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1,916,841 | Billie Eilish AI Art: Develop AI Tool for AI Art Creation | Uncover the mesmerizing allure of Billie Eilish AI art. Explore the comprehensive guide on developing... | 0 | 2024-07-09T09:49:36 | https://dev.to/novita_ai/billie-eilish-ai-art-develop-ai-tool-for-ai-art-creation-1all | Uncover the mesmerizing allure of Billie Eilish AI art. Explore the comprehensive guide on developing an AI art generator for AI art.
## Introduction
Billie Eilish has become a household name in the music industry, known for her unique sound and style. Recently, she has made headlines as the subject of AI art pieces created by artists using AI tools and techniques, which has also inspired fans to create.
In this blog, we will delve into the concept of AI art, its connection to Billie Eilish, and how her influence has impacted this emerging field. We will also discuss the emergence of deepfake art in the music industry, how AI tools are being used to create stunning Billie Eilish AI artwork, and how to develop your own AI art generator. Lastly, we will speculate on what the future holds for AI art in music and beyond. Join us as we take a closer look at the magic of Billie Eilish AI Art.
## Understanding Billie Eilish AI Art
The fusion of Billie Eilish’s persona with AI art pays homage to her unique style, fascinating the world of AI art enthusiasts.
### What is Billie Eilish AI Art and How It Be Created?
AI art refers to art created using artificial intelligence algorithms. In Billie Eilish’s case, AI was used to generate unique visuals that captured her essence and style. The algorithm analyzed her music, videos, and interviews to visually represent her personality and brand.
### The Influence of Billie Eilish on AI Art
Billie Eilish’s unique style aligns with the potential of AI art, showcasing an unconventional and expressive approach. Her distinctive green hair serves as a source of fascination for AI art enthusiasts, propelling them to explore new artistic realms. Through this, AI art enthusiasts push the boundaries of creativity, delving into uncharted territory and redefining artistic expression.
## The Emergence of Deepfake Art in the Music Industry
Leveraging machine learning, and deepfake art in the music industry raises ethical considerations and transforms artistic boundaries
### Defining Deepfake Art
Utilizing machine learning, deepfake art creates deceptive pieces that have potential misuse, challenging conventional artistic style. The fusion of deepfake technology with art presents a cautionary exploration of new artistic territories.
### The Proliferation of Deepfake Art in Popular Culture
Fascination and caution arise in the art world due to the proliferation of deepfake art. Its accessibility expands artistic boundaries, fueling both fascination and caution. The fusion of deepfake art with iconic images creates new artistic possibilities, while the potential misuse of this technology reshapes artistic expression boundaries.
## Top 3 AI Tools Used in Creating Billie Eilish AI Art
AI art creation involves leveraging advanced AI tools, like novita.ai, and chatgpt, to produce one-of-a-kind artistic pieces. Here are the best three AI tools in 2024 for Billie Eilish AI art creation.
### Leonardo AI
Leonardo AI empowers users to generate visually stunning assets with remarkable efficiency and style. This tool stands out for its ability to create distinctive art pieces that are both unique and professional-grade, which is an ideal choice for those seeking to explore the fusion of technology with traditional artistic techniques.
**Features:**
- Speed and Efficiency
- Customization
- Simplified Mastery
### Canva AI
Canva AI is an innovative online design tool that integrates artificial intelligence to assist in the creation of visually appealing artwork. It offers a user-friendly environment where you can easily manipulate colors, shapes, and patterns to craft unique pieces.
**Features:**
- User-Friendly Interface
- Versatility
- Writing Assistance
### Novita AI
**[Novita AI](https://novita.ai/)** is an emerging API platform that features over 100 APIs for developers like you for seamless integration. Moreover, If you have specific requirements for a model, you can train one through their API or upload your private model to achieve your objectives. Through Novita AI, you can find more fun in your AI tool.
**Features:**
- Hundreds of APIs for AI tool developing
- 1000+ models in various styles
- Hassle-free scalability
## How to Create Billie Eilish AI Art in Stable Diffusion
It’s a straightforward process to create Billie Eilish AI art through innumerable AI art generators in the market. Choose the one that fits your preference and start the creation. Here I recommend Novita AI.
### Step-by-Step Guide
- Step 1: Open the **[Novita AI](https://novita.ai/)** website and create an account.
- Step 2: Navigate to “**[txt2img](https://novita.ai/playground#txt2img)**” in its “playground”.
- Step 3: Select a model you like from the list. Novita AI offers 1000+ pre-trained models including Stable Diffusion XL, Stable Diffusion 3, and more.
- Step 4: Enter the “ Prompt” to describe what you want your Billie Eilish AI artwork to be, like her behavior, hairstyle, and more. The more detailed you describe, the better the output will be.
- Step 5: Adjust the parameters below including the size and the number of the output.
- Step 6: Click “Generate” and wait for your Billie Eilish AI artwork.
### Develop Your Own AI Art Generator
Although using AI tools in the market to create Billie Eilish's AI artwork is convenient, some of them cost a lot, even with unsatisfied effects. It must be a long-term benefit to develop your own AI art generator for Billie Eilish's art creation. As mentioned before, Noiva AI provides 100+ APIs for seamless integration.
- Step 1: Navigate to “**[API](https://novita.ai/reference/image_generator/text_to_image.html)**” and obtain the API key you want in the left list. The APIs in Novita AI include **[Text to Image](https://blogs.novita.ai/ultimate-guide-to-text-to-image-api-intefration/)** for image generation, Large Language Model (**[LLM](https://blogs.novita.ai/mastering-llm-api-gateway-your-ultimate-guide/)**) for AI chatbot, Text-to-speech (TTS) for Billie Eilish song cover, and so on.
- Step 2: Set up your development environment and use the API key you get to make the API request.
- Step 3: Wait for the response and figure out the one you need.
- Step 4: Before operating your project, have everything completely checked.
Here is a sample API request for Text to Image:
```
curl --location 'https://api.novita.ai/v3/async/txt2img' \
--header 'Authorization: Bearer {{key}}' \
--header 'Content-Type: application/json' \
--data '{
"extra": {
"response_image_type": "jpeg"
},
"request": {
"prompt": "a cute dog",
"model_name": "sd_xl_base_1.0.safetensors",
"negative_prompt": "nsfw, bottle,bad face",
"width": 1024,
"height": 1024,
"image_num": 2,
"steps": 20,
"seed": -1,
"clip_skip": 1,
"sampler_name": "Euler a",
"guidance_scale": 7.5
}
}'
```
## The Future of AI Art in Music and Beyond
The increasing demand for AI-generated creations indicates a promising future for AI art in the music industry and beyond.
### Ethical Consideration of AI Deepfake Art
Deepfake technology can be used to create images of individuals without their consent, potentially infringing on their privacy rights. This is particularly concerning when used to create content that could be misleading.
### Where is AI Art Headed?
AI art is paving the way for a new era of creativity, showcasing the fascination of deepfake art. AI art brings unconventional styles to life through AI art generators like Novita AI, pushing the boundaries of artistic expression.
## Conclusion
In the world of art and music, technology continues to push boundaries and create new possibilities. Billie Eilish's AI art is a prime example of this intersection between creativity and artificial intelligence. Developing your own AI art generator, try to explore a whole new world of artistic expression. As AI technology continues to advance, we can expect to see even more groundbreaking collaborations between artists and AI tools.
> Originally published at [Novita AI](https://blogs.novita.ai/billie-eilish-ai-art-develop-ai-tool-for-ai-art-creation/?utm_source=dev_image&utm_medium=article&utm_campaign=billie-eilish)
> [Novita AI](https://novita.ai/?utm_source=dev_image&utm_medium=article&utm_campaign=unveiling-billie-eilish-ai-art-a-magical-exploration) is the all-in-one cloud platform that empowers your AI ambitions. With seamlessly integrated APIs, serverless computing, and GPU acceleration, we provide the cost-effective tools you need to rapidly build and scale your AI-driven business. Eliminate infrastructure headaches and get started for free — Novita AI makes your AI dreams a reality.
| novita_ai | |
1,916,842 | Healthcare Coding Certification - ASAP Kerala | ASAP Kerala is an undertaking by the Higher Education Department of the Kerala Government that... | 0 | 2024-07-09T06:26:24 | https://dev.to/asapkerala/healthcare-coding-certification-asap-kerala-1ae | career | ASAP Kerala is an undertaking by the Higher Education Department of the Kerala Government that focuses on training students to improve their employability.
Medical coding transforms healthcare diagnosis, procedures, medical services, and equipment into universal medical alphanumeric codes. The diagnoses and procedure codes are taken from medical record documentation, such a transcription of physician's notes, laboratory and radiologic results.
Click here more information: [][(https://asapkerala.gov.in/course/certificate-program-in-medical-coding-medical-billing/)]
| asapkerala |
1,916,843 | Mastering SOLID Principles with Go Examples | The SOLID principles are a set of design guidelines that help developers write more maintainable, scalable, and testable code. | 0 | 2024-07-09T06:26:36 | https://dev.to/plutov/mastering-solid-principles-with-go-examples-13pf | go, softwaredesign | ---
title: Mastering SOLID Principles with Go Examples
published: true
description: The SOLID principles are a set of design guidelines that help developers write more maintainable, scalable, and testable code.
tags: go, softwaredesign
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/oylzvabb8ecqrf8eu3gi.jpeg
# Use a ratio of 100:42 for best results.
# published_at: 2024-07-09 06:25 +0000
---
The SOLID principles are a set of design guidelines that help developers write more maintainable, scalable, and testable code.
[Read the full article on packagemain.tech](https://packagemain.tech/p/mastering-solid-principles-with-go) | plutov |
1,916,844 | Understanding std::unique_lock and std::shared_lock in C++ | Concurrency in programming allows multiple threads to execute code simultaneously, which can... | 0 | 2024-07-09T06:27:10 | https://dev.to/vivekyadav200988/understanding-stduniquelock-and-stdsharedlock-in-c-73p | multithreading, cpp, criticalsection, locks | Concurrency in programming allows multiple threads to execute code simultaneously, which can significantly improve the performance of applications, especially on multi-core processors. However, with the increased complexity of managing multiple threads, ensuring thread safety becomes crucial. C++ provides several synchronization primitives to manage access to shared resources in a multithreaded environment, including std::unique_lock and std::shared_lock.
## 1. Introduction to Mutexes and Locks
A mutex (short for mutual exclusion) is a synchronization primitive that allows only one thread to access a resource at a time, ensuring that concurrent operations do not interfere with each other. In C++, mutexes are provided by the <mutex> header, and they can be used with various types of locks to control access.
A lock is an object that manages the ownership of a mutex. By using locks, programmers can ensure that only one thread accesses the protected resource at a time, preventing race conditions and ensuring data integrity.
## 2. std::unique_lock
std::unique_lock is a type of lock that provides exclusive ownership of a mutex. This means that only one thread can hold a std::unique_lock on a particular mutex at any given time. When a thread acquires a std::unique_lock, it has exclusive access to the resource protected by the mutex, blocking other threads from acquiring the same mutex until the lock is released.
**Key Characteristics:**
**Exclusive Ownership**: Only one thread can hold the lock at a time.
**Flexible Lock Management**: std::unique_lock provides various constructors and member functions to manage the lock, such as deferred locking, timed locking, and lock ownership transfer.
**RAII**: The lock follows the RAII (Resource Acquisition Is Initialization) idiom, automatically releasing the mutex when the std::unique_lock object is destroyed.
**Example**:
```
#include <iostream>
#include <thread>
#include <mutex>
std::mutex mtx;
void thread_function() {
std::unique_lock<std::mutex> lock(mtx);
// Critical section
std::cout << "Thread " << std::this_thread::get_id() << " has the lock.\n";
// The lock is automatically released when 'lock' goes out of scope
}
int main() {
std::thread t1(thread_function);
std::thread t2(thread_function);
t1.join();
t2.join();
return 0;
}
```
In this example, std::unique_lock ensures that only one thread can execute the critical section at a time.
## 3. std::shared_lock
std::shared_lock is a type of lock that provides shared ownership of a std::shared_mutex. Unlike std::unique_lock, multiple threads can hold a std::shared_lock on the same std::shared_mutex simultaneously. This is useful in scenarios where multiple threads need to read a shared resource concurrently without modifying it.
**Key Characteristics:**
**Shared Ownership**: Multiple threads can hold the lock at the same time.
**Read-Only Access**: Suitable for scenarios where threads only need to read a shared resource.
**Compatibility with std::shared_mutex**: Works with std::shared_mutex, which supports both shared and exclusive locking.
**Example**:
```
#include <iostream>
#include <thread>
#include <shared_mutex>
std::shared_mutex sh_mtx;
void read_function() {
std::shared_lock<std::shared_mutex> lock(sh_mtx);
// Shared (read) access to the resource
std::cout << "Thread " << std::this_thread::get_id() << " is reading.\n";
// The lock is automatically released when 'lock' goes out of scope
}
int main() {
std::thread t1(read_function);
std::thread t2(read_function);
t1.join();
t2.join();
return 0;
}
```
In this example, std::shared_lock allows both threads to hold the lock simultaneously, enabling concurrent read access to the shared resource.
## 4. Key Differences Between std::unique_lock and std::shared_lock
**1. Mutex Type:**
- std::unique_lock works with std::mutex, std::timed_mutex, std::recursive_mutex, and std::recursive_timed_mutex.
- std::shared_lock works specifically with std::shared_mutex (or std::shared_timed_mutex).
**2. Locking Behavior:**
- std::unique_lock provides exclusive access. Only one std::unique_lock can hold the mutex at a time.
- std::shared_lock provides shared access. Multiple std::shared_lock instances can hold the mutex simultaneously, but it cannot coexist with a std::unique_lock on the same mutex.
**3. Use Case:**
- Use std::unique_lock when you need to write or modify a shared resource.
- Use std::shared_lock when you only need to read a shared resource and want to allow other readers to access it concurrently.
**4. Performance:**
- std::shared_lock can improve performance in scenarios with many readers and few writers, as it allows concurrent reads, reducing contention compared to std::unique_lock.
## 5. Appropriate Use Cases
**1. std::unique_lock:**
- When modifying a shared resource.
- When performing operations that must not be interrupted by other threads.
- When exclusive access to a resource is required.
**2. std::shared_lock:**
- When reading a shared resource.
- When multiple threads need to read data simultaneously.
- When reducing contention in read-heavy workloads.
## 6. Combining std::shared_lock and std::unique_lock
In real-world applications, it is common to have a mix of read and write operations on shared resources. std::shared_mutex allows combining std::shared_lock for read operations and std::unique_lock for write operations, providing a balance between concurrency and safety.
**Example**:
```
#include <iostream>
#include <thread>
#include <shared_mutex>
#include <vector>
std::shared_mutex sh_mtx;
std::vector<int> shared_data;
void write_function() {
std::unique_lock<std::shared_mutex> lock(sh_mtx);
shared_data.push_back(1); // Modify the shared resource
std::cout << "Thread " << std::this_thread::get_id() << " has written data.\n";
}
void read_function() {
std::shared_lock<std::shared_mutex> lock(sh_mtx);
for (int value : shared_data) {
std::cout << "Thread " << std::this_thread::get_id() << " read value: " << value << "\n";
}
}
int main() {
std::thread writer(write_function);
std::thread reader1(read_function);
std::thread reader2(read_function);
writer.join();
reader1.join();
reader2.join();
return 0;
}
```
In this example, the writer thread uses std::unique_lock to modify the shared data, while the reader threads use std::shared_lock to read the data concurrently.
## 7. Conclusion
Understanding the differences between std::unique_lock and std::shared_lock is essential for writing efficient and thread-safe C++ programs. std::unique_lock provides exclusive access to a resource, suitable for write operations, while std::shared_lock allows multiple threads to read a resource concurrently, enhancing performance in read-heavy scenarios. By using these locks appropriately, developers can ensure data integrity and optimize the performance of their multithreaded applications. | vivekyadav200988 |
1,916,845 | dona paper plate machine | Our hydraulic paper plate machine offers efficient and robust solutions for high-quality paper plate... | 0 | 2024-07-09T06:27:42 | https://dev.to/donaplate_machine_af298a8/dona-paper-plate-machine-36n | Our [hydraulic paper plate machine](https://www.donaplatemachine.com/product/hydraulic-paper-plate-making-machine/
) offers efficient and robust solutions for high-quality paper plate production. The [all-in-one paper plate machine](https://www.donaplatemachine.com/product/all-in-one-paper-plate-machine/
) combines cutting-edge technology with ease of use, ensuring seamless operation from start to finish. Located on Raj Nagar Extension Road, opposite Ghaziabad, Delhi NCR – 110077, our facility provides state-of-the-art equipment designed to meet diverse production needs. Whether you require a compact unit or a more comprehensive setup, our paper plate machines deliver precision and reliability, catering to both small-scale and large-scale manufacturing requirements. Visit us to experience unparalleled service and innovative solutions in paper plate production.
| donaplate_machine_af298a8 | |
1,916,846 | Machine Learning for Predictive Maintenance | In today’s fast-paced industrial landscape, equipment downtime can lead to significant financial... | 0 | 2024-07-09T06:28:20 | https://dev.to/fizza_c3e734ee2a307cf35e5/machine-learning-for-predictive-maintenance-2fo6 | machinelearning, datascience |
In today’s fast-paced industrial landscape, equipment downtime can lead to significant financial losses and operational inefficiencies. Predictive maintenance, powered by machine learning (ML), is transforming how industries manage and maintain their assets. This blog delves into the role of machine learning in predictive maintenance and highlights the importance of understanding [artificial intelligence course prerequisites](https://www.bostonschoolofanalytics.com/) for those aspiring to master this technology.
**What is Predictive Maintenance?**
Predictive maintenance refers to the use of data analysis tools and techniques to predict when equipment failure might occur, allowing for timely maintenance before the failure happens. This approach contrasts with reactive maintenance fixing equipment after it breaks and preventive maintenance regularly scheduled maintenance regardless of equipment condition.
_The Importance of Predictive Maintenance_
Predictive maintenance offers several benefits:
- **Cost Reduction:** By preventing unexpected equipment failures, predictive maintenance helps reduce repair costs and minimize downtime.
- **Increased Equipment Lifespan:** Timely maintenance can extend the life of machinery and equipment.
- **Operational Efficiency:** Reducing downtime and optimizing maintenance schedules improve overall operational efficiency.
- **Safety:** Identifying potential issues before they become critical enhances workplace safety.
**How Machine Learning Enhances Predictive Maintenance**
Machine learning algorithms analyze data from various sources to predict equipment failures accurately. Here’s how ML contributes to predictive maintenance:
1. **Data Collection and Analysis**
ML models collect and analyze data from sensors embedded in machinery. This data includes temperature, vibration, pressure, and other critical parameters. By continuously monitoring these parameters, ML algorithms can identify patterns and anomalies that indicate potential failures.
2. **Failure Prediction**
Using historical data, machine learning models can predict when a piece of equipment is likely to fail. Techniques such as regression analysis, time-series forecasting, and anomaly detection are commonly used to predict failures.
3. **Maintenance Optimization**
ML algorithms can optimize maintenance schedules by predicting the best times for maintenance activities. This ensures that maintenance is performed just in time to prevent failures, reducing unnecessary maintenance and operational interruptions.
4. **Anomaly Detection**
Machine learning models can detect anomalies in equipment behavior that may not be apparent to human operators. Early detection of these anomalies allows for proactive maintenance, preventing minor issues from escalating into major failures.
_Case Studies: ML in Predictive Maintenance_
**General Electric (GE)**
GE uses machine learning to enhance its predictive maintenance capabilities for industrial equipment. By analyzing data from sensors on turbines, jet engines, and other machinery, GE can predict potential failures and optimize maintenance schedules, reducing downtime and maintenance costs.
**Siemens**
Siemens leverages ML for predictive maintenance in its manufacturing plants. The company uses sensor data and ML algorithms to predict equipment failures and schedule maintenance activities, improving operational efficiency and reducing costs.
_Artificial Intelligence Course Prerequisites for Predictive Maintenance_
To effectively apply machine learning in predictive maintenance, a solid understanding of AI is crucial. Here are some artificial intelligence course prerequisites to consider:
- _Mathematics:_ A strong foundation in mathematics, particularly in statistics, probability, and linear algebra, is essential for understanding ML algorithms.
- _Programming Skills:_ Proficiency in programming languages such as Python or R is necessary for implementing ML models and working with industrial data.
- _Data Science Fundamentals:_ Knowledge of data science concepts, including data preprocessing, feature engineering, and model evaluation, is important.
- _Machine Learning Basics:_ Understanding the basics of machine learning, including supervised and unsupervised learning, is a key prerequisite.
- _Domain Knowledge: _Familiarity with the specific industrial domain where predictive maintenance will be applied can enhance the effectiveness of ML models.
**Conclusion**
Machine learning is revolutionizing predictive maintenance by enabling accurate failure predictions and optimizing maintenance schedules. This technology helps industries reduce costs, increase equipment lifespan, and improve operational efficiency. For those interested in mastering machine learning for predictive maintenance, understanding the [artificial intelligence course prerequisites](https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/) is a crucial first step. With the right knowledge and skills, you can lead the way in implementing advanced predictive maintenance solutions that drive industrial innovation and efficiency. | fizza_c3e734ee2a307cf35e5 |
1,916,847 | Mastering Automation Testing: Low Code vs No Code | The surging demand for hyper-automation and IT modernization has encountered a significant hurdle:... | 0 | 2024-07-09T06:28:36 | https://dev.to/berthaw82414312/mastering-automation-testing-low-code-vs-no-code-44nc | automationtesting, lowcodetesting, nocodetesting, lowcodeautomation | The surging demand for hyper-automation and IT modernization has encountered a significant hurdle: skilled developers’ scarcity. Enterprises find themselves grappling with the challenge of aligning with these transformative trends due to a limited availability of talent with specialized technical skills. This scarcity, in turn, relegates numerous IT projects to the back burner, consigning them to the “pending” file.
Consequently, operational inefficiencies persist, and the critical metric of time-to-market, vital for maintaining competitiveness in the business landscape, is compromised.
In response to these pressing challenges, the technology landscape has witnessed the emergence of [low-code and no-code test automation ](https://www.headspin.io/blog/low-code-vs-no-code-test-automation)solutions. These innovative alternatives offer a pragmatic and convenient departure from the conventional development process, providing a potential remedy to the resource shortage dilemma.
## How Low-Code Automation Works
Low-code automation platforms empower users to automate application processes with minimal coding expertise. These platforms feature user-friendly visual modules incorporating commonly used components, facilitating quick and easy utilization.
While coding proficiency benefits intricate or specific interactions, these platforms primarily cater to individuals with some programming knowledge seeking to expedite their automation projects.
Although accessible to non-technical users, it’s important to recognize that a technical expert may be necessary, as coding becomes essential at certain junctures in most automation projects. In essence, these platforms significantly diminish the reliance on traditional hand-coding, enhancing business productivity.
## Exploring the Advantages of Low-Code Platforms
As the popularity of low-code platforms continues to rise, several compelling reasons drive their adoption:
- Ignites digital innovation and facilitates transformation
- Shields against the rapid evolution of technology
- Prevents the accumulation of technical debt
- Empowers citizen developers to enhance internal processes
## Benefits of Low-Code Test Automation
Unlocking the potential of low-code test automation comes with several advantages:
- User-Friendly: With minimal coding knowledge required, it becomes accessible for citizen developers.
- Enhanced Productivity: The drag-and-drop interface streamlines the process, reducing development time and yielding quicker results.
- Increased Agility: Easy modification of processes allows for agile adjustments without the complexities associated with altering intricate code structures.
## Challenges in Low-Code Test Automation
Despite its advantages, low-code test automation faces certain limitations:
- Dependency on Developers: The involvement of developers is necessary for handling complex test scenarios, slowing down the process.
- Limited Customization Options: Depending on the platform, there may be constraints on the extent of customization available.
## Understanding No-Code/Codeless Automation
[No-code automation](https://www.headspin.io/blog/codeless-appium-test-automation-with-headspin) platforms empower technical and non-technical users to automate processes without resorting to traditional computer programming. Through intuitive graphical user interfaces featuring drag-and-drop functionality, users replicate computer interactions seamlessly.
In contrast to low-code applications, no-code platforms eliminate the requirement for technical expertise. The overarching objective is to surmount conventional IT development constraints such as time, resources, and costs, fostering agility in business processes.
While there might be a misconception that no-code platforms are limited to simple automation projects, they have evolved to meet diverse business demands. Modern no-code platforms boast robust features and integrations, enabling users to automate various processes tailored to specific business needs within any organization.
## Embracing No-Code Platforms: Reasons and Benefits
As the popularity of no-code platforms surges among non-tech users, there are compelling reasons to opt for these solutions:
- Accelerated Development: No-code platforms facilitate a faster turnaround when constructing software products.
- Engineer-Free Product Creation: The ability to craft products without requiring engineers streamlines the development process.
- User Empowerment: Users have greater control over their product outcomes, reducing dependence on developers.
- Accessibility and Affordability: With a visual interface provided by no-code platforms, development becomes more accessible and cost-effective on a unified platform.
## Challenges in No-Code Test Automation
Despite its advantages, no-code test automation comes with certain limitations:
- Limited Software Functionality: The scope of software functionality is confined to what the platform provides.
- Maintenance Complexity: Difficulty arises in maintenance if tests lack modularity or readability.
## Navigating the Divide: Differences Between Low-Code and No-Code Automation
While the line between no-code and low-code platforms may seem faint, crucial distinctions set them apart:
**Programming Knowledge**
- No-Code: Requires no coding skills, offering a user-friendly approach beyond low-code platforms.
- Low-Code: Allows developers to delve into coding for specific customization, catering to those with tangible coding skills.
**Automation Design**
- No-Code: Empowers end-users to shape automation processes through intuitive drag-and-drop interfaces.
- Low-Code: Despite a similar deployment model, it relies more on code for designing automated processes.
**Developer Dependency**
- No-Code: Grants users complete independence, eliminating the need for technical expertise.
- Low-Code: Non-technical users may need assistance from developers to finalize automation projects due to coding requirements.
As business demands surge, the low-code/no-code paradigm emerges as a pivotal solution, enabling users to automate repetitive tasks and redirect focus to strategic, value-driven work.
## Comparing Low-Code and No-Code Platforms: Making an Informed Choice
When evaluating low-code versus no-code platforms, the decision hinges on various factors:
**1. Flexibility and Customization**
- Low-Code: Offers enhanced flexibility by allowing developers to customize applications with coding when necessary, striking a balance between visual development and traditional coding.
- No-Code: Limits customization options to visual interfaces and pre-built components, constraining developers.
**2. Speed of Development**
- No-Code: Geared towards non-technical users, enabling swift application development through visual interfaces and drag-and-drop functionality.
- Low-Code: Requires some coding knowledge but accelerates development compared to traditional coding through visual tools and pre-built components.
**3. Technical Expertise**
- No-Code: Tailored for non-technical users, facilitating application creation without coding skills.
- Low-Code: Assumes coding knowledge typically used by developers with programming experience.
**4. Maintenance and Scalability**
- Low-Code: Provides more significant control over underlying code, easing maintenance and scalability. Developers can optimize performance, debug issues, and make necessary changes.
- No-Code: While simpler for initial development, it may have limitations in scalability and handling complex application requirements.
## Bottom Line
In conclusion, the contemporary landscape places unprecedented strain on quality assurance teams, demanding swift, high-quality deliverables. Adopting no-code and low-code automation testing best practices is a compelling solution that alleviates organizational testing barriers.
Low-code testing democratically reshapes the quality assurance process by transforming every team member into a developer and a tester. It dismantles organizational silos, fostering collaboration among cross-functional teams and achieving a level of quality previously unattainable.
Identifying the strategic placement of low or no code within your organization can yield substantial benefits, empowering a democratized workforce and delivering solutions that resonate with satisfied customers.
HeadSpin, a comprehensive mobile application testing platform, stands at the forefront of this transformation. Tailored to optimize DevOps test automation, it offers capabilities ranging from automated functional and visual testing to real device automation.
Seamlessly integrating with popular testing frameworks, HeadSpin empowers teams to guarantee the quality and dependability of their mobile applications. With a keen focus on continuous integration and end-to-end testing, HeadSpin is pivotal in fostering agile, efficient, and user-centric development practices.
Original Source: https://www.williamwhitepapers.com/low-coade-vs-no-code/
| berthaw82414312 |
1,916,848 | NVOCC Shipping Software | NVOCC shipping software is an advanced system designed to streamline the process of shipping cargo by... | 0 | 2024-07-09T06:28:43 | https://dev.to/sathya_raghavan_a565824dd/nvocc-shipping-software-5bfl | **[NVOCC shipping software](https://www.infodynamic.net/industries-shipping-logistics.php)** is an advanced system designed to streamline the process of shipping cargo by sea. Non-Vessel Operating Common Carriers (NVOCCs) primarily use this software as intermediaries between the shipper and the carrier. It enables NVOCCs to efficiently manage and track their shipments by automating key processes such as bookings, billings, and documentation. This **[shipping management software](https://www.infodynamic.net/industries-shipping-logistics.php)** is highly scalable, allowing it to cater to small, medium, and large NVOCCs' needs. Its user-friendly interface and robust features make it an indispensable tool for any NVOCC looking to stay competitive in the shipping industry.
| sathya_raghavan_a565824dd | |
1,916,849 | DB Wealth Institute Advances AI with State-of-the-Art Facilities | DB Wealth Institute Advances AI with State-of-the-Art Facilities Since 2018, the DB Wealth Institute,... | 0 | 2024-07-09T06:29:06 | https://dev.to/tasmaniantribune/db-wealth-institute-advances-ai-with-state-of-the-art-facilities-5bc1 | dbwealthinstitute | DB Wealth Institute Advances AI with State-of-the-Art Facilities
Since 2018, the DB Wealth Institute, under the visionary leadership of Cillian Miller, has made significant strides from quantitative to artificial intelligence trading. Recognizing the potential of AI to process complex data patterns and make precise market predictions, the institute has embraced AI's ability to adapt rapidly to market changes and execute real-time trading decisions.
1. Launching Academic Programs
Cillian Miller and the DB Wealth Institute have introduced a series of academic courses covering machine learning, deep learning, and natural language processing. These courses are designed to help students deeply understand the core concepts and technologies of AI and provide opportunities to apply these technologies practically.
2. Fostering Research Initiatives
Cillian Miller has actively promoted collaboration with the industry to launch AI research projects. Through partnerships with corporations, the institute aims to deepen students' understanding of AI and offer practical solutions to real-world problems. These projects keep the school closely connected with industry developments and emerging technological trends.
3. Establishing an Innovation Center
The DB Wealth Institute has set up a dedicated innovation center to foster creativity and entrepreneurship in the AI field. The institute encourages engineers, practitioners, staff, and students to participate actively in the center's activities, which support innovation and entrepreneurship through incubators, mentorship, and innovation funds. The center also organizes various innovation competitions, motivating students to propose novel AI solutions.
4. Multifaceted Talent Development
4.1 Professional Courses: The institute offers a comprehensive range of AI-related courses that cover fundamental knowledge, algorithms, programming skills, and practical projects. Taught by experienced educators and industry experts, these courses ensure students receive the most current knowledge and skills.
4.2 Practical Projects: In collaboration with companies in the AI sector, the institute provides practical projects for students, allowing them to apply their knowledge to real-world problems and interact with industry professionals, enhancing their practical abilities and problem-solving skills.
4.3 Industry Mentorship: The institute invites AI professionals to mentor students, guiding their learning and development, providing practical experience, industry insights, and professional advice to help them better understand and adapt to industry advancements.
4.4 Laboratories and Research Centers: DB Wealth Institute has established internal AI labs and research centers, providing an innovative environment for students. These facilities are equipped with professional equipment and resources, encouraging students to conduct research, develop new technologies, and tackle real-world problems.
4.5 Academic Forums and Seminars: The institute regularly organizes academic forums and seminars, inviting scholars and industry experts to share the latest research findings and discuss industry trends. | tasmaniantribune |
1,916,851 | Print Murah 24 jam | Print Murah 24 Jam: Solusi Cetak Praktis di Zona Printing Di era digital ini, kebutuhan akan layanan... | 0 | 2024-07-09T06:30:20 | https://dev.to/zona_printing_d61deeb0bc8/print-murah-24-jam-39f0 | **Print Murah 24 Jam: Solusi Cetak Praktis di Zona Printing**
Di era digital ini, kebutuhan akan layanan cetak yang cepat dan efisien semakin meningkat. Zona Printing hadir sebagai solusi tepat bagi Anda yang membutuhkan layanan cetak murah dengan kualitas terjamin, dan yang lebih penting lagi, dengan ketersediaan selama 24 jam penuh. Berlokasi strategis di pusat kota, Zona Printing tidak hanya menawarkan kualitas cetakan yang prima tetapi juga kemudahan aksesibilitas tanpa batas waktu.
Mengapa Memilih Zona Printing?
Zona Printing telah dikenal sebagai pilihan utama bagi banyak individu dan perusahaan dalam memenuhi kebutuhan cetak mereka. Berikut adalah beberapa alasan mengapa Anda harus memilih Zona Printing:
1. Kualitas Terjamin : Kami menggunakan peralatan cetak terkini dan bahan berkualitas tinggi untuk memastikan hasil cetak yang memuaskan. Dari cetakan warna hingga cetak hitam putih, setiap detail ditangani dengan teliti untuk memenuhi standar tertinggi.
2. Harga Bersaing : Kami mengerti pentingnya anggaran bagi setiap proyek. Oleh karena itu, Zona Printing menawarkan harga yang kompetitif tanpa mengorbankan kualitas. Dengan opsi cetak berbagai ukuran dan jenis, kami dapat memenuhi kebutuhan cetak Anda dengan harga yang terjangkau.
3. Pelayanan 24 Jam : Dengan kami, Anda tidak perlu khawatir tentang batasan waktu. Zona Printing siap melayani Anda kapan pun Anda membutuhkan layanan cetak. Ini sangat berguna bagi mereka yang memiliki tenggat waktu ketat atau membutuhkan cetakan mendesak di tengah malam.
4. Fleksibilitas Desain : Tim profesional kami siap membantu Anda dalam proses desain jika diperlukan. Baik itu untuk brosur, pamflet, poster, atau kebutuhan cetak khusus lainnya, kami dapat mengakomodasi permintaan Anda dengan solusi cetak yang tepat.
Layanan Cetakan Lainnya di Zona Printing
Selain layanan cetak murah 24 jam, Zona Printing juga menawarkan berbagai jenis layanan cetak lainnya, seperti:
- Cetak Brosur dan Pamflet : Ideal untuk promosi acara atau kampanye marketing.
- Cetak Poster: Berbagai ukuran untuk keperluan promosi atau dekorasi.
- Cetak Buku dan Majalah : Untuk kebutuhan penerbitan atau dokumen internal perusahaan.
- Cetak Kartu Nama : Menampilkan identitas profesional Anda dengan desain yang menarik.
- Cetak Merchandise : Seperti kaos, mug, atau merchandise lainnya dengan logo atau desain khusus.
Cara Menghubungi Kami
Untuk informasi lebih lanjut atau memesan layanan cetak, Anda dapat menghubungi Zona Printing melalui:
- Nama Toko : Zona Printing ( https://www.zonaprinting24jam.com/ )
- Nomor Telepon : 081378110466
- Alamat : Jalan Balai Pustaka Baru No.16B Rawamangun Jakarta Timur
Tim kami siap membantu menjawab pertanyaan Anda, memberikan konsultasi, atau mengatur pesanan cetak sesuai kebutuhan Anda.
Kesimpulan
Zona Printing tidak hanya menawarkan layanan cetak murah dan cepat 24 jam, tetapi juga menjamin kualitas dan pelayanan yang memuaskan. Dengan pengalaman bertahun-tahun dalam industri cetak, kami berkomitmen untuk memberikan solusi cetak yang efektif dan efisien untuk setiap pelanggan kami. Jadi, jangan ragu untuk menghubungi kami untuk memenuhi kebutuhan cetak Anda, di mana pun dan kapan pun Anda membutuhkannya. | zona_printing_d61deeb0bc8 | |
1,916,853 | section 144 | legal firm | law firm | Get reliable legal advice online. Chat with experienced lawyers for personalized guidance on your... | 0 | 2024-07-09T06:31:19 | https://dev.to/ankur_kumar_1ee04b081cdf3/section-144-legal-firm-law-firm-2n1l | Get reliable legal advice online. Chat with experienced lawyers for personalized guidance on your legal matters. Secure, confidential consultations cover a wide range of practice areas. Affordable solutions to protect your rights.
Contact us: - 8800788535
Email us: - care@leadindia.law
Website: -
https://www.leadindia.law/blog/what-is-section-144/
 | ankur_kumar_1ee04b081cdf3 | |
1,916,855 | digital marketing | Digital marketing encompasses all marketing efforts that utilize electronic devices or the internet.... | 0 | 2024-07-09T06:32:55 | https://dev.to/yashwardhan_singh_4c9390d/digital-marketing-1m28 | Digital marketing encompasses all marketing efforts that utilize electronic devices or the internet. It includes a wide range of tactics and strategies to reach and engage potential customers online, such as:
1. **Search Engine Optimization (SEO)**: Optimizing websites and content to rank higher in search engine results pages (SERPs).
2. **Search Engine Marketing (SEM)**: Using paid advertisements to appear in search engine results, often through platforms like Google Ads.
3. **Social Media Marketing**: Promoting products or services on social media platforms to increase brand awareness, drive traffic, and generate leads.
4. **Content Marketing**: Creating and distributing valuable, relevant, and consistent content to attract and retain a targeted audience.
5. **Email Marketing**: Sending personalized messages to a targeted audience to promote products, services, or events.
6. **Influencer Marketing**: Partnering with influencers who have a dedicated following to promote products or services.
7. **Affiliate Marketing**: Partnering with other businesses or individuals to promote products and earn commissions for referred sales.
8. **Online PR**: Using online channels to manage a company's reputation and influence public perception.
9. **Analytics and Data Analysis**: Utilizing tools and platforms to analyze digital marketing campaigns' performance and optimize strategies.
Digital marketing allows businesses to reach a global audience, target specific demographics more precisely, measure the effectiveness of campaigns in real-time, and often achieve a higher return on investment (ROI) compared to traditional marketing methods.
https://shivgangadigital.com/ | yashwardhan_singh_4c9390d | |
1,916,856 | Mengirim Pesan WhatsApp dengan JavaScript | Pada kesempatan kali ini saya akan membagikan cara mengirimkan pesan WhatsApp secara otomatis... | 0 | 2024-07-09T06:35:51 | https://dev.to/mahib22/mengirim-pesan-whatsapp-dengan-javascript-269j | javascript, whatsapp, puppeteer, automation | Pada kesempatan kali ini saya akan membagikan cara mengirimkan pesan WhatsApp secara otomatis menggunakan library [Puppeteer](https://pptr.dev/).
Apa itu Puppeteer? Puppeteer adalah sebuah library Node.js yang menyediakan API tingkat tinggi untuk mengontrol browser Chrome atau Chromium secara programatik. Puppeteer digunakan untuk mengotomatisasi tugas-tugas di browser, seperti Web Scraping, Pengujian Web, Mengambil Screenshot, Menghasilkan PDF, dan Interaksi dengan Halaman. Puppeteer sangat berguna untuk pengembang web dan penguji karena memungkinkan otomatisasi tugas yang biasanya memerlukan interaksi manual dengan browser.
Silahkan buat folder untuk menyimpan project latihan kali ini, kemudian buat file **index.js** kemudian jalankan `npm init` setelah itu jalankan `npm i puppeteer`.
Tulis kode dibawah ini pada **index.js**.
```
import puppeteer from 'puppeteer';
const scrape = async (url) => {
const browser = await puppeteer.launch({ headless: false });
const page = await browser.newPage();
await page.goto(url);
};
scrape("https://web.whatsapp.com");
```
Buka [WhatsApp Web](https://web.whatsapp.com) kemudian lakukan _inspect element_ dan pilih nama kontak yang ingin dikirimi pesan. Sebagai contoh saya akan mengirim pesan dengan nama kontak yaitu Asep.
```
await page.waitForSelector("span[title='Asep']");
const target = await page.$("span[title='Asep']");
await target.click();
```
Kemudian _copy selector_ pada kolom tempat menulis pesan pada _chat_.
```
const inp = await page.$(
"#main > footer > div._3SvgF._1mHgA.copyable-area > div.DuUXI > div > div._1awRl.copyable-text.selectable-text"
);
```
Kemudian tulis pesan yang ingin dikirim, Anda juga bisa melakukan pengulangan pada pesan yang dikirim.
```
for (let i = 0; i < 100; i++) { // lakukan pengulangan sesuai keinginan
await inp.type("halo!"); // isi pesan
await page.keyboard.press("Enter");
}
await browser.close();
```
Sehingga keseluruhan kode menjadi seperti ini.
```
import puppeteer from 'puppeteer';
const scrape = async (url) => {
const browser = await puppeteer.launch({ headless: false });
const page = await browser.newPage();
await page.goto(url);
await page.waitForSelector("span[title='Asep']");
const target = await page.$("span[title='Asep']");
await target.click();
const inp = await page.$(
"#main > footer > div._3SvgF._1mHgA.copyable-area > div.DuUXI > div > div._1awRl.copyable-text.selectable-text"
);
for (let i = 0; i < 100; i++) {
await inp.type("halo!");
await page.keyboard.press("Enter");
}
await browser.close();
};
scrape("https://web.whatsapp.com");
```
Jalankan kode dengan perintah `node index.js`. | mahib22 |
1,916,857 | Python_In_Tamil-002 - Statements | Dear All, Good Morning. As explained in Python_In_Tamil-001, type the below codes in the Editor... | 0 | 2024-07-09T06:36:38 | https://dev.to/govi1964/pythonintamil-002-statements-92e | learning, python, statements, idle | Dear All,
Good Morning.
As explained in Python_In_Tamil-001, type the below codes in the Editor Window of IDLE, save them, run them. You will get the output/results in your Shell Window.
For Python_In_Tamil-002, the topic is Python Statements.
Python statements are instructions or commands that perform actions, control program flow, or manipulate data.
Assignment Statements:
age = 35
print(age)
name = "Govi"
print(name)
Assignment statements don’t produce results.
# symbol is used to start writing a comment.
a = 5; b = -8
print(a + b)
Print Statement:
print("Hello, World!")
len = 5; wid = 8
print(“Area of triangle: “, (len * wid) / 2
Multi-line statements:
line continuation character (\).
addition = 10 + 20 + \
30 + 40 + \
50 + 60 + 70
print(addition)
Implicit continuation:
addition = (10 + 20 +
30 + 40 +
50 + 60 + 70)
print(addition)
list of strings:
names = ['Arun',
'Balaji',
'Ganesh']
print(names)
dictionary name as a key and mark as a value:
students = {'Kadhir': 10,
'Kaavya': 11,
'Meena': 10}
print(students)
Conditional Statements:
x = 6
if x > 10:
print("x is greater than 10")
elif x == 10:
print("x is equal to 10")
else:
print("x is less than 10")
Loop Statements:
for i in range(6):
print(i)
x = 5
while x > 0:
print(x)
x -= 1
Function Definition Statements:
def greet(name):
print("Hello, " + name)
greet(‘Govi’)
Return Statement:
def add(a, b):
return a + b
result = add(4, 5)
print(result)
Import Statements:
import math
Exception Handling Statements:
try:
result = 10 / 0
except ZeroDivisionError:
print("Division by zero is not allowed.")
Break and Continue Statements:
for i in range(10):
if i == 5:
break # Exit the loop when i is 5
print(i)
pass Statement:
def placeholder_function():
pass
del statement:
my_list = [1, 2, 3]
del my_list[1]
If you have any comments/suggestions, please write your reviews.
Let us meet tomorrow with Python_In_Tamil-003.
Thanks and Regards
Govi
https://www.youtube.com/@Python_In_Tamil
| govi1964 |
1,916,859 | The Indispensable Role Of Integration Testing In Software Development | In the software development world, testing is a very important step. Integration testing is one of... | 0 | 2024-07-09T06:37:47 | https://www.articlecube.com/indispensable-role-integration-testing-software-development | integration, testing | 
In the software development world, testing is a very important step. Integration testing is one of the essential types of tests in this process. It makes sure that different parts of a computer program work well with each other, checking the connections between them. But why is it important to pay attention to integration testing? Let us explore the main reasons automated integrated testing is important for project's success.
**Detecting integration issues early**
Integration testing helps find problems that happen when combining different parts of the software. By finding these issues early in the process of making the software, you can reduce risks and avoid expensive repairs later.
**Validating interactions**
Modern computer programs usually have many parts that work together, like databases, APIs and services from outside. Integration testing checks if these parts talk to each other well and work properly when combined, making sure the program acts right in real situations.
**Ensuring system stability**
A detailed plan for testing how parts of the software work together makes sure that software is stable and trustworthy. When you test these connection points well, it reduces the chance that something will go wrong or the system will stop working when it's being used in real-world situations.
**Improving software quality**
Quality assurance holds great importance in creating software. Carrying out integration testing helps to enhance the total quality of the product by finding problems that might not be visible during unit testing or different stages of testing. This leads to a more robust and dependable software application.
**Enhancing user experience**
Integration testing is important for improving how people feel when using the software because it checks that all parts of the program work well together. This makes users have a smooth and easy time using the product, which makes them more happy and likely to keep using it.
**Facilitating agile development**
In Agile development methods, where teams build software in small parts, integration testing checks the software changes regularly. It helps teams add new functions or updates smoothly and keeps the whole system working properly.
**Reducing maintenance costs**
Dealing with integration problems while still developing the software is cheaper than fixing them after the software has already been released. When you do integration tests early, it helps to lower maintenance costs later on.
**Building confidence in releases**
Integration testing makes development team, the people interested in the project and the final users believe more in how stable and dependable each software release is. Having this belief is very important for building trust and being seen as credible with what you are making.
**Complying with regulatory requirements**
In some work areas like hospitals, banks and aircraft businesses, it is necessary to follow official rules strictly. Testing together the parts of a program can check if this software follows these important standards and laws, which reduces the chance of legal problems or being responsible for breaking them.
**Driving continuous improvement**
Integration testing is not just done once, but it is a continuous process that changes as the software development goes on. When you look at integration test outcomes and keep improving testing methods, you can make ongoing advancements in how you develop software.
**Conclusion**
Integration testing acts as a key piece to make sure complicated systems work without problems, find problems soon, and make the quality and trustworthiness of software products stronger. Yet, for truly making use of the advantages that come with integration testing, having the proper tools is necessary. Tools that support automated integration testing can streamline the process, making it more efficient and effective. These tools can also provide detailed reports and analytics, offering insights into how well different parts of the system are working together. Moreover, training the development team on best practices in integration testing is crucial to fully leverage its benefits. | rohitbhandari102 |
1,916,860 | Understanding Semantic HTML: A Guide for Developers | Introduction Semantic HTML is a crucial concept in web development that enhances the... | 0 | 2024-07-10T03:11:22 | https://dev.to/mdhassanpatwary/understanding-semantic-html-a-guide-for-developers-484f | ## Introduction
Semantic HTML is a crucial concept in web development that enhances the readability, accessibility, and SEO of web pages. Unlike generic tags such as `<div>` and `<span>`, semantic HTML tags provide meaning to the content they enclose, making it easier for both humans and machines to understand the structure and purpose of the web page.
## What is Semantic HTML?
Semantic HTML refers to the use of HTML tags that convey the meaning and structure of the content within them. These tags not only describe the content but also its role within the document. For example:
* **`<header>`:** Represents introductory content, typically a group of introductory or navigational aids.
* **`<nav>`:** Defines a set of navigation links.
* **`<article>`:** Represents a self-contained composition in a document, page, or site.
* **`<section>`:** Defines a section in a document.
* **`<aside>`:** Represents content tangentially related to the content around it.
* **`<footer>`:** Contains information about its containing element.
## Benefits of Using Semantic HTML
**1. Improved Accessibility:** Screen readers and other assistive technologies can better interpret and navigate web pages with clear semantic structure, enhancing the experience for users with disabilities.
**2. Enhanced SEO:** Search engines use semantic HTML to better understand the content and context of a webpage, which can improve search rankings.
