the system using things like application metrics and network usage
Telemetry does a lot of things, from troubleshooting issues to understanding user behavior and system performance. It also uses wider parameters for its activities.
So, we can say that monitoring is a subset of telemetry. It provides deeper monitoring capabilities and system metrics.
**Network Telemetry**
Imagine having a enterprise level network. It becomes crucial for the admin to constantly monitor the data flow and network traffic that is going through the endpoints. This is where network telemetry comes in.
Network Telemetry is a subset of telemetry. It involves gathering of data from sources like routers, switches, servers and applications and how data moves through them.
One method to achieve this is through capture network traffic and analyse them. These tools provide information about network bandwidth, latency, packet loss, and other performance metrics.
**Capturing Network Traffic**
Capturing network traffic is a fundamental aspect of network telemetry. It involves monitoring and recording the data packets that travel across a network. This data can include packet headers, payload, source and destination IP addresses, port numbers, protocol types, and more. Analyzing this captured data helps in identifying traffic patterns, detecting anomalies, diagnosing network issues, and ensuring network security.
**Role of eBPF in Network Telemetry**
https://keploy.io/wp/wp-content/uploads/2024/05/ebpf2-768x529.webp
Before eBPF, we had tcpdump, which tracked and recorded HTTP packets. The problem was that it did it in multiple sessions which we had to arrange, creating a tedious task. This is where precisely eBPF came in. Released in 2014, eBPF was a paradigm shift in network telemetry. It allowed executing code directly into the Linux Kernel without actually altering the code in it. More specifically, it allowed packet filtering and capturing traffic, through which automatically removed the irrelevant data,enabling you to process and filter your application traffic with only a limited effect on performance, even when throughput is high.
eBPF lets you add a hook to kernel system calls(syscalls) and helper functions, allowing you to provide visibility into traffic payloads and function results (success/failure).
As a result, with eBPF, you can enable complex functionality and processing of network traffic, including layer-7 filtering, independently of the application sending data to the kernel.
**Tools for using eBPF**
Numerous tools exist that facilitate the interaction with and creation of interfaces for developers to utilize eBPF code. Additionally, various programming languages can be employed to write or interface with eBPF code. Let's look at some tools like that:
**BCC:** BCC(BPF Compiler Collection) is a toolkit used for efficient kernel tracing and manipulation programs. It makes eBPF programs easier to write as well as creating front-ends with Python, Lua etc. It makes performance analysis and network traffic control.
**libbpf:** libbpf is a C based library that has a BPF loader. It takes the object compiler BPF object file and loads it into the Linux Kernel. It does the job of loading, verifying and attaching BPF programs to kernel hooks so that the developer should only focus on BPF program correctness and efficiency.
**bpftrace:** A high-level tracing language for Linux eBPF. It's great for ad-hoc kernel and user space tracing. With bpftrace, you can write and execute scripts to analyze performance issues, track down problems, or understand software behavior.
Enough talk! Let's code to make sense of everything above!
**Sample Code**
For this demonstration, we will utilize an example sourced from the official BCC GitHub repository.
This script is a Python program using BCC (BPF Compiler Collection) for tracing TCP IPv4 connection attempts in Linux using eBPF (Extended Berkeley Packet Filter) with embedded C code. It's designed to capture all IPv4 connection attempts, successful or not.
**Prerequisites**
Operating System: A Linux distribution, as BCC is Linux-specific.
Python: Make sure Python 3.10+ is installed on your machine
BCC Installation:
Install Build dependencies:
**For Bionic(18.04 LTS):**
sudo apt-get -y install zip bison build-essential cmake flex git libedit-dev \ libllvm6.0 llvm-6.0-dev libclang-6.0-dev python zlib1g-dev libelf-dev libfl-dev python3-setuptools \ liblzma-dev arping netperf iperf
**For Focal(20.04.1 LTS):**
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \ libllvm12 llvm-12-dev libclang-12-dev python zlib1g-dev libelf-dev libfl-dev python3-setuptools \ liblzma-dev arping netperf iperf
**For Hirsute(21.04) or Impish (21.10):**
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \ libllvm11 llvm-11-dev libclang-11-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \ liblzma-dev arping netperf iperf
**For Jammy(22.04):**
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \ libllvm14 llvm-14-dev libclang-14-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \ liblzma-dev libdebuginfod-dev arping netperf iperf
**For Lunar Lobster(23.04):**
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \ libllvm15 llvm-15-dev libclang-15-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \ liblzma-dev libdebuginfod-dev arping netperf iperf libpolly-15-dev
**For other versions:**
sudo apt-get -y install zip bison build-essential cmake flex git libedit-dev \ libllvm3.7 llvm-3.7-dev libclang-3.7-dev python zlib1g-dev libelf-dev python3-setuptools \ liblzma-dev arping netperf iperf
**For Lua support:**
sudo apt-get -y install luajit luajit-5.1-dev
**Install and compile BCC:**
```
git clone https://github.com/iovisor/bcc.git
mkdir bcc/build; cd bcc/build
cmake ..