**3. Better Code Readability:** Semantic tags make the HTML code more readable and maintainable by providing clear and descriptive tags, making it easier for developers to understand the structure and purpose of the content.
**4. Consistent Styling:** Semantic elements provide a more logical structure, which can help in applying consistent styles across different sections of a website.
## Common Semantic HTML Tags and Their Usage
**1. `<header>`:**
```
<header>
<h1>Welcome to My Website</h1>
<nav>
<ul>
<li><a href="#home">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</nav>
</header>
```
**2. `<nav>`:**
```
<nav>
<ul>
<li><a href="#section1">Section 1</a></li>
<li><a href="#section2">Section 2</a></li>
<li><a href="#section3">Section 3</a></li>
</ul>
</nav>
```
**3. `<article>`:**
```
<article>
<h2>Understanding Semantic HTML</h2>
<p>Semantic HTML is important because...</p>
</article>
```
**4. `<section>`:**
```
<section>
<h2>About Us</h2>
<p>We are a company that values...</p>
</section>
```
**5. `<aside>`:**
```
<aside>
<h3>Related Articles</h3>
<ul>
<li><a href="#article1">Article 1</a></li>
<li><a href="#article2">Article 2</a></li>
</ul>
</aside>
```
**6. `<footer>`:**
```
<footer>
<p>© 2024 My Website. All rights reserved.</p>
</footer>
```
## Best Practices for Semantic HTML
* **Use the Right Tag for the Right Purpose:** Always choose the most appropriate semantic tag for the content you are marking up.
* **Keep Content Organized:** Structure your content logically using semantic tags to create a clear and understandable hierarchy.
* **Combine with ARIA Roles:** While semantic HTML provides many accessibility benefits, combining it with ARIA (Accessible Rich Internet Applications) roles can further enhance accessibility.
* **Validate Your HTML:** Use HTML validators to ensure that your semantic markup is correct and free of errors.
## Conclusion
Incorporating semantic HTML into your web development practices is essential for creating web pages that are accessible, SEO-friendly, and easy to maintain. By understanding and using semantic tags correctly, you can improve the overall quality and effectiveness of your web projects. | mdhassanpatwary | |
1,916,930 | Day 8 of 100 Days of Code | Mon, July 8, 2024 Today, I spent some time on a HTML+CSS project, including troubleshooting some... | 0 | 2024-07-09T07:37:46 | https://dev.to/jacobsternx/day-8-of-100-days-of-code-4a2p | 100daysofcode, webdev, javascript, beginners | Mon, July 8, 2024
Today, I spent some time on a HTML+CSS project, including troubleshooting some issues I initially thought were syntax-related, but were actually related to file path, in that the file path from index.html to images in resources/ folder is different from the file path to those images from where style.css lives in resources/css/. It was a good pick up to identify, but I'd like to have a chunk of that time back. I could've used fully qualified public image urls as a workaround.
Going forward, I'll weigh being more economical with my time--I already know file systems rather well. Following, I caught up with some of the Codecademy mini practical CSS lesson quizzes that I'd earlier passed by, which are a great way to solidify the lesson material.
I'm still on Deploying Websites lesson, and specifically on Github Pages, which is another blogging platform. So, tomorrow, I'll be sure to get into Improved Styling with CSS. After that lesson is the final Web Dev Foundations course lesson: Making a Website Responsive. Then, Web Dev Foundations course review, questions and coding assessments, before moving on to JavaScript in the second course, Building Interactive Websites.
| jacobsternx |
1,916,862 | Building a Serverless CRUD API with AWS: A Comprehensive Guide | Introduction In the era of cloud computing, serverless architectures have become a game-changer,... | 0 | 2024-07-09T06:39:14 | https://dev.to/kaviya_kathirvelu_0505/building-a-serverless-crud-api-with-aws-a-comprehensive-guide-ljm | devops, aws, cloudcomputing, serverless | **Introduction**
In the era of cloud computing, serverless architectures have become a game-changer, allowing developers to build and deploy applications without worrying about the underlying infrastructure. AWS offers a powerful suite of services that make it easy to create serverless applications. In this blog, we'll walk you through building a serverless CRUD (Create, Read, Update, Delete) API using AWS Lambda, API Gateway, IAM, and DynamoDB.
**Why Choose Serverless?**
Serverless computing offers several advantages:
- Scalability:
Automatically scales with the demand.
- Cost-Efficiency:
Pay only for what you use.
- Reduced Operational Overhead:
Focus on code rather than infrastructure.
- High Availability:
Built-in redundancy and fault tolerance.
**Components of Our Serverless CRUD API**
- API Gateway:
Acts as the entry point for your API.
- AWS Lambda:
Executes your business logic.
- IAM:
Manages access and permissions.
- DynamoDB:
A NoSQL database for storing your data.
- Postman software:
A software that is used to write code and send requests to the API Gateway
**Step-by-Step Guide**
1. Set Up DynamoDB
Create a DynamoDB table named product-inventory with productid as the partition key.
2. Create Lambda Functions
Create Lambda functions for each CRUD operation. Here's an example of a Lambda function for handling all CRUD operations:
3. Deploy Lambda Functions
Deploy your Lambda functions using the AWS Management Console or AWS CLI.
Here is a sample code:
```
const AWS = require('aws-sdk');
AWS.config.update( {
region: 'us-east-1'
});
const dynamodb = new AWS.DynamoDB.DocumentClient();
const dynamodbTableName = 'product-inventory';
const healthPath = '/health';
const productPath = '/product';
const productsPath = '/products';
exports.handler = async function(event) {
console.log('Request event: ', event);
let response;
switch(true) {
case event.httpMethod === 'GET' && event.path === healthPath:
response = buildResponse(200);
break;
case event.httpMethod === 'GET' && event.path === productPath:
response = await getProduct(event.queryStringParameters.productid);
break;
case event.httpMethod === 'GET' && event.path === productsPath:
response = await getProducts();
break;
case event.httpMethod === 'POST' && event.path === productPath:
response = await saveProduct(JSON.parse(event.body));
break;
case event.httpMethod === 'PATCH' && event.path === productPath:
const requestBody = JSON.parse(event.body);
response = await modifyProduct(requestBody.productid, requestBody.updateKey, requestBody.updateValue);
break;
case event.httpMethod === 'DELETE' && event.path === productPath:
response = await deleteProduct(JSON.parse(event.body).productid);
break;
default:
response = buildResponse(404, '404 Not Found');
}
return response;
}
async function getProduct(productid) {
const params = {
TableName: dynamodbTableName,
Key: {
'productid': productid
}
}
return await dynamodb.get(params).promise().then((response) => {
return buildResponse(200, response.Item);
}, (error) => {
console.error('Do your custom error handling here. I am just gonna log it: ', error);
});
}
async function getProducts() {
const params = {
TableName: dynamodbTableName
}
const allProducts = await scanDynamoRecords(params, []);
const body = {
products: allProducts
}
return buildResponse(200, body);
}
async function scanDynamoRecords(scanParams, itemArray) {
try {
const dynamoData = await dynamodb.scan(scanParams).promise();
itemArray = itemArray.concat(dynamoData.Items);
if (dynamoData.LastEvaluatedKey) {
scanParams.ExclusiveStartkey = dynamoData.LastEvaluatedKey;
return await scanDynamoRecords(scanParams, itemArray);
}
return itemArray;
} catch(error) {
console.error('Do your custom error handling here. I am just gonna log it: ', error);
}
}
async function saveProduct(requestBody) {
const params = {
TableName: dynamodbTableName,
Item: requestBody
}
return await dynamodb.put(params).promise().then(() => {
const body = {
Operation: 'SAVE',
Message: 'SUCCESS',
Item: requestBody
}
return buildResponse(200, body);
}, (error) => {
console.error('Do your custom error handling here. I am just gonna log it: ', error);
})
}
async function modifyProduct(productid, updateKey, updateValue) {
const params = {
TableName: dynamodbTableName,
Key: {
'productid': productid
},
UpdateExpression: `set ${updateKey} = :value`,
ExpressionAttributeValues: {
':value': updateValue
},
ReturnValues: 'UPDATED_NEW'
}
return await dynamodb.update(params).promise().then((response) => {
const body = {
Operation: 'UPDATE',
Message: 'SUCCESS',
UpdatedAttributes: response
}
return buildResponse(200, body);
}, (error) => {
console.error('Do your custom error handling here. I am just gonna log it: ', error);
})
}
async function deleteProduct(productid) {
const params = {
TableName: dynamodbTableName,
Key: {
'productid': productid
},
ReturnValues: 'ALL_OLD'
}
return await dynamodb.delete(params).promise().then((response) => {
const body = {
Operation: 'DELETE',
Message: 'SUCCESS',
Item: response
}
return buildResponse(200, body);
}, (error) => {
console.error('Do your custom error handling here. I am just gonna log it: ', error);
})
}
function buildResponse(statusCode, body) {
return {
statusCode: statusCode,
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(body)
}
}
```
4. Set Up API Gateway
Create an API:
-
Choose REST API.
-
Set up methods (GET, POST, PATCH, DELETE) for your resources (/health, /product, /products).
-
Integrate each method with the respective Lambda function.
-
Enable CORS and enable proxy for the resources
-
Configure CORS settings for each method.
-
Deploy the API:
-
Create a new deployment stage (e.g., dev, prod).
5. Configure IAM Roles
Ensure your Lambda functions have the necessary permissions to interact with DynamoDB. Create an IAM role with policies that allow dynamodb to perform actions on your table.
6. Testing the API
Use tools like Postman or CURL to test your API endpoints. Ensure each CRUD operation works as expected:
GET /health: Check API health.
GET /product?productid=10001: Retrieve a specific product.
GET /products: Retrieve all products.
POST /product: Create a new product.
PATCH /product: Update an existing product.
DELETE /product: Delete a product.
**Benefits of Using Serverless CRUD API**
-
Scalability: Automatically scales with demand.
-
Cost-Efficiency: Pay only for what you use.
-
Reduced Operational Overhead: No need to manage servers.
-
High Availability: Built-in redundancy and fault tolerance.
-
Security: Fine-grained access control with IAM.
**Conclusion**
Building a serverless CRUD API using AWS Lambda, API Gateway, IAM, and DynamoDB is an excellent choice for scalable, cost-effective, and secure backend solutions. With the steps outlined in this blog, you can quickly set up your own serverless API and start leveraging the power of AWS for your applications.
Happy coding!
| kaviya_kathirvelu_0505 |
1,916,863 | Digital Marketing | In today's digital age, cutting through the noise and reaching your target audience is more important... | 0 | 2024-07-09T06:40:05 | https://dev.to/demo_harman_6905e3236e5b0/digital-marketing-2d92 | In today's digital age, cutting through the noise and reaching your target audience is more important than ever. At Nurturing Cubs (https://nurturingcubs.com/), we're a team of passionate digital marketing experts who help businesses achieve real results. We craft data-driven strategies that get noticed and drive conversions.
| demo_harman_6905e3236e5b0 | |
1,916,864 | How to Use App Context | PubNub App Context is an easy-to-use, serverless storage for user, channel, and membership information | 0 | 2024-07-09T06:42:10 | https://dev.to/pubnub/how-to-use-app-context-3faj | PubNub [App Context](https://www.pubnub.com/products/app-context/?) simplifies the development of complex real-time features by providing a serverless storage mechanism for User, Channel, and Membership information. App Context triggers events whenever the data changes, enabling your apps to update in real-time and the stored data can be used in [Illuminate](https://www.pubnub.com/products/illuminate/?), [Functions](https://www.pubnub.com/products/functions/?), and other PubNub services to make smarter decisions. You can also manage this data through an intuitive, no-code interface with [BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?).
What is App Context?
--------------------
[App Context](https://www.pubnub.com/docs/general/metadata/channel-metadata?) (formerly known as Objects) allows you to:
- Provide meaning to the Users and Channels in your application and the relationships between them.
- Store metadata for all of your entities on the server, making it simple to provide a global source of truth for your clients. Note that a User does not have to represent a human being, and it is common to store device status within the user object instead.
- Receive instant real-time events whenever an object's values change.
While any application can use App Context, it is especially popular with developers creating [Chat Solutions](https://www.pubnub.com/solutions/chat/?).
App Context provides a set of suggested fields for your [Users](https://www.pubnub.com/docs/general/metadata/users-metadata?) and [Channels](https://www.pubnub.com/docs/general/metadata/channel-metadata?), as well as suggested fields for the [Memberships](https://www.pubnub.com/docs/general/metadata/membership-metadata?) between them. Most of these fields are optional, so you can pick and choose which fields you populate, as well as provide your own custom fields.
App Context Use Cases
---------------------
As mentioned, App Context is especially popular with developers creating Chat Solutions, but it can be used in a variety of use cases:
- **Chat:** Store user information (name, profile photo, 'on vacation' status, job title), channel information (icon, description, audience), user roles & keep track of the last message read per channel, per user.
- **Sports, Media & Entertainment:** Live voting and polling, live trivia, real-time bidding, CTA (call to action) overlays for merchandise or promotions.
- **Gaming:** Real-time player stats including player level, games won, badges; leaderboard tracking and management
- **More:** User away/active status, user trust score for fraud detection, user location tracking, IoT device statuses such as battery level or last sensor reading
How to Enable App Context
-------------------------
App Context can be enabled as follows:
1. Log into the [Admin Portal](https://admin.pubnub.com/?)
2. Click on the ‘Apps’ tab on the left-hand side of the portal
3. Click on an application. You will be brought to the keysets page for this application.
4. If you have not already done so, create a new keyset by clicking the “Create New Keyset” button. You will be brought to the configuration page for this keyset
5. Enable App Context by clicking the slider
6. The **Bucket Region** setting is the region where your data is stored. Please note that the region cannot be modified after saving changes to the keyset.
7. If the **User Metadata Events** and **Channel Metadata Events** settings are enabled, the user and channel events are triggered when data is set or removed in the database, as discussed later.
8. When the **Membership Events** setting is enabled, membership events are triggered when memberships are added, updated, or removed, as discussed later.
9. The remaining options are out of scope for this article, but please refer to the [App Context documentation](https://www.pubnub.com/docs/general/metadata/basics#configuration?) for more information
10. Click on **Save Changes** to save these updated changes.
User App Context
----------------
When a new user is enrolled into your application, perhaps through some external identity provider, you will have some way of uniquely identifying that user to PubNub; this is the [User ID](https://www.pubnub.com/docs/general/setup/users-and-devices?) that your user's client will use to initialize the PubNub SDK. The PubNub User ID might not be the same as the ID you use elsewhere in your solution to identify that same user, so we recommend keeping track of that in the 'External ID' field.
User Name, Email, and Profile URL do not require explanation, but the benefit of keeping these within App Context means that if a user changes any of these fields, the changes can be propagated at scale to all listening clients using App Context events, which are supported by all of our SDKs.
### How do I create a User representation in App Context?
There are two ways to create an App Context User.
1. Users can be created and managed using [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?), found within the PubNub admin portal. This does not require any code, and the process is explained with examples in the separate article: [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?)
2. APIs are exposed through each of our SDKs to create Users. If you are using our [Chat SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?), then this SDK handles app context for you behind the scenes; for example, the Chat SDK '[createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?)' method will call JavaScript's [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?) under the covers to create a User. Dedicated APIs are provided to modify your App Context data if you use any SDK other than the Chat SDK. I already mentioned the JavaScript [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?) API, but there are equivalents for all our APIs, including [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?), etc.
Channel App Context
-------------------
PubNub will create channels automatically whenever a user subscribes or publishes to them, but channels probably represent something meaningful to your application, for example, in a chat app, you might have a Group Chat that uses a channel to communicate or a live event might use a dedicated channel to manage polls.
Specifying App Context for a channel will store and update any desired metadata related to that channel, with those updates being optionally propagated to all interested clients. You might give a channel a name, e.g., 'Chat between User A and User B,' and perhaps the channel is related to some document storage, which could be tracked in a custom 'URI' field.
### How do I create a Channel representation in App Context?
Similar to Users, there are two ways to create an App Context Channel.
1. Channels can be created and managed using [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?). This does not require any code, and the process is explained with examples in the separate article: [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?)
2. APIs are exposed through each of our SDKs to create Channels. If you are using our [Chat SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?), then this handles app context for you behind the scenes; for example, the family of '[Create](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?) channel' methods will call JavaScript's [setChannelMetadata()](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?) under the covers. If you are using any SDK other than the Chat SDK, then dedicated APIs are provided to modify your App Context data, including [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?), etc.
Membership App Context
----------------------
Having defined App Context for both our users and channels, we can now define the relationship between the two by specifying whether users are ['members'](https://www.pubnub.com/docs/general/metadata/membership-metadata?) of a channel.
When a user joins a channel, they can receive updates about any other member of that same channel; they can be notified when users `join` or `leave` as well as whenever that user's App Context updates (e.g., they update their name).
**This is a deceptively powerful mechanism that provides a lot of value**, especially for chat app developers. If you did not use App Context, you would need to track every user yourself, which channels they were a member of, and notify everyone else in that same channel when that user joins or leaves. This challenge does not scale linearly, so the more users you have in your solution, the more difficult it becomes for you to try and manage all this information centrally.
By using App Context, your chat clients are provided with all the information they need to maintain their internal state, and you also have full control over that data with the PubNub [Access Manager](https://www.pubnub.com/docs/general/security/access-control?) to prevent unauthorized access.
### How do I create a Membership?
Similar to Users and Channels, there are two ways to create a Membership.
1. Memberships can be created and managed using [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?) without writing code. Please see the [Manage Membership](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?) section of our documentation for more details.
2. APIs are exposed through each of our SDKs to create Channels. If you are using our [Chat SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?), then this handles app context for you behind the scenes; for example, the family of '[Create](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?) channel' methods will call JavaScript's [setMemberships](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?) under the covers. If you are using any SDK other than the Chat SDK, then dedicated APIs are provided to modify your App Context data, including [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?), etc.
Receiving Real-time events when App Context Changes
---------------------------------------------------
When App Context data changes, your application will receive an event to notify you of what has changed in real-time; this allows you to create responsive apps without polling the server for updates.
### Receiving App Context Changes through the PubNub SDK (excluding Chat SDK)
All PubNub SDKs expose “Event Listeners,” and it is through these listeners that you can listen for `object events`, which are fired whenever App Context data changes.
Note that there is a slight nuance here that, at the time of writing, some of our SDKs support a new format for ‘event listeners,’ as explained in [this blog about updates to the event engine and event listeners](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?). Regardless of the event listener format, the principle remains the same: Your app should register to receive app context events through a listener provided by the SDK.
As detailed in the [JavaScript SDK documentation](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?), registering for App Context events will look as follows:
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
Documentation describing how to register for App Context events in other languages can be found in the following locations: [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?) (Note that Python calls the events ‘metadata’, whereas other SDKs refer to the events as ‘objects’), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?), etc.
For a worked example and interactive demo, please refer to the article on [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?)
### Receiving App Context Changes through the PubNub Chat SDK
The PubNub Chat SDK will expose App Context events through the family of [streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?) APIs.
Some examples, taken from the [Chat SDK Demo app](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web) for web:
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
For a worked example based on our simpler ‘getting stated’ sample for the Chat SDK, please refer to the article on [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?)
App Context and PubNub Illuminate
---------------------------------
[PubNub Illuminate](https://www.pubnub.com/products/illuminate/?) is a real-time decisioning and analytics product that is customizable to an organization’s unique use case. The product is designed with the product managers and analysts in mind, allowing them to do the following:
- Define custom real-time aggregated metrics.
- Set up and deploy decision rules with conditions and actions.
- Immediately visualize the metrics you’re tracking, the actions executed, and their outcome.
You can do all this in real time without pulling your engineering team away from their ongoing projects.
A full explanation of what PubNub Illuminte is, and how it can provide you with immediate actionable insights into your data, is outside the scope of this article, but please refer to our [documentation](https://www.pubnub.com/docs/illuminate/basics?) and [product overview](https://www.pubnub.com/blog/real-time-decisioning-with-illuminate/?) for more information.
In summary: You define **metrics** related to your application, i.e. things that you want to measure. For example, in an asset-tracking scenario, these might be Hours since the order was taken. When some [**condition**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?) is met related to that metric, e.g., the ‘Hours since the order’ might exceed a certain value, then you can take some **action**.
Which [action](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?) you take is flexible, but three of the possible actions relate to App Context:
### Update User with PubNub Illuminate
Allows you to set any predefined or custom user metadata. The screenshot below shows the User with ID 123 having their status set to the static value ‘New Status’ but it is also possible to set a dynamic value based on the **condition** that triggered the **action**.
### Update Channel with PubNub Illuminate
Allows you to set any predefined or custom channel metadata. The screenshot below shows the Channel with ID 123 having their name set to the static value ‘New Name’, but it is also possible to set a dynamic value based on the **condition** that triggered the **action**.
### Update Memberships with PubNub Illuminate
Allows you to set any predefined or custom membership metadata. The screenshot below shows User ID 123’s membership of Channel 123 having its status set to the static value ‘New Status.’ It is also possible to set a dynamic value based on the **condition** that triggered the **action**.
App Context and PubNub Functions
--------------------------------
PubNub provides Functions to capture events that are happening on the PubNub Platform. Functions let you write code or leverage existing integrations to transform, reroute, augment, filter, and even aggregate data. Please see the [Functions documentation](https://www.pubnub.com/docs/serverless/functions/overview?) for a more thorough overview of PubNub Functions but this article will consider how PubNub Functions relate to App Context.
### Updating App Context from within PubNub Functions
The environment in which Functions run has access to the [PubNub Module](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?); this module has full access to the App Context on your keyset, and some examples taken from the documentation are given below. :
Example for [Get User App Context Metadata](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?)
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
Example for [Set Channel App Context Metadata](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?)
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
For a comprehensive set of code examples, please refer to the documentation for the [PubNub Module](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?).
### Triggering a PubNub Function when App Context changes
There are numerous event types that can trigger a function, as detailed in the [Event Types documentation](https://www.pubnub.com/docs/serverless/functions/overview#event-types?). These include the ability to detect when messages and signals are sent, trigger functions after presence events occur, and execute Functions at a specified interval or on demand. At the time of writing, it is **not** possible to execute Functions after App Context updates, but if you find your application needs this, please contact our [support team](https://support.pubnub.com/hc/en-us?), who will be happy to walk through your use cases.
Next Steps
----------
To see App Context in action, you can check out our [Chat Demo](https://www.pubnub.com/demos/chat/?) that uses App Context alongside our Chat SDK to show what a chat app might look like with serverless storage. The Chat Demo allows you to set User and Channel metadata and see those changes propagate to other listeners and members in realtime.
Also, check out our related 3 part series on BizOps workspace which depends on App Context and covers how to: [Manage Users and Channels](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?), [Monitor and Moderate Conversations](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?), and [Securely Moderate Chat](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?).
Finally, feel free to reach out to the DevRel team at [devrel@pubnub.com](mailto:devrel@pubnub.com) or contact our [Support](https://support.pubnub.com/hc/en-us?) team for help with any aspect of your PubNub development.
How can PubNub help you?
========================
This article was originally published on [PubNub.com](https://www.pubnub.com/how-to/use-app-context/?)
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-----------------
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-----------
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1,916,865 | Jak korzystać z kontekstu aplikacji | PubNub App Context to łatwy w użyciu, bezserwerowy magazyn informacji o użytkownikach, kanałach i członkostwie. | 0 | 2024-07-09T06:42:11 | https://dev.to/pubnub-pl/jak-korzystac-z-kontekstu-aplikacji-p89 | PubNub [App Cont](https://www.pubnub.com/products/app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) ext upraszcza tworzenie złożonych funkcji czasu rzeczywistego, zapewniając bezserwerowy mechanizm przechowywania informacji o użytkownikach, kanałach i członkostwie. App Context wyzwala zdarzenia przy każdej zmianie danych, umożliwiając aktualizację aplikacji w czasie rzeczywistym, a przechowywane dane mogą być wykorzystywane w [Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Functions](https://www.pubnub.com/products/functions/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) i innych usługach PubNub do podejmowania mądrzejszych decyzji. Możesz także zarządzać tymi danymi za pomocą intuicyjnego interfejsu [BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
Co to jest App Context?
-----------------------
App[Context](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) (wcześniej znany jako Objects) pozwala na:
- Nadanie znaczenia użytkownikom i kanałom w aplikacji oraz relacjom między nimi.
- Przechowywanie metadanych dla wszystkich podmiotów na serwerze, co ułatwia zapewnienie globalnego źródła prawdy dla klientów. Należy pamiętać, że użytkownik nie musi reprezentować człowieka, a zamiast tego często przechowuje się stan urządzenia w obiekcie użytkownika.
- Otrzymywanie natychmiastowych zdarzeń w czasie rzeczywistym za każdym razem, gdy zmieniają się wartości obiektu.
Chociaż każda aplikacja może korzystać z App Context, jest on szczególnie popularny wśród programistów tworzących [rozwiązania Chat](https://www.pubnub.com/solutions/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
App Context zapewnia zestaw sugerowanych pól dla [użytkowników](https://www.pubnub.com/docs/general/metadata/users-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) i [kanałów](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), a także sugerowane pola dla [członkostwa](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) między nimi. Większość z tych pól jest opcjonalna, więc możesz wybrać, które pola wypełniasz, a także podać własne pola niestandardowe.
Przypadki użycia App Context
----------------------------
Jak wspomniano, App Context jest szczególnie popularny wśród programistów tworzących rozwiązania Chat, ale może być używany w różnych przypadkach użycia:
- **Czat:** Przechowywanie informacji o użytkowniku (imię i nazwisko, zdjęcie profilowe, status "na wakacjach", stanowisko), informacje o kanale (ikona, opis, odbiorcy), role użytkowników i śledzenie ostatniej przeczytanej wiadomości na kanale, na użytkownika.
- **Sport, media i rozrywka:** Głosowanie i ankiety na żywo, ciekawostki na żywo, licytacja w czasie rzeczywistym, nakładki CTA (wezwanie do działania) dla towarów lub promocji.
- **Gry:** Statystyki gracza w czasie rzeczywistym, w tym poziom gracza, wygrane gry, odznaki; śledzenie i zarządzanie tabelą liderów
- **Więcej:** Status nieobecności/aktywności użytkownika, wynik zaufania użytkownika do wykrywania oszustw, śledzenie lokalizacji użytkownika, statusy urządzeń IoT, takie jak poziom naładowania baterii lub ostatni odczyt czujnika.
Jak włączyć kontekst aplikacji
------------------------------
Kontekst aplikacji można włączyć w następujący sposób:
1. Zaloguj się do [portalu administratora](https://admin.pubnub.com/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
2. Kliknij zakładkę "Aplikacje" po lewej stronie portalu.
3. Kliknij aplikację. Zostaniesz przeniesiony na stronę zestawów kluczy dla tej aplikacji.
4. Jeśli jeszcze tego nie zrobiłeś, utwórz nowy zestaw kluczy, klikając przycisk "Utwórz nowy zestaw kluczy". Nastąpi przejście do strony konfiguracji tego zestawu kluczy
5. Włącz kontekst aplikacji, klikając suwak
6. Ustawienie **Bucket Region** to region, w którym przechowywane są dane. Należy pamiętać, że regionu nie można zmodyfikować po zapisaniu zmian w zestawie kluczy.
7. Jeśli ustawienia **User Metadata Events** i **Channel Metadata Events** są włączone, zdarzenia użytkownika i kanału są wyzwalane, gdy dane są ustawiane lub usuwane w bazie danych, jak omówiono później.
8. Jeśli włączone jest ustawienie **Membership** Events, zdarzenia członkostwa są wyzwalane, gdy członkostwa są dodawane, aktualizowane lub usuwane, co zostanie omówione później.
9. Pozostałe opcje są poza zakresem tego artykułu, ale więcej informacji można znaleźć w [dokumentacji App Context](https://www.pubnub.com/docs/general/metadata/basics#configuration?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
10. Kliknij **Zapisz zmiany**, aby zapisać zaktualizowane zmiany.
Kontekst aplikacji użytkownika
------------------------------
Gdy nowy użytkownik zostanie zarejestrowany w aplikacji, być może za pośrednictwem zewnętrznego dostawcy tożsamości, będziesz mieć jakiś sposób na jednoznaczną identyfikację tego użytkownika w PubNub; jest to [identyfikator użytkownika](https://www.pubnub.com/docs/general/setup/users-and-devices?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), którego klient użytkownika użyje do zainicjowania PubNub SDK. Identyfikator użytkownika PubNub może nie być taki sam jak identyfikator używany w innym miejscu rozwiązania do identyfikacji tego samego użytkownika, dlatego zalecamy śledzenie tego w polu "External ID".
Nazwa użytkownika, adres e-mail i adres URL profilu nie wymagają wyjaśnienia, ale korzyść z przechowywania ich w App Context oznacza, że jeśli użytkownik zmieni którekolwiek z tych pól, zmiany mogą być propagowane na dużą skalę do wszystkich klientów nasłuchujących za pomocą zdarzeń App Context, które są obsługiwane przez wszystkie nasze zestawy SDK.
### Jak utworzyć reprezentację użytkownika w App Context?
Istnieją dwa sposoby tworzenia użytkownika App Context.
1. Użytkownicy mogą być tworzeni i zarządzani za pomocą [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), znajdującego się w portalu administracyjnym PubNub. Nie wymaga to żadnego kodu, a proces został wyjaśniony na przykładach w osobnym artykule: [Jak zarządzać użytkownikami i kanałami za pomocą BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
2. Interfejsy API są dostępne za pośrednictwem każdego z naszych zestawów SDK do tworzenia użytkowników. Jeśli korzystasz z naszego [zestawu Chat SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), ten zestaw SDK obsługuje kontekst aplikacji za kulisami; na przykład metoda Chat SDK["createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)" wywoła [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) JavaScript pod przykrywką, aby utworzyć użytkownika. Dedykowane interfejsy API służą do modyfikowania danych App Context w przypadku korzystania z dowolnego zestawu SDK innego niż Chat SDK. Wspomniałem już o JavaScript [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) API, ale istnieją odpowiedniki dla wszystkich naszych API, w tym [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) itp.
Kontekst aplikacji kanału
-------------------------
PubNub tworzy kanały automatycznie za każdym razem, gdy użytkownik je subskrybuje lub publikuje, ale kanały prawdopodobnie reprezentują coś znaczącego dla aplikacji, na przykład w aplikacji czatu możesz mieć czat grupowy, który używa kanału do komunikacji lub wydarzenie na żywo może używać dedykowanego kanału do zarządzania ankietami.
Określenie App Context dla kanału spowoduje przechowywanie i aktualizowanie wszelkich pożądanych metadanych związanych z tym kanałem, a aktualizacje te będą opcjonalnie propagowane do wszystkich zainteresowanych klientów. Możesz nadać kanałowi nazwę, np. "Czat między użytkownikiem A i użytkownikiem B", a być może kanał jest związany z przechowywaniem dokumentów, które można śledzić w niestandardowym polu "URI".
### Jak utworzyć reprezentację kanału w App Context?
Podobnie jak w przypadku użytkowników, istnieją dwa sposoby tworzenia kanału App Context.
1. Kanały można tworzyć i zarządzać nimi za pomocą [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl). Nie wymaga to żadnego kodu, a proces ten został wyjaśniony na przykładach w osobnym artykule: [Jak zarządzać użytkownikami i kanałami za pomocą BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
2. Interfejsy API są dostępne za pośrednictwem każdego z naszych zestawów SDK do tworzenia kanałów. Jeśli korzystasz z naszego [zestawu Chat SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), obsługuje on kontekst aplikacji za kulisami; na przykład rodzina metod["Utwórz](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) kanał" wywoła [setChannelMetadata()](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) JavaScript pod przykrywką. Jeśli korzystasz z dowolnego zestawu SDK innego niż Chat SDK, dostępne są dedykowane interfejsy API do modyfikowania danych App Context, w tym [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) itp.
Kontekst aplikacji członkostwa
------------------------------
Po zdefiniowaniu App Context zarówno dla naszych użytkowników, jak i kanałów, możemy teraz zdefiniować relację między nimi, określając, czy użytkownicy są ["członkami"](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) kanału.
Gdy użytkownik dołącza do kanału, może otrzymywać aktualizacje dotyczące każdego innego członka tego samego kanału; może być powiadamiany, gdy użytkownicy `dołączają` lub `odchodzą`, a także za każdym razem, gdy kontekst aplikacji tego użytkownika jest aktualizowany (np. aktualizują swoją nazwę).
Jest to**zwodniczo potężny mechanizm, który zapewnia dużą wartość**, szczególnie dla twórców aplikacji do czatu. Gdybyś nie korzystał z App Context, musiałbyś samodzielnie śledzić każdego użytkownika, którego kanały są członkami, i powiadamiać wszystkich innych w tym samym kanale, gdy użytkownik dołącza lub opuszcza. To wyzwanie nie skaluje się liniowo, więc im więcej użytkowników masz w swoim rozwiązaniu, tym trudniej jest próbować zarządzać wszystkimi tymi informacjami centralnie.
Korzystając z App Context, klienci czatu otrzymują wszystkie informacje potrzebne do utrzymania ich wewnętrznego stanu, a Ty masz pełną kontrolę nad tymi danymi dzięki PubNub [Access Manager](https://www.pubnub.com/docs/general/security/access-control?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), aby zapobiec nieautoryzowanemu dostępowi.
### Jak utworzyć członkostwo?
Podobnie jak w przypadku użytkowników i kanałów, istnieją dwa sposoby tworzenia członkostwa.
1. Członkostwa można tworzyć i zarządzać nimi za pomocą [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) bez pisania kodu. Więcej informacji można znaleźć w sekcji [Zarządzanie członkostwem](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) w naszej dokumentacji.
2. Interfejsy API są dostępne za pośrednictwem każdego z naszych zestawów SDK do tworzenia kanałów. Jeśli korzystasz z naszego [Chat SD](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)K, to obsługuje on kontekst aplikacji za kulisami; na przykład rodzina metod["Create](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) channel" wywoła [setMemberships](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) JavaScript pod przykrywką. Jeśli korzystasz z dowolnego zestawu SDK innego niż Chat SDK, dostępne są dedykowane interfejsy API do modyfikowania danych App Context, w tym [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) itp.
Odbieranie zdarzeń w czasie rzeczywistym, gdy zmienia się App Context
---------------------------------------------------------------------
Gdy dane App Context ulegną zmianie, aplikacja otrzyma zdarzenie powiadamiające o tym, co się zmieniło w czasie rzeczywistym; pozwala to na tworzenie responsywnych aplikacji bez odpytywania serwera o aktualizacje.
### Odbieranie zmian kontekstu aplikacji za pośrednictwem PubNub SDK (z wyłączeniem Chat SDK)
Wszystkie zestawy SDK PubNub udostępniają "Event Listeners" i to właśnie za ich pośrednictwem można nasłuchiwać `zdarzeń obiektów`, które są uruchamiane za każdym razem, gdy zmieniają się dane App Context.
Należy zauważyć, że w chwili pisania tego tekstu niektóre z naszych zestawów SDK obsługują nowy format "detektorów zdarzeń", jak wyjaśniono w [tym blogu na temat aktualizacji silnika zdarzeń i dete](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)ktorów zdarzeń. Niezależnie od formatu detektora zdarzeń, zasada pozostaje taka sama: aplikacja powinna zarejestrować się, aby otrzymywać zdarzenia kontekstu aplikacji za pośrednictwem detektora dostarczonego przez SDK.
Jak wyszczególniono w [dokumentacji JavaScript SD](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)K, rejestracja zdarzeń App Context będzie wyglądać następująco:
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
Dokumentację opisującą sposób rejestracji zdarzeń App Context w innych językach można znaleźć w następujących lokalizacjach: [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) (należy pamiętać, że Python nazywa zdarzenia "metadanymi", podczas gdy inne zestawy SDK odnoszą się do zdarzeń jako "obiektów"), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) itp.
Praktyczny przykład i interaktywne demo można znaleźć w artykule [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
### Odbieranie zmian kontekstu aplikacji przez PubNub Chat SDK
PubNub Chat SDK udostępnia zdarzenia App Context poprzez rodzinę interfejsów API [streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
Kilka przykładów zaczerpniętych z [aplikacji Chat SDK Demo](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web) dla sieci Web:
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
Aby uzyskać działający przykład oparty na naszej prostszej próbce "uzyskiwania informacji" dla Chat SDK, zapoznaj się z artykułem [Jak zarządzać użytkownikami i kanałami za pomocą BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
Kontekst aplikacji i PubNub Illuminate
--------------------------------------
PubNub[Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) to produkt do podejmowania decyzji i analizy w czasie rzeczywistym, który można dostosować do unikalnego przypadku użycia organizacji. Produkt został zaprojektowany z myślą o menedżerach produktu i analitykach, umożliwiając im wykonywanie następujących czynności:
- Definiowanie niestandardowych zagregowanych wskaźników w czasie rzeczywistym.
- Konfigurowanie i wdrażanie reguł decyzyjnych z warunkami i akcjami.
- Natychmiastowe wizualizowanie śledzonych metryk, wykonywanych działań i ich wyników.
Wszystko to można robić w czasie rzeczywistym bez odrywania zespołu inżynierów od bieżących projektów.
Pełne wyjaśnienie, czym jest PubNub Illuminte i w jaki sposób może zapewnić natychmiastowy wgląd w dane, wykracza poza zakres tego artykułu, ale więcej informacji można znaleźć w naszej [dokumentacji](https://www.pubnub.com/docs/illuminate/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) i [przeglądzie produktu](https://www.pubnub.com/blog/real-time-decisioning-with-illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
Podsumowując: Definiujesz **metryki** związane z Twoją aplikacją, tj. rzeczy, które chcesz mierzyć. Na przykład w scenariuszu śledzenia zasobów mogą to być godziny od przyjęcia zamówienia. Gdy zostanie spełniony jakiś [**warunek**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) związany z tą metryką, np. "Godziny od zamówienia" mogą przekroczyć określoną wartość, można podjąć pewne **działania**.
To, które [działanie](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) zostanie podjęte, jest elastyczne, ale trzy z możliwych działań odnoszą się do App Context:
### Zaktualizuj użytkownika za pomocą PubNub Illuminate
Umożliwia ustawienie dowolnych predefiniowanych lub niestandardowych metadanych użytkownika. Poniższy zrzut ekranu pokazuje użytkownika o identyfikatorze 123, którego status został ustawiony na statyczną wartość "Nowy status", ale możliwe jest również ustawienie wartości dynamicznej w oparciu o **warunek**, który wyzwolił **akcję**.
### Kanał aktualizacji z PubNub Illuminate
Umożliwia ustawienie dowolnych predefiniowanych lub niestandardowych metadanych kanału. Poniższy zrzut ekranu pokazuje kanał o identyfikatorze 123, którego nazwa została ustawiona na wartość statyczną "Nowa nazwa", ale możliwe jest również ustawienie wartości dynamicznej na podstawie **warunku**, który wyzwolił **akcję**.
### Aktualizacja członkostwa za pomocą PubNub Illuminate
Umożliwia ustawienie dowolnych predefiniowanych lub niestandardowych metadanych członkostwa. Poniższy zrzut ekranu pokazuje członkostwo użytkownika o identyfikatorze 123 w kanale 123, którego status został ustawiony na wartość statyczną "Nowy status". Możliwe jest również ustawienie wartości dynamicznej w oparciu o **warunek**, który wyzwolił **akcję**.
Kontekst aplikacji i funkcje PubNub
-----------------------------------
PubNub udostępnia funkcje do przechwytywania zdarzeń zachodzących na platformie PubNub. Funkcje pozwalają pisać kod lub wykorzystywać istniejące integracje do przekształcania, przekierowywania, rozszerzania, filtrowania, a nawet agregowania danych. Więcej informacji na temat funkcji PubNub można znaleźć w [dokumentacji Fun](https://www.pubnub.com/docs/serverless/functions/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) ctions, ale w tym artykule omówimy, w jaki sposób funkcje PubNub odnoszą się do App Context.
### Aktualizacja App Context z poziomu PubNub Functions
Środowisko, w którym uruchamiane są funkcje, ma dostęp do [modułu PubNub](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl); moduł ten ma pełny dostęp do App Context na zestawie kluczy, a poniżej podano kilka przykładów zaczerpniętych z dokumentacji. :
Przykład dla Get [User App Context Metadata](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
Przykład dla [Set Channel](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) App Context Metadata
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
Wyczerpujący zestaw przykładów kodu można znaleźć w dokumentacji [modułu PubNub](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl).
### Wyzwalanie funkcji PubNub po zmianie kontekstu aplikacji
Istnieje wiele typów zdarzeń, które mogą wyzwalać funkcję, jak wyszczególniono w [dokumentacji typów](https://www.pubnub.com/docs/serverless/functions/overview#event-types?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) zdarzeń. Obejmują one możliwość wykrywania, kiedy wysyłane są wiadomości i sygnały, wyzwalania funkcji po wystąpieniu zdarzeń obecności oraz wykonywania funkcji w określonych odstępach czasu lub na żądanie. W chwili pisania tego tekstu **nie** jest możliwe wykonywanie funkcji po aktualizacji kontekstu aplikacji, ale jeśli okaże się, że Twoja aplikacja tego potrzebuje, skontaktuj się z naszym [zespołem pomocy technicznej](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), który z przyjemnością omówi Twoje przypadki użycia.
Następne kroki
--------------
Aby zobaczyć App Context w akcji, możesz sprawdzić nasze Chat [Demo](https://www.pubnub.com/demos/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), które wykorzystuje App Context wraz z naszym Chat SDK, aby pokazać, jak może wyglądać aplikacja czatu z bezserwerową pamięcią masową. Demo czatu pozwala ustawić metadane użytkownika i kanału oraz zobaczyć, jak zmiany te są propagowane do innych słuchaczy i członków w czasie rzeczywistym.
Zapoznaj się również z naszą powiązaną 3-częściową serią na temat przestrzeni roboczej BizOps, która zależy od App Context i obejmuje: [Zarządzanie użytkownikami i kanałami](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), [Monitorowanie i moderowanie konwersacji](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) oraz [Bezpieczne moderowanie](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) czatu.
Na koniec zachęcamy do skontaktowania się z zespołem DevRel pod adresem [devrel@pubnub.com](mailto:devrel@pubnub.com) lub skontaktowania się z naszym zespołem [pomocy](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) technicznej w celu uzyskania pomocy w dowolnym aspekcie rozwoju PubNub.
Jak PubNub może ci pomóc?
=========================
Ten artykuł został pierwotnie opublikowany na [PubNub.com](https://www.pubnub.com/how-to/use-app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl)
Nasza platforma pomaga programistom tworzyć, dostarczać i zarządzać interaktywnością w czasie rzeczywistym dla aplikacji internetowych, aplikacji mobilnych i urządzeń IoT.
Podstawą naszej platformy jest największa w branży i najbardziej skalowalna sieć komunikacyjna w czasie rzeczywistym. Dzięki ponad 15 punktom obecności na całym świecie obsługującym 800 milionów aktywnych użytkowników miesięcznie i niezawodności na poziomie 99,999%, nigdy nie będziesz musiał martwić się o przestoje, limity współbieżności lub jakiekolwiek opóźnienia spowodowane skokami ruchu.
Poznaj PubNub
-------------
Sprawdź [Live Tour](https://www.pubnub.com/tour/introduction/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl), aby zrozumieć podstawowe koncepcje każdej aplikacji opartej na PubNub w mniej niż 5 minut.
Rozpocznij konfigurację
-----------------------
Załóż [konto](https://admin.pubnub.com/signup/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) PubNub, aby uzyskać natychmiastowy i bezpłatny dostęp do kluczy PubNub.
Rozpocznij
----------
[Dokumenty](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl) PubNub pozwolą Ci rozpocząć pracę, niezależnie od przypadku użycia lub [zestawu SDK](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=pl). | pubnubdevrel | |
1,916,866 | Showdown of Smart TV Operating Systems: Which One Reigns Supreme in User Experience? | Smart TVs have thoroughly changed home entertainment in the digital age by providing a seamless mix... | 0 | 2024-07-09T06:44:00 | https://dev.to/emirysmith/showdown-of-smart-tv-operating-systems-which-one-reigns-supreme-in-user-experience-13ih | Smart TVs have thoroughly changed home entertainment in the digital age by providing a seamless mix of traditional television as well as internet-based content. With several operating systems (OS) fighting for supremacy, consumers’ best decision now mainly relies on the user experience. With an eye toward their strengths and shortcomings, this article investigates the top smart TV OS choices to assist consumers in determining which one rules supreme in user experience.
**Android TV: A Receptive Contender**
Created by Google, Android TV is notable for its adaptability and expansive app store. Its voice commands and tailored recommendations, rendered possible by its interaction with Google Assistant, help improve customer ease. With so many apps, games, and streaming services available from the Google Play Store, customers are guaranteed access to a wide spectrum of material. Chrome cast’s simplicity of casting from mobile devices also contributes to its attractiveness. For specialized environments such as hospitals and mental health facilities, the availability of an **[Anti ligature TV enclosure](https://www.lcdtvenclosure.com/anti-ligature-tv-solution)** ensures safe and secure use, preventing self-harm and enhancing safety. Nonetheless, the TV manufacturer will affect the user experience since not all brands apply the OS as the best fit. Some customers claim slow performance and sporadic faults, which would diminish the whole experience. Despite these problems, Android TV is a sought-after choice for those looking for a flexible and feature-rich platform.
**Roku TV: Easy Access and Simplicity**
The simplicity and user-friendly design of Roku TV is much acclaimed. The platform stresses the application’s simplicity, making it available even to people without computing knowledge. Users of the easily navigable home page can rapidly access streaming channels and apps. With so many free and paid titles available on Roku, consumers have plenty of choices for viewing.
Among Roku’s best features is its **[universal search capability](https://dev.to/docker/docker-desktops-global-search-capability-the-quest-for-the-lost-container-4900)**, which compiles results from several streaming services to quickly locate customers’ intended content. To improve user experience further, the Roku mobile app provides remote control features, voice search, and private listening using headphones.
Although Roku TV shines in simplicity, it could lack the sophisticated tools and customization choices of other running systems. Platforms like Android TV offer the flexibility to sideload programs or integrate smart home devices, which some customers might miss. Still, Roku’s emphasis on accessibility, much like the **[evolution of libraries](https://www.huffpost.com/entry/evolution-of-libraries-wh_b_12457688)** to become more inclusive and user-friendly, makes it a great choice for mental healthcare facilities coupled with an anti-ligature TV enclosure.
Finding the Best Fit Among the Two
Perfect for tech aficionados who appreciate customization and a large array of apps, Android TV presents a flexible and feature-rich experience. Roku TV offers a basic and easily navigable interface ideal for consumers who want quick access to a strong video library. It boasts of an Antiligaturetv enclosure that can improve the whole user experience for consumers concerned with durability and safety, particularly in hospitals or prisons, by guaranteeing a secure and tamper-proof configuration.
| emirysmith | |
1,916,867 | Unleashing the Power of React AI ChatBot: Revolutionizing User Engagement | Discover the transformative power of voicebots with Sista AI. Join the AI revolution today! 🚀 | 0 | 2024-07-09T06:46:00 | https://dev.to/sista-ai/unleashing-the-power-of-react-ai-chatbot-revolutionizing-user-engagement-om0 | ai, react, javascript, typescript | <h2>Unlocking the Future of Chatbots</h2><p>As artificial intelligence transforms frontend development, the integration of AI with React becomes inevitable. React AI ChatBot is revolutionizing user engagement by elevating applications to new heights. With AI waiting for no one, developers must embrace intelligence in their apps to stay competitive.</p><p>Imagine a React app with an intelligent chatbot empowered by RAG and vector embeddings. This chatbot seamlessly integrates real-time data like the latest product inventory to offer personalized interactions. The adaptability and context-awareness of the React app redefine user experiences, making them dynamic and proactive.</p><h2>Embracing AI Technologies in the Frontend</h2><p>Chatbots and copilots are transforming the landscape of web development, providing developers with invaluable resources and tools. By integrating AI into React, developers gain access to innovative solutions that enhance productivity and efficiency.</p><p>Using AI-powered search engines can further amplify user experiences by delivering precise and customized responses. These engines leverage machine learning and natural language processing to understand user queries at a deeper level, revolutionizing the way applications interact with users.</p><h2>Sista AI: Redefining AI Integration</h2><p><strong>Sista AI</strong> is an end-to-end AI integration platform that empowers apps with intelligent voice assistants in minutes. The Conversational AI Agents and Voice User Interface offer multi-language support for engaging interactions. Seamlessly integrating real-time data, automatic screen readers, and personalized customer support, Sista AI revolutionizes user engagement.</p><p>With features like Multi-Tasking UI Controller and Full-Stack Code Execution, Sista AI enables hands-free interactions and dynamic code execution. The platform's limitless auto scalability ensures seamless growth, adapting to evolving user demands effortlessly.</p><h2>Transforming User Experiences with Sista AI</h2><p>By leveraging Sista AI's innovative solutions, businesses can enhance user engagement, accessibility, and operational efficiency. The platform's intuitive voice commands reduce user effort, while personalized customer support ensures swift and efficient responses.</p><p>Visit <a href='https://smart.sista.ai/?utm_source=sista_blog&utm_medium=blog_post&utm_campaign=Unleashing_the_Power_of_React_AI_ChatBot'>Sista AI</a> today and experience the future of AI integration firsthand!</p><br/><br/><a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=big_logo" target="_blank"><img src="https://vuic-assets.s3.us-west-1.amazonaws.com/sista-make-auto-gen-blog-assets/sista_ai.png" alt="Sista AI Logo"></a><br/><br/><p>For more information, visit <a href="https://smart.sista.ai?utm_source=sista_blog_devto&utm_medium=blog_post&utm_campaign=For_More_Info_Banner" target="_blank">sista.ai</a>.</p> | sista-ai |
1,916,868 | Using instancedSkinnedMesh in Three.js, enabling the rendering of hundreds of 3D characters on screen simultaneously | In Threejs products, we all know that object instantiation is necessary to improve rendering... | 0 | 2024-07-09T06:46:23 | https://dev.to/sagacheng/using-instancedskinnedmesh-in-threejs-enabling-the-rendering-of-hundreds-of-3d-characters-on-screen-simultaneously-15gm | threejs, webdev, javascript | In Threejs products, we all know that object instantiation is necessary to improve rendering performance. However, the official instancedMesh provided by Threejs only supports static objects. In our product https://timmerse.com, we need to accommodate dozens or even hundreds of people participating in the same event. During testing, we found that when the number of Avatars exceeds twenty, it causes frame drops on the page. It cannot achieve a smooth rendering efficiency of 60 frames per second.
We have made several optimization attempts for 3D rendering:
1. Reducing draw calls
We performed model simplification, reducing the number of triangles in the scene as much as possible without affecting the overall rendering effect. There's a general method for this, and since our scene is already low-poly, many elements still maintain good rendering quality after simplification. This significantly reduced the number of triangles in the scene. Additionally, some advanced rendering effects, such as CSM (Cascaded Shadow Maps), are only enabled on high-performance machines. Below is an implementation of GPU performance detection capability:
```js
export class GpuDetector {
gpu: string;
_level: 'high' | 'low' | 'middle' = 'high';
constructor() {
this.gpu = getGPUModel();
this.detectPC();
isMobileOrCloud ? this.detectMobile() : this.detectPC();
console.log('GPU: ', this.gpu, ';level:', this._level);
}
get level(): 'high' | 'low' | 'middle' {
return this._level;
}
detectMobile() {
if (iOS) {
this._level = window.screen.height >= 812 && window.devicePixelRatio >= 2 ? 'high' : 'low';
}
if (/adreno/i.test(this.gpu)) {
this._level = this.adrenoGPU();
} else if (/mali/i.test(this.gpu)) {
this._level = this.maliGPU();
} else if (/powervr/i.test(this.gpu)) {
this._level = this.powerVRGPU();
}
}
detectPC() {
if (!this.gpu) {
this._level = 'low'
}
/apple m/i.test(this.gpu)
? (this._level = 'high')
: /apple/i.test(this.gpu)
? (this._level = 'middle')
: /nvidia/i.test(this.gpu)
? (this._level = this.nvidiaGPU())
: /amd/i.test(this.gpu)
? (this._level = this.amdGPU())
: /intel/i.test(this.gpu) && (this._level = this.intelGPU());
}
powerVRGPU() {
return /GT8/i.test(this.gpu) ? 'high' : 'low';
}
adrenoGPU() {
var r = /^.+adreno\D+(\d+).+$/i.exec(this.gpu);
if (r !== null) {
var t = parseInt(r[1]);
return t > 640 ? 'high' : t >= 570 ? 'middle' : 'low';
}
var e = this.gpu.split(' '),
t = parseInt(e[e.length - 1]);
return t > 640 ? 'high' : t >= 570 ? 'middle' : 'low';
}
maliGPU() {
if (/mali-g/i.test(this.gpu)) {
var e = this.gpu.split('Mali-G'),
t = parseInt(e[e.length - 1]);
return t > 77 ? 'high' : 76 === t || 31 === t || 52 === t ? 'middle' : 'low';
}
return 'low';
}
nvidiaGPU() {
return /(rtx|titan)/i.test(this.gpu) ? 'high' : /gtx/i.test(this.gpu) ? 'middle' : 'low';
}
amdGPU() {
if (/(pro|radeon vii)/i.test(this.gpu)) return 'middle';
// if (/(pro|radeon vii)/i.test(this.gpu)) return 'high';
if (/(rx)/i.test(this.gpu)) {
var e = this.gpu.split('RX ');
return parseInt(e[e.length - 1]) > 560 ? 'middle' : 'low';
// return parseInt(e[e.length - 1]) > 560 ? 'high' : 'middle';
}
return 'middle';
}
// Intel gpu
intelGPU() {
if (/iris/i.test(this.gpu)) {
if (/opengl engine/i.test(this.gpu)) return 'middle';
var e = this.gpu.split('Graphics ');
return parseInt(e[1]) >= 650 ? 'middle' : 'low';
}
if (/HD/i.test(this.gpu)) {
var t = this.gpu.split('HD ');
return parseInt(t[1]) > 7e3 ? 'middle' : 'low';
}
return /apple/i.test(this.gpu) ? 'middle' : 'low';
}
}
```
2. Reduce texture size
Skybox textures, textures for various Avatar components, image and video assets. There's also a deeply hidden texture path for user-uploaded model textures. We can use https://gltf.report/ to analyze the specific GPU size occupied by textures in model files. I've written an analysis tool that can scan glb files in a directory and analyze and locate model issues.
```js
const fs = require('fs');
const path = require('path');
const { Document, NodeIO } = require('@gltf-transform/core');
const { execSync } = require('child_process');
const {
KHRDracoMeshCompression,
KHRMaterialsEmissiveStrength,
KHRMaterialsSpecular,
KHRMaterialsIOR,
KHRMaterialsClearcoat,
KHRMaterialsIridescence,
KHRMeshQuantization,
EXTMeshoptCompression,
} = require('@gltf-transform/extensions');
const draco3d = require('draco3dgltf');
const meshopt = require('meshoptimizer');
(async () => {
let totalGPUMemory = 0;
const resList = [];
function inspectFile(filePath) {
const output = execSync(`gltf-transform inspect "${filePath}"`, { encoding: 'utf-8' });
console.log(output);
}
async function processFile(filePath) {
const io = new NodeIO()
.registerExtensions([
KHRDracoMeshCompression,
KHRMaterialsEmissiveStrength,
KHRMaterialsSpecular,
KHRMaterialsIOR,
KHRMaterialsClearcoat,
KHRMaterialsIridescence,
KHRMeshQuantization,
EXTMeshoptCompression,
])
.registerDependencies({
'draco3d.decoder': await draco3d.createDecoderModule(),
'meshopt.decoder': await meshopt.MeshoptDecoder,
});
let document;
try {
document = await io.read(filePath);
} catch (error) {
console.error(`Error reading ${filePath}:`, error);
return;
}
let fileGPUMemory = 0;
document
.getRoot()
.listTextures()
.forEach(texture => {
const image = texture.getImage();
const dimensions = texture.getSize();
if (image && dimensions) {
// Assuming 4 bytes per pixel (RGBA)
const memorySize = dimensions[0] * dimensions[1] * 4;
fileGPUMemory += memorySize;
}
});
const res = `${fileGPUMemory / 1024 / 1024} MB texture GPU memory: ${filePath}`;
resList.push(res);
}
async function traverseDirectory(directoryPath) {
const files = fs.readdirSync(directoryPath);
for (const file of files) {
const fullPath = path.join(directoryPath, file);
if (fs.statSync(fullPath).isDirectory()) {
await traverseDirectory(fullPath);
} else if (fullPath.endsWith('.glb') || fullPath.endsWith('.gltf')) {
await processFile(fullPath);
}
}
}
// await traverseDirectory(path.resolve(__dirname, 'models'));
await traverseDirectory(path.resolve(__dirname, '../../../avatar'))
resList.sort((a, b) => {
const aMemory = parseFloat(a.split(' ')[0]);
const bMemory = parseFloat(b.split(' ')[0]);
return bMemory - aMemory;
});
console.log(resList);
fs.writeFileSync('./gpu-memory.txt', resList.join('\n'), 'utf-8');
})();
```
3.Instantiation of Skinned Meshes
After completing the two optimizations mentioned above, large scenes can now run smoothly on both PC and mobile devices when there are relatively few Avatars. The current bottleneck is now with the Avatars themselves. Our Avatars have more than ten components: hairstyles, facial features, clothing, etc. Since the characters support movement and can perform many skeletal animations, each Avatar's skinned mesh represents a significant performance cost. With 20 people, there are over 200 skinned meshes in the scene, which already creates a performance bottleneck in rendering.
Regarding the discussion of instancedSkinnedMesh in the three.js issues: https://github.com/mrdoob/three.js/pull/22667, here's the extracted core code
```js
import * as THREE from 'three'
const _instanceLocalMatrix = /*@__PURE__*/ new THREE.Matrix4()
const _instanceWorldMatrix = /*@__PURE__*/ new THREE.Matrix4()
const _offsetMatrix = /*@__PURE__*/ new THREE.Matrix4()
const _identityMatrix = /*@__PURE__*/ new THREE.Matrix4()
const _instanceIntersects = []
let patchedChunks = false
export class InstancedSkinnedMesh extends THREE.SkinnedMesh {
constructor(geometry, material, count = 1) {
super(geometry, material)
this.instanceMatrix = new THREE.InstancedBufferAttribute(
new Float32Array(count * 16),
16
)
this.instanceColor = null
this.instanceBones = null
this.count = count
this.frustumCulled = false
this._mesh = null
this.isInstancedMesh = true
const bind = this.bind.bind(this)
this.bind = function (skeleton, bindMatrix) {
bind(skeleton, bindMatrix)
this.skeleton.update = (instanceBones, id) => {
const bones = this.skeleton.bones
const boneInverses = this.skeleton.boneInverses
const boneMatrices = instanceBones || this.skeleton.boneMatrices
const boneTexture = this.skeleton.boneTexture
const instanceId = id || 0
// flatten bone matrices to array
for (let i = 0, il = bones.length; i < il; i++) {
// compute the offset between the current and the original transform
const matrix = bones[i] ? bones[i].matrixWorld : _identityMatrix
_offsetMatrix.multiplyMatrices(matrix, boneInverses[i])
_offsetMatrix.toArray(
boneMatrices,
16 * (i + instanceId * bones.length)
)
}
if (boneTexture !== null) {
boneTexture.needsUpdate = true
}
}
this.skeleton.computeBoneTexture = this.skeleton.computeInstancedBoneTexture = () => {
this.skeleton.boneTexture = new THREE.DataTexture(
this.instanceBones,
this.skeleton.bones.length * 4,
this.count,
THREE.RGBAFormat,
THREE.FloatType
)
this.skeleton.boneTexture.needsUpdate = true
}
}
// Patch three.js skinning shader chunks for points and instanced bones
if (!patchedChunks) {
patchedChunks = true
THREE.ShaderChunk.points_vert = THREE.ShaderChunk.points_vert.replace(
'#include <clipping_planes_pars_vertex>',
'#include <clipping_planes_pars_vertex>\n#include <skinning_pars_vertex>'
)
THREE.ShaderChunk.points_vert = THREE.ShaderChunk.points_vert.replace(
'#include <morphtarget_vertex>',
'#include <skinbase_vertex>\n#include <morphtarget_vertex>\n#include <skinning_vertex>'
)
// Update PointsMaterial
THREE.ShaderLib.points.vertexShader = THREE.ShaderChunk.points_vert
THREE.ShaderChunk.skinning_pars_vertex = /* glsl */ `
#ifdef USE_SKINNING
uniform mat4 bindMatrix;
uniform mat4 bindMatrixInverse;
uniform highp sampler2D boneTexture;
uniform int boneTextureSize;
mat4 getBoneMatrix( const in float i ) {
#ifdef USE_INSTANCING
int j = 4 * int(i);
vec4 v1 = texelFetch(boneTexture, ivec2( j, gl_InstanceID ), 0);
vec4 v2 = texelFetch(boneTexture, ivec2( j + 1, gl_InstanceID ), 0);
vec4 v3 = texelFetch(boneTexture, ivec2( j + 2, gl_InstanceID ), 0);
vec4 v4 = texelFetch(boneTexture, ivec2( j + 3, gl_InstanceID ), 0);
#else
float j = i * 4.0;
float x = mod( j, float( boneTextureSize ) );
float y = floor( j / float( boneTextureSize ) );
float dx = 1.0 / float( boneTextureSize );
float dy = 1.0 / float( boneTextureSize );
y = dy * ( y + 0.5 );
vec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );
vec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );
vec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );
vec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );
#endif
mat4 bone = mat4( v1, v2, v3, v4 );
return bone;
}
#endif
`
}
}
copy(source) {
super.copy(source)
if (source.isInstancedMesh) {
this.instanceMatrix.copy(source.instanceMatrix)
if (source.instanceColor !== null)
this.instanceColor = source.instanceColor.clone()
this.count = source.count
}
return this
}
getColorAt(index, color) {
color.fromArray(this.instanceColor.array, index * 3)
}
getMatrixAt(index, matrix) {
matrix.fromArray(this.instanceMatrix.array, index * 16)
}
raycast(raycaster, intersects) {
const matrixWorld = this.matrixWorld
const raycastTimes = this.count
if (this._mesh === null) {
this._mesh = new THREE.SkinnedMesh(this.geometry, this.material)
this._mesh.copy(this)
}
const _mesh = this._mesh
if (_mesh.material === undefined) return
for (let instanceId = 0; instanceId < raycastTimes; instanceId++) {
// calculate the world matrix for each instance
this.getMatrixAt(instanceId, _instanceLocalMatrix)
_instanceWorldMatrix.multiplyMatrices(matrixWorld, _instanceLocalMatrix)
// the mesh represents this single instance
_mesh.matrixWorld = _instanceWorldMatrix
_mesh.raycast(raycaster, _instanceIntersects)
// process the result of raycast
for (let i = 0, l = _instanceIntersects.length; i < l; i++) {
const intersect = _instanceIntersects[i]
intersect.instanceId = instanceId
intersect.object = this
intersects.push(intersect)
}
_instanceIntersects.length = 0
}
}
setColorAt(index, color) {
if (this.instanceColor === null) {
this.instanceColor = new THREE.InstancedBufferAttribute(
new Float32Array(this.instanceMatrix.count * 3),
3
)
}
color.toArray(this.instanceColor.array, index * 3)
}
setMatrixAt(index, matrix) {
matrix.toArray(this.instanceMatrix.array, index * 16)
}
setBonesAt(index, skeleton) {
skeleton = skeleton || this.skeleton
const size = skeleton.bones.length * 16
if (this.instanceBones === null) {
this.instanceBones = new Float32Array(size * this.count)
}
skeleton.update(this.instanceBones, index)
}
updateMorphTargets() {}
dispose() {
this.dispatchEvent({ type: 'dispose' })
}
}
```
4.Business code optimization
After completing the above three major performance optimizations, what remains are the code snippets written by business colleagues that unintentionally affect the rendering process. This part is relatively easy to identify using Chrome's DevTools, so I won't elaborate further.
### Optimization Results
After the series of optimizations mentioned above, we achieved having over a hundred people in a unified space while maintaining 60 frames per second performance on [https://timmerse.com](https://timmerse.com/).
You can enter our Demo page for further experience:
| sagacheng |
1,916,870 | Future Prospects: Trends Shaping the Future of Sustainable Pharma Packaging | The report "Sustainable Pharmaceutical Packaging Market by Raw Material (Plastics, Paper &... | 0 | 2024-07-09T06:48:45 | https://dev.to/aryanbo91040102/future-prospects-trends-shaping-the-future-of-sustainable-pharma-packaging-13c6 | news | The report "Sustainable Pharmaceutical Packaging Market by Raw Material (Plastics, Paper & paperboard, Glass, Metal), Product Type, Process (Recyclable, Reusable, and Biodegradable), Packaging Type(Primary Packaging), and Region - Global Forecast to 2027", size is projected to grow from USD 71.6 billion in 2022 to USD 146.3 billion by 2027, at a CAGR of 15.4%.
Browse in-depth TOC on "Sustainable Pharmaceutical Packaging Market"
227 – Tables
45 – Figures
286 – Pages
Download PDF Brochure: [https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=72534537](https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=72534537)
The sustainable pharmaceutical packaging market is segmented based on packaging type, product type, process, raw material, and region. The sustainable pharmaceutical packaging market, based on region, is segmented into North America, Europe, Asia Pacific, Middle East & Africa, and South America. The sustainable pharmaceutical packaging industry has been growing due to stringent laws and regulations levied by governments and governing bodies, as well as a shift in consumer preferences towards recyclable and eco-friendly packaging materials. Downsizing of packaging and breakthrough in new technologies are driving the sustainable pharmaceutical packaging market globally. However, the high cost of recycling and the poor infrastructure available for recycling processes are likely to hamper the growth of this market.
Based on raw material, metal is projected to register the third largest market share during the forecast period.
The metal packaging market has been advancing recently, and an increasingly diverse range of metal packaging materials is being applied. Metal is the most versatile of all packaging forms. It offers a combination of excellent physical protection and barrier properties, formability and decorative potential, recyclability, and consumer acceptance. Raw materials used in metals, such as steel and aluminum, with their recyclable properties, are a grade above other packaging materials, such as a polymer. Both aluminum and steel are non-toxic materials.
Based on process, reusable is projected to register the third highest CAGR during the forecast period.
Reusable packaging can be defined as a particular type of packaging that can be used multiple times without impairing its protective function. Such packaging is more expensive than single-use packaging, as it has more strength and durability. However, as it can be reused, it need not be dumped after use, thus reducing waste. Also, because it is more robust than ordinary packaging, it offers better protection for the product. Some advantages and drivers of reusable packaging include lesser overall packaging costs, reduced product damage of expensive products, and cheaper labor costs. The reusable packaging does not require to be dumped in landfills and prevention of waste from entering the solid waste stream.
Request Sample Pages: [https://www.marketsandmarkets.com/requestsampleNew.asp?id=72534537](https://www.marketsandmarkets.com/requestsampleNew.asp?id=72534537)
Based on packaging type, primary packaging is projected to register the highest CAGR during the forecast period.
Primary packaging in sustainable pharmaceutical packaging industry refers to the first layer of packaging that comes into direct contact with the drug product. The main goal is to provide protection and preservation of the product. Sustainable primary packaging materials aim to minimize environmental impact, reduce waste and conserve resources by using eco-friendly and biodegradable materials like paper, cellulose, or bioplastics. Additionally, pharmaceutical companies are adopting innovative packaging designs, such as lighter weight packaging and reducing the use of materials, to reduce waste and minimize their carbon footprint. The use of reusable and refillable packaging is also being explored as a way to reduce waste. Overall, sustainable primary packaging is a key aspect in the push towards a more environmentally responsible pharmaceutical industry.
Based on region, South America is projected to register the second highest CAGR during the forecast period.
South America is a region that is increasingly focused on sustainability and the pharmaceutical industry is no exception. Pharmaceutical companies in South America are exploring innovative ways to reduce their environmental footprint and improve sustainability in their packaging. In recent years, there has been a growing interest in eco-friendly packaging options such as biodegradable plastics, recyclable plastics, paper-based packaging, and reusable containers. Additionally, the regulatory landscape in South America is becoming more stringent with regards to environmental protection and sustainability. Governments are imposing stricter regulations on packaging waste and sustainability practices, leading to a shift towards more sustainable packaging solutions. An increase in recycling collection processes for waste materials can lead to the growth of the sustainable pharmaceutical packaging market. This is because recycling can help to reduce the amount of waste generated by the pharmaceutical industry and promote the use of environmentally friendly packaging materials.
Get 10% Customization on this Report: [https://www.marketsandmarkets.com/requestCustomizationNew.asp?id=72534537](https://www.marketsandmarkets.com/requestCustomizationNew.asp?id=72534537)
Key Market Players
The key players in the pharmaceutical packaging market include Schott AG (Germany), Amcor PLC (Switzerland), AptarGroup,Inc (US), West Pharmaceutical Services, Inc. (US), Berry Global (US), Gerresheimer AG (Germany), Catalent,Inc (US), and WestRock (US). These players have established a strong foothold in the market by adopting strategies, such as new product launches, investment & expansions, agreements, partnerships, and mergers & acquisitions.
Gerresheimer AG is a leading company for medicine packaging, drug delivery devices, and providing solutions for pharma. The company is primarily engaged in the manufacturing and supply of glass and plastic packaging solutions for the global pharmaceutical and healthcare industries. It operates through three business segments, namely, plastics & devices, primary packaging glass, and advanced technologies. It conducts its pharmaceutical packaging business through its primary packaging glass and plastics & devices segments. The company operates 36 manufacturing plants in 16 countries across Europe, the Americas, and Asia. The operations are in Mexico, Poland, Switzerland, India, Singapore, the Czech Republic, Belgium, Brazil, China, Denmark, France, North Macedonia, Spain, and the US. It has more than 10,000 employees, out of which 4,504 are in the plastic & devices segment and 5,333 in the primary packaging glass segment.
TABLE OF CONTENTS
1 INTRODUCTION (Page No. - 34)
1.1 STUDY OBJECTIVES
1.2 MARKET DEFINITION
1.3 STUDY SCOPE
1.3.1 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET SEGMENTATION
1.3.2 REGIONAL SCOPE
1.4 YEARS CONSIDERED
1.5 CURRENCY CONSIDERED
1.6 UNIT CONSIDERED
1.7 STAKEHOLDERS
1.8 INCLUSIONS AND EXCLUSIONS
TABLE 1 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET: INCLUSIONS AND EXCLUSIONS
1.9 SUMMARY OF CHANGES
1.10 LIMITATIONS
2 RESEARCH METHODOLOGY (Page No. - 39)
2.1 RESEARCH DATA
FIGURE 1 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET: RESEARCH DESIGN
2.1.1 SECONDARY DATA
2.1.1.1 Key data from secondary sources
2.1.2 PRIMARY DATA
2.1.2.1 Key data from primary sources
2.1.2.2 Key primary insights
FIGURE 2 LIST OF STAKEHOLDERS AND BREAKDOWN OF PRIMARY INTERVIEWS
2.2 MARKET SIZE ESTIMATION
FIGURE 3 MARKET SIZE ESTIMATION: BOTTOM-UP APPROACH
FIGURE 4 MARKET SIZE ESTIMATION: TOP-DOWN APPROACH
FIGURE 5 MARKET SIZE ESTIMATION: SUPPLY SIDE
2.3 DATA TRIANGULATION
FIGURE 6 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET: DATA TRIANGULATION
2.4 RESEARCH ASSUMPTIONS
2.5 RESEARCH LIMITATIONS
2.6 GROWTH FORECAST
3 EXECUTIVE SUMMARY (Page No. - 47)
FIGURE 7 PLASTICS TO HOLD LARGEST SHARE IN SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
FIGURE 8 PRIMARY PACKAGING TO BE FASTER-GROWING SEGMENT OF SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
FIGURE 9 BIODEGRADABLE SEGMENT TO GROW AT HIGHEST CAGR FROM 2022 TO 2027
FIGURE 10 ASIA PACIFIC TO BE FASTEST-GROWING PHARMACEUTICAL PACKAGING MARKET DURING FORECAST PERIOD
4 PREMIUM INSIGHTS (Page No. - 50)
4.1 ATTRACTIVE OPPORTUNITIES FOR PLAYERS IN SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
FIGURE 11 EMERGING ECONOMIES TO OFFER ATTRACTIVE OPPORTUNITIES IN SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
4.2 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET, BY RAW MATERIAL
FIGURE 12 PLASTICS SEGMENT TO REGISTER HIGHEST CAGR FROM 2022 TO 2027
4.3 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET, BY REGION AND RAW MATERIAL, 2021
FIGURE 13 NORTH AMERICA AND PLASTICS SEGMENT ACCOUNTED FOR LARGEST SHARES
4.4 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET, BY KEY COUNTRIES
FIGURE 14 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET IN INDIA TO WITNESS HIGHEST CAGR
5 MARKET OVERVIEW (Page No. - 53)
5.1 INTRODUCTION
5.2 MARKET DYNAMICS
FIGURE 15 DRIVERS, RESTRAINTS, OPPORTUNITIES, AND CHALLENGES IN SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
5.2.1 DRIVERS
5.2.1.1 Government initiatives for sustainable packaging
5.2.1.2 Consumer preference toward recyclable and eco-friendly materials
5.2.1.3 Downsizing of packaging
5.2.1.4 Breakthrough in new technologies and innovations
5.2.1.5 High growth in generics and biopharmaceuticals markets
5.2.2 RESTRAINTS
5.2.2.1 Poor infrastructure facilities for recycling
5.2.2.2 Lack of awareness of sustainability
5.2.2.3 High packaging costs
5.2.3 OPPORTUNITIES
5.2.3.1 Growing demand for primary pharmaceutical packaging
5.2.4 CHALLENGES
5.2.4.1 Volatile raw material prices
5.3 VALUE CHAIN ANALYSIS
FIGURE 16 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET: VALUE CHAIN ANALYSIS
5.3.1 RAW MATERIAL SUPPLIERS
5.3.2 R&D OF PRODUCTS
5.3.3 MANUFACTURERS
5.3.4 DISTRIBUTORS
5.3.5 END USERS
5.3.6 POST-DISPOSAL PROCESS
TABLE 2 SUSTAINABLE PHARMACEUTICAL PACKAGING MARKETING: VALUE CHAIN STAKEHOLDERS
5.4 PORTER'S FIVE FORCES ANALYSIS
FIGURE 17 PORTER'S FIVE FORCES ANALYSIS OF SUSTAINABLE PHARMACEUTICAL PACKAGING MARKET
5.4.1 THREAT OF NEW ENTRANTS
5.4.2 THREAT OF SUBSTITUTES
5.4.3 BARGAINING POWER OF BUYERS
5.4.4 BARGAINING POWER OF SUPPLIERS
5.4.5 INTENSITY OF COMPETITIVE RIVALRY
Continued... | aryanbo91040102 |
1,916,871 | An Important Guide to Fleet Management Software Development | Many companies are increasingly investing heavily in fleet management software because it automates... | 0 | 2024-07-09T06:48:54 | https://dev.to/celestialinfosoft/an-important-guide-to-fleet-management-software-development-320k | fleetmangement, iot, fleetmanagementsoftware, softwaredevelopment | Many companies are increasingly investing heavily in fleet management software because it automates daily tasks, reduces operating costs, and increases customer satisfaction. many companies like [Samasara](https://www.samsara.com/), fleetio, and other companies provide fleet software services.
The fleet management software market reached **$16.9 billion** by 2020 and is expected to surpass **$19.6 billion** by the end of 2021, according to a report by Fortune Business Insights. Here Fleetrio Develops their fleet management software for their convenience. you can also read how to [start your own fleet management company](https://celestialinfosoft.com/how-to-start-a-fleet-management-company/) like fleetrio.
Due to this growth and great interest, we decided to explore the topic of fleet management software development. In this guide, we cover the following:
1. What is fleet management software
2. Top fleet management software solutions available
3. Essential features of logistics management software
4. Costs related to fleet management software
5. Basic steps to creating your fleet management system
Let’s get involved.
## What is Fleet Management Software?
[Fleet management software](https://celestialinfosoft.com/fleet-management-software-development/) is a complete tool designed to streamline the operation, management, and movement of vehicles. It enables businesses to manage and maintain their vehicles, monitor driver behavior, design quality roads, and ensure compliance with regulatory requirements. By integrating services in a single platform, fleet management software helps companies reduce operating costs, improve safety, and increase overall efficiency The software incorporates advanced technologies such as GPS tracking, AI, and data analytics to provide real-time insights and automate the many manual processes involved in fleets.
## Must-Have Fleet Management Software Features
### 1. Vehicle GPS tracking
This feature allows fleet managers to track the real-time location of their vehicles, ensuring they are on the right roads complying with GPS tracking systems helps optimize roads, reduces fuel consumption, and improves overall vehicle efficiency.
### 2. Monitoring driver behavior
Monitoring driver behavior is essential to enhance safety and reduce accident risk. This feature monitors driving behavior, such as acceleration, braking stiffness, and acceleration, providing valuable insights that can be used to improve driver training and performance.
### 3. Fuel Consumption
Efficient fuel management is essential to control costs and reduce the environmental impact of the fleet. This feature also helps to monitor fuel consumption, identify waste sources, and improve fuel efficiency through better road layout and driving practices.
### 4. Trip Logging and Mileage Functionality
By automatically recording trips, Mileage Accounting supports accurate record keeping, which is critical for payment, maintenance planning, and regulatory reporting This feature ensures that all trips are recorded accurately, and mileage is accurately calculated, reducing the administrative burden on fleet managers.
## Fleet Management Software Development: Key Steps
### 1. Establish your business objectives
Before you start developing fleet management software, it is important to clearly define your business objectives. Determine what you aim to achieve with the software, such as reducing operating costs, improving security, or improving customer service. Having clear objectives will guide the development process and ensure that the final product meets your specific needs.
### 2. Define the right software
A variety of fleet-specific software is available, from basic monitoring systems to more advanced solutions with advanced features such as AI and machine learning Define the type of software that is right for you in the needs of the work. Consider factors such as the size of your fleet, the complexity of your operations, and your budget.
### 3. Choose a development method
You can develop the software in-house, outsource it to a software development company, or opt for a SaaS solution. There are pros and cons to each option. In-house development gives you full control but requires significant resources and expertise. Outsourcing can be more cost-effective and allow for professional developers, while SaaS solutions offer faster deployment and lower upfront costs but can have limited customization options.
## The last word
The development of automotive management software is an investment that can provide significant benefits to the businesses served by vehicles. By adding essential features such as GPS tracking, driver behavior tracking, fuel monitoring, trip logs, and more, businesses can improve the efficiency of their fleets, reduce costs and improve security is worthy of efficiency, increase customer satisfaction, and establish your business's long-term success.
| celestialinfosoft |
1,916,951 | Print function 1 | This is with and without python file saving difference also run in visual studio code One... | 0 | 2024-07-09T08:03:23 | https://dev.to/s_dhivyabharkavi_42e8315/print-function-1g48 |
This is with and without python file saving difference also run in visual studio code
One difference if file name is print1, only run with correspond name and else file name with print2.py only run with include.py if not error appears
1. Basic print function
2. Using variables
3. Printing multiple variables
4. Formatted strings with f-strings
5. Concatenation of strings
6. Using escape sequences
7. Printing quotes inside strings
8. Raw strings to ignore escape sequences
9. Printing numbers
10. Printing results of expressions
Basic print function
Using variables
Printing multiple variables
Formatted strings with f-strings
Concatenation of strings
Using escape sequences
Printing quotes inside strings
Raw strings to ignore escape sequences
Printing numbers
Printing results of expressions
| s_dhivyabharkavi_42e8315 | |
1,916,872 | アプリコンテキストの使い方 | PubNub App Contextは、ユーザー、チャンネル、会員情報のための使いやすいサーバーレスストレージです。 | 0 | 2024-07-09T06:49:29 | https://dev.to/pubnub-jp/apurikontekisutonoshi-ifang-112i | PubNub[App Contextは](https://www.pubnub.com/products/app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、User、Channel、およびMembership情報のサーバレスストレージメカニズムを提供することで、複雑なリアルタイム機能の開発を簡素化します。 App Contextはデータが変更されるたびにイベントをトリガーし、アプリをリアルタイムで更新できるようにします。また、保存されたデータは[Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Functions](https://www.pubnub.com/products/functions/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、その他のPubNubサービスで使用でき、よりスマートな意思決定を行うことができます。 また、[BizOps Workspaceを](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)使用することで、コード不要の直感的なインターフェイスでこのデータを管理できます。
アプリコンテキストとは？
------------
[アプリコンテキスト](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)（旧称オブジェクト）により、次のことが可能になります：
- アプリケーション内のユーザーとチャネル、およびそれらの間の関係に意味を持たせます。
- すべてのエンティティのメタデータをサーバーに保存し、クライアントにグローバルな真実のソースを簡単に提供できます。 Userは人間を表す必要はなく、代わりにデバイスのステータスをUserオブジェクトに保存するのが一般的です。
- オブジェクトの値が変更されると、即座にリアルタイムのイベントを受け取ることができる。
どんなアプリケーションでも App Context を使用することができますが、[チャットソリューションを](https://www.pubnub.com/solutions/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)作成する開発者には特に人気があります。
App Context は、[ユーザーと](https://www.pubnub.com/docs/general/metadata/users-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja) [チャンネルに](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)推奨されるフィールドのセットと、それらの間の[メンバーシップに](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)推奨されるフィールドを提供します。 これらのフィールドのほとんどはオプションなので、どのフィールドを入力するか選択したり、独自のカスタムフィールドを提供することができます。
App Contextの使用例
---------------
前述の通り、App Context はチャットソリューションを作成する開発者に特に人気がありますが、様々なユースケースで使用することができます：
- **チャット：**ユーザー情報（名前、プロフィール写真、「休暇中」ステータス、役職）、チャンネル情報（アイコン、説明、視聴者）、ユーザーの役割を保存し、チャンネルごと、ユーザーごとに最後に読まれたメッセージを追跡します。
- **スポーツ、メディア、エンターテイメント**ライブ投票、ライブトリビア、リアルタイム入札、商品やプロモーションのCTA（コール・トゥ・アクション）オーバーレイ。
- **ゲーム**プレイヤーレベル、獲得ゲーム、バッジを含むリアルタイムのプレイヤー統計、リーダーボードのトラッキングと管理
- **その他**ユーザー不在/アクティブステータス、不正検出のためのユーザー信頼スコア、ユーザー位置追跡、バッテリー残量や最後のセンサー読み取り値などのIoTデバイスステータス
アプリコンテキストを有効にする方法
-----------------
App Contextは、以下の手順で有効にできます：
1. [管理者ポータルに](https://admin.pubnub.com/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)ログインする。
2. ポータルの左側にある「Apps（アプリ）」タブをクリックします。
3. アプリケーションをクリックします。 このアプリケーションのキーセットページが表示されます。
4. まだ作成していない場合は、「Create New Keyset」ボタンをクリックして新しいキーセットを作成します。 キーセットの設定ページが表示されます。
5. スライダーをクリックしてApp Contextを有効にします。
6. **Bucket Region（バケット領域**）の設定は、データが保存される領域です。 キーセットの変更を保存した後は、このリージョンを変更できないことに注意。
7. **User Metadata Eventsと** **Channel Metadata Events**の設定が有効な場合、後述するように、データベースにデータが設定または削除されると、ユーザとチャネルのイベントがトリガされます。
8. **メンバーシップ・イベント**\]設定が有効な場合、後述するように、メンバーシップが追加、更新、または削除されると、メンバーシップ・イベントがトリガされます。
9. 残りのオプションはこの記事の範囲外ですが、詳細については[App Contextのドキュメントを](https://www.pubnub.com/docs/general/metadata/basics#configuration?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)参照してください。
10. **Save Changesを**クリックして、更新された変更を保存します。
ユーザーアプリコンテキスト
-------------
新しいユーザーがあなたのアプリケーションに登録されると、おそらく外部のIDプロバイダを介して、PubNubに対してそのユーザーを一意に識別する何らかの方法があるでしょう。 これは、ユーザーのクライアントがPubNub SDKを初期化するために使用する[ユーザーID](https://www.pubnub.com/docs/general/setup/users-and-devices?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)です。 PubNubユーザーIDは、同じユーザーを識別するためにソリューションの他の場所で使用するIDと同じではないかもしれないので、'外部ID'フィールドでそれを追跡しておくことをお勧めします。
User Name、Email、Profile URLは説明の必要はありませんが、App Context内にこれらのフィールドを保持する利点は、ユーザーがこれらのフィールドのいずれかを変更した場合、当社のすべてのSDKでサポートされているApp Contextイベントを使用して、すべてのリスニングクライアントに変更をスケールで伝播できることを意味します。
### App ContextでUser representationを作成するには？
App Context Userを作成するには、2つの方法があります。
1. PubNubの管理ポータル内にある[BizOps Workspaceを](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)使用してユーザーを作成、管理できます。 これはコードを必要とせず、別記事で例を挙げてプロセスを説明しています：[BizOps Workspaceでユーザーとチャンネルを管理する方法](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)
2. ユーザを作成するためのAPIは各SDKを通じて公開されています。 例えば、チャット[SDKの](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)['createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)'メソッドは、JavaScriptの[setUUIDMetadataを呼び出して](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)ユーザーを作成します。 チャットSDK以外のSDKを使用している場合、App Contextデータを変更するための専用APIが提供されています。JavaScriptの[setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)APIについてはすでに触れましたが、[Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Unityなど](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、私たちのすべてのAPIに同等のものがあります。
チャンネルアプリのコンテキスト
---------------
PubNubはユーザーがチャンネルを購読または公開するたびに自動的にチャンネルを作成しますが、チャンネルはおそらくアプリケーションにとって意味のあるものを表しています。例えば、チャットアプリでは、通信にチャンネルを使用するグループチャットがあるかもしれませんし、ライブイベントでは投票を管理するために専用のチャンネルを使用するかもしれません。
チャネルに App Context を指定すると、そのチャネルに関連する任意のメタデータが保存・更新され、オプションでその更新がすべての関係クライアントに伝搬されます。 チャネルに 'ユーザ A とユーザ B のチャット' などの名前を付けることができ、チャネルがドキュメントの保存に関連している場合は、カスタムの 'URI' フィールドで追跡することができます。
### App Contextでチャネルを作成するには？
Usersと同様に、App Context Channelを作成するには2つの方法がある。
1. チャンネルは[BizOps Workspaceを使って](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)作成・管理できる。 これはコードを必要とせず、別記事で例を挙げてプロセスを説明している：[BizOps Workspaceでユーザーとチャネルを管理する方法](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)
2. チャネルを作成するためのAPIは、各SDKを通じて公開されています。 例えば、['Create](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)channel'メソッドのファミリーは、JavaScriptの[setChannelMetadata()](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)を呼び出します。 チャットSDK以外のSDKを使用している場合は、[JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Unityなど](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、アプリコンテキストデータを変更するための専用APIが提供されます。
メンバーシップApp Context
------------------
ユーザとチャネルの両方にApp Contextを定義したので、ユーザがチャネルの['メンバー'](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)であるかどうかを指定することで、2つの関係を定義することができます。
ユーザーがチャンネルに参加すると、同じチャンネルの他のメンバーに関するアップデートを受け取ることができる。ユーザーが`参加`したり`脱退したりした`ときや、そのユーザーのApp Contextが更新されたとき（例えば、ユーザーが自分の名前を更新したとき）にはいつでも通知を受け取ることができる。
これは、特にチャットアプリの開発者にとって、**多くの価値を提供する強力な**メカニズムです。 App Context を使用しない場合、すべてのユーザーを自分で追跡し、そのユーザーがどのチャネルのメンバーであるかを追跡し、そのユーザーが参加または退会したときに同じチャネルの他の全員に通知する必要があります。 この課題は直線的にスケールしないため、ソリューションのユーザーが増えれば増えるほど、この情報をすべて一元管理しようとするのは難しくなります。
App Contextを使用することで、チャットクライアントが内部状態を維持するために必要なすべての情報が提供され、PubNub[Access Managerで](https://www.pubnub.com/docs/general/security/access-control?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)そのデータを完全に制御して不正アクセスを防ぐことができます。
### メンバーシップの作成方法は？
ユーザーやチャンネルと同様に、メンバーシップを作成するには2つの方法があります。
1. メンバーシップは、[BizOpsワークス](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)ペースを使用してコードを記述することなく作成および管理できます。 詳細については、ドキュメントの「[メンバーシップの管理](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)」セクションを参照してください。
2. チャネルを作成するためのAPIは、各SDKを通じて公開されています。 例えば、['Create](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)channel'メソッドのファミリーは、JavaScriptの[setMembershipsを隠れて](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)呼び出します。 チャットSDK以外のSDKを使用している場合は、[JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Unityなどの](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)App Contextデータを変更するための専用APIが提供されます。
App Context変更時のリアルタイムイベントの受信
----------------------------
App Context データが変更されると、アプリケーションはリアルタイムで変更内容を通知するイベントを受け取ります。これにより、更新のためにサーバーをポーリングすることなく、応答性の高いアプリケーションを作成できます。
### PubNub SDK（チャットSDKを除く）によるApp Context変更の受信
すべてのPubNub SDKは "イベントリスナー "を公開しており、これらのリスナーを通じてApp Contextデータが変更されるたびに発生する`オブジェクト`イベントをリッスンすることができます。
[イベントエンジンとイベントリスナーのアップデートに関するこのブログで](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)説明されているように、執筆時点では、いくつかのSDKは「イベントリスナー」の新しいフォーマットをサポートしています。イベント・リスナーの形式にかかわらず、原則は同じです。あなたのアプリは、SDKが提供するリスナーを通じてアプリ・コンテキスト・イベントを受信するように登録する必要があります。
あなたのアプリは、SDKが提供するリスナーを通じてアプリコンテキストイベントを受信するように登録する必要があります。[JavaScript SDKのドキュメントに](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)詳述されているように、アプリコンテキストイベントの登録は以下のようになります：
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
他の言語でのApp Contextイベントの登録方法を説明したドキュメントは、以下の場所にあります： [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)（Pythonはイベントを「メタデータ」と呼び、他のSDKはイベントを「オブジェクト」と呼ぶことに注意）、[Unityなど](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)。
作業例とインタラクティブなデモについては、[BizOps Workspaceでユーザーとチャンネルを管理](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)する方法の記事を参照してください。
### PubNub Chat SDKでアプリのコンテキスト変更を受け取る
PubNub Chat SDKは[streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)APIファミリを通じてApp Contextイベントを公開します。
いくつかの例は、Web用の[チャットSDKデモアプリから](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web)抜粋したものです：
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
チャットSDKのよりシンプルな'getting stated'サンプルに基づく作業例については、[BizOps Workspaceでユーザーとチャネルを管理する](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)方法の記事を参照してください。
アプリコンテキストとPubNub Illuminate
---------------------------
[PubNub Illuminateは](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、組織独自のユースケースに合わせてカスタマイズ可能なリアルタイムの意思決定および分析製品です。 この製品は、プロダクトマネージャーやアナリストを念頭に置いて設計されており、以下のことが可能です：
- カスタム・リアルタイム集計メトリクスの定義
- 条件とアクションを伴う決定ルールの設定と展開。
- 追跡しているメトリクス、実行されたアクション、その結果を即座に可視化する。
エンジニアリングチームを進行中のプロジェクトから引き離すことなく、これらすべてをリアルタイムで実行できます。
PubNub Illuminteがどのようなもので、どのようにデータに対して即座に実行可能な洞察を提供できるのかについての詳しい説明はこの記事の範囲外ですが、詳細については[ドキュメントと](https://www.pubnub.com/docs/illuminate/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja) [製品](https://www.pubnub.com/blog/real-time-decisioning-with-illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)概要を参照してください。
要約すると、アプリケーションに関連する**メトリクス**、つまり測定したいものを定義します。 例えば、資産追跡のシナリオでは、注文が取られてからの時間数などです。 そのメトリクスに関連する何らかの[**条件が**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)満たされたとき、例えば「注文からの時間」がある値を超えたとき、何らかの**アクションを**取ることができます。
どの[アクションを](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)取るかは自由ですが、可能なアクションのうち3つはApp Contextに関するものです：
### PubNub Illuminateでユーザーを更新する
定義済みまたはカスタムのユーザーメタデータを設定できます。 下のスクリーンショットではID 123のユーザのステータスが静的な値「New Status」に設定されているが、**アクションの**トリガーとなった**条件に基づいて**動的な値を設定することも可能だ。
### PubNub Illuminateでチャンネルを更新する
定義済みまたはカスタムのチャンネルメタデータを設定できます。 下のスクリーンショットではID 123のチャンネルの名前が静的な値'New Name'に設定されていますが、**アクションの**トリガーとなった**条件に基づいて**動的な値を設定することも可能です。
### PubNub Illuminateでメンバーシップを更新する
定義済みまたはカスタムの会員メタデータを設定できます。 下のスクリーンショットはユーザID123のチャンネル123のメンバーシップのステータスが静的な値「New Status」に設定されていることを示しています。 **アクションを**トリガーした**条件に基づいて**動的な値を設定することも可能です。
アプリコンテキストとPubNub関数
------------------
PubNubはPubNubプラットフォームで発生しているイベントをキャプチャするためのFunctionsを提供します。Functionsを使用すると、コードを書いたり、既存の統合機能を活用して、データの変換、リルート、拡張、フィルタリング、さらには集計を行うことができます。 PubNub Functionsの詳細な概要については、[Functionsのドキュメントを](https://www.pubnub.com/docs/serverless/functions/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)参照してください。
### PubNub Functions内からApp Contextを更新する
Functionsが実行される環境は[PubNubモジュールに](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)アクセスできます。このモジュールはキーセットのApp Contextに完全にアクセスできます。ドキュメントから抜粋した例を以下に示します。 :
[Get User App Context Metadataの](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)例
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
[Set Channel App Context Metadataの](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)例
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
コード例の包括的なセットについては、[PubNubモジュールの](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)ドキュメントを参照してください。
### アプリコンテキストが変更されたときにPubNub関数をトリガーする
[Event Typesのドキュメント](https://www.pubnub.com/docs/serverless/functions/overview#event-types?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)で詳しく説明されているように、関数をトリガーできるイベントタイプは数多くあります。 これらには、メッセージやシグナルが送信されたときに検出する機能、プレゼンスイベントが発生した後に関数をトリガする機能、指定した間隔またはオンデマンドで関数を実行する機能などがあります。 この記事を書いている時点では、App Contextの更新後にFunctionを実行することは**できませんが**、アプリケーションがこれを必要とする場合は、[サポート](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)チームにご連絡ください。
次のステップ
------
App Context の動作を確認するには、App Context を当社の Chat SDK と一緒に使用して、サーバーレスストレージを使用したチャットアプリがどのように見えるかを示す[Chat Demo](https://www.pubnub.com/demos/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)をご覧ください。 Chat Demoでは、UserやChannelのメタデータを設定し、その変更が他のリスナーやメンバーにリアルタイムで反映される様子を見ることができます。
また、App Contextに依存するBizOpsワークスペースに関する関連する3つのパートからなるシリーズもご覧ください：[ユーザーとチャネルの管理](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[会話の監視とモデレート](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、[チャットの安全なモデレート](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)。
最後に、DevRelチーム[（devrel@pubnub.com](mailto:devrel@pubnub.com)）までお気軽にお問い合わせください。また、PubNubの開発に関するどのようなことでも[サポート](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)チームにお問い合わせください。
PubNubはどのようにお役に立ちますか？
=====================
この記事は[PubNub.comに](https://www.pubnub.com/how-to/use-app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)掲載されたものです。
私たちのプラットフォームは、開発者がWebアプリ、モバイルアプリ、およびIoTデバイスのためのリアルタイムのインタラクティブ性を構築、配信、管理するのに役立ちます。
私たちのプラットフォームの基盤は、業界最大かつ最もスケーラブルなリアルタイムエッジメッセージングネットワークです。世界15か所以上で8億人の月間アクティブユーザーをサポートし、99.999%の信頼性を誇るため、停電や同時実行数の制限、トラフィックの急増による遅延の問題を心配する必要はありません。
PubNubを体験
---------
[ライブツアーを](https://www.pubnub.com/tour/introduction/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)チェックして、5分以内にすべてのPubNub搭載アプリの背後にある本質的な概念を理解する
セットアップ
------
[PubNubアカウントに](https://admin.pubnub.com/signup/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)サインアップすると、PubNubキーに無料ですぐにアクセスできます。
始める
---
[PubNubのドキュメントは](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)、ユースケースや[SDKに](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ja)関係なく、あなたを立ち上げ、実行することができます。 | pubnubdevrel | |
1,916,873 | Setting Titles Dynamically with Next.js Metadata | Next.js has introduced a new App Router that provides more flexibility and structure to manage routes... | 0 | 2024-07-09T06:50:01 | https://dev.to/souhailxedits/setting-titles-dynamically-with-nextjs-metadata-4hog | nextjs, seo, web, learning | Next.js has introduced a new App Router that provides more flexibility and structure to manage routes and metadata. This new approach simplifies dynamic title setting and other metadata for your application. In this blog post, we'll explore how to set titles dynamically using the App Router in Next.js.