make
sudo make install
cmake -DPYTHON_CMD=python3 .. # build python3 binding
pushd src/python/
make
sudo make install
popd
```
**Code:**
```
#!/usr/bin/python
from __future__ import print_function
from bcc import BPF
from bcc.utils import printb
# define BPF program
bpf_text = """
#include <uapi/linux/ptrace.h>
#include <net/sock.h>
#include <bcc/proto.h>
BPF_HASH(currsock, u32, struct sock *);
int kprobe__tcp_v4_connect(struct pt_regs *ctx, struct sock *sk)
{
u32 pid = bpf_get_current_pid_tgid();
// stash the sock ptr for lookup on return
currsock.update(&pid, &sk);
return 0;
};
int kretprobe__tcp_v4_connect(struct pt_regs *ctx)
{
int ret = PT_REGS_RC(ctx);
u32 pid = bpf_get_current_pid_tgid();
struct sock **skpp;
skpp = currsock.lookup(&pid);
if (skpp == 0) {
return 0; // missed entry
}
if (ret != 0) {
// failed to send SYNC packet, may not have populated
// socket __sk_common.{skc_rcv_saddr, ...}
currsock.delete(&pid);
return 0;
}
// pull in details
struct sock *skp = *skpp;
u32 saddr = skp->__sk_common.skc_rcv_saddr;
u32 daddr = skp->__sk_common.skc_daddr;
u16 dport = skp->__sk_common.skc_dport;
// output
bpf_trace_printk("trace_tcp4connect %x %x %d\\n", saddr, daddr, ntohs(dport));
currsock.delete(&pid);
return 0;
}
"""
# initialize BPF
b = BPF(text=bpf_text)
# header
print("%-6s %-12s %-16s %-16s %-4s" % ("PID", "COMM", "SADDR", "DADDR",
"DPORT"))
def inet_ntoa(addr):
dq = b''
for i in range(0, 4):
dq = dq + str(addr & 0xff).encode()
if (i != 3):
dq = dq + b'.'
addr = addr >> 8
return dq
# filter and format output
while 1:
# Read messages from kernel pipe
try:
(task, pid, cpu, flags, ts, msg) = b.trace_fields()
(_tag, saddr_hs, daddr_hs, dport_s) = msg.split(b" ")
except ValueError:
# Ignore messages from other tracers
continue
except KeyboardInterrupt:
exit()
# Ignore messages from other tracers
if _tag.decode() != "trace_tcp4connect":
continue
printb(b"%-6d %-12.12s %-16s %-16s %-4s" % (pid, task,
inet_ntoa(int(saddr_hs, 16)),
inet_ntoa(int(daddr_hs, 16)),
dport_s))
```
Run the program:
sudo python tcpv4connect.py
**Code Breakdown:**
**BPF Program:** The BPF program is written in C. It is embedded in a script in form of a multiline string.
**kprobe__tcp_v4_connect:** A kprobe(kernel probe) is attached to '**tcp_v4_connect**' whenever a TCP connection is established by a process, whether it is succeeding or not. This function records the socket information associated with a PID.
kretprobe_tcp_v4_connect: A kretprobe(return probe) is attached to the same 'tcp_v4_connect' function and is triggered whenever it returns a response. It retrieves the socket info and extracts the connections details and prints it using '**bpf_trace_printk**'.
In the rest of Python Script, The script enters an infinite loop where it reads output messages from the BPF program (via b.trace_fields()).
-It filters out messages from other BCC programs and ignores non-relevant data.
-For relevant messages (tagged with "trace_tcp4connect"), the script parses and displays the connection details in a human-readable format.
**OUTPUT:**
https://keploy.io/wp/wp-content/uploads/2024/05/ebpf3.webp
**PID:** the identifier for the process that initiated the connection.
**COMM:** the name of process or command.
**SADDR (Source Address):** The local IP address of the machine where the connections are being initiated.
**DADDR:** The remote IP address to which the connection is being made.
The remote IP address to which the connection is being made. These are varied and could represent different web services or servers.
**DPORT:** The port number at the destination address. In all these cases, the port is 443, which is commonly used for HTTPS traffic, indicating secure web connections.
**SUMMARY**
Network telemetry functions as a network sleuth, collecting information and insights regarding the network's operation and efficiency. This tool equips network managers with the necessary resources to ensure their network infrastructure remains strong and effective.
Thus, for both seasoned network experts and those new to networking, network telemetry is an essential tool for overseeing and enhancing your network.
**FAQ's**
**What is telemetry, and why is it important in network monitoring?**
Telemetry involves collecting data from remote sources to monitor network performance, aiding in proactive issue detection and optimization.
**How does network telemetry differ from traditional monitoring approaches?**
Network telemetry offers deeper insights than traditional monitoring by capturing detailed data on traffic patterns, latency, and packet loss in real-time.
**What are the benefits of using eBPF for network telemetry?**
eBPF enables efficient network telemetry by allowing code execution within the Linux Kernel, facilitating advanced packet filtering and traffic analysis.
**What are some common challenges in implementing network telemetry, and how can they be addressed?**
Challenges in network telemetry implementation include ensuring compatibility with diverse network environments and managing the overhead of data collection without impacting performance. | keploy |
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