**Why Dynamic Titles Matter**
Dynamic titles enhance the user experience by providing relevant information for each page. They also improve SEO, making it easier for search engines to index your pages accurately. This is particularly important for content-heavy websites like blogs, e-commerce stores, and news sites where each page has unique content.
**Getting Started with the App Router**
-First, ensure you have a Next.js project set up with the App Router. If not, you can create one by running:
```
npx create-next-app@latest
```
-Navigate to your project directory:
```
cd your-nextjs-app
```
Ensure your Next.js version supports the App Router. The App Router is available from Next.js 12.1 onwards.
**Using Metadata in App Router**
Next.js App Router uses a special metadata property to handle the <head> tags, including the title. This method allows you to define metadata in your page components directly.
**1.Create Your App Layout:**
In the app directory, create a layout file (e.g., app/layout.js):
```
// app/layout.js
import './globals.css';
export const metadata = {
title: 'Default Title - My Next.js App',
description: 'Default description for my Next.js app',
};
export default function RootLayout({ children }) {
return (
<html lang="en">
<head />
<body>{children}</body>
</html>
);
}
```
**2.Set Dynamic Titles in Page Components:**
Each page component can override the default metadata by exporting a metadata object. Here's an example for a home page:
```
// app/page.js
export const metadata = {
title: 'Home Page - My Awesome Website',
description: 'Welcome to the home page of my awesome website',
};
export default function HomePage() {
return (
<div>
<h1>Welcome to My Awesome Website</h1>
</div>
);
}
```
**3.Dynamic Titles Based on Props:**
For more dynamic use cases, such as blog posts or product pages, you can set the title based on props. Here’s an example for a blog post page:
```
// app/posts/[id]/page.js
import { useRouter } from 'next/router';
export async function generateMetadata({ params }) {
const { id } = params;
const res = await fetch(`https://api.example.com/posts/${id}`);
const post = await res.json();
return {
title: `${post.title} - My Blog`,
description: post.summary,
};
}
export default function BlogPost({ params }) {
const { id } = params;
const [post, setPost] = React.useState(null);
React.useEffect(() => {
fetch(`https://api.example.com/posts/${id}`)
.then((response) => response.json())
.then((data) => setPost(data));
}, [id]);
if (!post) return <div>Loading...</div>;
return (
<div>
<h1>{post.title}</h1>
<p>{post.content}</p>
</div>
);
}
```
**Advanced Metadata Handling**
For more complex scenarios, you might want to set metadata dynamically at a global level or use custom hooks. The following example demonstrates a custom hook for managing metadata:
**1.Create a Custom Hook:**
```
// hooks/useMetadata.js
import { useEffect } from 'react';
import { useRouter } from 'next/router';
const useMetadata = (title, description) => {
const router = useRouter();
useEffect(() => {
document.title = title;
const metaDescription = document.querySelector('meta[name="description"]');
if (metaDescription) {
metaDescription.setAttribute('content', description);
} else {
const meta = document.createElement('meta');
meta.name = 'description';
meta.content = description;
document.head.appendChild(meta);
}
}, [title, description, router.pathname]);
};
export default useMetadata;
```
**2.Use the Hook in a Component:**
```
// app/page.js
import useMetadata from '../hooks/useMetadata';
export default function HomePage() {
useMetadata('Home Page - My Awesome Website', 'Welcome to the home page of my awesome website');
return (
<div>
<h1>Welcome to My Awesome Website</h1>
</div>
);
}
```
**Conclusion**
Setting dynamic titles and metadata in Next.js using the App Router is straightforward and powerful. By leveraging the metadata property and custom hooks, you can ensure that each page in your application has the correct metadata, improving both SEO and user experience. Experiment with different strategies to see what works best for your use case, and remember that thoughtful metadata can significantly impact your site's visibility and user engagement.
Happy coding!
| souhailxedits |
1,916,874 | JEST: DeepMind’s JEST: DeepMind’s Breakthrough for AI Training Efficiency | The pursuit of artificial intelligence (AI) has led to groundbreaking advancements, but it has also... | 0 | 2024-07-09T06:53:03 | https://dev.to/hyscaler/jest-deepminds-jest-deepminds-breakthrough-for-ai-training-efficiency-33pe | deepmind, aitraining, jest, webdev | The pursuit of artificial intelligence (AI) has led to groundbreaking advancements, but it has also brought to light a critical challenge: the immense computational resources required for AI training. Training state-of-the-art AI models is an energy-intensive process that places a significant burden on the environment and economy. As AI models continue to grow in complexity, the demand for computational power is escalating rapidly, raising concerns about sustainability and accessibility.
## A Promising Solution for AI Training Efficiency
In a bid to address these challenges, Google DeepMind has unveiled a groundbreaking new technique called Joint Example Selection (JEST). JEST represents a significant leap forward in AI training efficiency, promising to dramatically accelerate training speeds while drastically reducing energy consumption. This innovation has the potential to reshape the AI landscape and mitigate the environmental impact of AI development.
## How JEST Works
JEST diverges from traditional AI training methods by focusing on entire batches of data rather than individual data points. This approach enables more efficient utilization of computational resources and accelerates the training process. JEST employs a two-tiered strategy:
**Data Quality Assessment**: A smaller AI model is responsible for evaluating the quality of different data batches. This model acts as a discerning curator, ranking batches based on their potential contribution to the training process.
**Efficient Training**: The highest-quality batches, as identified by the smaller model, are then fed into a larger model for training. By concentrating on the most valuable data, JEST maximizes training efficiency and minimizes computational waste.
## The Importance of High-Quality Data for AI Training Efficiency
DeepMind emphasizes the crucial role of high-quality training data in the success of the JEST method. By carefully selecting and prioritizing data, JEST can significantly reduce the number of training iterations required, leading to substantial time and energy savings. The researchers claim that JEST surpasses existing state-of-the-art models by up to 13 times in terms of training iterations and 10 times in computational efficiency.
## The Environmental and Economic Impact of AI Training Efficiency
The environmental impact of AI training has become a pressing concern. Data centers powering AI workloads consumed a staggering 4.3 gigawatts of electricity in 2023, equivalent to the annual energy consumption of a small country. This figure is projected to skyrocket as AI models become more complex.
Moreover, the economic costs of AI training are staggering. Training large-scale AI models can cost hundreds of millions of dollars, making AI development prohibitively expensive for many organizations.
## JEST’s Potential to Transform AI Training Efficiency
JEST offers a promising solution to both the environmental and economic challenges of AI training. By drastically reducing computational requirements, it could pave the way for more sustainable and affordable AI development. However, the extent to which it will be adopted by industry giants remains to be seen.
Read full blog by click in this link - https://hyscaler.com/insights/jest-deepmind-breakthrough-for-ai-training/
| amulyakumar |
1,916,875 | Architect and Build an End-to-End AWS Web Application | Introduction: Architect and build an end-to-end AWS web application with AWS Amplify for... | 0 | 2024-07-09T07:56:13 | https://dev.to/kousalya_s_1e656b83b89b93/architect-and-build-an-end-to-end-aws-web-application-13ib | ## Introduction:
Architect and build an end-to-end AWS web application with AWS Amplify for seamless front-end hosting, AWS Lambda for serverless functions, Amazon API Gateway for managing APIs, Amazon DynamoDB for scalable NoSQL databases, and IAM roles for secure access management. This integration ensures a robust, scalable, and secure application infrastructure.
## AWS Services used in this tutorial
Amplify
Amazon API Gateway
AWS Lambda
AWS IAM
Amazon DynamoDB
## Prerequisites
1. - An AWS account
2. - A basic understanding of AWS.
3. - A text or code editor. I am using VSCode.
4. - A basic understanding of HTML, CSS and JavaScript is recommended but not necessary.
## Architecture Diagram
## Step 1: Create an index.html file
Go on and create an index.html file in any folder of your choice and add the following code to it using a text editor.
```
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600&display=swap"
rel="stylesheet"
/>
<title>Exponential Math ⚡️</title>
<!-- Styling for the web page -->
<style>
h1 {
color: #fff;
text-align: center;
text-transform: uppercase;
font-size: 50px;
font-weight: 600;
}
body {
background-color: #34495e;
font-family: 'Rajdhani', sans-serif;
display: flex;
justify-content: center;
align-items: center;
position: relative;
}
label {
color: #ffa801;
font-size: 25px;
margin-top: 20px;
}
label:last-of-type {
margin-left: 20px;
}
button {
background-color: #05c46b;
border: none;
color: #fff;
font-size: 20px;
font-weight: bold;
margin-left: 30px;
margin-top: 20px;
padding: 10px 20px;
font-family: 'Rajdhani', sans-serif;
cursor: pointer;
}
input {
color: #222629;
border: none;
font-size: 20px;
margin-left: 10px;
margin-top: 20px;
padding: 10px 20px;
max-width: 150px;
outline-color: #05c46b;
}
div {
width: auto;
position: absolute;
top: 35vh;
}
</style>
<script>
// callAPI function that takes the base and exponent numbers as parameters
var callAPI = (base, exponent) => {
// instantiate a headers object
var myHeaders = new Headers();
// add content type header to object
myHeaders.append("Content-Type", "application/json");
// using built in JSON utility package turn object to string and store in a variable
var raw = JSON.stringify({ base: base, exponent: exponent });
// create a JSON object with parameters for API call and store in a variable
var requestOptions = {
method: "POST",
headers: myHeaders,
body: raw,
redirect: "follow",
};
// make API call with parameters and use promises to get response
fetch("YOUR_API_GATEWAY_ENDPOINT", requestOptions)
.then((response) => response.text())
.then((result) => alert(JSON.parse(result).body))
.catch((error) => console.log("error", error));
};
</script>
</head>
<body>
<div>
<h1>Exponential Math ⚡️</h1>
<form>
<label>Base number:</label>
<input type="number" id="base" />
<label>to the power</label>
<input type="number" id="exponent" />
<!-- set button onClick method to call function we defined passing input values as parameters -->
<button
type="button"
onclick="callAPI(document.getElementById('base').value,document.getElementById('exponent').value)"
>
CALCULATE
</button>
</form>
</div>
</body>
</html>
```
This code constitutes our web page i.e. the frontend of our application which we are going to deploy to AWS Amplify.
That’s how our final webpage looks. You can play around with the colours to change the look and feel of the webpage. Now, compress your index.html file i.e. make it a zip file. We are going to use this zip file in the next step.
## Step 2: Deploying our web app on Amplify
We are using Amplify for this step.AWS Amplify is a set of tools and services for building scalable mobile and web applications, providing backend services, front-end libraries, and hosting solutions with a focus on ease of use.
Login into the AWS management console and search for Amplify in the management console. Once you have searched for and navigated to AWS Amplify.
1.Click on the Get Started button(will take you to another page where you choose the source of your code i.e. where Amplify is going to get the code you want to deploy from.)
2.Select the “Deploy without Git provider”.(Since the application code we want to host is not on any Git provider and Clicking on the Continue button takes you to the page)
3.Type out the name you’ll like to give your app. I named my app ExponentialMath.
4.In the Environment name input box, write dev Now drag and drop your index.zip file into the area.
5.Next click on the save and deploy button.
If the deployment was successful, the resulting page will be similar to the one in the image shown above. Clicking the URL that’s on that page will open our webpage.
## Step 3: Working on our application logic
We are going to use AWS Lambda for this step.AWS Lambda is a serverless computing service that runs code in response to events, automatically managing the underlying infrastructure, allowing you to focus solely on code without provisioning servers.
Using Lambda, we are going to write some Python code using the Python Math library to carry out the calculations feature of our application.
Click on the Create a function button as shown in the image above. On the resulting page select Author from scratch, input a name for your function (as you can see in the image below, I called my lambda function ExponentialMathFunction ). Now select the runtime for the function. As pointed out earlier, we are using Python so select the Python runtime.
On the resulting page, replace the code in the lambda_function.py file with the code below, use Ctrl + S to save it and then click on the Deploy button to deploy the function.
```
# import the JSON utility package
import json
# import the Python math library
import math
# define the handler function that the Lambda service will use an entry point
def lambda_handler(event, context):
# extract the two numbers from the Lambda service's event object
mathResult = math.pow(int(event['base']), int(event['exponent']))
# return a properly formatted JSON object
return {
'statusCode': 200,
'body': json.dumps('Your result is ' + str(mathResult))
}
```
What the code does is, it imports the JSON utility package and the Python Math library which will enable us to do our calculations.
Now that our lambda function is deployed, let’s configure a test event and test it to see if it is working
Replaced the JSON code shown in the image above with the code below and click on the Save button.
```
{
"base": 3,
"exponent": 2
}
```
Now that our test event is configured and saved, we can run a test. So click on the blue Test button to run a test for our lambda function.
As you can see in the image above, our test has returned a response with a status code of 200 (which means that the test was successful) and a response body which says our result is 9. This means our function is working just fine. Let’s move on to the fourth step.
## Step 4: Make it possible to invoke the lambda function we created
After having created a lambda function that will perform our calculations, we need to make it possible for our hosted web application to be able to invoke it when needed.Amazon API Gateway is a managed service that allows developers to create, publish, maintain, monitor, and secure APIs at any scale, enabling backend services for web, mobile, and serverless applications.
1. Open a new management console window in a new tab, search for and navigate to API Gateway.
2. Click on the Create API button.
3. Scroll down to the REST API section and click on the Build button.
4. Add a name for your API click on the Create API button.(make sure you are in the Resources tab.)
5. Make sure you have the forward slash selected as indicated.
6. Select the Create Method option.
7. Select POST and then click on the check icon that appears next to it. The reason we are selecting POST is that our application submits numbers for a calculation to be performed.
8. Since we are using a lambda function for our application logic, select Lambda Function as the Integration type, input the name of our lambda function in the appropriate input box and then click on the Save button. On the dialogue box that appears after clicking Save, click OK to permit API Gateway to invoke the lambda function.
9.The next thing we have to do is enable CORS (Cross Origin Resource Sharing). What CORS does is that it allows resources on one domain to access resources on another domain. Click the Actions button and select Enable CORS. Make sure you have selected POST sitting directly below the forward slash before you select Enable CORS
10.let’s deploy the API so we can be able to test it.
Copy your Invoke URL and keep it safe somewhere because we are going to use it later on. Now go back to the resource tab and click on POST to see a flow of how the API works. click on the Test .
## Step 5: Configure a database where we will store all the results of our calculations.
We are going to use DynamoDB to achieve our objective. Our application doesn’t necessarily need to store the results of calculations in a database. This step is added just to show you have you can store application data in a database. DynamoDB is a managed NoSQL database service that provides fast performance with seamless scalability. In DynamoDB, data is stored in key-value pairs.
Click on Create table
Fill in the necessary details as indicated in the image above and click on Create table This creates a new DynamoDB table for us. Click on the table name to open it.
copy and keep the ARN of your database table somewhere safe as we are going to use it soon.
## Step 6: Grant our lambda function permission to write results to DynamoDB
we are going to leverage the IAM roles feature of AWS IAM. IAM is a service provided by AWS that allows you to manage access to your AWS resources. An IAM role is a set of permissions that you can temporarily assign to an entity or an AWS service.
Go back to the browser tab where you have AWS Lambda open.
Click on the Role name highlighted in the image. This will open IAM in a new tab.
Click on the Add permissions dropdown button and select Create inline policy as shown in the image above.
Make sure you are in the JSON tab and replace the JSON policy with the code below. Make sure you replace "YOUR-TABLE-ARN" with the actual table ARN you copied earlier. Once you are done, click on the Next button.
```
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "LambdaFunctionExecutionPolicy",
"Effect": "Allow",
"Action": [
"dynamodb:PutItem",
"dynamodb:DeleteItem",
"dynamodb:GetItem",
"dynamodb:Scan",
"dynamodb:Query",
"dynamodb:UpdateItem"
],
"Resource": "YOUR-TABLE-ARN"
}
]
}
```
What this policy does is it allows our lambda function to perform various actions on our DynamoDB table.
Input a policy name as indicated in the image above and then click on the Create policy button to create the policy.
Now that we have successfully made it possible for our lambda function to perform various actions on our DynamoDB table, let’s update our lambda function. Copy the code below and use it as a replacement for the current code in the lambda_function.py file found in the code tab of our lambda management console window and then use Ctrl + S to save the file.
```
# import the JSON utility package
import json
# import the Python math library
import math
# import the AWS SDK (for Python the package name is boto3)
import boto3
# import two packages to help us with dates and date formatting
from time import gmtime, strftime
# create a DynamoDB object using the AWS SDK
dynamodb = boto3.resource('dynamodb')
# use the DynamoDB object to select our table
table = dynamodb.Table('ExponentialMathDatabase')
# store the current time in a human readable format in a variable
now = strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())
# define the handler function that the Lambda service will use an entry point
def lambda_handler(event, context):
# extract the two numbers from the Lambda service's event object
mathResult = math.pow(int(event['base']), int(event['exponent']))
# write result and time to the DynamoDB table using the object we instantiated and save response in a variable
response = table.put_item(
Item={
'ID': str(mathResult),
'LatestGreetingTime':now
})
# return a properly formatted JSON object
return {
'statusCode': 200,
'body': json.dumps('Your result is ' + str(mathResult))
}
```
After updating and saving the code, make sure you deploy it by clicking on the Deploy button. Now click on Test, go back to the DynamoDB tab and open up our database table.
Click on the Explore table items button to see if the results of the test were stored successfully.
the results were stored successfully.
## Step 7: Make it possible for our front-end to be able to hit the API Gateway Endpoint.
We are getting close to the finish line!! As of this point, we can perform calculations by inputting numbers and using the CALCULATE button on our webpage because we can't invoke our calculations lambda function from the webpage. To make this possible, we have to connect our webpage to API Gateway using the API Gateway endpoint we copied earlier.
```
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600&display=swap"
rel="stylesheet"
/>
<title>Exponential Math ⚡️</title>
<!-- Styling for the web page -->
<style>
h1 {
color: #fff;
text-align: center;
text-transform: uppercase;
font-size: 50px;
font-weight: 600;
}
body {
background-color: #34495e;
font-family: 'Rajdhani', sans-serif;
display: flex;
justify-content: center;
align-items: center;
position: relative;
}
label {
color: #ffa801;
font-size: 25px;
margin-top: 20px;
}
label:last-of-type {
margin-left: 20px;
}
button {
background-color: #05c46b;
border: none;
color: #fff;
font-size: 20px;
font-weight: bold;
margin-left: 30px;
margin-top: 20px;
padding: 10px 20px;
font-family: 'Rajdhani', sans-serif;
cursor: pointer;
}
input {
color: #222629;
border: none;
font-size: 20px;
margin-left: 10px;
margin-top: 20px;
padding: 10px 20px;
max-width: 150px;
outline-color: #05c46b;
}
div {
width: auto;
position: absolute;
top: 35vh;
}
</style>
<script>
// callAPI function that takes the base and exponent numbers as parameters
var callAPI = (base, exponent) => {
// instantiate a headers object
var myHeaders = new Headers();
// add content type header to object
myHeaders.append("Content-Type", "application/json");
// using built in JSON utility package turn object to string and store in a variable
var raw = JSON.stringify({ base: base, exponent: exponent });
// create a JSON object with parameters for API call and store in a variable
var requestOptions = {
method: "POST",
headers: myHeaders,
body: raw,
redirect: "follow",
};
// make API call with parameters and use promises to get response
fetch("YOUR_API_GATEWAY_ENDPOINT", requestOptions)
.then((response) => response.text())
.then((result) => alert(JSON.parse(result).body))
.catch((error) => console.log("error", error));
};
</script>
</head>
<body>
<div>
<h1>Exponential Math ⚡️</h1>
<form>
<label>Base number:</label>
<input type="number" id="base" />
<label>to the power</label>
<input type="number" id="exponent" />
<!-- set button onClick method to call function we defined passing input values as parameters -->
<button
type="button"
onclick="callAPI(document.getElementById('base').value,document.getElementById('exponent').value)"
>
CALCULATE
</button>
</form>
</div>
</body>
</html>
```
Replace YOUR_API_GATEWAY_ENDPOINT with the API Gateway endpoint you copied earlier. Save your changes, delete the old index.zip and create a new one by zipping the updated index.html Go back to the AWS Amplify management console window.
Drag and drop your index.zip file here so that our application can be redeployed. Now open the link to our webpage hosted on Amplify, input some numbers and click CALCULATE to perform some calculations. Our webpage will call API Gateway which then triggers our lambda function to perform calculations and store the results of the calculations in our DynamoDB table.
Congratulations!!!You have successfully built an end-to-end, simple web application on AWS.
## Conclusion
Congratulations on completing this step-by-step tutorial on building a simple end-to-end web application using Amplify, AWS Lambda, API Gateway, IAM, and DynamoDB
| kousalya_s_1e656b83b89b93 | |
1,916,881 | Verwendung von App Context | PubNub App Context ist ein einfach zu bedienender, serverloser Speicher für Benutzer-, Kanal- und Mitgliedschaftsinformationen | 0 | 2024-07-09T06:59:33 | https://dev.to/pubnub-de/verwendung-von-app-context-2556 | PubNub [App Context](https://www.pubnub.com/products/app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) vereinfacht die Entwicklung komplexer Echtzeitfunktionen, indem es einen serverlosen Speichermechanismus für Benutzer-, Kanal- und Mitgliedschaftsinformationen bereitstellt. App Context löst Ereignisse aus, sobald sich die Daten ändern, so dass Ihre Anwendungen in Echtzeit aktualisiert werden können. Die gespeicherten Daten können in [Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Funktionen](https://www.pubnub.com/products/functions/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) und anderen PubNub-Diensten verwendet werden, um intelligentere Entscheidungen zu treffen. Sie können diese Daten auch über eine intuitive, codefreie Schnittstelle mit [BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) verwalten.
Was ist App Context?
--------------------
[App Context](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) (früher bekannt als Objects) ermöglicht es Ihnen:
- den Benutzern und Kanälen in Ihrer Anwendung und den Beziehungen zwischen ihnen eine Bedeutung zu geben.
- Speichern von Metadaten für alle Ihre Entitäten auf dem Server, was die Bereitstellung einer globalen Wahrheitsquelle für Ihre Clients vereinfacht. Beachten Sie, dass ein Benutzer nicht unbedingt ein menschliches Wesen darstellen muss, und dass es üblich ist, stattdessen den Gerätestatus im Benutzerobjekt zu speichern.
- Empfangen Sie sofortige Echtzeit-Ereignisse, wenn sich die Werte eines Objekts ändern.
Obwohl jede Anwendung App Context verwenden kann, ist es besonders bei Entwicklern beliebt, die [Chat-Lösungen](https://www.pubnub.com/solutions/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) erstellen.
App Context bietet eine Reihe von vorgeschlagenen Feldern für Ihre [Benutzer](https://www.pubnub.com/docs/general/metadata/users-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) und [Channels](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) sowie vorgeschlagene Felder für die [Mitgliedschaften](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) zwischen ihnen. Die meisten dieser Felder sind optional, so dass Sie auswählen können, welche Felder Sie ausfüllen, und auch Ihre eigenen benutzerdefinierten Felder bereitstellen können.
App Context Anwendungsfälle
---------------------------
Wie bereits erwähnt, ist App Context besonders bei Entwicklern beliebt, die Chat-Lösungen erstellen, aber es kann in einer Vielzahl von Anwendungsfällen eingesetzt werden:
- **Chat:** Speichern Sie Benutzerinformationen (Name, Profilfoto, Urlaubsstatus, Berufsbezeichnung), Kanalinformationen (Symbol, Beschreibung, Zielgruppe), Benutzerrollen und verfolgen Sie die zuletzt gelesene Nachricht pro Kanal und Benutzer.
- **Sport, Medien und Unterhaltung:** Live-Abstimmungen und -Umfragen, Live-Quiz, Echtzeitgebote, CTA-Overlays (Call-to-Action) für Waren oder Werbeaktionen.
- **Spiele:** Spielerstatistiken in Echtzeit, einschließlich Spielerlevel, gewonnene Spiele, Abzeichen; Verfolgung und Verwaltung von Ranglisten
- **Mehr:** Abwesenheits-/Aktivitätsstatus des Nutzers, Vertrauenswürdigkeit des Nutzers für die Betrugserkennung, Verfolgung des Nutzerstandorts, IoT-Gerätestatus wie Batteriestand oder letzter Sensorwert
Aktivieren von App Context
--------------------------
App Context kann wie folgt aktiviert werden:
1. Loggen Sie sich in das [Admin Portal](https://admin.pubnub.com/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) ein
2. Klicken Sie auf die Registerkarte "Apps" auf der linken Seite des Portals
3. Klicken Sie auf eine Anwendung. Sie werden auf die Seite mit den Schlüsselsätzen für diese Anwendung weitergeleitet.
4. Wenn Sie dies noch nicht getan haben, erstellen Sie ein neues Keyset, indem Sie auf die Schaltfläche "Neues Keyset erstellen" klicken. Sie gelangen dann zur Konfigurationsseite für dieses Keyset
5. Aktivieren Sie App Context, indem Sie auf den Schieberegler klicken.
6. Die Einstellung " **Bucket Region"** ist die Region, in der Ihre Daten gespeichert werden. Bitte beachten Sie, dass die Region nach dem Speichern der Änderungen am Keyset nicht mehr geändert werden kann.
7. Wenn die Einstellungen **Benutzer-Metadaten-Ereignisse** und **Channel-Metadaten-Ereignisse** aktiviert sind, werden die Benutzer- und Channel-Ereignisse ausgelöst, wenn Daten in der Datenbank festgelegt oder entfernt werden, wie später beschrieben.
8. Wenn die Einstellung **Mitgliedschaftsereignisse** aktiviert ist, werden Mitgliedschaftsereignisse ausgelöst, wenn Mitgliedschaften hinzugefügt, aktualisiert oder entfernt werden (siehe unten).
9. Die übrigen Optionen werden in diesem Artikel nicht behandelt, aber weitere Informationen finden Sie in der [App Context-Dokumentation](https://www.pubnub.com/docs/general/metadata/basics#configuration?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
10. Klicken Sie auf **Änderungen speichern**, um diese aktualisierten Änderungen zu speichern.
Benutzer-App-Kontext
--------------------
Wenn ein neuer Benutzer in Ihre Anwendung aufgenommen wird, z.B. über einen externen Identitätsanbieter, müssen Sie eine Möglichkeit haben, diesen Benutzer gegenüber PubNub eindeutig zu identifizieren; dies ist die [Benutzer-ID](https://www.pubnub.com/docs/general/setup/users-and-devices?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), die der Client Ihres Benutzers zur Initialisierung des PubNub SDK verwendet. Die PubNub-Benutzer-ID ist möglicherweise nicht dieselbe wie die ID, die Sie an anderer Stelle in Ihrer Lösung zur Identifizierung desselben Benutzers verwenden, daher empfehlen wir, dies im Feld "Externe ID" festzuhalten.
Benutzername, E-Mail und Profil-URL bedürfen keiner Erläuterung, aber der Vorteil, diese innerhalb von App Context zu halten, bedeutet, dass, wenn ein Benutzer eines dieser Felder ändert, die Änderungen in großem Umfang an alle zuhörenden Clients weitergegeben werden können, indem App Context-Ereignisse verwendet werden, die von allen unseren SDKs unterstützt werden.
### Wie erstelle ich eine Benutzerdarstellung in App Context?
Es gibt zwei Möglichkeiten, einen App Context-Benutzer zu erstellen.
1. Benutzer können über den [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) im PubNub-Administrationsportal erstellt und verwaltet werden. Dies erfordert keinen Code und der Prozess wird mit Beispielen in einem separaten Artikel erklärt: [Verwalten von Benutzern und Channels mit BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
2. Jedes unserer SDKs stellt APIs zur Verfügung, um Benutzer zu erstellen. Wenn Sie unser [Chat-SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) verwenden, verwaltet dieses SDK den Anwendungskontext für Sie hinter den Kulissen; zum Beispiel ruft die Chat-SDK-Methode[createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)" im Verborgenen die JavaScript-Methode [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) auf, um einen Benutzer zu erstellen. Wenn Sie ein anderes SDK als das Chat-SDK verwenden, stehen spezielle APIs zur Verfügung, um Ihre App-Kontextdaten zu ändern. Ich habe bereits die JavaScript [setUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) API erwähnt, aber es gibt Äquivalente für alle unsere APIs, einschließlich [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), etc.
Kanal-App-Kontext
-----------------
PubNub erstellt automatisch Channels, wenn ein Benutzer sie abonniert oder veröffentlicht, aber Channels repräsentieren wahrscheinlich etwas, das für Ihre Anwendung von Bedeutung ist, z. B. könnten Sie in einer Chat-App einen Gruppen-Chat haben, der einen Channel zur Kommunikation verwendet, oder ein Live-Event könnte einen dedizierten Channel zur Verwaltung von Umfragen verwenden.
Wenn Sie App Context für einen Kanal angeben, werden alle gewünschten Metadaten zu diesem Kanal gespeichert und aktualisiert, wobei diese Aktualisierungen optional an alle interessierten Clients weitergegeben werden. Sie könnten einem Kanal einen Namen geben, z. B. "Chat zwischen Benutzer A und Benutzer B", und vielleicht ist der Kanal mit einer Dokumentenspeicherung verbunden, die in einem benutzerdefinierten "URI"-Feld verfolgt werden könnte.
### Wie erstelle ich eine Channel-Darstellung in App Context?
Ähnlich wie bei Benutzern gibt es zwei Möglichkeiten, einen App Context Channel zu erstellen.
1. Channels können mit [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) erstellt und verwaltet werden. Dazu ist kein Code erforderlich, und der Prozess wird mit Beispielen in einem separaten Artikel erläutert: [Verwalten von Benutzern und Channels mit BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
2. Jedes unserer SDKs stellt APIs zur Verfügung, um Channels zu erstellen. Wenn Sie unser [Chat-SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) verwenden, wird der Anwendungskontext für Sie hinter den Kulissen gehandhabt; zum Beispiel ruft die Familie der["](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) Kanal[erstellen](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) "-Methoden im Verborgenen die JavaScript-Funktion [setChannelMetadata()](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) auf. Wenn Sie ein anderes SDK als das Chat-SDK verwenden, stehen Ihnen spezielle APIs zur Verfügung, um Ihre App-Kontextdaten zu ändern, einschließlich [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) usw.
App-Kontext für die Mitgliedschaft
----------------------------------
Nachdem wir App Context sowohl für unsere Benutzer als auch für unsere Channels definiert haben, können wir nun die Beziehung zwischen den beiden definieren, indem wir angeben, ob Benutzer ["Mitglieder"](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) eines Channels sind.
Wenn ein Benutzer einem Channel beitritt, kann er Aktualisierungen über jedes andere Mitglied desselben Channels erhalten; er kann benachrichtigt werden, wenn ein Benutzer `beitritt` oder `austritt` und wenn der App Context dieses Benutzers aktualisiert wird (z. B. wenn er seinen Namen aktualisiert).
**Dies ist ein täuschend mächtiger Mechanismus, der** vor allem für Entwickler von Chat-Apps von**großem Nutzen** ist. Wenn Sie App Context nicht verwenden würden, müssten Sie jeden Benutzer selbst verfolgen, in welchen Kanälen er Mitglied ist, und alle anderen im selben Kanal benachrichtigen, wenn dieser Benutzer beitritt oder austritt. Diese Herausforderung lässt sich nicht linear skalieren, d. h. je mehr Benutzer Sie in Ihrer Lösung haben, desto schwieriger wird es für Sie, all diese Informationen zentral zu verwalten.
Durch die Verwendung von App Context werden Ihren Chat-Clients alle Informationen zur Verfügung gestellt, die sie zur Aufrechterhaltung ihres internen Status benötigen, und Sie haben mit dem PubNub [Access Manager](https://www.pubnub.com/docs/general/security/access-control?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) die volle Kontrolle über diese Daten, um unbefugten Zugriff zu verhindern.
### Wie kann ich eine Mitgliedschaft erstellen?
Ähnlich wie bei Benutzern und Channels gibt es zwei Möglichkeiten, eine Mitgliedschaft zu erstellen.
1. Mitgliedschaften können mit [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) erstellt und verwaltet werden, ohne Code zu schreiben. Weitere Einzelheiten finden Sie im Abschnitt [Mitgliedschaft verwalten](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) in unserer Dokumentation.
2. Über jedes unserer SDKs werden APIs zum Erstellen von Channels bereitgestellt. Wenn Sie unser [Chat-SDK](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) verwenden, wird der Anwendungskontext für Sie hinter den Kulissen gehandhabt; beispielsweise ruft die Familie der["](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) Channel[erstellen](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) "-Methoden im Verborgenen die JavaScript-Funktion [setMemberships](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) auf. Wenn Sie ein anderes SDK als das Chat-SDK verwenden, werden dedizierte APIs bereitgestellt, um Ihre App-Kontextdaten zu ändern, einschließlich [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) usw.
Empfangen von Echtzeit-Ereignissen bei App-Kontextänderungen
------------------------------------------------------------
Wenn sich App Context-Daten ändern, erhält Ihre Anwendung ein Ereignis, das Sie in Echtzeit über die Änderungen informiert.
### Empfangen von App Context Änderungen durch das PubNub SDK (außer Chat SDK)
Alle PubNub SDKs stellen "Event Listener" zur Verfügung. Über diese Listener können Sie auf `Objekt-Ereignisse` hören, die immer dann ausgelöst werden, wenn sich App Context-Daten ändern.
Beachten Sie, dass es hier eine kleine Nuance gibt, dass zum Zeitpunkt des Schreibens einige unserer SDKs ein neues Format für "Event Listener" unterstützen, wie in [diesem Blog über Updates der Event Engine und Event Listener](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) erklärt. Unabhängig vom Format des Ereignis-Listeners bleibt das Prinzip dasselbe: Ihre Anwendung sollte sich registrieren, um App-Kontext-Ereignisse über einen vom SDK bereitgestellten Listener zu empfangen.
Wie in der [JavaScript-SDK-Dokumentation](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) beschrieben, sieht die Registrierung für App Context-Ereignisse wie folgt aus:
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
Dokumentation, die beschreibt, wie man sich für App Context-Ereignisse in anderen Sprachen registriert, finden Sie an den folgenden Stellen: [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) (beachten Sie, dass Python die Ereignisse als "Metadaten" bezeichnet, während andere SDKs die Ereignisse als "Objekte" bezeichnen), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), usw.
Ein praktisches Beispiel und eine interaktive Demo finden Sie in dem Artikel [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
### Empfangen von App-Kontextänderungen über das PubNub Chat SDK
Das PubNub Chat SDK stellt App Context Events durch die Familie der [streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) APIs zur Verfügung.
Einige Beispiele, entnommen aus der [Chat SDK Demo-App](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web) für das Web:
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
Für ein Beispiel, das auf unserem einfacheren Beispiel für das Chat SDK basiert, lesen Sie bitte den Artikel [How to Manage Users and Channels with BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
Anwendungskontext und PubNub Illuminate
---------------------------------------
[PubNub Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) ist ein Echtzeit-Entscheidungs- und -Analyseprodukt, das an den jeweiligen Anwendungsfall einer Organisation angepasst werden kann. Das Produkt wurde mit Blick auf Produktmanager und Analysten entwickelt und ermöglicht ihnen Folgendes:
- Definieren von benutzerdefinierten aggregierten Echtzeit-Metriken.
- Einrichten und Bereitstellen von Entscheidungsregeln mit Bedingungen und Aktionen.
- Sofortige Visualisierung der von Ihnen verfolgten Metriken, der ausgeführten Aktionen und ihrer Ergebnisse.
Sie können all dies in Echtzeit tun, ohne dass Ihr Entwicklungsteam von seinen laufenden Projekten abgezogen werden muss.
Eine vollständige Erklärung, was PubNub Illuminte ist und wie es Ihnen sofort verwertbare Einblicke in Ihre Daten geben kann, würde den Rahmen dieses Artikels sprengen.
Kurz gesagt: Sie definieren **Metriken**, die sich auf Ihre Anwendung beziehen, d. h. Dinge, die Sie messen möchten. In einem Asset-Tracking-Szenario könnten dies zum Beispiel die Stunden seit der Auftragsannahme sein. Wenn eine [**Bedingung**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) in Bezug auf diese Metrik erfüllt ist, z. B. wenn die "Stunden seit der Bestellung" einen bestimmten Wert überschreiten, können Sie eine **Aktion** durchführen.
Welche [Aktion](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) Sie ergreifen, ist flexibel, aber drei der möglichen Aktionen beziehen sich auf den App-Kontext:
### Benutzer mit PubNub Illuminate aktualisieren
Ermöglicht es Ihnen, vordefinierte oder benutzerdefinierte Benutzer-Metadaten festzulegen. Der Screenshot unten zeigt, dass der Status des Benutzers mit der ID 123 auf den statischen Wert "New Status" gesetzt wurde, aber es ist auch möglich, einen dynamischen Wert basierend auf der **Bedingung**, die die **Aktion** ausgelöst hat, zu setzen.
### Channel aktualisieren mit PubNub Illuminate
Ermöglicht es Ihnen, beliebige vordefinierte oder benutzerdefinierte Channel-Metadaten zu setzen. Der Screenshot unten zeigt, dass der Name des Channels mit der ID 123 auf den statischen Wert "New Name" gesetzt wurde, aber es ist auch möglich, einen dynamischen Wert auf der Grundlage der **Bedingung** zu setzen, die die **Aktion** ausgelöst hat.
### Aktualisieren von Mitgliedschaften mit PubNub Illuminate
Ermöglicht es Ihnen, vordefinierte oder benutzerdefinierte Metadaten für die Mitgliedschaft zu setzen. Der Screenshot unten zeigt die Mitgliedschaft von User ID 123 im Channel 123, dessen Status auf den statischen Wert "New Status" gesetzt wurde. Es ist auch möglich, einen dynamischen Wert zu setzen, der auf der **Bedingung** basiert, die die **Aktion** ausgelöst hat.
App-Kontext und PubNub-Funktionen
---------------------------------
PubNub bietet Funktionen zur Erfassung von Ereignissen, die auf der PubNub-Plattform stattfinden. Mit Funktionen können Sie Code schreiben oder bestehende Integrationen nutzen, um Daten umzuwandeln, umzuleiten, zu erweitern, zu filtern und sogar zu aggregieren. Einen genaueren Überblick über PubNub-Funktionen finden Sie in der [Funktionsdokumentation](https://www.pubnub.com/docs/serverless/functions/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de). In diesem Artikel geht es jedoch darum, wie PubNub-Funktionen mit App Context zusammenhängen.
### Aktualisierung von App Context aus PubNub Functions heraus
Die Umgebung, in der die Funktionen ausgeführt werden, hat Zugriff auf das [PubNub-Modul](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de); dieses Modul hat vollen Zugriff auf den App Context auf Ihrem Keyset, und einige Beispiele aus der Dokumentation sind unten aufgeführt. :
Beispiel für [Get User App Context Metadata](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de)
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
Beispiel für [Set Channel App Context Metadata (Kanal-App-Kontext-Metadaten](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de))
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
Umfassende Code-Beispiele finden Sie in der Dokumentation des [PubNub-Moduls](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de).
### Auslösen einer PubNub-Funktion bei Änderung des App-Kontextes
Es gibt zahlreiche Ereignistypen, die eine Funktion auslösen können, wie in der [Dokumentation Event Types](https://www.pubnub.com/docs/serverless/functions/overview#event-types?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) beschrieben. Dazu gehört die Möglichkeit, zu erkennen, wann Nachrichten und Signale gesendet werden, Funktionen nach dem Auftreten von Präsenzereignissen auszulösen und Funktionen in einem bestimmten Intervall oder bei Bedarf auszuführen. Zum Zeitpunkt der Erstellung dieses Artikels ist es **nicht** möglich, Funktionen nach Aktualisierungen des App-Kontextes auszuführen, aber wenn Sie feststellen, dass Ihre Anwendung dies benötigt, wenden Sie sich bitte an unser [Support-Team](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), das gerne Ihre Anwendungsfälle durchgehen wird.
Nächste Schritte
----------------
Um App Context in Aktion zu sehen, können Sie sich unsere [Chat-Demo](https://www.pubnub.com/demos/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) ansehen, die App Context zusammen mit unserem Chat-SDK verwendet, um zu zeigen, wie eine Chat-App mit serverlosem Speicher aussehen könnte. In der Chat-Demo können Sie Benutzer- und Channel-Metadaten festlegen und sehen, wie sich diese Änderungen in Echtzeit auf andere Zuhörer und Mitglieder übertragen.
Sehen Sie sich auch unsere 3-teilige Serie über den BizOps-Workspace an, der von App Context abhängt und die folgenden Themen behandelt: [Verwalten von Benutzern und Kanälen](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de), [Überwachen und Moderieren von Konversationen](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) und [sicheres Moderieren von Chats](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de).
Und schließlich können Sie sich jederzeit an das DevRel-Team unter [devrel@pubnub.com](mailto:devrel@pubnub.com) oder an unser [Support-Team](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) wenden, wenn Sie Hilfe zu einem beliebigen Aspekt Ihrer PubNub-Entwicklung benötigen.
Wie kann PubNub Ihnen helfen?
=============================
Dieser Artikel wurde ursprünglich auf [PubNub.com](https://www.pubnub.com/how-to/use-app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) veröffentlicht.
Unsere Plattform hilft Entwicklern bei der Erstellung, Bereitstellung und Verwaltung von Echtzeit-Interaktivität für Webanwendungen, mobile Anwendungen und IoT-Geräte.
Die Grundlage unserer Plattform ist das größte und am besten skalierbare Echtzeit-Edge-Messaging-Netzwerk der Branche. Mit über 15 Points-of-Presence weltweit, die 800 Millionen monatlich aktive Nutzer unterstützen, und einer Zuverlässigkeit von 99,999 % müssen Sie sich keine Sorgen über Ausfälle, Gleichzeitigkeitsgrenzen oder Latenzprobleme aufgrund von Verkehrsspitzen machen.
PubNub erleben
--------------
Sehen Sie sich die [Live Tour](https://www.pubnub.com/tour/introduction/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) an, um in weniger als 5 Minuten die grundlegenden Konzepte hinter jeder PubNub-gestützten App zu verstehen
Einrichten
----------
Melden Sie sich für einen [PubNub-Account](https://admin.pubnub.com/signup/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) an und erhalten Sie sofort kostenlosen Zugang zu den PubNub-Schlüsseln
Beginnen Sie
------------
Mit den [PubNub-Dokumenten](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) können Sie sofort loslegen, unabhängig von Ihrem Anwendungsfall oder [SDK](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=de) | pubnubdevrel | |
1,916,876 | 앱 컨텍스트 사용 방법 | PubNub 앱 컨텍스트는 사용자, 채널, 멤버십 정보를 위한 사용하기 쉬운 서버리스 스토리지입니다. | 0 | 2024-07-09T06:54:31 | https://dev.to/pubnub-ko/aeb-keontegseuteu-sayong-bangbeob-3206 | 펍넙 [앱 컨텍스트는](https://www.pubnub.com/products/app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용자, 채널, 멤버십 정보를 위한 서버리스 스토리지 메커니즘을 제공하여 복잡한 실시간 기능 개발을 간소화합니다. 앱 컨텍스트는 데이터가 변경될 때마다 이벤트를 트리거하여 앱을 실시간으로 업데이트할 수 있으며, 저장된 데이터는 [일루미네이트](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [펑션](https://www.pubnub.com/products/functions/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 및 기타 PubNub 서비스에서 사용하여 더 스마트한 의사 결정을 내릴 수 있습니다. 또한 코드가 필요 없는 직관적인 인터페이스를 통해 이 데이터를 관리할 수 있는 [BizOps Workspace를](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용할 수도 있습니다.
앱 컨텍스트란 무엇인가요?
--------------
[앱 컨텍스트](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) (이전의 오브젝트)를 사용하면 다음을 수행할 수 있습니다:
- 애플리케이션의 사용자 및 채널과 이들 간의 관계에 의미를 부여합니다.
- 모든 엔티티에 대한 메타데이터를 서버에 저장하여 클라이언트에 글로벌 소스를 간편하게 제공할 수 있습니다. 사용자는 사람을 나타낼 필요는 없으며, 대신 사용자 개체 내에 디바이스 상태를 저장하는 것이 일반적입니다.
- 객체의 값이 변경될 때마다 즉각적인 실시간 이벤트를 수신합니다.
모든 애플리케이션에서 앱 컨텍스트를 사용할 수 있지만 특히 [채팅 솔루션을](https://www.pubnub.com/solutions/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 만드는 개발자에게 인기가 높습니다.
앱 컨텍스트는 [사용자](https://www.pubnub.com/docs/general/metadata/users-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 및 [채널에](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 대한 추천 필드 세트와 이들 간의 [멤버십에](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 대한 추천 필드를 제공합니다. 이러한 필드의 대부분은 선택 사항이므로 어떤 필드를 채울지 선택할 수 있으며, 사용자 지정 필드를 직접 제공할 수도 있습니다.
앱 컨텍스트 사용 사례
------------
앞서 언급했듯이 앱 컨텍스트는 특히 채팅 솔루션을 만드는 개발자들에게 인기가 있지만 다양한 사용 사례에서 사용할 수 있습니다:
- **채팅:** 사용자 정보(이름, 프로필 사진, '휴가 중' 상태, 직책), 채널 정보(아이콘, 설명, 대상), 사용자 역할을 저장하고 채널별, 사용자별로 마지막으로 읽은 메시지를 추적할 수 있습니다.
- **스포츠, 미디어 및 엔터테인먼트:** 실시간 투표 및 투표, 실시간 퀴즈, 실시간 입찰, 상품 또는 프로모션에 대한 CTA(클릭 유도 문안) 오버레이.
- **게임:** 플레이어 레벨, 승리한 게임, 배지 등 실시간 플레이어 통계, 리더보드 추적 및 관리
- **기타:** 기타: 사용자 부재/활성 상태, 사기 탐지를 위한 사용자 신뢰 점수, 사용자 위치 추적, 배터리 잔량 또는 마지막 센서 판독값과 같은 IoT 디바이스 상태
앱 컨텍스트를 활성화하는 방법
----------------
앱 컨텍스트는 다음과 같이 활성화할 수 있습니다:
1. [관리자 포털에](https://admin.pubnub.com/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 로그인합니다.
2. 포털 왼쪽에 있는 '앱' 탭을 클릭합니다.
3. 애플리케이션을 클릭합니다. 이 애플리케이션의 키 설정 페이지로 이동합니다.
4. 아직 키셋을 만들지 않았다면 '새 키셋 만들기' 버튼을 클릭하여 새 키셋을 만듭니다. 이 키 집합에 대한 구성 페이지로 이동합니다.
5. 슬라이더를 클릭하여 앱 컨텍스트를 사용 설정합니다.
6. **버킷 지역** 설정은 데이터가 저장되는 지역입니다. 키 집합에 변경 사항을 저장한 후에는 리전을 수정할 수 없다는 점에 유의하세요.
7. **사용자 메타데이터 이벤트** 및 **채널 메타데이터 이벤트** 설정이 활성화된 경우 나중에 설명하는 대로 데이터베이스에서 데이터가 설정되거나 제거될 때 사용자 및 채널 이벤트가 트리거됩니다.
8. **멤버십 이벤트** 설정이 활성화되어 있으면 나중에 설명하는 대로 멤버십이 추가, 업데이트 또는 제거될 때 멤버십 이벤트가 트리거됩니다.
9. 나머지 옵션은 이 문서의 범위를 벗어나지만 자세한 내용은 [앱 컨텍스트 문서를](https://www.pubnub.com/docs/general/metadata/basics#configuration?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 참조하세요.
10. **변경 사항 저장을** 클릭하여 업데이트된 변경 사항을 저장합니다.
사용자 앱 컨텍스트
----------
새 사용자가 애플리케이션에 등록되면 외부 ID 공급자를 통해 해당 사용자를 PubNub에 고유하게 식별할 수 있는 방법이 있는데, 이것이 바로 사용자의 클라이언트가 PubNub SDK를 초기화하는 데 사용할 [사용자 ID입니다](https://www.pubnub.com/docs/general/setup/users-and-devices?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko). PubNub 사용자 ID는 솔루션의 다른 곳에서 동일한 사용자를 식별하는 데 사용하는 ID와 다를 수 있으므로 '외부 ID' 필드에 이를 추적해 두는 것이 좋습니다.
사용자 이름, 이메일, 프로필 URL은 설명이 필요하지 않지만, 앱 컨텍스트 내에 보관하면 사용자가 이러한 필드 중 하나를 변경하면 모든 SDK에서 지원하는 앱 컨텍스트 이벤트를 사용하여 변경 사항을 모든 수신 클라이언트에 대규모로 전파할 수 있다는 이점이 있습니다.
### 앱 컨텍스트에서 사용자 표현을 만들려면 어떻게 해야 하나요?
앱 컨텍스트 사용자를 만드는 방법에는 두 가지가 있습니다.
1. PubNub 관리자 포털에 있는 [BizOps 워크스페이스를](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용하여 사용자를 생성하고 관리할 수 있습니다. 여기에는 코드가 필요하지 않으며 별도의 문서에 예제와 함께 프로세스가 설명되어 있습니다: [BizOps Workspace로 사용자 및 채널을 관리하는 방법](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko)
2. API는 사용자를 생성하기 위해 각 SDK를 통해 노출됩니다. 예를 들어, [Chat SD](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko)K를 사용하는 경우 이 SDK는 앱 컨텍스트를 백그라운드에서 처리합니다. 예를 들어, Chat SDK의['createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko)' 메서드는 사용자를 만들기 위해 JavaScript의 [setUUIDMetadata를](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 내부적으로 호출합니다. Chat SDK가 아닌 다른 SDK를 사용하는 경우 앱 컨텍스트 데이터를 수정하기 위한 전용 API가 제공됩니다. 이미 자바스크립트 [setUUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) API에 대해 언급했지만 [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 등 모든 API에 대한 동등한 API가 있습니다.
채널 앱 컨텍스트
---------
사용자가 채널을 구독하거나 게시할 때마다 PubNub는 자동으로 채널을 생성하지만, 채널은 애플리케이션에 의미 있는 무언가를 나타낼 수 있습니다(예: 채팅 앱에서 채널을 사용하여 소통하는 그룹 채팅이 있거나 라이브 이벤트에서 전용 채널을 사용하여 투표를 관리할 수 있습니다).
채널에 대해 앱 컨텍스트를 지정하면 해당 채널과 관련된 원하는 메타데이터가 저장되고 업데이트되며, 이러한 업데이트는 선택적으로 관심 있는 모든 클라이언트에 전파됩니다. 채널에 '사용자 A와 사용자 B 간의 채팅' 등의 이름을 지정할 수 있으며, 채널이 일부 문서 저장소와 관련되어 있을 경우 사용자 지정 'URI' 필드에서 추적할 수 있습니다.
### 앱 컨텍스트에서 채널 표현을 만들려면 어떻게 해야 하나요?
사용자와 마찬가지로 앱 컨텍스트 채널을 만드는 방법에는 두 가지가 있습니다.
1. 채널은 [BizOps 워크스페이스를](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용하여 만들고 관리할 수 있습니다. 여기에는 코드가 필요하지 않으며 별도의 문서에 예제와 함께 프로세스가 설명되어 있습니다: [BizOps Workspace로 사용자 및 채널을 관리하는 방법](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko)
2. API는 각 SDK를 통해 노출되어 채널을 만들 수 있습니다. 예를 들어,['](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 채널[만들기](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) ' 메서드 패밀리는 커버 아래에서 JavaScript의 [setChannelMetadata(](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) )를 호출하여 앱 컨텍스트를 백그라운드에서 처리하는 등, [Chat SDK를](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용하는 경우 앱 컨텍스트를 처리합니다. Chat SDK가 아닌 다른 SDK를 사용하는 경우에는 [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 등 앱 컨텍스트 데이터를 수정할 수 있는 전용 API가 제공됩니다.
멤버십 앱 컨텍스트
----------
사용자와 채널 모두에 대한 앱 컨텍스트를 정의했으면 이제 사용자가 채널의 ['멤버'](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 인지 여부를 지정하여 둘 사이의 관계를 정의할 수 있습니다.
사용자가 채널에 가입하면 같은 채널의 다른 멤버에 대한 업데이트를 받을 수 있으며, 사용자가 `가입하거나` `탈퇴할` 때뿐만 아니라 해당 사용자의 앱 컨텍스트가 업데이트될 때마다(예: 이름을 업데이트할 때) 알림을 받을 수 있습니다.
**이는** 특히 채팅 앱 개발자에게**많은 가치를 제공하는 놀랍도록 강력한 메커니즘입니다**. 앱 컨텍스트를 사용하지 않는다면 모든 사용자를 직접 추적하고, 해당 사용자가 어떤 채널의 멤버였는지, 해당 사용자가 가입하거나 탈퇴할 때 같은 채널의 다른 모든 사람에게 알려야 합니다. 이 문제는 선형적으로 확장되지 않기 때문에 솔루션에 사용자가 많을수록 이 모든 정보를 중앙에서 관리하기가 더 어려워집니다.
앱 컨텍스트를 사용하면 채팅 클라이언트가 내부 상태를 유지하는 데 필요한 모든 정보를 제공받을 수 있으며, 무단 액세스를 방지하기 위해 PubNub [액세스 관리자를](https://www.pubnub.com/docs/general/security/access-control?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용하여 해당 데이터를 완벽하게 제어할 수 있습니다.
### 멤버십은 어떻게 만들 수 있나요?
사용자 및 채널과 마찬가지로 멤버십을 만드는 방법에는 두 가지가 있습니다.
1. 멤버십은 코드를 작성하지 않고도 [BizOps 워크스페이스를](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 사용하여 만들고 관리할 수 있습니다. 자세한 내용은 문서의 [멤버십 관리](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 섹션을 참조하세요.
2. 채널을 만들기 위한 API는 각 SDK를 통해 노출됩니다. 예를 들어['](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 채널[만들기](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) ' 메서드 제품군은 은밀하게 JavaScript의 [setMemberships를](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 호출하여 앱 컨텍스트를 처리합니다. Chat SDK가 아닌 다른 SDK를 사용하는 경우에는 [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 등 앱 컨텍스트 데이터를 수정할 수 있는 전용 API가 제공됩니다.
앱 컨텍스트 변경 시 실시간 이벤트 수신
----------------------
앱 컨텍스트 데이터가 변경되면 애플리케이션이 변경 사항을 실시간으로 알려주는 이벤트를 수신하므로 서버에 업데이트를 폴링하지 않고도 반응형 앱을 만들 수 있습니다.
### PubNub SDK를 통해 앱 컨텍스트 변경 사항 수신(채팅 SDK 제외)
모든 PubNub SDK는 "이벤트 리스너"를 노출하며, 이 리스너를 통해 앱 컨텍스트 데이터가 변경될 때마다 실행되는 `오브젝트 이벤트를` 수신할 수 있습니다.
[이 블로그에서 이벤트 엔진 및 이벤트 리스너 업데이트에 대해](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 설명한 것처럼, 이 글을 쓰는 시점에서 일부 SDK는 새로운 형식의 '이벤트 리스너'를 지원한다는 약간의 미묘한 차이가 있다는 점에 유의하세요. 이벤트 리스너 형식에 관계없이 원칙은 동일하게 유지됩니다. 앱은 SDK에서 제공하는 리스너를 통해 앱 컨텍스트 이벤트를 수신하도록 등록해야 합니다.
[JavaScript SDK 문서에](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 자세히 설명된 대로 앱 컨텍스트 이벤트를 등록하는 방법은 다음과 같습니다:
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
다른 언어로 앱 컨텍스트 이벤트를 등록하는 방법을 설명하는 문서는 다음 위치에서 찾을 수 있습니다: [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) (Python은 이벤트를 '메타데이터'라고 부르는 반면, 다른 SDK는 이벤트를 '오브젝트'라고 부름), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 등.
작동하는 예제 및 대화형 데모는 [BizOps 워크스페이스로 사용자 및 채널을 관리하는 방법에](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 대한 문서를 참조하세요.
### PubNub Chat SDK를 통해 앱 컨텍스트 변경 사항 수신하기
PubNub Chat SDK는 [streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) API 제품군을 통해 앱 컨텍스트 이벤트를 노출합니다.
다음은 웹용 [Chat SDK 데모 앱에서](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web) 가져온 몇 가지 예시입니다:
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
Chat SDK의 간단한 '상태 확인' 샘플을 기반으로 한 작업 예제는 [BizOps 워크스페이스로 사용자 및 채널을 관리하는 방법에](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 대한 문서를 참조하세요.
앱 컨텍스트 및 PubNub 일루미네이트
----------------------
[PubNub Illuminate는](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 조직의 고유한 사용 사례에 맞게 사용자 지정할 수 있는 실시간 의사 결정 및 분석 제품입니다. 이 제품은 제품 관리자와 분석가를 염두에 두고 설계되어 다음과 같은 작업을 수행할 수 있습니다:
- 사용자 지정 실시간 집계 지표를 정의합니다.
- 조건 및 작업으로 의사 결정 규칙을 설정하고 배포합니다.
- 추적 중인 메트릭, 실행된 작업 및 그 결과를 즉시 시각화하세요.
엔지니어링 팀이 진행 중인 프로젝트에서 벗어나지 않고도 이 모든 작업을 실시간으로 수행할 수 있습니다.
PubNub 일루미네이트가 무엇이며 데이터에 대한 즉각적인 실행 가능한 인사이트를 제공하는 방법에 대한 자세한 설명은 이 글의 범위를 벗어나지만, 자세한 내용은 [문서와](https://www.pubnub.com/docs/illuminate/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) [제품 개요를](https://www.pubnub.com/blog/real-time-decisioning-with-illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 참조하시기 바랍니다.
요약: 애플리케이션과 관련된 **지표**, 즉 측정하고자 하는 항목을 정의합니다. 예를 들어 자산 추적 시나리오에서는 주문이 접수된 후 시간이 될 수 있습니다. 해당 지표와 관련된 특정 [**조건**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) (예: '주문 후 시간'이 특정 값을 초과할 수 있음)이 충족되면 어떤 **조치를** 취할 수 있습니다.
어떤 [조치를](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 취할지는 유연하지만 가능한 조치 중 세 가지는 앱 컨텍스트와 관련이 있습니다:
### PubNub 일루미네이트로 사용자 업데이트
사전 정의되거나 사용자 정의된 사용자 메타데이터를 설정할 수 있습니다. 아래 스크린샷은 ID가 123인 사용자의 상태가 정적 값인 '새 상태'로 설정되어 있지만 **작업을** 트리거한 **조건에** 따라 동적 값을 설정할 수도 있습니다.
### PubNub 일루미네이트로 채널 업데이트
사전 정의 또는 사용자 지정 채널 메타데이터를 설정할 수 있습니다. 아래 스크린샷은 ID가 123인 채널의 이름이 정적 값인 '새 이름'으로 설정되어 있지만 **작업을** 트리거한 **조건에** 따라 동적 값을 설정할 수도 있습니다.
### 펍넙 일루미네이트로 멤버십 업데이트하기
사전 정의 또는 사용자 정의 멤버십 메타데이터를 설정할 수 있습니다. 아래 스크린샷은 사용자 ID 123의 채널 123 멤버십 상태가 정적 값인 '새 상태'로 설정된 것을 보여줍니다. **작업을** 트리거한 **조건에** 따라 동적 값을 설정할 수도 있습니다.
앱 컨텍스트 및 PubNub 함수
------------------
펍넙은 펍넙 플랫폼에서 발생하는 이벤트를 캡처할 수 있는 함수를 제공합니다. 함수를 사용하면 코드를 작성하거나 기존 통합을 활용하여 데이터를 변환, 경로 변경, 보강, 필터링 및 집계할 수 있습니다. 펍넙 함수에 대한 자세한 개요는 [함수 설명서를](https://www.pubnub.com/docs/serverless/functions/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 참조하시기 바라며, 이 글에서는 펍넙 함수가 앱 컨텍스트와 어떻게 연관되는지 살펴보겠습니다.
### PubNub 함수 내에서 앱 컨텍스트 업데이트하기
함수가 실행되는 환경에서는 [PubNub 모듈에](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 액세스할 수 있습니다. 이 모듈은 키 집합의 앱 컨텍스트에 대한 전체 액세스 권한을 가지며, 문서에서 가져온 몇 가지 예는 다음과 같습니다. :
[사용자 앱 컨텍스트 메타데이터](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 가져오기 예제
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
[채널 앱 컨텍스트 메타데이터 설정](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 예제
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
포괄적인 코드 예제는 [PubNub 모듈](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 설명서를 참조하세요.
### 앱 컨텍스트가 변경될 때 PubNub 함수 트리거하기
[이벤트 유형 문서에](https://www.pubnub.com/docs/serverless/functions/overview#event-types?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 자세히 설명된 대로 함수를 트리거할 수 있는 다양한 이벤트 유형이 있습니다. 여기에는 메시지와 신호가 전송되는 시기를 감지하는 기능, 존재 이벤트 발생 후 함수를 트리거하는 기능, 지정된 간격으로 또는 필요에 따라 함수를 실행하는 기능 등이 포함됩니다. 현재로서는 앱 컨텍스트 업데이트 후 함수를 실행할 수 **없지만**, 애플리케이션에 이 기능이 필요한 경우 [지원팀에](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 문의하시면 사용 사례를 안내해 드릴 것입니다.
다음 단계
-----
앱 컨텍스트가 실제로 작동하는 모습을 보려면, 서버리스 스토리지를 사용하는 채팅 앱이 어떤 모습인지 보여주기 위해 채팅 SDK와 함께 앱 컨텍스트를 사용하는 [채팅 데모를](https://www.pubnub.com/demos/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 확인하세요. 채팅 데모에서는 사용자 및 채널 메타데이터를 설정하고 이러한 변경 사항이 다른 청취자 및 구성원에게 실시간으로 전파되는 것을 확인할 수 있습니다.
또한 앱 컨텍스트에 따라 달라지는 BizOps 워크스페이스에 대한 3부 시리즈에서 관련 방법을 살펴보세요: [사용자 및 채널 관리하기](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [대화 모니터링 및 중재하기](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko), [채팅을 안전하게 중재](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko)하기 등을 다루고 있습니다.
마지막으로, 개발자팀( [devrel@pubnub.com](mailto:devrel@pubnub.com) )에 문의하거나 [지원팀에](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 연락하여 PubNub 개발과 관련하여 도움이 필요하면 언제든지 문의하세요.
펍넙이 어떤 도움을 드릴 수 있나요?
====================
이 문서는 원래 [PubNub.com에](https://www.pubnub.com/how-to/use-app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 게시되었습니다.
저희 플랫폼은 개발자가 웹 앱, 모바일 앱 및 IoT 디바이스를 위한 실시간 인터랙티브를 구축, 제공 및 관리할 수 있도록 지원합니다.
저희 플랫폼의 기반은 업계에서 가장 크고 확장성이 뛰어난 실시간 에지 메시징 네트워크입니다. 전 세계 15개 이상의 PoP가 월간 8억 명의 활성 사용자를 지원하고 99.999%의 안정성을 제공하므로 중단, 동시 접속자 수 제한 또는 트래픽 폭증으로 인한 지연 문제를 걱정할 필요가 없습니다.
PubNub 체험하기
-----------
[라이브 투어를](https://www.pubnub.com/tour/introduction/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 통해 5분 이내에 모든 PubNub 기반 앱의 필수 개념을 이해하세요.
설정하기
----
PubNub [계정에](https://admin.pubnub.com/signup/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 가입하여 PubNub 키에 무료로 즉시 액세스하세요.
시작하기
----
사용 사례나 [SDK에](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 관계없이 [PubNub 문서를](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=ko) 통해 바로 시작하고 실행할 수 있습니다. | pubnubdevrel | |
1,916,877 | Tron Wallet Development: A Comprehensive Guide | Introduction Tron wallet development is a crucial aspect of the blockchain... | 27,673 | 2024-07-09T06:55:25 | https://dev.to/rapidinnovation/tron-wallet-development-a-comprehensive-guide-4bgg | ## Introduction
Tron wallet development is a crucial aspect of the blockchain ecosystem,
providing users with secure and efficient ways to manage their TRX tokens and
interact with decentralized applications (DApps).
## What is Tron Wallet Development?
Tron Wallet Development refers to creating digital wallets that operate on the
Tron blockchain network. These wallets store, send, and receive TRX,
leveraging Tron's high throughput, scalability, and smart contract
functionality.
## Key Features of Tron Wallets
Tron wallets come with features like smart contract integration, user-friendly
interfaces, two-factor authentication, and staking capabilities, making them
essential tools for managing digital assets.
## How to Develop a Tron Wallet
Developing a Tron wallet involves choosing the right technology stack,
following a step-by-step development process, and implementing robust security
measures to protect user assets.
## Types of Tron Wallets
Tron wallets are available in various forms, including desktop, mobile, web,
and hardware wallets, each offering different levels of convenience and
security.
## Benefits of Tron Wallet Development
Tron wallet development offers enhanced user control and security, real-time
transaction capabilities, and exceptional accessibility and convenience.
## Challenges in Tron Wallet Development
Developers face challenges such as security concerns, user interface and
experience issues, and integration with existing systems.
## Future Trends in Tron Wallet Development
Future trends include the integration of AI and machine learning, increased
focus on multi-currency support, and the adoption of advanced security
protocols.
## Real-World Examples of Tron Wallets
Examples like TronLink and TronWallet showcase the advancements in digital
wallet technology, providing secure and user-friendly platforms for managing
digital assets on the Tron blockchain.
## Why Choose Rapid Innovation for Tron Wallet Development and Implementation
Rapid Innovation offers expertise in blockchain technology, a proven track
record with Tron solutions, and comprehensive support and maintenance, making
them an ideal partner for Tron wallet development.
## Conclusion
Investing in Tron wallets is strategically important for leveraging the
utility, efficiency, and scalability of the Tron network, making them valuable
assets for users and businesses in the digital economy.
📣📣Drive innovation with intelligent AI and secure blockchain technology! Check
out how we can help your business grow!
[Blockchain App Development](https://www.rapidinnovation.io/service-
development/blockchain-app-development-company-in-usa)
[Blockchain App Development](https://www.rapidinnovation.io/service-
development/blockchain-app-development-company-in-usa)
[AI Software Development](https://www.rapidinnovation.io/ai-software-
development-company-in-usa)
[AI Software Development](https://www.rapidinnovation.io/ai-software-
development-company-in-usa)
## URLs
* <https://www.rapidinnovation.io/post/everything-you-need-to-know-about-tron-wallet-development-8d5cd>
## Hashtags
#TronWalletDevelopment
#BlockchainEcosystem
#CryptoSecurity
#DeFi
#DigitalAssets
| rapidinnovation | |
1,916,878 | Manjaro Linux MacBook Pro 14,1 | Leaving steps to re provision a MacBook Pro 14,1 in the future for me :P Download Manjaro... | 0 | 2024-07-09T06:56:00 | https://dev.to/casonadams/manjaro-linux-macbook-pro-141-2h93 | macbook, manjaro, linux | Leaving steps to re provision a MacBook Pro 14,1 in the future for me :P
## Download [Manjaro](https://manjaro.org/) Linux
https://manjaro.org/download/
I am using Gnome version x86
## Burn iso image to usb drive
There are various tools to help with this. I won't go into details that is a blog in it self.
## Boot Mac via drive
- Insert drive
- Reboot machine
- Hold option key to get boot menu
- Select drive
- Manjaro boot screen will load, chose the default option to boot with open source drivers
### Getting WiFi working
Open a terminal and execute this command, `wlp2s0` and `31` might differ per machine. Likely a smaller number will have a greater success.
```sh
iw dev wlp2s0 set txpower fixed 31
```
Then connect to WiFi
### Install
Choose to install, and follow steps for installation. Once complete reboot.
### Post Install
#### auto fix WiFi
I created a simple systemd unit file and saved it to `/etc/systemd/system/wifi-txpower.service`
```sh
[Unit]
Description=Set WiFi txpower on boot
[Service]
Type=oneshot
ExecStart=/usr/bin/iw dev wlp2s0 set txpower fixed 31
Restart=on-failure
RestartSec=5s
[Install]
WantedBy=multi-user.target
```
Test the service
` sudo chmod 644 /etc/systemd/system/wifi-txpower.service`
- `systemctl daemon-reload`
- `systemctl start wifi-txpower`
- `journalctl -exfu wifi-txpower`
If everything is good go ahead enable the service and reboot and verify that WiFi works on reboot
```sh
systemd enable wifi-txtpower
reboot
```
- Most of the time it works just fine, if not toggle wifi on and off and you should be good.
#### fix sound
I followed this repo here https://github.com/davidjo/snd_hda_macbookpro because my sound card was the same.
```sh
cat /proc/asound/card0/codec* | grep Codec
Codec: Cirrus Logic CS8409/CS42L83
Codec: Intel Kabylake HDMI
```
```sh
pacman -S gcc linux-headers make patch wget
yay -Syu snd-hda-macbookpro-dkms-git
```
Then reboot
#### Set keyboard backlighting
- Install `brighnessctl`
```sh
sudo pacman -Syu brightnessctl
```
- List devices
```sh
brightnessctl --list
Device 'spi::kbd_backlight' of class 'leds':
Current brightness: 255 (100%)
Max brightness: 255
```
- Set desired brightness
```sh
brightnessctl --device='spi::kbd_backlight' s 100%
```
I didn't dive into getting the touchbar working, it seems that I need to do much more work than this. I am fine without it as I map CAPS to ESC anyway.
Happy Hacking!
| casonadams |
1,916,879 | Launch Your Career to New Heights with BrainRocket!🚀 | Hi there! Exciting news about new job openings at BrainRocket🚀! We are actively looking for... | 0 | 2024-07-09T06:58:41 | https://dev.to/alena_samoilenko/launch-your-career-to-new-heights-with-brainrocket-14jd | career, hiring, html, relocation | Hi there!
Exciting news about new job openings at **[BrainRocket](https://www.brainrocket.com/)**🚀!
**We are actively looking for talented professionals for the following positions:**
- HTML/Markup Developer
- UI Designer/Product Designer
- Motion Designer
- And much more IT vacancies
**What we offer:**
- Relocation to Cyprus and work in a modern office
- Great benefits for you and your family
- Fair compensation
And that's just a small part of our strengths.
If you're interested in joining our team, visit our website [BrainRocket](https://www.brainrocket.com/) to learn more or email us at
📩samoilenko.a@brainrocket.com
📲 @alyonasam (Telegram)
We look forward to hearing from you!😊
| alena_samoilenko |
1,916,880 | 2024’s Best YouTube Downloader: Free Tool for Every Need | YouTube is a dominant platform for watching video content and having a reliable downloader is... | 0 | 2024-07-09T06:59:28 | https://dev.to/yt5s/2024s-best-youtube-downloader-free-tool-for-every-need-ee9 | youtubedownloader, yt5s | YouTube is a dominant platform for watching video content and having a reliable downloader is essential for offline viewing. In 2024, YT5s is a reliable [YouTube Downloader](https://yt5s.is/), providing a wide range of user needs with its simple powerful features.
YT5s YouTube Downloader offers a seamless downloading experience with its user-friendly interface, making it accessible for those who don’t have technical knowledge. The platform does not require any registration, ensuring a quick and hassle-free process for users. Additionally, YT5s supports multiple format such as MP4, MP3, 3GP, WEBM, etc. Users also can select video quality including 360p, 720p, 1080p, etc, allowing users to choose best quality that best suits their needs. If you’re looking to download videos for offline viewing or simply convert YouTube videos to audio files, then you can use YT5s. This YouTube Downloader provides fast download speed, making it easy for users to download quickly and efficiently.
YT5s operates with various devices and operating systems such as Windows, Mac, Android, Desktop, Tablets, etc. This tool is not only free but also reliable, making it a top choice for anyone who wants to download YouTube content for offline viewing.
## Why Choose YT5s YouTube Downloader?
###Web-Based Tool
Users can download videos immediately without the need to create an account or registration process using this YouTube Downloader. They have just to visit yt5s.is a website and instantly access it and download YouTube videos.
###Straightforward User-interface
The intuitive design ensures that users of all technical levels can navigate and use the downloader without any complications.
###Fast Download Speed
The YouTube downloader offers quick download times, allowing users to save their desired quality time.
###Supports Multiple Formats
YT5s supports a variety of formats, including MP4 for video and MP3 for audio, giving users flexibility in how they download their content.
###Operates with Various Platforms
The platform works seamlessly on various devices, including desktops, laptops, tablets, and smartphones, ensuring users can download content regardless of their device.
###High-Resolution Quality
Users can choose from various resolutions, including 1080p and 720p, ensuring that they can download high-quality videos that best suit their needs.
###Unlimited Download
YT5s is a versatile online tool that allows for unlimited downloads of YouTube videos in any format with high quality. Users can download YouTube videos as many as they want.
###Safe and Secure
Our YouTube Downloader prioritizes user security and privacy, providing a safe video download environment. It doesn’t require any personal information from users.
##How to Use YT5s
Here’s a simple step-by-step guide:
###Find the YouTube Video
Go to YouTube and copy the URL of the video you wish to download.
###Paste the URL
Open YT5s in your web browser and paste the copied URL into the provided field.
###Select Format and Quality
Choose your desired format (e.g., MP4, MP3) and the quality (e.g., 1080p, 720p).
###Download
Click the download button, and your video or audio file will be ready in no time.
##Conclusion
YT5s is a standout YouTube downloader in 2024, offering a perfect blend of simplicity, speed, and versatility. Whether you need to download videos for offline viewing, extract audio, or Download content in various formats, YT5s is a reliable and efficient tool that meets every need without providing any cost. Give YT5s a try and experience seamless video downloading today!
| yt5s |
1,916,882 | Unleashing The Harmonious Fusion: AI Software Music Revolutionizes Musical Creativity | AI Software for Music: Revolutionizing the Music Industry Artificial Intelligence (AI) is... | 0 | 2024-07-09T07:00:07 | https://dev.to/saumya27/unleashing-the-harmonious-fusion-ai-software-music-revolutionizes-musical-creativity-cd9 | ai | **AI Software for Music: Revolutionizing the Music Industry**
Artificial Intelligence (AI) is transforming various industries, and the music industry is no exception. AI software for music offers a wide range of capabilities, from composition and production to performance and personalized listening experiences. This article explores how AI is revolutionizing the music industry, the key applications of AI in music, and the benefits and challenges associated with this technology.
**Key Applications of AI in Music**
**1.Music Composition and Production:**
- AI-powered tools can generate melodies, harmonies, and rhythms, assisting composers in creating new music.
- Software such as OpenAI’s MuseNet and Google’s Magenta can compose music in various styles and genres.
- AI can also assist in producing music by suggesting chord progressions, generating accompaniments, and even mastering tracks.
**2. Music Performance:**
- AI can enhance live performances by providing real-time accompaniment and adapting to the musician’s playing style.
- AI-driven virtual instruments can emulate the sound and behavior of traditional instruments, offering new creative possibilities.
- Machine learning algorithms can analyze and interpret the nuances of a musician’s performance, adding expressive elements to digital instruments
.
**3. Music Recommendation and Personalization:**
- AI algorithms analyze listener preferences and behaviors to curate personalized playlists and recommendations.
- Streaming platforms like Spotify and Apple Music use AI to deliver customized listening experiences, improving user satisfaction and engagement.
- AI can predict emerging trends and suggest new artists or songs that match a listener’s taste.
**4. Audio Restoration and Enhancement:**
- AI-driven tools can restore old or damaged recordings by removing noise, enhancing clarity, and correcting pitch and timing errors.
- These tools are valuable for preserving historical recordings and improving the quality of audio content.
**Benefits of AI in Music**
**1. Enhanced Creativity:**
- AI provides musicians with new tools and techniques to explore creative ideas and experiment with different styles and sounds.
- It enables collaboration between human artists and AI, leading to innovative compositions and productions.
**2. Efficiency and Productivity:**
- AI automates repetitive and time-consuming tasks, allowing musicians to focus on the creative aspects of music-making.
- It accelerates the production process, enabling faster creation and release of new music.
**3. Accessibility:**
- AI democratizes music creation by making sophisticated tools available to a broader audience, including amateur musicians and hobbyists.
- It lowers the barrier to entry for music production, enabling more people to create and share their music.
**4. Personalized Experiences:**
- AI enhances the listening experience by delivering personalized content tailored to individual preferences.
- It helps listeners discover new music that aligns with their tastes, fostering a deeper connection with the music.
**Challenges of AI in Music**
**1. Quality and Originality:**
- While AI can generate music, it may lack the depth and emotional nuance of human-created compositions.
- Ensuring the originality and quality of AI-generated music remains a challenge.
**2. Ethical and Legal Issues:**
- The use of AI in music raises questions about intellectual property and copyright. Who owns the rights to AI-generated music?
- There are concerns about the potential displacement of human musicians and the impact on the job market.
**3. Bias and Fairness:**
- AI algorithms can inherit biases from the data they are trained on, leading to unfair or biased recommendations and decisions.
- Ensuring diversity and fairness in AI-driven music applications is crucial.
**4. Technical Limitations:**
- Despite advancements, AI still has limitations in understanding and replicating the complexities of human music-making.
- Developing more sophisticated AI models that can truly emulate human creativity is an ongoing challenge.
**Conclusion**
[AI software music](https://cloudastra.co/blogs/unleashing-the-harmonious-fusion-ai-software-music-revolutionizes-musical-creativity) is transforming the way music is created, produced, and consumed. From composition and performance to recommendation and analysis, AI offers numerous benefits that enhance creativity, efficiency, and accessibility. However, it also presents challenges related to quality, ethics, and technical limitations. As AI continues to evolve, it will be essential to address these challenges and harness the potential of AI to revolutionize the music industry positively. | saumya27 |
1,916,883 | Revolutionizing Human Resource Management with Technology and Automation | Human Resource Management (HRM) is undergoing a radical transformation thanks to advancements in... | 0 | 2024-07-09T07:01:10 | https://dev.to/iqra_hakeem_682f65b6b1c4b/revolutionizing-human-resource-management-with-technology-and-automation-5hhd |
[Human Resource Management](https://manxel.com/) (HRM) is undergoing a radical transformation thanks to advancements in technology and automation. As businesses strive to improve efficiency, reduce costs, and enhance employee experience, the integration of cutting-edge HR technology has become indispensable. This article delves into the role of technology and automation in revolutionizing human resource management, exploring its benefits, challenges, and future trends.
## [The Evolution of Human Resource Management](https://manxel.com/)
Traditionally, human resource management involved a plethora of manual processes, from maintaining employee records to managing payroll, recruitment, and performance evaluations. These tasks were not only time-consuming but also prone to errors. The advent of HR technology has streamlined these processes, allowing HR professionals to focus more on strategic initiatives that drive organizational growth.
## Key Areas Transformed by HR Technology
**1. Recruitment and Talent Acquisition**
Recruitment has been one of the most significantly impacted areas of human resource management. Automated applicant tracking systems (ATS) have revolutionized how companies attract, screen, and hire talent. These systems can parse resumes, filter candidates based on predefined criteria, and even schedule interviews, drastically reducing the time and effort required in the recruitment process.
Additionally, AI-powered tools can analyze vast amounts of data to predict the success of potential hires, helping HR managers make more informed decisions. Platforms like LinkedIn and Glassdoor also leverage AI to match candidates with suitable job opportunities, making the talent acquisition process more efficient.
**2. Onboarding**
Effective onboarding is crucial for new hires to integrate smoothly into the company culture and become productive quickly. Automated onboarding platforms guide new employees through the necessary paperwork, training modules, and company policies. These platforms ensure consistency in the onboarding process and provide new hires with a seamless experience.
**3. Employee Engagement and Communication**
Technology has enhanced employee engagement and communication significantly. HR portals and mobile apps enable employees to access company information, submit requests, and communicate with HR at any time. These tools also facilitate feedback mechanisms, allowing employees to share their concerns and suggestions, which can be addressed promptly by HR.
**4. Performance Management**
Traditional performance appraisals, often conducted annually, are being replaced by continuous performance management systems. These systems enable real-time feedback, goal setting, and performance tracking. Managers can use these tools to monitor employee progress, provide timely feedback, and identify areas for development, ensuring that performance management is an ongoing process rather than a one-time event.
**5. Payroll and Benefits Administration**
Automation has streamlined payroll processing and benefits administration, reducing errors and ensuring compliance with regulations. HR software can calculate salaries, taxes, and deductions accurately and generate payslips automatically. Employees can also access their payroll information, benefits, and tax documents through self-service portals, enhancing transparency and reducing HR workload.
**6. Learning and Development**
Technology has transformed learning and development (L&D) initiatives by providing employees with access to online training modules, webinars, and e-learning platforms. These resources can be tailored to individual needs, allowing employees to upskill at their own pace. Learning management systems (LMS) also enable HR to track employee progress and identify skill gaps, ensuring that L&D programs align with organizational goals.
**7. Workforce Analytics**
Data-driven decision-making is at the core of modern human resource management. Workforce analytics tools collect and analyze data on various HR metrics, such as employee turnover, attendance, and performance. These insights help HR professionals identify trends, predict future workforce needs, and develop strategies to address potential issues. Predictive analytics can also be used to forecast employee behavior, enabling proactive measures to enhance retention and engagement.
### `Benefits of HR Technology and Automation
**1. Increased Efficiency**
Automation eliminates repetitive tasks, allowing HR professionals to focus on more strategic activities. Processes that once took days or weeks can now be completed in minutes, leading to significant time savings.
**2. Improved Accuracy**
Automated systems reduce the likelihood of human error in tasks such as data entry, payroll processing, and compliance reporting. This ensures that HR records are accurate and up-to-date, minimizing the risk of costly mistakes.
**3. Cost Savings**
By streamlining HR processes, technology reduces the need for extensive administrative support, leading to cost savings. Additionally, automation can help prevent compliance violations, which can result in hefty fines.
**4. Enhanced Employee Experience**
HR technology provides employees with easy access to information and services, improving their overall experience. Self-service portals, mobile apps, and automated workflows enable employees to complete tasks quickly and efficiently.
**5. Data-Driven Decision Making**
Workforce analytics provide HR professionals with valuable insights into employee behavior and organizational trends. These insights enable data-driven decision-making, helping HR develop strategies that align with business objectives.
## Challenges of Implementing HR Technology
**1. Integration with Existing Systems**
Integrating new HR technology with existing systems can be complex and time-consuming. Organizations need to ensure that different systems can communicate effectively and share data seamlessly.
**2. Data Security and Privacy**
With the increasing amount of employee data being collected and stored, ensuring data security and privacy is paramount. HR professionals must implement robust security measures to protect sensitive information from cyber threats.
**3. Change Management**
Implementing new technology requires a cultural shift within the organization. Employees may resist change, and HR professionals need to manage this transition effectively by providing adequate training and support.
**4. Cost of Implementation**
While HR technology can lead to cost savings in the long run, the initial investment can be significant. Organizations need to weigh the benefits against the costs and ensure they have the necessary budget and resources for implementation.
## Future Trends in HR Technology
**1. Artificial Intelligence and Machine Learning**
AI and machine learning will continue to play a significant role in HR technology. These technologies can analyze large datasets to identify patterns, predict outcomes, and provide personalized recommendations. AI-powered chatbots, for example, can handle routine HR queries, freeing up HR professionals to focus on more complex tasks.
**2. Blockchain for HR**
Blockchain technology has the potential to revolutionize HR processes by providing a secure and transparent way to verify employee credentials, track payroll transactions, and manage contracts. Blockchain can also enhance data security and reduce the risk of fraud.
**3. Virtual Reality (VR) and Augmented Reality (AR)**
VR and AR are being explored for training and development purposes. These technologies can create immersive learning experiences, allowing employees to practice skills in a virtual environment. VR and AR can also be used for remote onboarding, providing new hires with a virtual tour of the workplace.
**4. Remote Work Technology**
The rise of remote work has accelerated the adoption of technology that supports virtual collaboration and communication. Tools such as video conferencing, project management software, and virtual whiteboards enable remote teams to work together effectively. HR technology will continue to evolve to meet the needs of a distributed workforce.
**5. Employee Experience Platforms**
Employee experience platforms integrate various HR functions, such as onboarding, performance management, and learning, into a single interface. These platforms provide a seamless experience for employees and help HR professionals manage the entire employee lifecycle more effectively.
## Conclusion
HR technology and automation are transforming human resource management, making it more efficient, accurate, and strategic. As organizations continue to embrace digital transformation, the role of HR technology will only become more critical. By leveraging these tools, HR professionals can enhance employee experience, drive organizational growth, and navigate the complexities of the modern workplace. The future of human resource management lies in the [intelligent](https://dev.to/new) use of technology, and those who adapt will be well-positioned for success in the digital age. | iqra_hakeem_682f65b6b1c4b | |
1,916,884 | Mulesoft Certification How to Prepare for Exam Success | Mulesoft Certification Engaging with this community allows you to exchange ideas, share best... | 0 | 2024-07-09T07:02:04 | https://dev.to/mulesoftcertification1/mulesoft-certification-how-to-prepare-for-exam-success-1bce |
<a href="https://dumpsarena.com/mulesoft-certification/mulesoft-certification/">Mulesoft Certification</a> Engaging with this community allows you to exchange ideas, share best practices, and gain insights into the latest trends and innovations in API integration and management. Additionally, Mulesoft provides a variety of exclusive resources, including advanced training modules, webinars, and technical documentation. These resources are designed to deepen your understanding of the Anypoint Platform and keep you updated on the latest features and capabilities.
Moreover, Mulesoft's community forums and support channels offer a collaborative environment where you can seek advice, troubleshoot issues, and learn from real-world case studies. This collective knowledge base can significantly enhance your problem-solving abilities and technical expertise. In essence, Mulesoft Certification not only boosts your professional credibility but also connects you to a vibrant ecosystem of resources and professionals, empowering you to excel in your career.
In the fast-paced and ever-evolving IT industry, gaining a competitive edge is crucial for career success. One effective <a href="https://dumpsarena.com/mulesoft-certification/mulesoft-certification/">Mulesoft Certification</a> way to distinguish yourself from the competition is by obtaining Mulesoft Certification. This certification serves as a powerful endorsement of your skills and expertise in API integration and management, making you a more attractive candidate to potential employers.
Achieving Mulesoft Certification demonstrates your proficiency in using the Anypoint Platform to design, implement, and manage complex integration solutions. This specialized knowledge is highly sought after as organizations increasingly rely on interconnected systems to drive their digital transformation initiatives. By mastering these skills, you position yourself as a valuable asset capable of delivering robust, scalable solutions that can enhance operational efficiency and productivity.
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| mulesoftcertification1 | |
1,916,885 | Cillian Miller: A Visionary's Path from Yale to AI Trading Pioneer | Born on September 10, 1965, in Californian, Cillian Miller grew up immersed in a business-oriented... | 0 | 2024-07-09T07:02:20 | https://dev.to/drcillian/cillian-miller-a-visionarys-path-from-yale-to-ai-trading-pioneer-78m | Born on September 10, 1965, in Californian, Cillian Miller grew up immersed in a business-oriented environment, showing a profound interest in commerce and investment from a young age. During his time at Yale University, he made his first million dollars in the stock and futures markets, gaining an early and notable reputation while many of his peers were still seeking employment. Miller chose a life of discreet investment and global learning, which earned him the nickname "Professor Miller" as the youngest member of the Ivy League to achieve such distinction.
1. Ivy League Professor:
Starting his career at Yale University, Miller demonstrated sharp insights into the stock market early on. His early success allowed him to lead a low-key investment life, traveling the world to study different business and financial models, enriching his perspective and laying the groundwork for his future endeavors.
2. Honors and Crisis:
During his travels, Miller pursued a Master's degree in Computer Science at the ETH Zurich , where he began building his own algorithmic trading models, achieving considerable success. In 2005, he was named "Emerging Market Stock Fund Manager of the Year" by an international money market magazine, and the Templeton Fund he led received the "Global Best Emerging Market Fund" award. However, the 2008 global financial crisis posed a significant challenge in his career, which he overcame with the guidance of his mentors and his resilience.
3. From Investor to Mentor:
After years of market ups and downs, Miller decided to systematize his investment philosophy and trading skills and began teaching quantitative trading. In 2011, he founded the DB Wealth Institute, committed to nurturing new talent in the financial sector. The institute quickly expanded globally, adhering to the principles of "student interests first" and "practical experience as the best teaching method."
4. Rise of a Business Empire:
From its inception, the DB Wealth Institute began developing the "Lazy Investor System." With the advancement of technology, particularly the application of artificial intelligence, Miller and his team gradually transformed quantitative trading into the realm of AI trading. In 2018, they successfully launched 'AI Financial Navigator 4.0.' To support the development of this system, the DB Wealth Institute issued the DBW token, which not only successfully raised funds but also brought more research funding and professional talent to the institution. With the success of the DBW token and AI Financial Navigator 4.0, the valuation of DB Wealth Institute skyrocketed, significantly expanding Miller’s business empire.
| drcillian | |
1,916,886 | Navigating the Challenges: Backend Developers Working with Frontend Developers | In the world of web development, backend and frontend developers often need to collaborate closely to... | 0 | 2024-07-09T07:03:21 | https://dev.to/iljubaev/navigating-the-challenges-backend-developers-working-with-frontend-developers-24jp | In the world of web development, backend and frontend developers often need to collaborate closely to create seamless, functional applications. However, this collaboration is not always smooth sailing. Here are some of the challenges backend developers face when working with frontend developers:
Communication Gaps: Backend and frontend developers often speak different technical languages. Backend developers focus on server-side logic, databases, and API endpoints, while frontend developers are concerned with user interfaces and user experience. Bridging this communication gap can be challenging, leading to misunderstandings and misaligned goals.
Different Priorities: Backend developers prioritize stability, security, and performance, while frontend developers emphasize aesthetics and usability. This difference in priorities can sometimes lead to conflicts, where one side feels their needs are not being adequately addressed.
Integration Issues: Ensuring that backend and frontend systems integrate smoothly is a common pain point. Backend developers must create APIs that are both robust and flexible enough to meet the evolving needs of frontend developers. When changes are made on one end, it can have unintended consequences on the other, requiring careful coordination and frequent updates.
Testing and Debugging: Debugging issues that span both frontend and backend can be complex and time-consuming. A bug that appears in the frontend may be rooted in the backend, and vice versa. Identifying and resolving these issues requires a deep understanding of both sides, as well as effective collaboration and communication.
Synchronizing Development Cycles: Backend and frontend teams often work on different timelines and schedules. Keeping both sides in sync, especially during rapid development phases, can be challenging. Delays on one side can halt progress on the other, leading to frustration and bottlenecks.
Performance Optimization: Backend developers must ensure that their APIs and databases are optimized for performance, but they also rely on frontend developers to write efficient code that does not overwhelm the server. Achieving this balance requires ongoing collaboration and a mutual understanding of performance constraints.
Despite these challenges, effective collaboration between backend and frontend developers is crucial for creating successful web applications. Open communication, mutual respect, and a willingness to understand each other’s perspectives can go a long way in overcoming these obstacles and achieving shared goals.
In the end, the synergy between backend and frontend developers is what makes great applications possible. Embracing these challenges and working through them together can lead to innovative solutions and a more cohesive development process. | iljubaev | |
1,916,887 | Comment utiliser le contexte de l'application | PubNub App Context est un stockage facile à utiliser, sans serveur, pour les informations sur les utilisateurs, les canaux et les membres. | 0 | 2024-07-09T07:04:35 | https://dev.to/pubnub-fr/comment-utiliser-le-contexte-de-lapplication-36od | PubNub [App Context](https://www.pubnub.com/products/app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) simplifie le développement de fonctionnalités complexes en temps réel en fournissant un mécanisme de stockage sans serveur pour les informations sur les utilisateurs, les canaux et les membres. App Context déclenche des événements chaque fois que les données changent, ce qui permet à vos applications de se mettre à jour en temps réel et les données stockées peuvent être utilisées dans [Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Functions](https://www.pubnub.com/products/functions/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) et d'autres services PubNub pour prendre des décisions plus intelligentes. Vous pouvez également gérer ces données par le biais d'une interface intuitive, sans code, avec [BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
Qu'est-ce que l'App Context ?
-----------------------------
[App Con](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) text (anciennement connu sous le nom d'Objects) vous permet de :
- Donner un sens aux utilisateurs et aux canaux de votre application, ainsi qu'aux relations entre eux.
- Stocker les métadonnées de toutes vos entités sur le serveur, ce qui simplifie la fourniture d'une source globale de vérité pour vos clients. Notez qu'un utilisateur ne doit pas nécessairement représenter un être humain, et qu'il est courant de stocker le statut de l'appareil dans l'objet utilisateur à la place.
- Recevoir des événements instantanés en temps réel lorsque les valeurs d'un objet changent.
Bien que n'importe quelle application puisse utiliser App Context, il est particulièrement populaire auprès des développeurs qui créent des [solutions de chat](https://www.pubnub.com/solutions/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
App Context fournit un ensemble de champs suggérés pour vos [utilisateurs](https://www.pubnub.com/docs/general/metadata/users-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) et vos [canaux](https://www.pubnub.com/docs/general/metadata/channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), ainsi que des champs suggérés pour les [adhésions](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) entre eux. La plupart de ces champs sont facultatifs, vous pouvez donc choisir les champs que vous remplissez, et vous pouvez également fournir vos propres champs personnalisés.
Cas d'utilisation d'App Context
-------------------------------
Comme nous l'avons mentionné, App Context est particulièrement populaire auprès des développeurs qui créent des solutions de chat, mais il peut être utilisé dans une grande variété de cas :
- **Chat :** Stockez les informations sur l'utilisateur (nom, photo de profil, statut "en vacances", titre du poste), les informations sur le canal (icône, description, audience), les rôles des utilisateurs et gardez une trace du dernier message lu par canal et par utilisateur.
- **Sports, médias et divertissements :** Vote et sondage en direct, jeu-questionnaire en direct, enchères en temps réel, incrustations CTA (appel à l'action) pour les marchandises ou les promotions.
- **Jeux :** Statistiques des joueurs en temps réel, y compris le niveau du joueur, les parties gagnées, les badges ; suivi et gestion des classements.
- **Plus :** Statut de l'utilisateur absent/actif, score de confiance de l'utilisateur pour la détection des fraudes, suivi de la localisation de l'utilisateur, états des appareils IoT tels que le niveau de la batterie ou la dernière lecture du capteur.
Comment activer l'App Context
-----------------------------
Le contexte applicatif peut être activé comme suit :
1. Connectez-vous au [portail d'administration](https://admin.pubnub.com/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)
2. Cliquez sur l'onglet "Apps" sur le côté gauche du portail.
3. Cliquez sur une application. Vous serez amené à la page des ensembles de clés pour cette application.
4. Si vous ne l'avez pas encore fait, créez un nouvel ensemble de clés en cliquant sur le bouton "Créer un nouvel ensemble de clés". Vous accéderez à la page de configuration de cet ensemble de clés.
5. Activez App Context en cliquant sur le curseur.
6. Le paramètre " **Bucket Region** " correspond à la région dans laquelle vos données sont stockées. Veuillez noter que la région ne peut pas être modifiée après avoir enregistré les changements apportés à l'ensemble de clés.
7. Si les paramètres **User Metadata Events** et **Channel Metadata Events** sont activés, les événements relatifs à l'utilisateur et au canal sont déclenchés lorsque des données sont définies ou supprimées dans la base de données, comme nous le verrons plus loin.
8. Lorsque le paramètre Événements relatifs aux **membres** est activé, les événements relatifs aux membres sont déclenchés lorsque des membres sont ajoutés, mis à jour ou supprimés, comme nous le verrons plus loin.
9. Les autres options n'entrent pas dans le cadre de cet article, mais vous pouvez vous référer à la [documentation App Context](https://www.pubnub.com/docs/general/metadata/basics#configuration?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour plus d'informations.
10. Cliquez sur **Enregistrer les modifications** pour enregistrer ces changements.
Contexte applicatif de l'utilisateur
------------------------------------
Lorsqu'un nouvel utilisateur est enrôlé dans votre application, peut-être par le biais d'un fournisseur d'identité externe, vous devez avoir un moyen d'identifier cet utilisateur de manière unique pour PubNub ; c'est l'[ID utilisateur](https://www.pubnub.com/docs/general/setup/users-and-devices?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) que le client de votre utilisateur utilisera pour initialiser le SDK PubNub. L'ID utilisateur PubNub peut ne pas être le même que l'ID que vous utilisez ailleurs dans votre solution pour identifier ce même utilisateur, nous recommandons donc de garder une trace de cela dans le champ 'External ID'.
Le nom d'utilisateur, l'email et l'URL du profil ne nécessitent pas d'explication, mais l'avantage de les conserver dans App Context signifie que si un utilisateur modifie l'un de ces champs, les changements peuvent être propagés à l'échelle à tous les clients qui écoutent en utilisant les événements App Context, qui sont pris en charge par tous nos SDKs.
### Comment créer une représentation d'utilisateur dans App Context ?
Il y a deux façons de créer un utilisateur dans App Context.
1. Les utilisateurs peuvent être créés et gérés en utilisant [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), qui se trouve dans le portail d'administration de PubNub. Cela ne nécessite aucun code, et le processus est expliqué avec des exemples dans l'article séparé : [Comment gérer les utilisateurs et les canaux avec BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)
2. Des API sont exposées à travers chacun de nos SDK pour créer des utilisateurs. Si vous utilisez notre SDK [de](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) chat, ce SDK gère le contexte de l'application pour vous dans les coulisses ; par exemple, la méthode[" createUser()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/users/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)" du SDK de chat appellera le [setUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) de JavaScript sous les couvertures pour créer un utilisateur. Des API dédiées sont fournies pour modifier les données de votre contexte d'application si vous utilisez un SDK autre que le SDK de chat. J'ai déjà mentionné l'API JavaScript [setUIDMetadata](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), mais il existe des équivalents pour toutes nos API, y compris [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), etc.
Contexte de l'application du canal
----------------------------------
PubNub crée automatiquement des canaux chaque fois qu'un utilisateur s'y abonne ou y publie, mais les canaux représentent probablement quelque chose de significatif pour votre application, par exemple, dans une application de chat, vous pouvez avoir un chat de groupe qui utilise un canal pour communiquer ou un événement en direct peut utiliser un canal dédié pour gérer les sondages.
En spécifiant un contexte d'application pour un canal, vous stockez et mettez à jour toutes les métadonnées souhaitées relatives à ce canal, ces mises à jour étant éventuellement propagées à tous les clients intéressés. Vous pouvez donner un nom à un canal, par exemple "Chat entre l'utilisateur A et l'utilisateur B", et il se peut que le canal soit lié à un stockage de documents, qui pourrait être suivi dans un champ "URI" personnalisé.
### Comment créer une représentation de canal dans App Context ?
Comme pour les utilisateurs, il y a deux façons de créer un canal dans App Context.
1. Les canaux peuvent être créés et gérés en utilisant [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr). Cela ne nécessite aucun code, et le processus est expliqué avec des exemples dans l'article séparé : [Comment gérer les utilisateurs et les canaux avec BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)
2. Des API sont exposées à travers chacun de nos SDK pour créer des canaux. Si vous utilisez notre [SDK de chat](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), celui-ci gère le contexte de l'application pour vous dans les coulisses ; par exemple, la famille de méthodes["Créer un](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) canal" appellera JavaScript's [setChannelMetadata()](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) sous les couvertures. Si vous utilisez un SDK autre que le SDK de chat, des API dédiées sont fournies pour modifier vos données de contexte d'application, y compris [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), etc.
Contexte applicatif de l'adhésion
---------------------------------
Après avoir défini le contexte applicatif pour les utilisateurs et les canaux, nous pouvons maintenant définir la relation entre les deux en précisant si les utilisateurs sont ["membres"](https://www.pubnub.com/docs/general/metadata/membership-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) d'un canal.
Lorsqu'un utilisateur rejoint un canal, il peut recevoir des mises à jour sur tous les autres membres de ce même canal ; il peut être notifié lorsque des utilisateurs `rejoignent` ou `quittent le` canal, ainsi que lorsque le contexte applicatif de cet utilisateur est mis à jour (par exemple, lorsqu'il met à jour son nom).
Il s'agit d**'un mécanisme très puissant qui offre une grande valeur ajoutée**, en particulier pour les développeurs d'applications de chat. Si vous n'utilisiez pas App Context, vous devriez suivre vous-même chaque utilisateur, les canaux dont il est membre et notifier tous les autres membres du même canal lorsque l'utilisateur rejoint ou quitte le canal. Ce défi n'est pas linéaire, donc plus vous avez d'utilisateurs dans votre solution, plus il devient difficile pour vous d'essayer de gérer toutes ces informations de manière centralisée.
En utilisant App Context, vos clients de chat reçoivent toutes les informations dont ils ont besoin pour maintenir leur état interne, et vous avez également un contrôle total sur ces données avec le PubNub [Access Manager](https://www.pubnub.com/docs/general/security/access-control?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour empêcher tout accès non autorisé.
### Comment créer une adhésion ?
Comme pour les utilisateurs et les canaux, il y a deux façons de créer une adhésion.
1. Les membres peuvent être créés et gérés en utilisant [BizOps Workspace](https://www.pubnub.com/docs/bizops-workspace/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) sans écrire de code. Veuillez consulter la section [Gérer les membres de](https://www.pubnub.com/docs/bizops-workspace/channel-management#manage-membership?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) notre documentation pour plus de détails.
2. Des API sont exposées à travers chacun de nos SDK pour créer des canaux. Si vous utilisez notre [SDK de chat](https://www.pubnub.com/docs/chat/chat-sdk/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), il gère le contexte de l'application pour vous dans les coulisses ; par exemple, la famille de méthodes["Créer un](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/create?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) canal" appellera JavaScript's [setMemberships](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) sous les couvertures. Si vous utilisez un SDK autre que le SDK de chat, des API dédiées sont fournies pour modifier vos données de contexte d'application, y compris [JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/objects#set-channel-memberships?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Java](https://www.pubnub.com/docs/sdks/java/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/objects?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), etc.
Réception d'événements en temps réel lorsque le contexte applicatif change
--------------------------------------------------------------------------
Lorsque les données du contexte d'application changent, votre application reçoit un événement qui vous informe en temps réel de ce qui a changé. Cela vous permet de créer des applications réactives sans avoir à interroger le serveur pour obtenir des mises à jour.
### Réception des changements de contexte d'application à travers le SDK PubNub (à l'exception du SDK Chat)
Tous les SDKs PubNub exposent des "Event Listeners", et c'est à travers ces listeners que vous pouvez écouter les `événements d'objets`, qui sont déclenchés chaque fois que les données de l'App Context changent.
Notez qu'il y a une légère nuance ici, car, au moment de la rédaction, certains de nos SDKs supportent un nouveau format pour les "event listeners", comme expliqué dans [ce blog à propos des mises à jour du moteur d'événements et des event listeners](https://www.pubnub.com/blog/updates-to-the-event-engine-and-event-listeners/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr). Quel que soit le format de l'écouteur d'événement, le principe reste le même : votre application doit s'enregistrer pour recevoir les événements du contexte de l'application par l'intermédiaire d'un écouteur fourni par le SDK.
Comme indiqué dans la [documentation du SDK JavaScript](https://www.pubnub.com/docs/sdks/javascript/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), l'enregistrement pour les événements du contexte applicatif se présente comme suit :
```js
const channel = pubnub.channel('channel_1');
const subscription = channel.subscription();
subscription.onObjects =
(objectsEvent) => { console.log("Objects event: ", objectsEvent); };
```
La documentation décrivant comment s'enregistrer pour les événements de contexte d'application dans d'autres langages peut être trouvée dans les endroits suivants : [Java](https://www.pubnub.com/docs/sdks/java/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Swift](https://www.pubnub.com/docs/sdks/swift/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Kotlin](https://www.pubnub.com/docs/sdks/kotlin/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [Python](https://www.pubnub.com/docs/sdks/python/api-reference/publish-and-subscribe#add-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) (Notez que Python appelle les événements "métadonnées", alors que les autres SDKs se réfèrent aux événements en tant qu'"objets"), [Unity](https://www.pubnub.com/docs/sdks/unity/api-reference/configuration#event-listeners?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), etc.
Pour un exemple pratique et une démonstration interactive, veuillez vous référer à l'article [Comment gérer les utilisateurs et les canaux avec BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-7?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
### Recevoir des changements de contexte d'application à travers le PubNub Chat SDK
Le PubNub Chat SDK exposera les événements de contexte d'application par le biais de la famille d'API [streamUpdates()](https://www.pubnub.com/docs/chat/chat-sdk/build/features/channels/membership#get-updates?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
Quelques exemples, tirés de l'[application de démonstration du SDK Chat](https://github.com/PubNubDevelopers/Chat-SDK-Demo-Web) pour le web :
```js
// Detect changes to the current User
useEffect(() => {
return currentUser.streamUpdates(updatedUser => {
if (updatedUser.name) {
setName(updatedUser.name)
}
if (updatedUser.profileUrl) {
setProfileUrl(updatedUser.profileUrl)
}
})
}, [currentUser])
```
```js
// Detect changes to an array of Channels
useEffect(() => {
if (chat && privateGroups) {
return Channel.streamUpdatesOn(privateGroups, channels => {
// The array of channels, privateGroups, has been updated
}
}, [chat, privateGroups])
```
Pour un exemple de travail basé sur notre exemple plus simple pour le SDK Chat, veuillez vous référer à l'article [Comment gérer les utilisateurs et les canaux avec BizOps Workspace](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/#h-10?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
App Context et PubNub Illuminate
--------------------------------
[PubNub Illuminate](https://www.pubnub.com/products/illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) est un produit d'analyse et de prise de décision en temps réel qui peut être personnalisé en fonction du cas d'utilisation unique d'une organisation. Le produit est conçu pour les gestionnaires de produits et les analystes, leur permettant de faire ce qui suit :
- Définir des mesures agrégées personnalisées en temps réel.
- Configurer et déployer des règles de décision avec des conditions et des actions.
- Visualiser immédiatement les mesures suivies, les actions exécutées et leurs résultats.
Vous pouvez faire tout cela en temps réel sans détourner votre équipe d'ingénieurs de ses projets en cours.
Une explication complète de ce qu'est PubNub Illuminte, et comment il peut vous fournir des informations immédiatement exploitables sur vos données, sort du cadre de cet article, mais nous vous invitons à vous référer à notre [documentation](https://www.pubnub.com/docs/illuminate/basics?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) et à notre [aperçu du produit](https://www.pubnub.com/blog/real-time-decisioning-with-illuminate/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour plus d'informations.
En résumé : vous définissez les **métriques** liées à votre application, c'est-à-dire les éléments que vous souhaitez mesurer. Par exemple, dans un scénario de suivi des actifs, il peut s'agir du nombre d'heures écoulées depuis la prise de commande. Lorsqu'une [**condition**](https://www.pubnub.com/docs/illuminate/decisions/basics#conditions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) est remplie pour cette mesure, par exemple si le nombre d'heures écoulées depuis la commande dépasse une certaine valeur, vous pouvez prendre des **mesures**.
L'[action](https://www.pubnub.com/docs/illuminate/decisions/basics#actions?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) à entreprendre est flexible, mais trois des actions possibles sont liées au contexte de l'application :
### Mettre à jour l'utilisateur avec PubNub Illuminate
Permet de définir des métadonnées utilisateur prédéfinies ou personnalisées. La capture d'écran ci-dessous montre que l'utilisateur avec l'ID 123 a son statut défini à la valeur statique "Nouveau statut", mais il est également possible de définir une valeur dynamique basée sur la **condition** qui a déclenché l'**action**.
### Mise à jour du canal avec PubNub Illuminate
Permet de définir des métadonnées prédéfinies ou personnalisées pour le canal. La capture d'écran ci-dessous montre que le canal avec l'ID 123 a son nom défini à la valeur statique 'New Name', mais il est également possible de définir une valeur dynamique basée sur la **condition** qui a déclenché l'**action**.
### Mettre à jour les adhésions avec PubNub Illuminate
Permet de définir des métadonnées d'adhésion prédéfinies ou personnalisées. La capture d'écran ci-dessous montre l'appartenance de l'ID utilisateur 123 au canal 123 dont l'état est défini sur la valeur statique "Nouvel état". Il est également possible de définir une valeur dynamique basée sur la **condition** qui a déclenché l'**action**.
Contexte de l'application et fonctions PubNub
---------------------------------------------
PubNub fournit des fonctions pour capturer les événements qui se produisent sur la plateforme PubNub. Les fonctions vous permettent d'écrire du code ou de tirer parti des intégrations existantes pour transformer, réacheminer, augmenter, filtrer et même agréger des données. Veuillez consulter la [documentation sur les fonctions](https://www.pubnub.com/docs/serverless/functions/overview?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour un aperçu plus complet des fonctions PubNub, mais cet article examinera comment les fonctions PubNub sont liées à l'App Context.
### Mise à jour de l'App Context à partir de PubNub Functions
L'environnement dans lequel les fonctions s'exécutent a accès au [module PubNub](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr); ce module a un accès complet à l'App Context sur votre clavier, et quelques exemples tirés de la documentation sont donnés ci-dessous. :
Exemple d'[obtention des métadonnées du contexte applicatif de l'utilisateur (Get User App Context Metadata](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#get-user-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr))
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.getUUIDMetadata({
uuid: 'my-uuid',
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Fetched UUID metadata successfully.');
})
.catch((err) => {
console.log(err);
return event.abort('Failed to fetch UUID metadata');
});
};
```
Exemple de [définition des métadonnées du contexte applicatif d'un canal](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module#set-channel-metadata?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)
```js
export default (event) => {
const pubnub = require('pubnub');
return pubnub.objects.setChannelMetadata({
channel: 'my-channel',
data: {
name: 'channel-name',
description: 'What a great channel',
custom: {
foo: 'bar',
},
},
include: {
customFields: false,
},
})
.then((resp) => {
console.log(resp);
return event.ok('Set channel metadata successfully.');
})
.catch((error) => {
console.log(err);
return event.abort('Failed to set channel metadata.');
});
};
```
Pour un ensemble complet d'exemples de code, veuillez vous référer à la documentation du [module PubNub](https://www.pubnub.com/docs/serverless/functions/functions-apis/pubnub-module?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
### Déclenchement d'une fonction PubNub lors d'un changement de contexte applicatif
Il existe de nombreux types d'événements qui peuvent déclencher une fonction, comme indiqué dans la [documentation sur les types d'événements](https://www.pubnub.com/docs/serverless/functions/overview#event-types?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr). Ils permettent notamment de détecter l'envoi de messages et de signaux, de déclencher des fonctions après des événements de présence et d'exécuter des fonctions à un intervalle spécifié ou à la demande. Au moment de la rédaction de ce document, il **n'est pas** possible d'exécuter des fonctions après des mises à jour du contexte d'application, mais si votre application en a besoin, veuillez contacter notre [équipe d'assistance](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), qui se fera un plaisir d'étudier vos cas d'utilisation.
Prochaines étapes
-----------------
Pour voir App Context en action, vous pouvez consulter notre [démo Chat](https://www.pubnub.com/demos/chat/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) qui utilise App Context avec notre SDK Chat pour montrer ce à quoi une application de chat pourrait ressembler avec un stockage sans serveur. La démo Chat vous permet de définir les métadonnées de l'utilisateur et du canal et de voir ces changements se propager aux autres auditeurs et membres en temps réel.
Consultez également notre série connexe en 3 parties sur l'espace de travail BizOps qui dépend de l'App Context et couvre comment : [Gérer les utilisateurs et les canaux](https://www.pubnub.com/how-to/manage-users-and-channels-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr), [surveiller et modérer les](https://www.pubnub.com/how-to/monitor-and-moderate-conversations-with-bizops-workspace/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) conversations, et [modérer le chat en toute sécurité](https://www.pubnub.com/how-to/securely-moderate-chat-and-users/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr).
Enfin, n'hésitez pas à contacter l'équipe DevRel à l'adresse [devrel@pubnub.com](mailto:devrel@pubnub.com) ou à contacter notre équipe de [support](https://support.pubnub.com/hc/en-us?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour obtenir de l'aide sur n'importe quel aspect de votre développement PubNub.
Comment PubNub peut-il vous aider ?
===================================
Cet article a été publié à l'origine sur [PubNub.com](https://www.pubnub.com/how-to/use-app-context/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr)
Notre plateforme aide les développeurs à construire, fournir et gérer l'interactivité en temps réel pour les applications web, les applications mobiles et les appareils IoT.
La base de notre plateforme est le réseau de messagerie en temps réel le plus grand et le plus évolutif de l'industrie. Avec plus de 15 points de présence dans le monde, 800 millions d'utilisateurs actifs mensuels et une fiabilité de 99,999 %, vous n'aurez jamais à vous soucier des pannes, des limites de concurrence ou des problèmes de latence causés par les pics de trafic.
Découvrez PubNub
----------------
Découvrez le [Live Tour](https://www.pubnub.com/tour/introduction/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour comprendre les concepts essentiels de chaque application alimentée par PubNub en moins de 5 minutes.
S'installer
-----------
Créez un [compte PubNub](https://admin.pubnub.com/signup/?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) pour un accès immédiat et gratuit aux clés PubNub.
Commencer
---------
La [documentation PubNub](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr) vous permettra de démarrer, quel que soit votre cas d'utilisation ou votre [SDK](https://www.pubnub.com/docs?utm_source=devto&utm_medium=syndication&utm_campaign=off_domain&utm_content=fr). | pubnubdevrel | |
1,916,888 | Link Network + Zero-Knowledge Proofs: Protecting User Privacy and Security | As blockchain technology develops, privacy protection has become a highly focused issue. The... | 0 | 2024-07-09T07:05:10 | https://dev.to/linknetwork/link-network-zero-knowledge-proofs-protecting-user-privacy-and-security-3alb |
As blockchain technology develops, privacy protection has become a highly focused issue. The openness and traceability of traditional blockchains lead to the risk of personal information and transaction data leakage, posing a serious threat to user privacy. In this context, Link Network, as an emerging blockchain, has the capability to address privacy protection issues.
**Overview of Blockchain Privacy Protection**
One of the core features of blockchain technology is its openness and transparency. However, this also presents challenges to user privacy. In traditional blockchain systems, all transaction data is publicly recorded on the blockchain, allowing anyone to query and analyze these data, potentially exposing sensitive information such as identity, transaction behavior, and financial status. Additionally, since transaction records on the blockchain are immutable and permanently stored, once privacy information is leaked, it cannot be revoked or modified, leading to irreparable losses for the user. Therefore, resolving blockchain privacy protection issues is imperative, and finding a solution that can protect user privacy while ensuring transaction security is crucial.
**Privacy Protection Technology in Link Network**
Link Network employs advanced privacy protection technologies, among which Zero-Knowledge Proof (ZKP) is the most notable. ZKP is a cryptographic primitive that can prove a statement is true without revealing any other information about the statement. In Link Network, zero-knowledge proofs are used to verify the validity of transactions without having to disclose the specific content of the transactions. Even though the transaction records are public on the blockchain, users’ privacy information remains protected. Specifically, when users initiate a transaction, they can provide a zero-knowledge proof to demonstrate the legality of the transaction without having to reveal specific details such as the transaction amount or the parties involved. Thus, even if someone accesses the blockchain’s transaction records, they cannot obtain any information about the participants or the content of the transactions.
Additionally, Link Network also employs a technology called Ring Signature to further protect user privacy. Ring Signature is an anonymous signing scheme that allows a signer to sign a message anonymously within a group of possible signers. In Link Network, Ring Signatures are used to obscure the sender of a transaction, making it impossible to determine the real initiator, thereby enhancing user anonymity and privacy protection.
**Practical Application of Privacy Protection Technologies**
Privacy protection technologies are extensively applied in Link Network, providing a safe and reliable transaction environment for users. First, users conducting transactions on the Link Network blockchain can choose whether to use privacy protection technologies. If users wish to protect their privacy, they can opt to use zero-knowledge proofs to conceal the specifics of their transactions, thus preventing their transaction records from being analyzed and tracked. This grants users the autonomy to decide whether to use privacy protection technologies based on their own privacy needs.
Secondly, Link Network’s privacy protection technologies are not only suitable for regular users but can also be applied to enterprise and institutional-level transactions. Enterprises often place a higher emphasis on privacy and security during large transactions, and the zero-knowledge proof technology provided by Link Network can effectively protect the privacy of these transactions, preventing competitors and hackers from accessing sensitive information. This provides enterprises with a secure and reliable blockchain platform, enabling them to conduct various transaction activities under the premise of protecting privacy, thus fostering cooperation and development among businesses.
Additionally, Link Network’s privacy protection technologies can also be applied in the financial sector, offering users more secure and private digital asset transaction services. In traditional financial systems, user transaction information often needs to be processed and verified by banks or third-party payment institutions, posing risks of information leakage and intermediaries. On Link Network, users can conduct peer-to-peer digital asset transactions directly using zero-knowledge proof technology, thereby avoiding information leaks and intermediary risks, and enhancing the security and privacy of transactions.
**Future Trends in Privacy Protection Technology**
**Research and Application of New Privacy Protection Technologies**
As technology continues to advance, new privacy protection technologies are emerging. In the future, Link Network will increase its research and application of new privacy protection technologies, continuously introducing more advanced privacy protection methods to further enhance transaction security and privacy. For instance, privacy protection schemes such as homomorphic encryption and multi-party computation can further enhance the security of transaction data, providing users with a more private transaction environment.
**Integration of Privacy Protection Technology with Legal Regulations**
As digital asset transactions increase and blockchain technology continues to evolve, the relationship between privacy protection technology and legal regulations is becoming increasingly tight. Link Network will strengthen cooperation with regulatory authorities, combining privacy protection technology with legal regulations to establish a comprehensive digital asset transaction regulatory framework, protecting users’ legal rights and interests, preventing fraud and illegal activities, and promoting the healthy development of the digital asset trading market.
**Combining Privacy Protection Technology with Artificial Intelligence**
Link Network may introduce artificial intelligence technology to analyze user behavior and transaction data, automatically identify and prevent potential security risks, further enhancing the security and privacy of transactions, and providing users with more intelligent and personalized privacy protection services.
**User Education and Awareness Raising**
Beyond technological development, user education and awareness raising are also important directions for the development of privacy protection technology. Link Network will intensify its efforts to promote and educate about user privacy protection awareness, helping users better understand the importance and application methods of privacy protection technology, enhancing their privacy awareness in digital asset transactions, and together creating a secure and reliable digital asset trading environment.
**Summary**
Through the analysis of Link Network’s core technologies, scalability, security, and cross-chain interoperability, we can clearly see that Link Network is continuously innovating and breaking new ground, committed to providing a safer, more efficient, and private digital asset trading environment.
As blockchain technology continues to evolve and application scenarios expand, privacy protection technology will play an increasingly important role in the future. Link Network, as a technology innovation-driven blockchain project, will continue to devote itself to the research and application of privacy protection technology, continuously driving the development of blockchain technology. We also look forward to collaborating with more blockchain projects and ecosystems, jointly exploring innovative applications of blockchain and privacy protection technologies, and injecting new vitality and momentum into the development of the digital asset trading
| linknetwork | |
1,916,889 | What is Cryptocurrency Mining? | Cryptocurrency Mining uses cryptocurrency to verify and create new money. Blockchain transactions are... | 0 | 2024-07-09T07:05:15 | https://dev.to/lillywilson/what-is-cryptocurrency-mining-25nf | crypto, cryptocurrency, bitcoin, asic | Cryptocurrency Mining uses cryptocurrency to verify and create new money. Blockchain transactions are verified and secured by decentralized computer networks around the globe.
The distributed ledgers record all **[cryptocurrency ](https://asicmarketplace.com/blog/how-to-calculate-profit-in-crypto-mining/)**transactions. The distributed ledgers are immutable, so there is no risk of the network or the trades being compromised. Miners receive new coins as a reward for completing this mining process.
The mining of cryptocurrency is essential to the security and circulation of new coins. It authenticates and secures the blockchain unlike banks. This allows cryptocurrencies to function as a peer-topeer, decentralized network, without external supervision. It also encourages miners, who can add more computer power to the blockchain.
| lillywilson |
1,916,890 | Everest Three Pass Trek Guide: The Ultimate Himalayan Adventure | For avid trekkers seeking a challenge beyond the conventional Everest Base Camp route, the Everest... | 0 | 2024-07-09T07:06:47 | https://dev.to/travel_trek_718/everest-three-pass-trek-guide-the-ultimate-himalayan-adventure-3l4h | webdev, javascript, beginners, programming | For avid trekkers seeking a challenge beyond the conventional Everest Base Camp route, the **_[Everest Three Pass Trek](https://enjoynepaltreks.com/blog/everest-three3-passes-trek-guide/)_** offers an unparalleled adventure. This demanding trek traverses three high mountain passes—Kongma La, Cho La, and Renjo La—providing breathtaking views, diverse landscapes, and a deep immersion into the Sherpa culture. In this comprehensive guide, we’ll explore everything you need to know about the Everest Three Pass Trek, from preparation and logistics to highlights and tips for a successful journey.
Introduction to the Everest Three Pass Trek
The Everest Three Pass Trek is a circuit that encompasses the best of the Khumbu region. It combines the iconic Everest Base Camp with the thrill of crossing three high-altitude passes, making it one of the most challenging and rewarding treks in Nepal. With elevations reaching up to 5,545 meters (18,192 feet) at Kala Patthar and passes over 5,300 meters (17,388 feet), this trek is designed for experienced trekkers looking for a unique and exhilarating adventure.
Highlights of the Trek
Crossing Three High Passes
The Kongma La (5,535m), Cho La (5,420m), and Renjo La (5,360m) passes offer stunning panoramas of the Everest, Lhotse, Nuptse, Makalu, and Cho Oyu ranges. Each pass presents a distinct challenge and a sense of accomplishment.
Everest Base Camp and Kala Patthar
Reaching Everest Base Camp (5,364m) is a bucket-list achievement, while the sunrise view from Kala Patthar (5,545m) provides an unforgettable close-up of Mount Everest.
Gokyo Lakes
The turquoise Gokyo Lakes, nestled in the Gokyo Valley, are a serene and scenic highlight. The climb to Gokyo Ri (5,357m) offers spectacular vistas of the Himalayas.
Sherpa Culture and Villages
The trek passes through traditional Sherpa villages like Namche Bazaar, Tengboche, and Thame, offering insights into the local culture, traditions, and hospitality.
Diverse Landscapes
From lush rhododendron forests and glacial moraines to high-altitude deserts and alpine meadows, the trek showcases a variety of stunning landscapes.
Preparing for the Trek
Physical Fitness
Due to its strenuous nature, the Everest Three Pass Trek requires excellent physical fitness. Prepare with cardiovascular exercises, strength training, and long hikes with a weighted backpack.
Acclimatization
Proper acclimatization is crucial to prevent altitude sickness. The trek itinerary includes several acclimatization days to allow your body to adjust to the high altitudes.
Permits
Trekkers need a Sagarmatha National Park Permit and a Khumbu Pasang Lhamu Rural Municipality Permit. These can be obtained in Kathmandu or at entry points to the park.
Packing Essentials
Key items include high-quality trekking boots, layered clothing, a warm sleeping bag, trekking poles, a headlamp, a first aid kit, and altitude sickness medication. Ensure your gear is suitable for cold and variable weather conditions.
The Trekking Route
Lukla to Namche Bazaar
The journey begins with a thrilling flight to Lukla, followed by a trek through Phakding to the bustling Sherpa town of Namche Bazaar.
Namche Bazaar to Tengboche
Acclimatize in Namche before heading to the spiritual heart of the Khumbu region, Tengboche, home to the famous Tengboche Monastery.
Kongma La Pass
The first challenge is Kongma La, leading to the Everest Base Camp area via Lobuche and Gorak Shep.
Everest Base Camp and Kala Patthar
Reach the iconic Everest Base Camp and witness the majestic sunrise from Kala Patthar.
Cho La Pass
Cross the Cho La Pass to enter the stunning Gokyo Valley, with its mesmerizing lakes and the climb to Gokyo Ri.
Renjo La Pass
The final pass, Renjo La, offers breathtaking views before descending to Thame and returning to Namche Bazaar.
Tips for a Successful Trek
Hire a Guide and Porter
A local guide provides valuable knowledge, navigation, and cultural insights, while a porter can help carry your load, making the trek more manageable.
Stay Hydrated and Eat Well
Proper hydration and nutrition are vital for maintaining energy levels and acclimatizing.
Take it Slow
Pace yourself to allow your body to adjust to the altitude and avoid rushing the trek.
Respect Local Culture
Engage with local customs and traditions, and show respect to the Sherpa community and their environment.
Conclusion: An Unforgettable Himalayan Experience
The Everest Three Pass Trek is not just a trek; it’s an adventure of a lifetime. It challenges your physical limits, rewards you with some of the most breathtaking views on the planet, and immerses you in the rich culture of the Khumbu region. With proper preparation and the right mindset, this trek can become one of the most memorable experiences you’ll ever undertake. Embrace the challenge, soak in the beauty, and let the Himalayas leave an indelible mark on your soul. | travel_trek_718 |
1,916,891 | How does Nostra stay ahead of gaming trends while offering a diverse selection of games that free to play no download required? | Nostra remains at the forefront of gaming trends by continuously expanding its collection of Android... | 0 | 2024-07-09T07:09:22 | https://dev.to/claywinston/how-does-nostra-stay-ahead-of-gaming-trends-while-offering-a-diverse-selection-of-games-that-free-to-play-no-download-required-c78 | gamedev, mobilegame, androidgame, nostragames | [**Nostra**](https://nostra.glance.com/?utm_source=referral&utm_medium=Quora&utm_campaign=Nostra) remains at the forefront of gaming trends by continuously expanding its collection of [**Android games**](https://medium.com/@adreeshelk/creating-vivid-ongoing-interaction-encounters-with-nostra-games-d12e7e8593ba?utm_source=referral&utm_medium=Medium&utm_campaign=Nostra), focusing on free online experiences that require no download. Our platform is designed to adapt to evolving gaming trends, ensuring that players have access to the latest and most engaging titles. By offering a curated selection of free [**Android games**](https://nostra.gg/articles/lock-screen-new-opportunity.html?utm_source=referral&utm_medium=article&utm_campaign=Nostra) that can be played instantly, Nostra caters to the growing demand for convenient and accessible gaming experiences. We closely monitor gaming trends to identify emerging genres, mechanics, and player preferences, allowing us to provide a diverse range of games that resonate with our audience. With Nostra, players can enjoy a constantly evolving library of Android games that reflect the latest gaming trends, ensuring a dynamic and engaging gaming experience for all. | claywinston |
1,916,892 | The Future of Copper Clad Laminates in Automotive Electronics | The report "Copper Clad Laminates Market by Application (Computers, Communication Systems, Consumer... | 0 | 2024-07-09T07:10:43 | https://dev.to/aryanbo91040102/the-future-of-copper-clad-laminates-in-automotive-electronics-1o2l | news | The report "Copper Clad Laminates Market by Application (Computers, Communication Systems, Consumer Appliances, Vehicle electronics, Healthcare Devices), Product Type (Rigid, Flexible), Reinforcement Material Type, Resin Type, Region - Global Forecast to 2027", size is estimated to be USD 16.4 billion in 2022 and is projected to reach USD 21.6 billion in 2027, at a CAGR of 5.7%.
The main forces behind the growth of the copper clad laminate market are growth in 5G infrastructure and the increasing use of PCBs across various applications. Rising raw material prices is a major market restraint. The technological shift in automotive sector to electric vehicles is a major opportunity in the copper clad laminate market. The biggest difficulties or challenge is the effect of supply chain disruption due to global chip shortage.
Browse in-depth TOC on "Copper Clad Laminates Market"
110 – Tables
39 – Figures
177 – Pages
Download PDF Brochure: https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=100748480
By type, Rigid copper clad laminates accounted for the largest share.
Copper clad laminate or CCL is a type of material used in PCBs. It is made using reinforcement materials like glass fiber, paper, or other materials, impregnated with resin adhesive like epoxy, phenolic etc. and covered with copper foil on either side or one side. The Copper clad laminates Market has been segmented based on its type i.e., rigid copper clad laminate and flexible copper laminate. The rigid laminates are used in several end-use applications including consumer electronics, communications, automotive, and aerospace industries. The rigid copper clad laminates dominate the market owing to its wide application base, enhanced properties, strength and durability.
By reinforcement material, glass fiber accounted for the largest market share.
The Copper clad laminates market has been segmented based on the reinforcement material. The market is segmented as fiber glass, paper base and compound materials as per the reinforcement material used in the copper clad laminates. The fiberglass reinforcement material segment of the market dominates the market. The high market share is mainly driven by its application in different electronic products as it provides better electronic performance and cost-effectiveness.
By resin type, epoxy accounted for the largest market share.
The Copper clad laminates market has been segmented based on the resins used in the copper clad laminates i.e., epoxy, phenolic, polyimide and others. Epoxy is the most common resin used in copper clad laminates. Due to a wide application base like home appliances, IT peripherals, consumer electronics, and electronic communication systems, it dominates the market. Paper-phenolic copper clad laminates are cost effective. It is used in IT peripherals, communication systems and consumer electronics.
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By Application, communication systems accounted for the largest share in 2021.
Copper clad laminates can be used in a variety of applications like computers, communication systems, consumer appliances, vehicle electronics, healthcare devices and defense technology. According to projections, the communication systems will be the biggest market for copper clad laminates. The market for 5G infrastructure is expanding as a result of rising acceptance of virtual networking in the telecom industry, lower latency in 5G, and an increase in mobile traffic data. High consumer demand and industrial automation generates increased demands for effective communication systems which drives the market for copper clad laminates.
APAC is projected to account for the largest share of copper clad laminates in 2021
The largest market for copper clad laminates is anticipated to be in APAC over the projected period. China, Taiwan, South Korea and Japan are the main contributors in the same. The growth is led by rapid increasing demand for copper clad laminates from various industries, including computers, communication systems, consumer appliances, vehicle electronics, healthcare devices etc. The investments in 5G infrastructure and technological shift in automobile sector to electric vehicles is a major reason for growth of copper clad laminate market.
Get 10% Customization on this Report: https://www.marketsandmarkets.com/requestCustomizationNew.asp?id=100748480
Market Players
Some of the key players in the global copper clad laminates market are Kingboard Laminates Holdings Ltd. (China), Shengyi Technology Co., Ltd (China), Nan Ya Plastics Corporation (Taiwan), Panasonic Holdings Corporation (Japan), Taiwan Union Technology Corporation (Taiwan) and others.
Kingboard Laminates Holdings Ltd. (China) manufactures copper clad laminates and produces component materials such as copper foil, glass yarn, glass fabric, bleached kraft paper, epoxy resin, and glass fabric. The group also manufactures laminate goods, such as glass epoxy and flame-resistant paper laminates. The group runs more than 20 factories in southern and eastern China. The company also produces and sells chemicals, glass fabric, bleached kraft paper, and other products through its subsidiaries.
Shengyi Technology Co., Ltd (China), is a manufacturer of electronic circuit base materials. The company produces high-end electronic materials such as CCL, prepreg, insulation boards, metal-based CCL, resin-coated copper (RCC). Products are mostly used to create multi-layer boards and PCBs with single and double sides. The company has headquarters in China. | aryanbo91040102 |
1,916,893 | 10 Benefits of Choosing Handmade Soap Over Commercial Soap | Bathing is a healing activity that can nourish the body, not only a means of staying clean. And the... | 0 | 2024-07-09T07:11:13 | https://dev.to/amc_supplies_ab3a5708319f/10-benefits-of-choosing-handmade-soap-over-commercial-soap-4p55 | Bathing is a healing activity that can nourish the body, not only a means of staying clean. And the basic soap—an object we frequently take for granted—is at the center of this everyday routine. [Handmade soaps](https://www.amcsupplies.com.au/product-category/soap-and-bath-bomb/soap-bases) are becoming more and more popular among environmentally conscious consumers as an eco-friendly, natural substitute for the mass-produced commercial soaps that have long dominated the market. In this article, we are going to discuss the benefits of choosing handmade soap over commercial soap.
Why Choose Handmade Soap Over Commercial Soap?
The cosmetic and skincare industry has become more famous due to commercial soaps and other beauty products. Consumers purchase products recommended by their favorite celebrity faces without questioning and without even looking at the ingredients list.
Using handmade soaps reduces the need to deal with these problems. Since our ancestors passed down the traditional method of making soap to us, handmade soaps have been a part of our culture for centuries. You can easily buy all soap-making ingredients from the [manufacturer online at a bulk rate](https://www.amcsupplies.com.au/). Natural resources were used to make soaps before synthetic materials were used. Natural ingredients have more advantages and health benefits.
Handmade soaps promote simplicity, in contrast to commercial manufacturers that frequently make their products with harmful ingredients. The plant-based oils and butters that are used in handmade soaps have several skin-benefiting properties.
Benefits of Choosing Handmade Soap Over Commercial Soap
Natural Scent and Fragrance
All of the materials used to manufacture handmade soap are extracted from nature and don’t contain any harmful substances. When you use handmade soaps for your bath, they release the most amazing fragrances. Such handmade products effortlessly blend into the space.
Chemical-based soaps have an overbearing scent because manufacturers have tricked consumers into thinking they should smell the soap’s outside before buying it.
Preserve Natural Oils
The natural oils present in handmade soaps help keep your skin moisturized. The soft texture of handmade soaps is a result of the gentle oils used, which do not irritate the skin. On the other hand, commercial soaps are prepared with hard oils.
Made Using Natural Ingredients
All the components used in the manufacture of handmade soaps are natural. While animal fat was once used to make soap, handmade soaps are actually manufactured from natural oils like avocado, coconut, tallow, and many more.
These soaps also contain natural smells that are derived from flowers and other natural sources. This makes your skin more moisturized as a result.
Adaptable to Various Uses
The soaps prepared by hand have multiple uses. as opposed to commercially produced soaps, which are created especially for a certain purpose. Handmade products are incredibly versatile; you can use them for a hot shower after a tiring match game or as your nighttime face wash.
Environment Friendly
Selecting handmade products is an act of choosing nature. Natural resources are used in the manufacture of handmade products; each component is a component of the natural world. Selecting soap that is created by hand means that you are indirectly keeping rivers and lakes clean.
Chemical-based soaps end up in your bathroom sink and go straight into a water body. Since these substances are difficult to decompose, they begin to contaminate the lake. Nature is not harmed by handmade soaps, and they dissolve easily.
Has Glycerin in It
Few soaps available on the market have a high glycerin content. Glycerin deficiency may cause dry or rough skin. You might feel your skin being more moisturized after using handmade soaps because they are noted to have a high glycerin content. Since glycerin can be an expensive raw material, commercial soap manufacturers substitute glycerin with chemical additions.
Doesn’t Have Any Harmful Chemicals
Soaps are using more and more chemicals these days, and sodium laureth sulfate is one of them. Commercial soaps are known to have harmful chemicals present in them. Long-term use of shampoos and soaps containing these types of chemicals may irritate skin, infect eyes, and cause lung infections. In contrast, all of the ingredients in handmade soaps are natural. These type of chemical component are never used by handmade soaps to expand their consumer base.
Provides Superior Moisturization
After using a handmade soap, you can immediately notice an improvement in the quality of your skin. Our skin is better moisturized by handmade soaps. The skin becomes more hydrated while using handmade soaps produced with natural oils and other ingredients.
Healthy and Safe
Since all the ingredients used in handmade soaps are natural and are mainly extracted from nature they are more healthy and safe than the commercial soaps that have chemical substances present in them.
Produces Less Lather
Your soap may contain ingredients to produce lather if it produces a lot of frothy texture after just a few rubs. Handmade soaps don't produce extra lather. The additives used to produce lather in soaps can be harmful. It is not always necessary that the soaps should produce more lather to be of a good quality.
Where to Buy Soap Making Supplies?
Are you interested in making your own bath bombs, soaps, candles and searching for wholesale soap-making supplies in Australia?
If you're looking for high-quality raw materials and DIY ingredients in Australia, AMC Supplies is the place to go. Our dedication to excellence and creativity allows us to offer a wide range of materials to artisans, enabling them to realize their imaginative ideas.
Begin your do-it-yourself adventure by creating soap. You may get all the raw ingredients you need at Amc Supplies and make the best quality melt & pour soap base for handmade soap making.
Conclusion
Handmade soaps represent a return to a more natural way of life. Their benefits are numerous for both the environment and the consumers. Choosing handmade soap benefits your skin, local businesses, and the environment in addition to helping you wash your body.
Making soap by hand is a simple yet effective way. You can also start making soaps and candles at the ease of your home with Amc Supplies that is known for the best candle and soap making supplies. | amc_supplies_ab3a5708319f | |
1,916,894 | How to install Python on Windows | Dear Readers, This is my first blog about how to install python on Windows. Please find the below... | 0 | 2024-07-09T07:11:29 | https://dev.to/manupriya_r/how-to-install-python-on-windows-51jj | python, installation | Dear Readers,
This is my first blog about how to install python on Windows. Please find the below details for the same.
System Requirements check:
Go to Settings-->About
Example
OS: Windows 10 Pro
System Type: 64-bit operating system (Choose accordingly while downloading)
##
****Installing Python on Windows 10 Guide:****
1. Search on Browser: python install on windows
2. Select website: https://www.python.org/downloads/
3. Go to Downloads Section:
Choose Windows OS
Always download Stable release eg: " Python 3.12.4 - June 6, 2024 "
This Python 3.13.0b3 "b" indicates its beta version means its still in testing.
4. Python 3.12.4 Download Windows installer (64-bit) [ .exe file gets downloaded]
5. Then double click .exe file to install python
****Shows 2 options:
i. Install Now
ii. Customize installation
****Check boxes with 2 option below: (You can tick this check boxes)
i. Use admin privileges when installing py.exe
ii. Admin python.exe to PATH
****Then Choose Customize installation and all checkboxes can be selected. (as per your requirement)
Click Next
**** Shows Advanced Options
i. Install Python 3.12 for all users
ii. Associate file with Python (requires the 'py" launcher)
iii. Create shortcuts for installed applications
iv. Precompile standard library
v. Download debugging symbols
vi. Download debug binaries(requires VS 2017 or later)
**Check box can be selected from i to v
**Customize install location
By default it shows C.// drive (Keep as it is)
****Then it asks for Do you want to install on your device Click Yes. Shows Setup Progress
6.After successful installation it shows "Setup was successful".
Then click Close.
**To verify python installed on machine or not:**
Go to cmd / Command Prompt on your device
Once opened it shows as eg: C:\Users\Dev>
i. Type: python --version (example C:\Users\Dev>python --version)
ii. Shows output as below:
Python 3.12.4
If the above current version you installed shows its successfully installed.
To check for py shell
i. Type py (example C:\Users\Dev>py)
ii. Shows as below:
Python 3.12.4 (tags/v3.12.4:8e8a4ba, Jun 6 2024, 19:30:16) [MSC v.1940 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
iii. Then type what you need, example:
>>> print("My first blog about python installation on windows....")
My first blog about python installation on windows....
******To check IDLE: Search on your device idle**
(IDLE is Python's Integrated Development and Learning Environment, its free open source from python itself)
Shows IDLE (Python 3.12.4 APP) Open it new window gets opened as IDLE Shell 3.12.4
As below:
Python 3.12.4 (tags/v3.12.4:8e8a4ba, Jun 6 2024, 19:30:16) [MSC v.1940 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license()" for more information.
Here also you can type and check:
print("My first blog about python installation on windows....")
It shows as output below:
My first blog about python installation on windows....
You can also save your file:
File-->Save As and save with file name eg: demo. Automatically it gets saved as demo.py
You can open the file Notepad/Notepad++ editor to check it.
Thank you! | manupriya_r |
1,916,895 | The Three Essential Rules of Business Logo Design:- Logo Design Singapore | Creating an effective business logo design is crucial for establishing a strong brand identity. As... | 0 | 2024-07-09T07:13:07 | https://dev.to/logodesignsingai/the-three-essential-rules-of-business-logo-design-logo-design-singapore-fk3 | business, logo, design |
Creating an effective [business logo design](https://www.logodesignsingapore.sg/) is crucial for establishing a strong brand identity. As a logo designer, understanding the key principles of logo design can help you create logos that not only look great but also serve their intended purpose. Here are the three fundamental rules of business logo design.
**1. Simplicity**
Simplicity is the cornerstone of effective [logo design services](https://www.logodesignsingapore.sg/). A simple logo is easy to recognize and remember, which is essential for brand recall. When designing a logo, focus on creating a clean and straightforward design that conveys the core message of the brand without unnecessary complexity. Avoid using too many colors, intricate patterns, or detailed graphics that can make the logo look cluttered. A simple logo ensures that it is versatile and can be easily reproduced across various mediums and sizes, maintaining its impact and readability.
**2. Relevance**
A logo must be relevant to the business it represents. As a [logo designer](https://www.logodesignsingapore.sg/), it’s crucial to understand the business’s industry, target audience, and brand values. The logo should reflect the essence of the business and resonate with its audience. For example, a tech company might prefer a modern and sleek design, while a children’s toy brand might opt for a playful and colorful logo. Incorporate elements such as appropriate colors, fonts, and symbols that align with the brand’s identity and appeal to its target market. Relevance ensures that the logo communicates the right message and fosters a connection with the audience.
**3. Timelessness**
A successful [logo design](https://www.logodesignsingapore.sg/) is timeless and remains effective for years to come. Trends in design come and go, but a timeless logo endures. When creating a logo, avoid using trendy design elements that may quickly become outdated. Instead, focus on classic design principles and aim for a look that will stand the test of time. A timeless logo saves the business from frequent rebranding, which can be costly and may confuse customers. Strive for a design that will remain relevant and recognizable regardless of changing trends.
**Conclusion**
By adhering to the principles of simplicity, relevance, and timelessness, a logo designer can create logos that effectively represent businesses and help them build a strong brand identity. These rules ensure that the logo is not only visually appealing but also functional and enduring, making a lasting impression on the target audience.
**Continue Reading: https://www.logodesignsingapore.sg/** | logodesignsingai |
1,916,896 | Mastering Integration Testing Best Practices | In the ever-evolving world of software development, it is crucial to guarantee that individual... | 0 | 2024-07-09T07:13:34 | https://magknows.com/mastering-integration-testing/ | integration, testing | 
In the ever-evolving world of software development, it is crucial to guarantee that individual components function harmoniously when building superior programs. The process of integration testing plays a key role in creating software and aids in identifying and resolving issues related to how these components combine at an early stage.
For attaining all benefits offered by automated integrated testing, adhering to the finest methods and enhancing its efficacy becomes highly significant. In this post, we will delve into significant practices for integration testing, ensuring the success of the software projects.
**Start early, test often**
At the start of software creation, teams should initiate integration testing. This process must be repeated each time when new parts are added.
When these elements are tested by the developers during their addition, it aids in swiftly identifying and resolving issues related to how things function together.
This prevents minor problems from escalating into significant concerns as they continue building the software.
**Define clear integration points**
Before users enter into integration testing, it’s crucial to establish precise limits for interactions between system components.
This ensures that each part functions correctly when combined with others and allows for a more thorough examination of specific connections. Such an approach improves overall test coverage and effectiveness.
**Employ incremental testing strategies**
When integration testing is divided into smaller sections, teams can focus on checking one function or module at a time.
This process of step-by-step testing simplifies the test work and allows issues with combining parts to be discovered earlier. It promotes a faster and more adaptable way of software development.
**Leverage mocking and stubs**
When there are no parts or things needed, for instance, because they are not yet made or not available, then use methods such as mocking and stubbing to copy what these do.
Mocking allows the testers to create basic versions that they can manage of these dependencies. In this way, even when the real parts are absent, they can test how everything functions together effectively.
**Prioritize end-to-end testing**
Integration testing focuses on how the system’s parts function as a whole, but end-to-end testing examines everything collectively—both the inside components and interactions with outside systems.
By giving priority to end-to-end testing, it implies a thorough examination of significant business processes and user experiences. This reinforces team’s confidence in the overall functionality of the system and its ability to perform tasks effectively.
**Automate integration tests**
Automating the tests for integration speeds up the process of testing and makes it more repeatable and reliable. When we automate the same test situations over again, teams can do these tests often and stably.
This helps to find problems with integration sooner which allows fast responses for those who develop.
**Establish comprehensive test data management**
You require a wide range of test data for effective integration testing, displaying numerous scenarios and special instances.
If you handle test data appropriately, the integration tests will be akin to how individuals employ things in actuality. This aids in verifying if the system functions correctly under diverse circumstances.
**Monitor and analyze integration metrics**
Watching over integration metrics such as how often mistakes happen, the speed of system responses and how fast data is processed provides a crucial comprehension of system effectiveness and reliability.
When conducting integration tests, observing these metrics aids in identifying potential slowdowns, diminished performance or other issues that may impact the overall quality of the whole system.
**Conduct regression testing**
When the system changes and users put in new pieces, it is important to carry out regression tests. These checks ensure that old functions do not stop working or get disturbed by these updates.
Regression testing lowers the possibility of unexpected problems or issues appearing when everything is combined, maintaining stability in the software product.
**Collaborate across teams**
Integration testing usually needs involvement from multiple teams, each handling different parts or modules. It promotes communication and teamwork among developers, testers and operations groups.
This way of working together builds a sense of joint duty that makes integrating easier and problem-solving quicker.
**Conclusion**
In the dynamic realm of testing software, performance relies on employing good approaches and using right tools. For instance, when combining software units, they require a system that simplifies their testing work and assists them in concentrating initially on crucial portions, which entail more risk so that it doesn’t hamper the business.
Opkey is a test automation platform that fits well for integration testing requirements in today’s time. In Opkey, teams can concentrate on verifying the most crucial modules with high risk to safeguard business activities and reduce disturbances.
The design of the interface makes it easy for the team to identify and focus on important connection points, which helps them carry out thorough checks of essential functions.
Scalability is a vital aspect of integration testing, and Opkey handles it well. It permits test cases to be executed simultaneously, making use of resources effectively and enhancing the speed of the testing procedure.
This feature enables teams to expand their testing work without difficulty as the project increases in size.
Opkey’s reporting features empower teams to quickly discover and discuss problems, making it simpler for them to cooperate and resolve issues.
With exhaustive test reports, those engaged acquire a crucial comprehension of the system’s performance and dependability. This assists in making knowledgeable decisions while continually enhancing things.
| rohitbhandari102 |
1,916,897 | Cillian Miller - Leading the Future of AI-Driven Investment | Cillian Miller - Leading the Future of AI-Driven Investment Born on September 10, 1965, in... | 0 | 2024-07-09T07:15:10 | https://dev.to/aussieinsightnews/cillian-miller-leading-the-future-of-ai-driven-investment-12kl | cillianmiller | **Cillian Miller - Leading the Future of AI-Driven Investment**
Born on September 10, 1965, in Californian, Cillian Miller grew up immersed in a business-oriented environment, showing a profound interest in commerce and investment from a young age. During his time at Yale University, he made his first million dollars in the stock and futures markets, gaining an early and notable reputation while many of his peers were still seeking employment. Miller chose a life of discreet investment and global learning, which earned him the nickname "Professor Miller" as the youngest member of the Ivy League to achieve such distinction.
1. Ivy League Professor:
Starting his career at Yale University, Miller demonstrated sharp insights into the stock market early on. His early success allowed him to lead a low-key investment life, traveling the world to study different business and financial models, enriching his perspective and laying the groundwork for his future endeavors.
2. Honors and Crisis:
During his travels, Miller pursued a Master's degree in Computer Science at the ETH Zurich , where he began building his own algorithmic trading models, achieving considerable success. In 2005, he was named "Emerging Market Stock Fund Manager of the Year" by an international money market magazine, and the Templeton Fund he led received the "Global Best Emerging Market Fund" award. However, the 2008 global financial crisis posed a significant challenge in his career, which he overcame with the guidance of his mentors and his resilience.
3. From Investor to Mentor:
After years of market ups and downs, Miller decided to systematize his investment philosophy and trading skills and began teaching quantitative trading. In 2011, he founded the DB Wealth Institute, committed to nurturing new talent in the financial sector. The institute quickly expanded globally, adhering to the principles of "student interests first" and "practical experience as the best teaching method."
4. Rise of a Business Empire:
From its inception, the DB Wealth Institute began developing the "Lazy Investor System." With the advancement of technology, particularly the application of artificial intelligence, Miller and his team gradually transformed quantitative trading into the realm of AI trading. In 2018, they successfully launched 'AI Financial Navigator 4.0.' To support the development of this system, the DB Wealth Institute issued the DBW token, which not only successfully raised funds but also brought more research funding and professional talent to the institution. With the success of the DBW token and AI Financial Navigator 4.0, the valuation of DB Wealth Institute skyrocketed, significantly expanding Miller's business empire. | aussieinsightnews |
1,916,898 | Python Decorators: What is decorators and how to use them? | Decorators are a powerful and versatile tool that allows you to modify the behavior of functions... | 0 | 2024-07-09T07:15:40 | https://dev.to/devstoriesplayground/python-decorators-what-is-decorators-and-how-to-use-them-569 | python, decorator, tutorial, productivity | Decorators are a powerful and versatile tool that allows you to modify the behavior of functions without permanently altering their original code. They work by wrapping a function in another function, which adds some extra functionality before or after the original function executes.
**What they are:**
Decorators are higher-order functions, meaning they take another function as an argument and return a new function.
The new function returned by the decorator typically acts as a wrapper around the original function, adding or modifying its behavior.
**How they work:**
1. Defining the Decorator: You create a function that takes another function as its argument. This outer function is the decorator.
2. Inner Functionality: Inside the decorator, you can define logic to be executed before or after the wrapped function.This might involve additional calculations, logging messages, or other actions.
3. Returning a New Function: The decorator usually returns a new function object. This new function holds the wrapped function and any additional behavior you've specified.
**Benefits of using decorators:**
1. Clean and Maintainable Code: By encapsulating modifications in decorators, you keep your original functions clean and focused on their core functionality.
2. Code Reusability: Decorators allow you to create reusable patterns that can be applied to different functions throughout your codebase.
3. Improved Readability: Well-defined decorators can make code easier to understand by clearly indicating the modifications being made to functions.
**Common Use Cases:**
1. Authorization: Checking if a user has the necessary permissions before allowing them to call a function.
2. Logging: Recording information about function calls, including arguments and return values.
3. Error Handling: Implementing common error handling patterns to catch and manage exceptions.
4. Performance Monitoring: Measuring the execution time of functions to identify performance bottlenecks.
5. Caching: Storing the results of function calls to avoid redundant calculations.
Here's a Python example demonstrating a simple decorator that logs the execution time of a function:
```
import time
def timing_decorator(func):
"""Decorator that measures the execution time of a function."""
def wrapper(*args, **kwargs):
start_time = time.time()
result = func(*args, **kwargs)
end_time = time.time()
print(f"Function '{func.__name__}' took {end_time - start_time:.4f} seconds to execute.")
return result
return wrapper
@timing_decorator
def some_function(n):
"""Example function that does some work."""
total = 0
for i in range(n):
total += i * i
return total
# Call the function with decoration
result = some_function(10000)
print(f"Result: {result}")
```
We define a decorator timing_decorator that takes a function func as an argument. Inside the decorator, we create an inner function wrapper that takes arguments similar to the original function. When wrapper is called, it records the start time using time.time(). The original function func is then called with its arguments (*args, **kwargs). After func finishes, the end time is recorded. The execution time is calculated and printed along with the function name. Finally, the result from func is returned. The @timing_decorator syntax is used to decorate the some_function. This essentially replaces some_functionwith the wrapped function created by the decorator.
When you run this code, it will print the execution time of some_function along with the result. This is a simple example, but decorators can be used to implement various functionalities based on your needs.
## Let's wrap up things
> By understanding decorators, you can enhance your Python code's flexibility, maintainability, and overall design.
`HAPPY CODING 🚀`
| devstoriesplayground |
1,916,899 | Oracle Fusion Procurement Online Training | Course is designed to cover Oracle Fusion Procurement along with Global and Centralized Procurement... | 0 | 2024-07-09T07:15:49 | https://dev.to/oraclefusion/oracle-fusion-procurement-online-training-3m8i | online, oracle | Course is designed to cover [Oracle Fusion Procurement](https://www.softonlinetraining.com/oracle-fusion-procurement-training) along with Global and Centralized Procurement Scenarios and all the transactions. Training is given with case studies and live application demonstrations for real time application learning. Each Training Session is recorded and provided for self-paced learning. Oracle Fusion Procurement Online Training ensures you get perfection in Application Implementation, Migration, and Upgrading etc.
| oraclefusion |
1,916,900 | Streamline IT Asset Management with Seleam Fixed Assets Management System and QR Codes | In the fast-paced world of technology, effectively managing IT assets is crucial for businesses to... | 0 | 2024-07-09T07:16:07 | https://dev.to/seleamsoftware/streamline-it-asset-management-with-seleam-fixed-assets-management-system-and-qr-codes-3m9p |
In the fast-paced world of technology, effectively managing IT assets is crucial for businesses to optimize productivity and minimize costs. The integration of QR codes with Seleam Fixed Assets Management System offers a seamless solution for efficient IT asset management. In this article, we will explore how Seleam's innovative system, combined with QR codes, can simplify the tracking and management of your IT assets, leading to increased efficiency and improved asset control.
Understanding Seleam Fixed Assets Management System:
Seleam Fixed Assets Management System is a comprehensive software solution designed to streamline the management of fixed assets, including IT assets. By leveraging its advanced features and functionalities, businesses can effectively track, monitor, and maintain their IT assets throughout their lifecycle. Its integration with QR codes further enhances its capabilities and convenience.
Advantages of QR Codes in IT Asset Management:
QR codes provide a versatile and efficient method of asset identification and tracking. Here's how QR codes can revolutionize your IT asset management:
Simplified asset identification: Each IT asset can be assigned a unique QR code, eliminating the need for manual data entry or reliance on traditional asset tags. Scanning QR codes provides instant access to asset details, such as specifications, warranty information, and assigned users.
Efficient asset tracking: By scanning QR codes at different stages, such as procurement, deployment, maintenance, and disposal, businesses can effortlessly track the movement and status of their IT assets. This ensures accurate inventory records and minimizes the risk of lost or misplaced assets.
Streamlined asset audits: Conducting asset audits becomes significantly faster and more accurate with QR codes. Simply scan the QR codes to instantly retrieve asset information, eliminating the need for manual data collection. This saves time, reduces errors, and ensures compliance with regulatory requirements.
**Benefits of Seleam Fixed Assets Management System and QR Codes:**
The combination of Seleam Fixed Assets Management System and QR codes offers numerous benefits for IT asset management:
Enhanced accuracy and efficiency: QR codes eliminate manual data entry and reduce human errors, ensuring accurate asset tracking and efficient management processes.
Improved visibility and control: Real-time access to asset information through QR codes enables better visibility and control over IT assets, enhancing decision-making and resource planning.
Time and cost savings: Streamlined asset management processes, such as audits and maintenance, save valuable time, reduce administrative overhead, and minimize asset losses or redundancies.
Compliance and security: QR codes provide an additional layer of security by linking assets to their authorized users, ensuring compliance with data protection regulations and preventing unauthorized access.
Seleam Fixed Assets Management System, combined with QR code integration, offers a powerful solution for efficient IT asset management. By leveraging QR codes, businesses can simplify asset identification, streamline tracking processes, and gain better control over their IT infrastructure. Embrace Seleam's innovative system and QR codes to optimize your IT asset management, enhance productivity, and drive cost savings.
| seleamsoftware | |
1,916,925 | Allocation de Naissance : Conditions et Procédures d'Obtention | L'allocation de naissance est une aide financière importante destinée à soutenir les familles lors de... | 0 | 2024-07-09T07:25:49 | https://dev.to/connievernon/allocation-de-naissance-conditions-et-procedures-dobtention-5ecn | <p><span style="font-weight: 400;">L'allocation de naissance est une aide financière importante destinée à soutenir les familles lors de l'arrivée d'un nouvel enfant. En France, cette allocation vise à alléger les frais liés à la naissance et à favoriser le bien-être des parents et du bébé. Cet article vous guidera à travers les conditions nécessaires pour bénéficier de </span><a href="https://www.4shared.com/web/preview/pdf/FGBm7ERFge?"><strong>allocation de naissance</strong></a><span style="font-weight: 400;">, ainsi que les étapes à suivre pour en faire la demande.</span></p>
<h2><strong>Qu'est-ce que l'Allocation de Naissance ?</strong></h2>
<p><span style="font-weight: 400;">L'allocation de naissance est une prestation versée par la Caisse d'Allocations Familiales (CAF) pour aider les familles à couvrir les dépenses liées à l'arrivée d'un enfant. Elle est destinée aux parents qui remplissent certaines conditions d'éligibilité et peut varier en fonction de la situation familiale et des revenus.</span></p>
<h2><strong>Conditions d'Éligibilité</strong></h2>
<h3><strong>Résidence et Nationalité</strong></h3>
<p><span style="font-weight: 400;">Pour bénéficier de l'allocation de naissance, il est essentiel de résider en France de manière stable et régulière. Les parents doivent également être de nationalité française ou résider légalement en France. Les ressortissants étrangers doivent prouver leur statut de résident permanent ou détenir un titre de séjour valide.</span></p>
<h3><strong>Conditions de Ressources</strong></h3>
<p><span style="font-weight: 400;">L'allocation de naissance est soumise à des conditions de ressources. Les revenus du foyer ne doivent pas dépasser un plafond déterminé par la CAF. Ce plafond est ajusté régulièrement en fonction du coût de la vie et des politiques publiques.</span></p>
<h3><strong>Situation Familiale</strong></h3>
<p><span style="font-weight: 400;">Les conditions de l'allocation peuvent varier selon la situation familiale des demandeurs. Les familles nombreuses, les parents isolés ou les couples en situation particulière peuvent bénéficier de conditions avantageuses ou de montants augmentés.</span></p>
<h2><strong>Procédure de Demande</strong></h2>
<h3><strong>Préparation des Documents</strong></h3>
<p><span style="font-weight: 400;">Avant de faire une demande d'allocation de naissance, il est important de préparer les documents suivants :</span></p>
<ul>
<li style="font-weight: 400;"><strong>Justificatif d'identité</strong><span style="font-weight: 400;"> (carte d'identité, passeport)</span></li>
<li style="font-weight: 400;"><strong>Justificatif de résidence</strong><span style="font-weight: 400;"> (quittance de loyer, facture d'électricité)</span></li>
<li style="font-weight: 400;"><strong>Certificat de naissance</strong><span style="font-weight: 400;"> ou preuve de grossesse</span></li>
<li style="font-weight: 400;"><strong>Avis d'imposition</strong><span style="font-weight: 400;"> ou déclaration de revenus</span></li>
</ul>
<h3><strong>Dépôt de la Demande</strong></h3>
<p><span style="font-weight: 400;">La demande d'allocation de naissance peut être effectuée en ligne sur le site de la CAF ou en personne dans une agence locale. Vous devez compléter le formulaire de demande en fournissant tous les documents nécessaires. Assurez-vous de vérifier les informations et de soumettre tous les justificatifs requis pour éviter des retards dans le traitement de votre demande.</span></p>
<h3><strong>Suivi et Réponse</strong></h3>
<p><span style="font-weight: 400;">Après avoir soumis votre demande, la CAF examinera votre dossier et vérifiera votre éligibilité. Vous recevrez une notification par courrier ou par email concernant l'acceptation ou le refus de votre demande. En cas de refus, vous avez la possibilité de contester la décision ou de fournir des informations complémentaires.</span></p>
<h2><strong>Conclusion</strong></h2>
<p><a href="https://www.4shared.com/web/preview/pdf/FGBm7ERFge?"><strong>Allocation de naissance</strong></a><span style="font-weight: 400;"> constitue une aide précieuse pour les familles françaises lors de l'arrivée d'un nouvel enfant. Pour bénéficier de cette aide, il est crucial de respecter les conditions d'éligibilité et de suivre les procédures de demande avec soin. En préparant les documents nécessaires et en soumettant votre demande correctement, vous pourrez obtenir le soutien financier nécessaire pour accueillir votre bébé dans les meilleures conditions possibles. Pour toute question ou information complémentaire, n'hésitez pas à contacter votre CAF locale.</span></p>
| connievernon | |
1,916,901 | Follow Us on Flipboard for Curated Bad Bunny Merch Content! | Discover the best of Bad Bunny Merch on Flipboard. We've curated a collection of articles, photos,... | 0 | 2024-07-09T07:17:34 | https://dev.to/badbunnymerch12/follow-us-on-flipboard-for-curated-bad-bunny-merch-content-56dh | badbunnymerch, flipboard, curatedcontent | Discover the best of Bad Bunny Merch on Flipboard. We've curated a collection of articles, photos, and videos to keep you updated and inspired. Follow our Flipboard account and dive into the world of Bad Bunny Merch!
https://flipboard.com/profile/badbannymerchshop
 | badbunnymerch12 |
1,916,921 | Follow Our Scoop Account for the Latest Bad Bunny Merch News! | Stay updated with the latest news and releases of Bad Bunny Merch by following us on Scoop. We share... | 0 | 2024-07-09T07:21:52 | https://dev.to/badbunnymerch12/follow-our-scoop-account-for-the-latest-bad-bunny-merch-news-1mgo | badbunnymerch, scoop, latestnews | Stay updated with the latest news and releases of Bad Bunny Merch by following us on Scoop. We share timely updates, reviews, and exclusive content to keep you informed. Follow us and never miss out on anything new!
https://www.scoop.it/topic/bad-bunny-by-bad-bunny-6
| badbunnymerch12 |
1,916,922 | JavaScript Tag Function | Follow MDN:... | 26,001 | 2024-07-09T07:23:03 | https://dev.to/nhannguyendevjs/javascript-tag-function-d17 | javascript, beginners, programming | Follow MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#tagged_templates
> **Tagged Templates** - A more advanced form of template literals are tagged templates.
> **Tags** allow you to parse template literals with a function. The first argument of a tag function contains an array of string values. The remaining arguments are related to the expressions.
> The **tag function** can then perform whatever operations on these arguments you wish, and return the manipulated string. (Alternatively, it can return something completely different, as described in one of the following examples.)
> The name of the function used for the tag can be whatever you want.
```js
const person = "Mike";
const age = 28;
function myTag(strings, personExp, ageExp) {
const str0 = strings[0]; // "That "
const str1 = strings[1]; // " is a "
const str2 = strings[2]; // "."
const ageStr = ageExp < 100 ? "youngster" : "centenarian";
// We can even return a string built using a template literal
return `${str0}${personExp}${str1}${ageStr}${str2}`;
}
const output = myTag`That ${person} is a ${age}.`;
console.log(output);
// That Mike is a youngster.
```
We can also check the [Prisma Raw Queries](https://www.prisma.io/docs/orm/prisma-client/queries/raw-database-access/raw-queries) feature to see how the **tag function** can be used.
```js
const result = await prisma.$queryRaw`SELECT * FROM User`;
```
---
I hope you found it helpful. Thanks for reading. 🙏
Let's get connected! You can find me on:
- **Medium:** https://medium.com/@nhannguyendevjs/
- **Dev**: https://dev.to/nhannguyendevjs/
- **Hashnode**: https://nhannguyen.hashnode.dev/
- **Linkedin:** https://www.linkedin.com/in/nhannguyendevjs/
- **X (formerly Twitter)**: https://twitter.com/nhannguyendevjs/
- **Buy Me a Coffee:** https://www.buymeacoffee.com/nhannguyendevjs | nhannguyendevjs |
1,916,923 | Best 10+ AI Tools For Data Analysis | Drowning in data but starving for insights? This journey through the top AI tools for data analysis... | 0 | 2024-07-09T07:23:22 | https://flatlogic.com/blog/best-10-ai-tools-for-data-analysis/ | ai, webdev, beginners, programming |
**_Drowning in [data](https://flatlogic.com/blog/7-trends-in-javascript-to-look-for-in-2020/) but starving for insights? This journey through the top AI tools for data analysis might just be your lifeline._**
When embarking on the quest for the ultimate AI tool for data analysis, you’re likely bombarded with an avalanche of questions: Which AI tools for data analysis can truly decipher the cryptic language of data? How do they streamline the analysis process? Can they predict trends and offer actionable insights? In the wise words of Geoffrey Hinton, **_“AI is like a magic trick: once you know how it’s done, it’s not that impressive.”_** But finding that “how” is precisely what this article is about.
[Researches](https://www.mckinsey.com/capabilities/quantumblack/our-insights/the-state-of-ai-in-2023-generative-AIs-breakout-year) show that AI tools analyzing data can quickly find patterns and make forecasts that humans wouldn’t spot quickly. This big jump is shaking up various fields, like healthcare and finance, faster than ever before.
With a background steeped in software engineering and a proven track record of deciphering the most cryptic datasets into clear, actionable strategies, the insights here are forged in the fires of real-world application. From leading teams that developed cutting-edge analytics platforms to advising top-tier firms on data strategy, this isn’t theory, it’s practice.
By reading this article, you will have more than just a list of AI tools for data analysis. You’ll have a blueprint for turning raw data into strategic gold. You’ll understand not only the “what,” but also the “why” and “how” of each tool, enabling you to not only pick the right weapon for your data battles but to wield it with precision. With this knowledge, you can effectively integrate these tools with your [business software](https://flatlogic.com/), enhancing your ability to make informed decisions and optimize your operations for peak performance.
## Unlocking the Future: Why AI Tools for Data Analysis are Inevitable
This section delves into why harnessing AI for data interpretation isn’t just a futuristic fantasy—it’s an essential stride towards a data-driven tomorrow. Here, we unravel the core reasons for making AI tools for data analysis relevant and indispensable for anyone looking to thrive in the data-rich landscape of the future.
- Unmanageable Data Volumes. We’re producing data in volumes that are, quite frankly, beyond human capacity to process and analyze efficiently. AI tools for data analysis can handle this scale, making sense of data that would take humans lifetimes to analyze.
- Complexity Beyond Human Analysis. The complexity of data patterns and the insights they hold are often beyond the reach of traditional statistical methods or human analysis. AI tools for data analysis can detect, analyze, and learn from patterns at a level of complexity that’s necessary for today’s data-driven decisions.
- Speed of Processing. In a world where real-time decisions can make or break markets, AI tools for data analysis’s ability to process and analyze data at speeds no human team can match is not just an advantage, it’s a necessity.
- Predictive Power. The ability to predict future trends based on historical data is invaluable. AI tools for data analysis do this through advanced algorithms and machine learning, offering insights that can [guide](https://flatlogic.com/blog/react-table-guide-and-best-react-table-examples/) strategic planning and operational adjustments in real time.
- Error Reduction. AI tools for data analysis significantly reduce the margin for human error. It doesn’t tire, it doesn’t overlook, and it doesn’t misinterpret due to bias or fatigue, making it an essential tool for high-stakes data analysis.
- Accessibility and Democratization. AI tools are making high-level data analysis accessible to a broader range of businesses and organizations. This democratization means that even smaller entities can compete on the same playing field as larger corporations.
- Adaptability and Learning. Unlike static tools, AI systems learn and adapt over time. They become more efficient and accurate with more data, meaning they continually improve in their analysis and predictions.
## Best 10+ AI Tools For Data Analysis in 2024
Navigating the vast ocean of AI tools for data analysis can feel like searching for treasure without a map. But fear not, intrepid explorer! We’ve charted the waters for you, compiling a list of the 10+ best AI tools that are transforming data analysis. From machine learning marvels to visualization virtuosos, these tools are the compasses and sextants that guide businesses and researchers alike through the data deluge. Whether you’re a seasoned data scientist or a business analyst looking to harness the power of AI, this guide will illuminate the path to insight and innovation.
## [TensorFlow](https://www.tensorflow.org/)
Developed by the brainiacs at Google, TensorFlow stands tall as a powerhouse for numerical computation and machine learning. This open-source [library](https://flatlogic.com/blog/best-libraries-for-react-i18n/) is beloved for its flexibility, allowing users to craft machine-learning models with a breeze. Whether you’re a startup dabbling in predictive analytics or a researcher pushing the boundaries of AI, TensorFlow’s robust framework supports both CPUs and GPUs for efficient computation.
**Pricing Model:** Open-source (Free)
**Key Features:**
- High-performance numerical computation
- Deep learning and neural network modeling
- Cross-platform (works on both CPUs and GPUs)
- Extensive community and resource library
**Pros:**
- Highly versatile and scalable
- Strong community support
- Integration with Google Cloud
**Cons:**
- The steep learning curve for beginners
- Can be resource-intensive
## [PyTorch](https://pytorch.org/)
PyTorch is the torchbearer for researchers and developers aiming for the stars with their deep learning projects. Birthed by Facebook’s AI Research lab, this tool is intuitive, flexible, and power-packed for modeling and training deep learning algorithms. With its dynamic computational graph and thriving ecosystem, PyTorch facilitates the rapid prototyping of models, scaling from desktops to cloud-based services without breaking a sweat.
**Pricing Model:** Open-source (Free)
**Key Features:**
- Dynamic computational graph
- Strong support for deep learning
- Easy model prototyping and deployment
- Active and supportive community
**Pros:**
- Excellent for research and development
- User-friendly for Python developers
- Seamless integration with other AI frameworks
**Cons:**
- Documentation can be overwhelming
- Slightly fewer resources than TensorFlow
## [Jupyter Notebook](https://jupyter.org/)
Jupyter Notebook is the digital canvas for data scientists who paint with code. This open-source tool allows for the creation and sharing of documents that contain live code, equations, visualizations, and narrative text. Ideal for data cleaning, transformation, numerical simulation, and statistical modeling, Jupyter supports over 40 programming languages, including Python, R, Julia, and Scala, making it a versatile tool for collaborative data analysis.
**Pricing Model:** Open-source (Free)
**Key Features:**
- Supports live code, visualizations, and markdown
- Compatible with numerous programming languages
- Integrates with big data tools and frameworks
**Pros:**
- Highly interactive and collaborative
- Supports reproducible research
- Extensive support for data visualization
**Cons:**
- Can become unwieldy for very large notebooks
- Security issues if not properly configured
## [Azure Machine Learning](https://azure.microsoft.com/en-us/services/machine-learning/)
Microsoft’s Azure Machine Learning is a cloud-based beast for training, deploying, and managing machine learning models at scale. Offering a blend of pre-built AI capabilities and custom modeling, this platform empowers users to accelerate the end-to-end machine learning lifecycle. With its drag-and-drop interface and extensive toolset, Azure ML democratizes AI, making it accessible to both seasoned data scientists and beginners alike.
**Pricing Model:** Pay-as-you-go
**Key Features:**
- Automated machine learning
- Scalable end-to-end machine learning lifecycle management
- Integrated development environment
**Pros:**
- Highly scalable and flexible
- Strong security features
- Comprehensive toolset for all AI development stages
**Cons:**
- Pricing can be complex and potentially expensive
- Can be overwhelming for beginners
## [IBM Watson](https://www.ibm.com/watson)
IBM Watson stands as a colossus in the realm of AI, offering a robust suite of AI tools and applications for businesses. From natural language processing to data visualization, Watson’s capabilities are designed to augment human intelligence, enhance decision-making, and drive innovation. Its [API](https://flatlogic.com/blog/crud-app/) suite allows developers to integrate AI into their applications effortlessly, while its enterprise-grade security ensures data integrity and compliance.
**Pricing Model:** Subscription-based
**Key Features:**
- Advanced natural language processing
- Data visualization and analysis
- Secure and scalable AI integration
**Pros:**
- The broad range of AI capabilities
- Strong focus on enterprise solutions
- Extensive industry applications
**Cons:**
- Pricing can be steep for small businesses
- The complexity of tools requires a learning curve
## [Google Cloud AI](https://cloud.google.com/ai-platform)
The Google Cloud AI Platform is a comprehensive suite designed to bring AI deployment and development within reach of businesses of all sizes. With this platform, users can build, train, and deploy machine learning models on the highly scalable and reliable infrastructure of Google Cloud. The platform supports a wide range of machine learning frameworks, including TensorFlow, and offers both automated and custom model-building capabilities to suit various levels of expertise.
**Pricing Model:** Pay-as-you-go
**Key Features:**
- Support for multiple ML frameworks
- Automated and custom model capabilities
- Integration with Google Cloud services
**Pros:**
- High scalability and reliability
- Extensive AI and machine learning tools
- Seamless integration with other Google Cloud services
**Cons:**
- Can be costly for large-scale deployments
- May require a steep learning curve for beginners
## [DataRobot](https://www.datarobot.com/)
DataRobot offers an enterprise AI platform that automates the machine learning process to enable fast and easy deployment of predictive models. This platform is designed for data scientists, business analysts, and developers to build and deploy AI applications at scale. DataRobot’s claim to fame is its automated machine learning (AutoML) feature, which accelerates the creation of advanced predictive models.
**Pricing Model:** Subscription-based
**Key Features:**
- Automated machine learning (AutoML)
- Model deployment and monitoring
- Scalable AI application development
**Pros:**
- Streamlines the model-building process
- Supports a wide range of data types and sources
- Provides insights and model explanations
**Cons:**
- Pricing can be opaque and expensive
- May require initial training to navigate complex features
## [Tableau](https://www.tableau.com/)
While not exclusively an AI tool, Tableau is a powerhouse in the world of data visualization and business intelligence. It helps users see and understand data, transforming the way people use data to solve problems. With its powerful analytical tools, Tableau enables users to make data-driven decisions with ease. It also incorporates AI-driven insights, offering explanations and predictions to augment its core functionalities.
**Pricing Model:** Subscription-based
**Key Features:**
- Intuitive data visualization tools
- AI-driven analytics and insights
- Integration with a wide array of data sources
**Pros:**
- User-friendly interface
- Powerful data visualization capabilities
- Robust data connectivity options
**Cons:**
- Can be expensive for small teams or individuals
- Advanced analytics features may have a learning curve
## [RapidMiner](https://rapidminer.com/)
RapidMiner is an end-to-end data science platform that provides tools for data prep, machine learning, deep learning, text mining, and predictive analytics. It is designed to be accessible to all users, from data scientists to business analysts, allowing for the creation of predictive models without the need for extensive coding knowledge. RapidMiner stands out for its comprehensive platform that covers the entire data science lifecycle.
**Pricing Model:** Free tier available; subscription for advanced features
**Key Features:**
- Visual workflow designer
- Automated model validation
- Extensive data science toolset
**Pros:**
- Comprehensive platform for the data science lifecycle
- Accessible to users with varying levels of expertise
- Strong community support and resources
**Cons:**
- The full feature set can be costly
- May require time to learn and master the platform
## [KNIME](https://www.knime.com/)
KNIME is an open-source platform for data-driven innovation, helping users discover the potential hidden in their data, mine for fresh insights, or predict new futures. With nodes for various types of data transformation and analysis, KNIME is designed to be an intuitive, drag-and-drop interface that simplifies complex data workflows. It is particularly favored for its ability to blend traditional data sources with unstructured data.
**Pricing Model:** Open-source (Free); commercial licenses available for additional features
**Key Features:**
- Visual programming and workflow management
- Integration with machine learning and AI libraries
- Extensive range of data transformation and analysis nodes
**Pros:**
- Highly flexible and extensible
- No programming is required for basic tasks
- Strong support for a variety of data
**Cons:**
- The full feature set can be costly
## Summing Up
In the rapid-fire world of data analytics, the evolution of AI tools has been a game-changer, offering unprecedented efficiency, accuracy, and insight. Our exploration has revealed the top 10 AI tools that stand out in the data analytics landscape, each with its unique strengths, from TensorFlow’s high-performance computation to Tableau’s intuitive data visualization. These tools are essential for anyone looking to navigate the vast seas of data and extract meaningful insights.
Navigating from data to decisions can be tricky, even with the best tech. That’s where Flatlogic shines. Known for crafting sturdy, scalable, and efficient [business software](https://flatlogic.com/), Flatlogic helps businesses harness their data’s full power. Whether it’s integrating AI analytics into your systems or creating custom solutions, Flatlogic is the go-to. Dive into the future of data analytics with Flatlogic’s advanced offerings, transforming data into a priceless resource. | alesiasirotka |
1,916,924 | Join Us on Gettr for Exclusive Bad Bunny Merch Updates! | Follow us on Gettr for exclusive updates, news, and discussions about Bad Bunny Merch. Be part of our... | 0 | 2024-07-09T07:23:24 | https://dev.to/badbunnymerch12/join-us-on-gettr-for-exclusive-bad-bunny-merch-updates-1n85 | badbunnymerch, gettr, exclusiveupdates | Follow us on Gettr for exclusive updates, news, and discussions about Bad Bunny Merch. Be part of our growing community and stay informed about the latest releases and offers. Join us on Gettr today!
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1,916,927 | Check Out Our Pupub for Bad Bunny Merch Content! | Visit our Pupub profile for exclusive content, updates, and discussions about Bad Bunny Merch.... | 0 | 2024-07-09T07:30:11 | https://dev.to/badbunnymerch12/check-out-our-pupub-for-bad-bunny-merch-content-o2k | badbunnymerch, pupub, exclusivecontent | Visit our Pupub profile for exclusive content, updates, and discussions about Bad Bunny Merch. Connect with other fans and stay informed about the latest products and offers. Follow us on Pupub today!
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1,916,928 | CA Final Topper May 2024 : Detailed Analysis | The CA final topper may 2024 is overseen by the ICAI, which evaluates expertise in accounting,... | 0 | 2024-07-09T07:31:09 | https://dev.to/samina_fatima_d743b381a14/ca-final-topper-may-2024-detailed-analysis-5h05 | cafinaltoppermay2024 |
The [**CA final topper may 2024**](https://studyathome.org/ca-exam-result-may-2024-date-toppers-pass-percentage/) is overseen by the ICAI, which evaluates expertise in accounting, auditing, taxation, law, and allied subjects. This establishes criteria for future applicants and identifies outstanding achievers. Students' dedication can win them a seat on the CA Final Result 2024 Topper list, a key professional milestone that will pave the route for success in the accounting sector.
The CA Intermediate and Final exams for May 2024 have already taken place. These are the specific exam dates:
The ICAI conducted the CA Intermediate examinations from May 3rd to May 17th, 2024, and the CA Final exams from May 2nd to May 16th, 2024.
Candidates are now anxiously anticipating the July publication of the CA Final May 2024 pass percentage. Keep your registration and roll number handy so you can verify your results online.
Additionally, if you have given ICAI with your email or phone number, you will get your **CA final topper may 2024** scorecards via email and SMS.
## CA Final May 2024: Examination Analysis
The actual publishing date for the CA Inter May 2024 results is yet unclear. Typically, the Institute of Chartered Accountants of India (ICAI) distributes results one to two months after the examinations are completed.
We are projecting the CA Final result May 2024 pass % based on tests taken between May 2nd and May 16th, 2024. However, this is a tentative estimate, as the ICAI may announce the findings sooner or later than expected.
## May 2024 CA Inter: Exam Results Update
The precise release date for the **CA final topper may 2024** conclusion from ICAI, like the CA Final outcomes, has yet to be determined. Nonetheless, based on previous tendencies, we may reasonably predict its release.
-
The CA Intermediate examinations for May 2024 were held between May 2nd and May 10th.
-
Typically, the ICAI reveals results around a month after the examinations have ended.
-
Following this tendency, we anticipate that the CA Final May 2024 pass % will be issued in July 2024.
-
However, it is crucial to realize that this is only an estimate, and the ICAI may announce the findings sooner or later than expected.
## CA Final May 2024 Results: Score Review
Attention, potential chartered accountants! This month is critical for **CA final topper may 2024** aspirants. Here's a quick list of significant dates to keep on your calendar, including the test period and the highly anticipated results announcement.
The following are the precise dates for the CA Final 2024 exams:
-
The May 2024 examinations are scheduled for the second, fourth, eighth, tenth, fourteenth, and sixteenth.
-
We are seeking ICAI approval to publicize the data and recognize the top performers in the CA Final May 2024 pass %.
## CA Inter May 2024 Exam Date Release
A position on the **CA final topper may 2024 list** is a noteworthy accomplishment for prospective chartered accountants. Candidates should take note of these exam dates so that they may plan their preparation accordingly.
The following are the main dates for the CA Intermediate May 2024 exam:
-
The tests are planned to take place between May 3rd and May 17th, 2024.
-
Following these tests, the results, which include the announcement of the CA Final topper for May 2024 and the acknowledgment of top performers, are scheduled to be revealed.
## CA May 2024: Inter & Final Exam Insights
To obtain the **CA Final result 2024 topper list**, simply follow these steps:
Here's a quick method to find your CA Inter May 2024 result date:
Step 1: Visit the Official Website. Begin the procedure by going to the official website.
Step 2: Enter your roll number. Enter your six-digit CA Final test roll number in the designated field.
Step 3: Enter your PIN and registration number. Enter your four-digit personal identification number (PIN) here. If you forget your PIN, you can use your CA Final registration number instead.
Step 4: Complete the CAPTCHA verification. Typing the essential text into the box confirms that you are not a robot.
Step 5: Check your results. Click on "SUBMIT".
## May 2024 CA Examination Highlights
The Institute of Chartered Accountants of India (ICAI) is yet to announce the highest scorer in the **CA Final result 2024 topper list**. Typically, the ICAI announces the results, which include the top achievers and merit list, around a month after the examinations have concluded.
It is expected that the ICAI will release the passing percentage and top candidate for the CA Inter Result 2024 in July 2024, following the completion of the May 2024 CA Intermediate and Final exams. However, it is crucial to remember that this timeframe is an estimate, and the announcement of the top rank may occur sooner or later than expected.
## May 2024 CA Exam Highlights
The Institute of Chartered Accountants of India (ICAI) is set to publish the **CA Final result 2024 topper list** shortly. This article digs into the critical pass rates for the CA examinations, which are required for students to assess the exam's difficulty and successfully organize their study.
Understanding these pass rates also helps to estimate results for the next CA Intermediate and Final examinations. The CA Final Exam for May 2024 was held from May 2 to May 16, and the CA Intermediate Exam from May 3 to May 17, 2024. To pass, applicants must score at least 40% on each paper and a total of 50% in each part.
In the November 2023 session, Group I recorded a pass rate of 9.46%, while Group II achieved 21.6%, and the overall pass percentage stood at 9.42%. Similar trends are anticipated in determining the **CA final topper may 2024**, highlighting the rigorous nature of the exam.
| samina_fatima_d743b381a14 |
1,916,929 | Hire MERN Stack Developers for Your Next Project | Hire MERN Stack Developers for Your Next Project to give your ideas technological wings and bring... | 0 | 2024-07-09T07:37:15 | https://dev.to/talentonlease01/hire-mern-stack-developers-for-your-next-project-3512 | mern |
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1,916,931 | Advancements in Leak Detection: The Evolution of Pipeline Monitoring | According to the new market research report "Pipeline Monitoring System Market by Pipe Type... | 0 | 2024-07-09T07:37:50 | https://dev.to/aryanbo91040102/advancements-in-leak-detection-the-evolution-of-pipeline-monitoring-30g4 | news | According to the new market research report "Pipeline Monitoring System Market by Pipe Type (Metallic, Non-Metallic), Technology (Ultrasonic, PIGs, Smart Ball, Magnetic Flux Leakage, Fiber Optic Technology), Solution, End-use Industry, and Region - Global Forecast to 2026", published by MarketsandMarkets™, the global Pipeline Monitoring System Market size is projected to grow from USD 13.2 billion in 2021 to USD 19.2 billion by 2026, at a CAGR of 7.8% from 2021 to 2026.
Download PDF Brochure: [https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=138709351](https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=138709351)
Browse in-depth TOC on "Pipeline Monitoring System Market"
97 – Tables
42 – Figures
171 – Pages
View Detailed Table of Content Here: [https://www.marketsandmarkets.com/Market-Reports/pipeline-monitoring-system-market-138709351.html](https://www.marketsandmarkets.com/Market-Reports/pipeline-monitoring-system-market-138709351.html)
The pipeline monitoring systems market is expected to witness high growth as a result of increased number of oil & gas leakages in production, pipelines, and storage tanks due to natural disasters and high pressure along with stringent government regulations for pipeline safety and security and expansion and upgradation of pipelines. The growth in trend of the development of new devices and solutions to monitor the pipeline performance, optimize the resources, automate the functions, and safeguard the operations fuels the growth of pipeline monitoring systems.
In terms of value, the metallic pipes segment is estimated to lead the pipeline monitoring system market in 2020.
The metallic pipes segment accounted for the largest market share in the pipeline monitoring system market. Ductile iron pipes, stainless steel pipes, aluminum pipes, and other types, such as cast-iron pipes, corrugated pipes, and copper pipes, are considered under metallic pipes. Iron-based pipes may get corrosive when treated with highly oxygenated water steam; thus, metallic pipes made with steel have a higher demand from the end-user industries. Metallic pipes are also more conducive to heat and less corrosion-resistant than non-metallic pipes.
In terms of value, leak detection is estimated to be the fastest-growing segment in the pipeline monitoring system market.
The leak detection segment is expected to grow at the highest CAGR from 2021 to 2026. This could be attributed to the increasing focus on improving the control over pipeline infrastructure and automating the process to improve productivity, which would enable the monitoring of the conditions of assets and raise an alarm in case of unauthorized events. One of the major reasons of leak detection application to grow includes, increase in investments from oil & gas companies in pipeline monitoring infrastructures and safe transportation of the material through it.
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The APAC region is projected to be the fastest-growing region in the pipeline monitoring system market during the forecast period.
The APAC region is projected to be the fastest-growing region in the Pipeline Monitoring System Market in terms of both value and volume from 2021 to 2026. This region is witnessing the highest growth rate due to the rapid economic expansion. According to the IMF, China and India are among the fastest-growing economies globally. India is expected to overtake China with the highest growth rate, thus driving the global economy. The expansion of existing pipelines and development of new ones increased incidents of oil and gas leakages in pipelines and storage tanks at production facilities, and formulation of stringent regulations by the governments for the implementation of leak detection technologies and systems in different countries of APAC, and rapidly growing industrial sectors are expected to drive the market in APAC.
Pipeline Monitoring System Market Key Players
Siemens AG (US), Honeywell International Inc. (US), Huawei Technologies Co. Ltd. (China), BAE Systems (UK), and TransCanada PipeLines Limited (Canada), amongst others, are the key players operating in the pipeline monitoring system market.
Siemens AG is a leading engineering and manufacturing company in Europe operating in the principal divisions of Digital Industries, Smart Infrastructure, Mobility and Siemens Healthineers, which together form the Industrial Businesses and Siemens Financial Services (SFS). These divisions represent the main activities of the company. Its focus is on the areas of electrification, automation, and digitalization. Siemens AG Gas and Power, which is headquartered in Houston, Texas, is the only company in the world that can provide fully integrated products, solutions, and services across the energy value chain of oil & gas production, power generation, and transmission. | aryanbo91040102 |
1,916,932 | Overview of GBase 8c B Compatibility Database | GBase 8c boasts powerful and rich plugin features, including support for the Dolphin Extension... | 0 | 2024-07-09T07:39:16 | https://dev.to/congcong/overview-of-gbase-8c-b-compatibility-database-5eba | database | GBase 8c boasts powerful and rich plugin features, including support for the Dolphin Extension Reference. This extension enhances MySQL compatibility (dbcompatibility='B', referred to as B compatibility database hereafter) in GBase 8c, covering keywords, data types, constants and macros, functions and operators, expressions, type conversions, DDL/DML/DCL syntax, stored procedures/custom functions, system views, and more.
The Dolphin plugin inherits the original SQL syntax of the kernel. This article briefly introduces the new/modified content for the kernel syntax.
## Installation and Usage Restrictions
### Using Dolphin
The plugin is automatically installed and loaded, requiring no manual installation.
1. Install GBase 8c.
2. Create a B database and connect to it using the initial user. The Dolphin plugin is enabled by default.
```sql
CREATE DATABASE dbname WITH DBCOMPATIBILITY='B';
\q
$ gsql -d dbname -p 15400 -U gbase
```
### Dolphin Usage Restrictions
- The Dolphin plugin is not supported in the mini version.
- The Dolphin plugin cannot be deleted.
- The Dolphin plugin can only be created in a B compatibility database.
- The Dolphin plugin needs to create data types, functions, etc., under schemas like pg_catalog. Therefore, loading the Dolphin plugin requires initial user privileges. GBase 8c automatically loads the Dolphin plugin the first time the initial user or a user with initial user privileges connects to the B database. If a B compatibility database has never been connected to by the initial user or a user with initial user privileges, the Dolphin plugin will not be loaded.
- All new/modified syntax in Dolphin cannot be viewed through the \h help command in the gsql client, nor does it support auto-completion in the gsql client.
- Creating the Dolphin plugin will delete any existing same-named functions and types required by the plugin and any dependent objects that existed previously.
- The Dolphin plugin depends on the public schema, so it does not support deleting the public schema using the drop schema method.
- When connecting to a B compatibility database with the Dolphin plugin installed, the GUC parameter behavior_compat_options will be modified by default, adding display_leading_zero and select_into_return_null options to maintain compatibility.
## Keyword Syntax Introduction
SQL has reserved and non-reserved words. According to standards, reserved words must not be used as other identifiers. Non-reserved words have special meanings in specific contexts but can be used as identifiers in other contexts. Identifiers must follow these naming conventions:
- Identifiers must be letters, underscores, digits (0-9), or dollar signs ($).
- Identifiers must begin with a letter (a-z) or an underscore (_).
### Notes
These naming conventions are recommended but not mandatory.
In special cases, double quotes or backticks (`) can be used to avoid errors caused by special characters.
Compared to native GBase 8c syntax, Dolphin introduces the following keyword modifications:
- Added MEDIUMINT as a non-reserved keyword.
- The keyword DATE can be used as a function.
- Added LAST_DAY as a reserved keyword to distinguish between the original GBase 8c LAST_DAY function and the Dolphin LAST_DAY function at the syntax level.
- Added GET_FORMAT as a non-reserved keyword for syntax recognition of the GET_FORMAT function.
- Added DAY_HOUR, DAY_MINUTE, DAY_SECOND, DAY_MICROSECOND, HOUR_MINUTE, HOUR_SECOND, HOUR_MICROSECOND, MINUTE_SECOND, MINUTE_MICROSECOND, SECOND_MICROSECOND as non-reserved keywords for the EXTRACT function to recognize corresponding units.
- Changed the keyword AUTHID level from RESERVED_KEYWORD to COL_NAME_KEYWORD, allowing it to be used as a table or column name.
- Changed the keyword BODY level from UNRESERVED_KEYWORD to RESERVED_KEYWORD.
- Added DUAL as a reserved keyword.
### Example
1. Create a table with FIXED(p,s), FIXED, decimal, and number types.
```
CREATE TABLE dec_type_t1
(
DEC_COL1 FIXED,
DEC_COL2 FIXED(20,5),
DEC_COL3 DECIMAL,
DEC_COL4 NUMBER
);
```
2. View the table structure.
```sql
\d dec_type_t1
```
The result will be:
```sql
Table "public.dec_type_t1"
Column | Type | Modifiers
--------+--------------+-----------
DEC_COL1|numeric(10,0) |
DEC_COL2|numeric(20,5) |
DEC_COL3|numeric(10,0) |
DEC_COL4|numeric |
```
These examples and notes illustrate the powerful features and compatibility improvements brought by the Dolphin plugin in GBase 8c. | congcong |
1,916,933 | What Role Does Blockchain Play in Securing Travel Transactions? | Blockchain technology is becoming crucial in ensuring safe and transparent transactions in the... | 0 | 2024-07-09T07:40:17 | https://dev.to/ravi_makhija/what-role-does-blockchain-play-in-securing-travel-transactions-5bb1 | blockchain, travelindustry, blockchaintechnology |
Blockchain technology is becoming crucial in ensuring safe and transparent transactions in the travel industry. It works like a digital ledger that records every transaction securely across a network of computers. This technology is transforming how bookings and payments are handled, offering enhanced security and efficiency.
## Understanding Blockchain Basics
Blockchain operates on principles of decentralization, transparency, and security. Instead of relying on a central authority, like a bank, blockchain allows direct transactions between parties. Each transaction is recorded in a block that connects to previous ones, forming a chain. This makes the records tamper-proof and trustworthy.
## How Blockchain Makes Travel Transactions Secure
**Decentralization:** Traditional travel transactions involve many middlemen, which can lead to delays and added costs. Blockchain removes the need for middlemen by allowing direct transactions. This lowers fees and reduces the risk of fraud.
**Immutable Records:** Once a transaction is recorded on the blockchain, it cannot be changed. This ensures that all transactions are transparent and cannot be altered, providing security and trust for travelers and businesses.
**Smart Contracts:** These are automated contracts that execute themselves when certain conditions are met. In travel, smart contracts can automate booking confirmations, refunds, and loyalty rewards, streamlining processes and reducing errors.
## Examples of Blockchain in Travel
**Secure Payments:** Blockchain allows for secure and fast payment processing using cryptocurrencies or digital tokens. This reduces currency exchange fees and speeds up transactions.
**Identity Verification:** Blockchain verifies identities securely, which is important for travel security checks and immigration processes. It helps prevent identity theft and ensures that travelers' information is protected.
**Supply Chain Management:** Blockchain improves transparency and efficiency in managing travel goods and services. It tracks luggage and manages hotel inventories accurately, improving service quality.
Benefits of Blockchain
**Enhanced Security:** Blockchain's decentralized nature and encryption make it highly secure against hacking and fraud, ensuring safer transactions for travelers and businesses.
**Cost Savings:** By cutting out middlemen and automating processes, blockchain lowers transaction costs for both travelers and companies, saving money and improving service efficiency.
**Trust and Transparency:** Blockchain's transparent nature builds trust by providing clear records of transactions. Travelers can verify bookings and payments easily, reducing disputes and improving overall confidence in the travel industry.
## Challenges and the Future
Despite its benefits, blockchain faces challenges like scalability and regulatory concerns. However, as technology advances and standards improve, these challenges are being addressed. **[The future of travel](https://www.gurutechnolabs.com/future-of-travel-trends-and-technology/)** will likely see more widespread use of blockchain, making transactions even more secure and efficient.
## Conclusion
Blockchain technology offers significant advantages for securing travel transactions, from reducing costs to improving trust and transparency. As the travel industry adopts blockchain solutions, travelers can expect safer and more reliable experiences. By understanding and leveraging blockchain's capabilities, the future of travel looks promising with enhanced security and efficiency.
| ravi_makhija |
1,916,934 | What are the advantages of attending a nursery school? | Introduction: The early years of a child's life are crucial for their development, and nursery... | 0 | 2024-07-09T07:40:30 | https://dev.to/kidskastlepreschool/what-are-the-advantages-of-attending-a-nursery-school-105n | **Introduction:**
The early years of a child's life are crucial for their development, and [nursery school](https://www.kidskastle.in/) plays a vital role in laying the groundwork for lifelong learning. Beyond vibrant classrooms and joyful laughter, these schools are essential for nurturing children's cognitive, social, and emotional growth. Through structured play, early academic exposure, and social interaction, nursery schools provide a supportive environment where children learn essential skills like communication, problem-solving, and emotional regulation. This early foundation not only prepares them for future academic challenges but also instills a love for learning and sets a positive way for their overall development and future success.
**Early Socialization and Emotional Growth:**
Nursery school is where children learn to share, communicate, and collaborate, which are essential skills for building confidence and forming friendships. Through interactive play and group activities, children develop empathy, emotional resilience, and the ability to navigate the complex world of human emotions—a skill set that serves them well throughout their lives.
**Academic Readiness and Cognitive Development:**
Nursery schools provide a structured yet playful setting where children engage in age-appropriate activities that stimulate their curiosity and ignite a passion for learning. From recognizing shapes to mastering the alphabet, these formative years establish a strong cognitive foundation that propels them towards academic success in the years to come.
**Independence and Self-Confidence:**
In the nurturing environment of nursery school, children take their first steps towards independence. They learn to perform tasks such as tying their shoes and packing their backpacks, fostering self-reliance and confidence. With encouragement and gentle guidance, they discover the thrill of personal achievements, contributing to their growing self-esteem.
**Language and Communication Skills: **
Language and communication skills flourish in the enriching environment of nursery school. Through storytelling, songs, and engaging conversations, children become articulate communicators, mastering the intricacies of language and expanding their vocabulary. These early linguistic abilities lay a solid groundwork for effective communication—a cornerstone in building lasting relationships and navigating the complexities of the modern world.
**Preparation for Formal Education:**
Nursery school serves as a gentle introduction to the structured routines and expectations of formal education. By acclimating children to classroom settings, schedules, and teacher-student interactions, nursery schools smooth the transition to kindergarten and beyond. They learn essential classroom etiquette, setting the stage for academic success and a lifelong love of learning.
**Holistic Development:**
Nursery schools foster holistic development, nurturing the mind, body, and spirit of each child. Physical activities promote motor skills and physical fitness, while creative arts unleash boundless imagination. Through a balanced curriculum that integrates play, exploration, and learning, nursery schools cultivate well-rounded individuals equipped to face the world with curiosity, resilience, and a zest for discovery.
**Support for Working Parents:**
For many families, nursery schools offer invaluable support by providing a safe, structured environment that aligns with parental work schedules. Knowing their children are in caring hands allows parents to focus on their careers, secure in the knowledge that their little ones are thriving and growing in a nurturing educational setting.
**Conclusion:**
[Nursery school](https://www.kidskastle.in/) equips children with the tools they need to navigate life's journey with curiosity, resilience, and boundless potential. It's more than a school—it's where dreams take root, and futures begin to blossom. In the hallowed halls of nursery school, every day is an adventure, every lesson a revelation, and every child a beacon of hope for tomorrow—a testament to the enduring advantages of early education.
**More information:**
Call us: +91-9916786150
Email us: admin@kidskastle.in
Website: [www.kidskastle.in](https://www.kidskastle.in/) | kidskastlepreschool | |
1,916,935 | What is Power BI? Exploring the Best Courses and Certifications to Advance Your Career | Unveiling the Power of Power BI: An Essential Guide In today’s rapidly evolving digital arena,... | 0 | 2024-07-09T07:41:39 | https://dev.to/educatinol_courses_806c29/what-is-power-bi-exploring-the-best-courses-and-certifications-to-advance-your-career-p3k | firstyearincode | Unveiling the Power of Power BI: An Essential Guide
In today’s rapidly evolving digital arena, mastering the capabilities of Power BI is paramount for business analysts seeking to gain a strategic advantage. The Microsoft Power BI, a premier tool developed by Leading the way in this analytical revolution is Microsoft. Professionals are able to extract meaningful insights from data by utilizing sophisticated visualizations and comprehensive reports. This blog delineates the principles of elucidating its curriculum, benefits, and the initial steps to embark on this rewarding journey.
Anticipations from a Power BI Course
The curriculum of a Executive Diploma In Power BI course varies based on the provider and the chosen proficiency level (beginner, intermediate, or advanced).
Checkout Power BI Course Here : https://shorturl.at/OwrW2
However, some core themes include:
Core Features: Mastering data importation, transformation, and modeling.
Data Visualization Techniques: Developing the skill to create clear, concise, and informative charts, graphs, and other visual tools.
Report and Dashboard Design: Gaining expertise in best practices for crafting interactive and lucid reports and dashboards.
DAX (Data Analysis Expressions): Understanding this formula language for bespoke calculations and enhanced data analysis.
The Significance of Power BI in Data Analysis
Checkout Power BI in Data Analysis : https://shorturl.at/ZFZTT
In the contemporary era, where data holds unparalleled value, Mastering Power BI — Data Modelling & DAX plays an indispensable role in data analysis. It endows users with the capability to manipulate data and extract insights efficiently and intuitively. The features of Power BI make it essential for exhaustive data analysis, generating reports, and uncovering insights to drive strategic business decisions.
Pivotal Features of Power BI
Checkout Diploma In Power BI: https://shorturl.at/fLvr5
Data Connectivity: Effortlessly connect to a vast array of data sources, both on-premises and cloud-based.
Data Visualization: Utilize interactive charts and graphs to present data with clarity and precision.
Data Modeling: Create robust data models to ensure data consistency and accuracy.
Data Manipulation and Transformation: Proficiently clean, transform, and manipulate data.
Interactive Reports and Dashboards: Develop and distribute engaging and interactive reports and dashboards.
Natural Language Q&A: Pose queries about your data in plain language, simplifying data exploration.
Choosing the Right Power BI Course
Selecting an appropriate Diploma In Power BI Power BI course, requires careful consideration of your goals, prior knowledge, and career ambitions. Here are several steps to assist you in choosing the optimal Power BI course:
Career Opportunities
Obtaining a Power BI certification opens up numerous career opportunities. Organizations worldwide recognize the value of data-driven decisions. A Power BI certification can distinguish you in the job market and enhance your prospects of securing roles such as Data Analyst, Business Intelligence Analyst, or Dashboard and Visualization Expert
Skill Development
Pursuing a Power BI certification by Uniathena facilitates significant skill development in several key areas. Learners can acquire:
Comprehensive Knowledge of Power BI Desktop and Service: Learn to connect, transform, and visualize data using both the Power BI desktop application and the cloud service.
Data Modeling and Reporting: Develop efficient data models and create compelling reports.
DAX and SQL Skills: Employ Data Analysis Expressions (DAX) and SQL to manipulate and derive insights from data.
Benefits for Batswana Professionals
Why Batswana Should Enroll in This Course
Botswana, much like Uganda, is experiencing a surge in data generation across various sectors. Effectively harnessing this data can propel the country towards greater economic and technological advancement.
Uniathena : https://shorturl.at/2p1Lp
Specific Benefits for Batswana People
Economic Development: Data-driven insights can help identify areas for growth and investment, driving economic prosperity.
Enhanced Employment Prospects: A Power BI certification can open doors to high-demand roles in data analysis and business intelligence within Botswana and internationally.
Empowerment and Innovation: Equipping individuals with Power BI skills fosters a culture of innovation, enabling Batswana to tackle local challenges with data-driven solutions.
Conclusion
Obtaining a Uniathena Power BI certification enables substantial skill development in a number of important areas. For professionals in Uganda and Botswana, acquiring Power BI skills offers numerous advantages, including enhanced career prospects, economic contributions, and the empowerment to drive local innovations. Investing in a Power BI course can be a transformative step for individuals and businesses alike, aligning with broader objectives of digital advancement and economic growth.
| educatinol_courses_806c29 |
1,916,936 | Design and Implementation of a Fault-Tolerant VPC Architecture with Multi-AZ High Availability on AWS | In today's digital era, ensuring high availability and fault tolerance for applications is paramount.... | 0 | 2024-07-09T07:42:44 | https://dev.to/jeshlin_pv_1628a63168e90/design-and-implementation-of-a-fault-tolerant-vpc-architecture-with-multi-az-high-availability-on-aws-oop | In today's digital era, ensuring high availability and fault tolerance for applications is paramount. AWS offers robust tools and services to help achieve these goals, making it possible to build resilient, scalable, and secure infrastructure. This blog will walk you through the design and implementation of a custom Virtual Private Cloud (VPC) infrastructure on AWS, focusing on fault tolerance and high availability across multiple Availability Zones (AZs).
**Introduction**
Creating a fault-tolerant architecture means designing systems that continue to operate even when some components fail. By leveraging AWS services such as VPC, subnets, Internet Gateway (IGW), NAT Gateway, Elastic Load Balancer (ALB), and Auto Scaling Groups, you can build a highly resilient infrastructure that ensures your applications remain available and performant.
**Project Overview**
The primary objective of this project is to set up a custom VPC with the following key components:
1. VPC: A custom VPC with a defined CIDR block.
2. Subnets: Two public subnets and two private subnets spread across two different Availability Zones (AZs) to ensure high availability.
3. Internet Gateway (IGW): Provides internet access to resources in the public subnets.
3. NAT Gateway: Allows instances in the private subnets to access the internet securely for updates and patches.
4. Route Tables: Separate route tables for public and private subnets to manage traffic routing.
5. Elastic Load Balancer (ALB): Distributes incoming traffic across multiple instances in different AZs.
6. Auto Scaling Group: Manages and scales instances in the private subnets automatically based on demand.
**Architecture Design**
**Multi-AZ Deployment**
Distributing resources across multiple AZs enhances fault tolerance by ensuring that an outage in one AZ doesn't bring down the entire system. This architecture includes:
Public Subnets: Two public subnets located in different AZs.
Private Subnets: Two private subnets located in different AZs.
**Internet Gateway and NAT Gateway**
An Internet Gateway is attached to the VPC to facilitate inbound and outbound internet traffic for public-facing resources. A NAT Gateway is deployed in one of the public subnets to provide internet access to instances in the private subnets, ensuring they can download updates and patches securely without exposing them directly to the internet.
**Route Tables**
Two separate route tables are configured:
Public Route Table: Directs traffic from public subnets to the Internet Gateway.
Private Route Table: Routes traffic from private subnets to the NAT Gateway.
**Elastic Load Balancer (ALB)**
The ALB is deployed in the public subnets across multiple AZs, distributing incoming traffic to healthy instances. This setup ensures continuous availability and load distribution, even if an instance or an AZ fails.
**Auto Scaling Group**
The Auto Scaling Group launches instances in the private subnets, ensuring that the application scales automatically based on demand. By spreading instances across multiple AZs, the architecture can withstand AZ-level failures and maintain the desired capacity.
**Fault Tolerance Features**
1. Multi-AZ Distribution: By deploying resources in multiple AZs, the architecture can handle the failure of an entire AZ without affecting the application's availability.
2. Elastic Load Balancer: The ALB automatically routes traffic to healthy instances. If an instance or an AZ fails, the ALB reroutes traffic to instances in other AZs.
3. Auto Scaling Group: Ensures that the application maintains the required number of instances, launching new ones in different AZs if some instances fail.
4. NAT Gateway: Using multiple NAT Gateways in different AZs can enhance fault tolerance, ensuring continuous internet access for instances in private subnets even if one NAT Gateway fails.
Benefits of the Architecture
5. Scalability: The Auto Scaling group adjusts the number of running instances based on demand, ensuring optimal resource usage.
6. High Availability: The multi-AZ deployment ensures that the application remains available even in the event of an AZ failure.
7. Security: The separation of public and private subnets enhances security by restricting internet access to internal resources.
8. Cost Efficiency: By automatically adjusting resources based on demand, the architecture helps minimize costs while maintaining performance.
Get the complete code [here](https://github.com/JESHLIN/cloud-infrastructure).
**Procedures for Using Terraform Commands**
Terraform is a powerful tool for managing infrastructure as code. By following these steps, you can efficiently create, manage, and destroy AWS infrastructure using Terraform. Below are the key procedures and commands you'll use:
**Step 1: Initialize the Project**
Initialize your Terraform project to download the necessary provider plugins.
```
terraform init
```
**Step 2: Validate the Configuration**
Validate your Terraform files to ensure there are no syntax errors.
```
terraform validate
```
**Step 3: Plan the Infrastructure Changes**
Generate an execution plan to see what changes Terraform will make to your infrastructure.
```
terraform plan
```
**Step 4: Apply the Infrastructure Changes**
Apply the changes specified in the execution plan to create or update your infrastructure.
```
terraform apply
```
**Step 5: Destroy the Infrastructure**
When you no longer need the infrastructure, you can destroy it using:
```
terraform destroy
```
**Conclusion**
Building a resilient and scalable VPC infrastructure on AWS involves leveraging various AWS services and best practices to ensure high availability and fault tolerance. By distributing resources across multiple AZs, utilizing load balancing, and implementing auto-scaling, you can create a robust environment capable of handling failures gracefully and maintaining continuous operation.
This architecture is an excellent foundation for deploying secure, scalable, and highly available applications on AWS, ensuring that your infrastructure can adapt to changing demands and withstand unexpected failures. | jeshlin_pv_1628a63168e90 | |
1,916,937 | From Dumb Data to Smart Responses: How RAG is Supercharging AI | Imagine if your smartphone could instantly access the entire internet to answer your questions.... | 0 | 2024-07-09T07:48:36 | https://dev.to/osama_66b9d07fabcf9b74b8d/from-dumb-data-to-smart-responses-how-rag-is-supercharging-ai-4jg6 | Imagine if your smartphone could instantly access the entire internet to answer your questions. Sounds like science fiction, right? Well, welcome to the world of RAG – Retrieval-Augmented Generation. It's not just another tech buzzword; it's a game-changer that's making AI smarter, more reliable, and incredibly powerful. Let's unpack this exciting technology and see why it's creating waves in the AI ocean.
## RAG 101: What's in the Acronym?
RAG stands for Retrieval-Augmented Generation. But what does that actually mean? Let's break it down:
- **Retrieval**: The ability to search and find relevant information
- **Augmented**: Enhancing or improving something
- **Generation**: Creating new content or responses
Put simply, RAG is a method that allows AI to pull information from a vast knowledge base and use it to generate better, more informed responses. It's like giving AI a supercharged library card and the skills of a master librarian.
## How Does RAG Work Its Magic?
Picture this: You're at a pub quiz, and you've got a smartphone hidden under the table (we won't tell). That's kind of how RAG operates for AI:
1. **The Question Round**: The AI receives a query or task.
2. **The Sneaky Search**: It quickly searches its vast database for relevant info.
3. **The Smart Selection**: It chooses the most useful pieces of information.
4. **The Winning Answer**: It crafts a response using the retrieved info and its language skills.
## Why is Everyone Raving About RAG?
RAG isn't just another AI party trick. It's solving some major challenges:
- **Freshness Guaranteed**: Unlike AI models stuck with outdated info, RAG can access the latest data.
- **Fact-Checker Extraordinaire**: By using reliable sources, RAG helps reduce those "Wait, did the AI just make that up?" moments.
- **Adaptability Ace**: New information? No problem. RAG systems can be updated without a complete overhaul.
- **Transparency Triumph**: It's easier to see where the AI got its information, making the whole process more trustworthy.
## RAG in the Real World
RAG isn't just living in research labs. It's out there making a difference:
🤖 **Customer Service Superstar**: Imagine chatbots that can actually solve your problems, not just frustrate you.
🔬 **Research Rocket Booster**: Scientists can find and connect information faster than ever.
✍️ **Content Creation Companion**: Writers and marketers, meet your new best friend for gathering facts and inspiration.
🏥 **Medical Mastermind**: Doctors can access the latest research to make informed decisions.
🗳️ **Fact-Checking Champion**: Helping to fight misinformation by quickly verifying claims.
## The Future is RAG-ing
As RAG technology evolves, the possibilities are mind-boggling:
- **Personalized Education**: Imagine an AI tutor that adapts to your learning style and pulls from the world's best resources.
- **Advanced Problem Solving**: Combining vast knowledge with AI reasoning could lead to breakthroughs in complex fields like climate science.
- **Language Barriers? What Barriers?**: RAG could power real-time translation that understands cultural nuances.
## The RAG-ing Conclusion
RAG is more than just another AI advancement – it's a bridge between the vast sea of human knowledge and the processing power of machines. As we continue to refine and expand this technology, we're stepping into an era where AI isn't just smart; it's insightful, current, and incredibly useful.
Remember, while RAG is making AI more powerful than ever, it's still a tool. The real magic happens when human creativity and critical thinking team up with these AI superpowers. So, are you ready to RAG and roll into the future of AI?
---
*Want to dive deeper into the world of RAG? Check out these resources:*
- [Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks](https://arxiv.org/abs/2005.11401) - The original research paper introducing RAG
- [Hugging Face RAG Tutorial](https://huggingface.co/blog/rag) - A beginner-friendly tutorial on implementing RAG
- [LangChain RAG](https://python.langchain.com/docs/use_cases/question_answering/how_to/vector_db_qa) - An open-source framework for building applications with LLMs, including RAG
- [OpenAI RAG Overview](https://platform.openai.com/docs/guides/retrieval) - OpenAI's guide to retrieval augmented generation
*What are your thoughts on RAG? How do you see it changing your industry? Share in the comments below!* | osama_66b9d07fabcf9b74b8d | |
1,916,938 | Python Learning... | **Just started Python Classes on 08-07-2024 with print functions... kaniyam #python | 0 | 2024-07-09T07:49:01 | https://dev.to/nagaraj222059/python-learning-1n97 | **Just started Python Classes on 08-07-2024 with print functions...
#kaniyam #python | nagaraj222059 | |
1,916,939 | Python Lesson 1 | Introduction Print statement Comments Syntax | 0 | 2024-07-09T07:49:34 | https://dev.to/s_dhivyabharkavi_42e8315/python-lesson-1-21m5 | Introduction
Print statement
Comments
Syntax
| s_dhivyabharkavi_42e8315 | |
1,916,940 | NVIDIA RTX 3090 vs RTX 4070: A Comprehensive Comparison for High-End GPU Users | Introduction In the realm of high-performance graphics processing, the NVIDIA RTX 3090 and... | 0 | 2024-07-09T09:30:00 | https://dev.to/novita_ai/nvidia-rtx-3090-vs-rtx-4070-a-comprehensive-comparison-for-high-end-gpu-users-2mgh | ## Introduction
In the realm of high-performance graphics processing, the NVIDIA RTX 3090 and the RTX 4070 stand as towering figures, each offering a unique set of capabilities to the discerning user. Whether you're an enthusiast gamer, a professional content creator, or a researcher in need of cutting-edge computational power, understanding the nuances between these two GPUs is crucial. This article will guide you through a detailed comparison, exploring performance benchmarks, memory and bandwidth, ray tracing and AI capabilities, power consumption, and the value proposition of each GPU. Additionally, we'll delve into how Novita AI GPU Pods can provide access to the NVIDIA RTX 3090's power through cloud-based solutions.
## Overview of RTX 3090
Released in September 2020, the RTX 3090 has been a staple for enthusiasts and professionals seeking unparalleled performance. Built on NVIDIA's Ampere architecture, it boasts 24GB of GDDR6X memory and 10496 CUDA cores. The RTX 3090 is designed for extreme gaming, 8K resolution, and demanding computational tasks, making it a favorite among gamers, content creators, and researchers.
## Overview of RTX 4070
The RTX 4070, part of the newer Ada Lovelace series, was introduced with several architectural advancements over its predecessors. It features 12GB of GDDR6 memory and a streamlined core count optimized for efficiency and performance. Aimed at providing high performance at a more accessible price point, the RTX 4070 caters to both gamers and professionals looking for a balance between cost and capability.
## Performance Benchmarks
### Gaming Performance
For gamers, frame rates and resolution capabilities are critical. The RTX 3090 excels in delivering smooth gameplay at 4K and even 8K resolutions, thanks to its massive memory bandwidth and core count. The RTX 4070, while not as powerful as the 3090, offers impressive performance at 1440p and 4K, with enhanced ray tracing and DLSS capabilities that improve visual quality and frame rates.
### Professional and Creative Workload Performance
In professional settings, the RTX 3090's 24GB of memory is invaluable for tasks like 3D rendering, video editing, and AI training. It significantly reduces rendering times and handles large datasets with ease. The RTX 4070, with its efficient architecture, performs admirably in similar tasks, offering a cost-effective solution for professionals who do not require the absolute peak performance of the 3090.
## Memory and Bandwidth
### VRAM Specifications
The Video RAM (VRAM) in a GPU plays a crucial role in handling high-resolution textures, large datasets, and complex scenes. The RTX 3090 is equipped with a massive 24GB of GDDR6X VRAM, which is among the highest available in consumer GPUs. This significant memory capacity allows for seamless 8K gaming, large-scale 3D rendering projects, and extensive machine learning tasks without performance bottlenecks.
On the other hand, the RTX 4070 comes with a more modest 12GB of GDDR6 VRAM. While this is only half the capacity of the RTX 3090, it is still substantial for most gaming and professional applications. The 12GB VRAM is sufficient for 4K gaming, video editing, and other demanding tasks, making it a well-rounded choice for users who do not need the extreme capabilities of the RTX 3090.
### Memory Bandwidth
Memory bandwidth is a critical factor in determining how quickly data can be read from or written to the VRAM. The RTX 3090 features a memory bandwidth of 936.2 GB/s, thanks to its 384-bit memory bus and high-speed GDDR6X memory. This high bandwidth ensures that the GPU can handle large amounts of data rapidly, which is essential for high-resolution gaming and intensive computational tasks.
The RTX 4070, although equipped with a narrower 192-bit memory bus, still manages to deliver a respectable memory bandwidth of 504.2 GB/s. This is achieved through the use of efficient GDDR6 memory. While it may not match the raw bandwidth of the RTX 3090, the RTX 4070's bandwidth is more than adequate for most users, providing smooth performance in gaming and professional applications.
## Ray Tracing and AI Capabilities
### Ray Tracing Performance
Ray tracing technology has revolutionized the way lighting, shadows, and reflections are rendered in games, offering a more realistic and immersive visual experience. The RTX 3090 excels in this area with its 82 Ray Tracing (RT) cores, providing exceptional performance in ray-traced games and applications. It delivers stunning visuals at 4K and even 8K resolutions, maintaining high frame rates in the latest ray-traced titles.
The RTX 4070, equipped with 36 RT cores, also offers impressive ray tracing capabilities, particularly for its price point. While it may not achieve the same level of performance as the RTX 3090 in the most demanding ray-traced games, it still provides a high-quality ray tracing experience at 1440p and 4K resolutions. The RTX 4070's ray tracing performance is bolstered by advancements in NVIDIA's RTX technology, making it a strong contender for gamers looking for a balance between visuals and performance.
### AI Processing
AI processing has become increasingly important in modern GPUs, with applications ranging from deep learning to gaming enhancements. The RTX 3090 is a powerhouse in AI processing, featuring 328 Tensor Cores designed for AI computations. These Tensor Cores enable features like NVIDIA DLSS (Deep Learning Super Sampling), which uses AI to upscale lower-resolution images in real-time, providing higher frame rates without compromising image quality. This makes the RTX 3090 ideal for AI research, deep learning tasks, and achieving superior gaming performance with DLSS.
The RTX 4070, with its 96 Tensor Cores, also supports AI-driven features like DLSS, enhancing gaming performance and visual fidelity. While it has fewer Tensor Cores compared to the RTX 3090, the RTX 4070 still delivers robust AI processing capabilities, making it suitable for a range of applications from gaming to professional AI workloads. Its AI processing power is sufficient for most users, offering a significant performance boost in supported games and applications.
## Novita AI GPU Pods: Harnessing the Power of NVIDIA RTX 3090
Novita AI GPU Pods provide access to the power of NVIDIA RTX 3090 GPUs and RTX 4090 through the cloud. Novita AI GPU Pods, which offers a robust platform for developers to harness the capabilities of high-performance GPUs. These pods are tailored to meet the needs of complex computational tasks and are equipped with the latest technology to ensure optimal performance. By choosing Novita AI GPU Pods, developers can efficiently scale their GPU resources and focus on their core development activities without the hassle of managing physical hardware. For more information on how to get started with Novita AI GPU Pods, interested parties can visit their official website at the provided link. Join Novita AI Community to discuss!
## Conclusion
The NVIDIA RTX 3090 and RTX 4070 are both formidable GPUs, each with its strengths and ideal use cases. By examining their performance, memory capabilities, power consumption, and value, you can make an informed decision on which GPU is the right fit for your needs. And for those seeking the power of the RTX 3090 without the hardware investment, Novita AI GPU Pods offer a compelling alternative.
## Frequently Asked Questions
### Should I get a new RTX 4070 or a used 3090 for nearly the same price?
If you can drop another $600-$700 on a GPU 2 years from now then the 3090 is gonna be a great option. Otherwise the new 4070 is going to have more longevity. Especially as more and more games adopt frame generation.
### Is 750W enough for RTX 4070?
If you're uninterested in future-proofing or just want to keep costs down for this build, then you'll be alright with a 750W PSU.
### What CPU to pair with 4070?
AMD Ryzen 7 7800X3D. Best CPU for the RTX 4070 and 4070 Ti.
Intel Core i5–13600K. Best Intel CPU for the 4070 and 4070 Ti.
AMD Ryzen 9 7950X3D. The most powerful AMD CPU.
AMD Ryzen 5 7600X. Best budget CPU for the RTX 4070 and 4070 Ti.
> Originally published at [Novita AI](blogs.novita.ai/nvidia-rtx-3090-vs-rtx-4070-a-comprehensive-comparison-for-high-end-gpu-users//?utm_source=dev_llm&utm_medium=article&utm_campaign=3090-vs-4070)
> [Novita AI](https://novita.ai/?utm_source=dev_llm&utm_medium=article&utm_campaign=nvidia-rtx-3090-vs-rtx-4070-a-comprehensive-comparison-for-high-end-gpu-users), the one-stop platform for limitless creativity that gives you access to 100+ APIs. From image generation and language processing to audio enhancement and video manipulation, cheap pay-as-you-go, it frees you from GPU maintenance hassles while building your own products. Try it for free.
| novita_ai | |
1,916,944 | Ethical Considerations in Developing TikTok Watermark Removal Tools | In the ever-evolving landscape of social media, TikTok has emerged as a dominant platform for... | 0 | 2024-07-09T07:51:54 | https://dev.to/elisaray/ethical-considerations-in-developing-tiktok-watermark-removal-tools-3pg6 | tiktok, watermarkremovaltools, powerapps, flutter | In the ever-evolving landscape of social media, TikTok has emerged as a dominant platform for short-form video content. With its explosive growth, a new market has emerged for tools that remove TikTok's watermarks from videos. While these tools may seem innocuous at first glance, they raise significant ethical questions for app developers.
This article explores the ethical considerations surrounding the development of TikTok watermark removal tools, examining the implications for content creators, platforms, and the broader digital ecosystem.
## **Understanding TikTok's Watermark**
Before delving into the ethical implications, it's crucial to understand the purpose of TikTok's watermark. The watermark, which includes the TikTok logo and the creator's username, serves several functions:
**1. Brand recognition:** It promotes TikTok's platform across the internet.
**2. Creator attribution:** It ensures that content creators receive credit for their work.
**3. Content tracking:** It allows TikTok to monitor the spread of its content across other platforms.
## **The Rise of Watermark Removal Tools**
Despite TikTok's efforts to protect its content, there has been a surge in demand for watermark removal tools. This demand stems from various motivations:
**1. Cross-platform sharing:** Users want to share content on other platforms without TikTok branding.
**2. Content repurposing:** Creators may wish to repurpose their TikTok content for other uses.
**3. Avoiding attribution:** Some users may want to share content without crediting the original creator.
As app developers consider creating tools to meet this demand, they must grapple with several ethical considerations.
## **Ethical Considerations for Developers**
### **1. Intellectual Property Rights**
At the core of the ethical debate is the question of intellectual property rights. TikTok's terms of service grant the platform certain rights to user-generated content, including the right to add watermarks. By developing tools to remove these watermarks, developers may be facilitating the violation of these terms.
**Ethical questions to consider:**
- Are we undermining TikTok's legitimate business interests?
- Are we potentially enabling copyright infringement?
### **2. Creator Attribution and Fair Compensation**
TikTok's watermark ensures that creators are credited for their work, which can lead to followers, brand deals, and other opportunities. Removing the watermark could deprive creators of due recognition and potential income.
**Ethical questions to consider:**
- Are we contributing to a system that devalues creative work?
- How can we ensure fair attribution in a watermark-free environment?
### **3. Platform Ecosystem and User Agreement**
TikTok's success relies on a thriving ecosystem of creators and viewers. Watermark removal tools could disrupt this ecosystem by encouraging content to be shared off-platform, potentially reducing engagement on TikTok itself.
**Ethical questions to consider:**
- Are we violating the spirit of TikTok's user agreement?
- Could our tools negatively impact the platform that creators rely on?
### **4. Privacy and Data Protection**
Some watermark removal tools may require users to upload TikTok videos to third-party servers. This raises concerns about data protection and user privacy.
**Ethical questions to consider:**
- How can we ensure the security of user data?
- Are we exposing users to potential privacy breaches?
### **5. Misinformation and Content Verification**
TikTok's watermark serves as a form of content verification. Removing it could make it easier for bad actors to spread misinformation or manipulated content.
**Ethical questions to consider:**
- Could our tools be misused to spread fake news or deepfakes?
- How can we promote responsible use of our technology?
### **6. Fair Competition and Innovation**
While watermark removal tools may seem to conflict with TikTok's interests, they could also be seen as a form of healthy competition that drives innovation in the social media space.
**Ethical questions to consider:**
- Are we promoting fair competition and innovation?
- How can we balance respect for TikTok's platform with the right to develop new tools?
## **Navigating the Ethical Landscape**
Given these complex ethical considerations, how can developers proceed responsibly? Here are some guidelines:
### **1. Transparent Communication**
Be clear about the purpose and limitations of your tool. Educate users about the potential legal and ethical implications of removing watermarks.
### **2. Encourage Attribution**
Design your tool to encourage users to credit original creators, even when the watermark is removed. This could include features that make it easy to add credit lines or links back to the original content.
### **3. Respect Platform Policies**
While it may be tempting to circumvent platform restrictions, consider working within TikTok's developer ecosystem instead. Explore opportunities to create tools that add value without violating terms of service.
### **4. Prioritize Data Protection**
If your tool requires processing user content, implement robust security measures to protect user data and privacy.
### **5. Promote Responsible Use**
Develop features that discourage misuse, such as limits on bulk processing or checks for copyright-protected content.
### **6. Engage in Dialogue**
Participate in industry discussions about ethical app development. Engage with content creators, platforms, and other stakeholders to understand their concerns and perspectives.
## **The Broader Context: TikTok's Business Model and Clones**
To fully appreciate the ethical landscape, it's important to understand [TikTok's business model](https://whitelabelfox.com/tiktok-business-model-how-tiktok-makes-money/) and its impact on the social media ecosystem. TikTok has revolutionized short-form video content, leading to numerous clones and imitators.
Moreover, the success of TikTok has spawned a market for white-label solutions and clones. Developers interested in creating similar platforms might find value in exploring options like the [TikTok Lite Clone](https://whitelabelfox.com/tiktok-lite-clone/), which offers a streamlined version of the TikTok experience.
These resources provide context for the broader ecosystem in which watermark removal tools operate, highlighting the complex interplay between original platforms, clones, and auxiliary tools.
## **Conclusion: Balancing Innovation and Ethics**
The development of TikTok watermark removal tools sits at the intersection of innovation, user demand, and ethical responsibility. While there is clearly a market for such tools, developers must carefully navigate the ethical implications of their work.
By prioritizing transparency, encouraging attribution, respecting platform policies, protecting user data, promoting responsible use, and engaging in ongoing dialogue, developers can strike a balance between meeting user needs and upholding ethical standards.
Ultimately, the goal should be to foster an ecosystem where innovation thrives, creators are fairly compensated, platforms can sustainably operate, and users have access to tools that enhance their digital experience—all while maintaining a strong ethical foundation.
As the social media landscape continues to evolve, so too will the ethical considerations surrounding content creation and sharing. Developers of watermark removal tools and other auxiliary apps have a unique opportunity—and responsibility—to shape this landscape in a positive direction, promoting creativity, fair use, and ethical engagement in the digital age.
By thoughtfully addressing these ethical considerations, developers can contribute to a more robust, fair, and innovative social media ecosystem that benefits creators, platforms, and users alike.
If you're considering developing a TikTok Watermark Removal App while keeping these ethical considerations in mind, [White Label Fox](https://whitelabelfox.com/) can assist you in creating it. Their expertise in social media app development can help ensure that your app balances functionality with ethical responsibility. | elisaray |
1,916,945 | GSAP vs. Framer Motion: Which Animation Library Should You Choose for Your Creative Web Projects? | When it comes to creating portfolios or other creative websites, the choice between GSAP (GreenSock... | 0 | 2024-07-09T07:56:45 | https://dev.to/sharoztanveer/gsap-vs-framer-motion-which-animation-library-should-you-choose-for-your-creative-web-projects-4d02 | webdev, animation, gsap, react | When it comes to creating portfolios or other creative websites, the choice between GSAP (GreenSock Animation Platform) and Framer Motion can be challenging. As a developer with experience in both agency and freelance settings, I've encountered both libraries' strengths and weaknesses. Here's a breakdown to help you decide which to use for your projects.
## GSAP: The Powerhouse of Web Animations
### Pros:
- **Versatility and Power:** GSAP is incredibly powerful, capable of creating almost any kind of animation. It comes with built-in modules like text splitting, randomisation, and morphing.
- **Wide Framework Compatibility:** One of GSAP's biggest advantages is its compatibility with various frameworks, including `React`, `Vue.js`, and `Astro`. This makes it a must-learn tool for developers who work with multiple frameworks.
- **Strong Community Support:** GSAP's community is extensive and active, thanks to its longevity. This means you'll find plenty of resources, forums, and tutorials to solve any problem you might encounter.
- **Advanced Features:** GSAP's timeline feature is unparalleled, making it easy to create complex, sequenced animations.
### Cons:
- **Cost:** Some of GSAP's advanced features are behind a paywall, which might not be ideal for budget-conscious projects.
- **Integration with React:** While GSAP works with `React`, the integration isn't seamless. Developers need to take extra steps, such as using hooks and managing cleanup processes, which can complicate the development experience.
## Framer Motion: The React Solution
### Pros:
- **Declarative Approach:** Framer Motion is built for `React` and uses a declarative approach, making it more intuitive for `React` developers. This aligns well with React's functional programming style.
- **Performance Optimisation:** With features like motionValue, Framer Motion optimises performance by only re-rendering components that actually change, avoiding the overhead of frequent state updates.
- **Animate Presence:** This feature allows for smooth animations when components enter or leave the DOM, making it ideal for transitions between pages or adding/removing items from lists.
- **Simplicity:** Framer Motion's simplicity and small set of tools encourage developers to think creatively and develop custom solutions, which can enhance their skills over time.
### Cons:
- **Limited Scope:** Framer Motion is not as comprehensive as GSAP. It provides essential tools for animations but leaves more complex requirements to the developer's ingenuity.
- **React-Only:** Unlike GSAP, Framer Motion is designed exclusively for `React`. This makes it less versatile if you work with multiple frameworks.
## Conclusion: Learn Both
Ultimately, both GSAP and Framer Motion have their own unique advantages. If you're focused on `React`, start with Framer Motion for its seamless integration and ease of use. However, GSAP's power and versatility make it a valuable tool for any developer's toolkit, especially when working outside the `React` ecosystem.
By learning both libraries, you'll be well-equipped to handle any animation requirements, regardless of the framework.
Happy coding! | sharoztanveer |
1,916,946 | Top Reasons to Hire a Student Loan Defense Attorney | Student loan debt is a growing concern for millions of Americans. As the financial strain... | 0 | 2024-07-09T07:52:58 | https://dev.to/alexa_jen_a751d594be77fd1/top-reasons-to-hire-a-student-loan-defense-attorney-116a | beginners, tutorial, career | Student loan debt is a growing concern for millions of Americans. As the financial strain intensifies, many borrowers find themselves in need of professional legal assistance. Hiring a Student Loan Defense Attorney can provide numerous benefits and help you regain control over your financial future. Here are the top reasons to consider this crucial step.
**1. Expert Legal Guidance**
Student loan laws and regulations are complex and constantly evolving. A Student Loan Defense Attorney has the expertise and up-to-date knowledge to guide you through these intricacies. They can explain your rights and options, helping you make informed decisions about your debt.
**2. Negotiating Debt Settlement**
If you're struggling to repay your loans, a Student Loan Debt Settlement Attorney can negotiate with your lenders to reduce the amount you owe. They have the skills to secure more favorable terms, potentially lowering your debt significantly.
**3. Protection from Debt Collectors**
Aggressive debt collection tactics can be intimidating and stressful. Student Loan Debt Attorneys can shield you from harassment by handling communications with debt collectors and ensuring they comply with the law. This protection can provide much-needed relief and peace of mind.
**4. Defense Against Lawsuits**
Being sued over student loan debt is a serious matter that requires expert legal representation. A Student Loan Defense Attorney can develop a robust defense strategy, represent you in court, and work towards a dismissal or settlement of the lawsuit.
**5. Assistance with Default and Delinquency**
Falling behind on your student loan payments can lead to default, which has severe consequences. An attorney can help you explore options such as loan rehabilitation, consolidation, or income-driven repayment plans to get back on track and avoid further penalties.
**6. Resolving Disputes and Errors**
Errors in your loan account or unfair lending practices can exacerbate your financial troubles. A Student Loan Debt Attorney can identify and dispute these issues, ensuring your loan terms are accurate and just.
**7. Long-term Financial Planning**
Beyond immediate legal issues, a Student Loan Defense Attorney can assist with long-term financial planning. They can help you develop strategies to manage your debt more effectively, improve your credit score, and achieve financial stability.
**Conclusion**
Dealing with student loan debt can be daunting, but you don't have to face it alone. Hiring a Student Loan Defense Attorney offers numerous advantages, from expert legal advice to protection from aggressive debt collectors. By leveraging their expertise, you can navigate the complexities of student loan debt more effectively and work towards a more secure financial future. If you're struggling with student loan debt, consider consulting with a Student Loan Debt Attorney to explore your options and take proactive steps towards resolution.
| alexa_jen_a751d594be77fd1 |
1,916,948 | Fraud Awareness : Stay Vigilant with Tips from Our Detectives | India's most favored Detective organization has begun its administrations all over India. The... | 0 | 2024-07-09T07:59:23 | https://dev.to/detectivegency25/fraud-awareness-stay-vigilant-with-tips-from-our-detectives-1opg | detectiveagencyinindia, privatedetectivesinindia, investigationinindia |
India's most favored Detective organization has begun its administrations all over India. The **National Detective Agency** is the most solid and best detective organization that works in the whole nation because of its tremendous Investigators organization.
1.Administrations offered by Best detective agency in India
2.Pre Marriage Investigation
3.Post Matrimonial Verification
4.Dedication Test
5.Separation Cases
6.Monetary Fraud Investigation
7.Sting Operation
8.Observation
## About Best Detective Agency in India
Detective in India has accomplished an alternate position serving individuals all over India. We have addressed a portion of the large high profile cases in India. Private [investigators](https://nationaldetectives.in/corporate-detective-service/) are very much enhanced.
## The agent for employ Detective Agency in India
Best detective agency in India is an unimaginably well known set-up. The name you can trust. It's anything but a gathering of significantly Proficiency and Experienced Agents having specific association with different fields. They are expert of assessment, private checks, and demands for business, singular organizations, movable and immovable assets affirmation, corporate organizations including criminal assessment, consultancy Legal, and explicit organizations are moreover being given by our genuine trained professionals. Our Agency offers responses to clients genuinely, quickly, and cost reasonably relating to our organizations.
We are good to go for the latest. Our most noteworthy quality is that we are a forward Generation Detective Agency, working from comparable working environments since the time we got into the business.
## Why should you pick only the best detective agency in India?
Most importantly, since we are the best detective agency in India from your own place., the handpicked extreme and arranged sharp male and female administrators. Our middle quality is Private Investigations in India's metropolitan spaces of Patna, Bangalore, Delhi, Noida, Ahmadabad. As National Detective is a local association, having close administrators, we know the language, history, knowing the people, places, officials, the incredible and miscreants around, every road, specialties and corners, the close by condition at its best, thus it makes us the best office to oversee. We have colleagues and contacts from any place in India, etc are not a lot of reasons why you should simply pick the **best detective agency in India**.
Notwithstanding the way that there are more than by far most of them are Security Agencies anyway assurance to be Detectives moreover, you can't expect a well being official or even a security official to coordinate secret assessments. Moreover, off late many have jumped up in India, even Marriage Bureau's, Placement Agencies, Mobile Phone Shop, Wine Shops, Beauty Parlours, Recovery Agencies, Advocates and surprisingly Small Criminals elevate to be examiners as needs be, one should be wary prior to revealing their insider realities to others. To be an examiner one should have the principal exceptional wellness, getting ready, insight, and most fundamentally the personality of the main level, other than it can't be low support fill in as it requires complete commitment and dedication.
## Conclusion
Our Agency's name says all that we are essentially [best detective agency in India](https://nationaldetectives.in/) with a strong closeness delivering organizations for all years. In general we are capable and experienced assurance pioneers. When there is a request you should be answered, we will help.
| detectivegency25 |
1,916,949 | Microservices Project | ⚙️Microservices project is inspired by piggymetrics by @sqshq "Alexander Lukyanchikov", but this... | 0 | 2024-07-09T07:59:47 | https://dev.to/dmsosa/microservices-project-4bcm | springboot, microservices, java |
⚙️Microservices project is inspired by piggymetrics by @sqshq "Alexander Lukyanchikov", but this implementation uses PostgreSQL and a simpler business logic, the main goal of this project is to show an example of microservices architecture.
TechStack: PostgreSQL, Spring, Docker
I'm thinking about what could be added to the project, currently working in providing a Swagger Documentation for it, but would like to hear your opinion.
I would like to know what errors there are in the project, what you think about it, and what could be added to make it more complete.
I'm currently learning about message brokers like RabbitMQ and Kafka, I think that would be a good new feature for the project.
You can find the repo here, simply clone it and you can run it in your local machine with an In-Memory H2 database.
to continue without registration:
username: demo
password: password
| dmsosa |
1,916,952 | Javascript Promis | JavaScript promises asinxron operatsiyalarni boshqarishning qulay usullaridan biri hisoblanadi.... | 0 | 2024-07-09T08:04:18 | https://dev.to/bekmuhammaddev/javascript-promis-27bn | javascript, promis, aripovdev, frontend |
JavaScript promises asinxron operatsiyalarni boshqarishning qulay usullaridan biri hisoblanadi. promises kelajakda bajarilishi yoki muvaffaqiyatsiz tugashi mumkin bo'lgan qiymatlarni ifodalaydi. Ular asinxron operatsiyalarning natijalarini boshqarish uchun ishlatiladi va callback funksiyalar bilan bog'liq muammolarni kamaytiradi.
**promis table**
_promises yaratish_
JavaScript-da promis yaratish uchun Promise konstruktoridan foydalaniladi.
```
let myPromise = new Promise((resolve, reject) => {
let success = true; // Bu yerda sizning asinxron operatsiyangiz bo'lishi mumkin
if (success) {
resolve("Bu operatsiya muvaffaqiyatli tugadi!");
} else {
reject("Bu operatsiya muvaffaqiyatsiz tugadi.");
}
});
```
- resolve
- reaject
resolve va reject funksiyalari JavaScript promises asinxron operatsiyalarning natijasini boshqarish uchun ishlatiladi.
**resolve**
resolve funksiyasi promis muvaffaqiyatli bajarilganda chaqiriladi. Bu funksiya o'ziga argument sifatida biror qiymat oladi, va bu qiymat keyinchalik .then() metodiga uzatiladi.
```
let Promise = new Promise((resolve, reject) => {
let success = true; // Bu yerda sizning asinxron operatsiyangiz bo'lishi mumkin
if (success) {
resolve("Bu operatsiya muvaffaqiyatli tugadi!");
}
});
```
Yuqoridagi misolda, success o'zgaruvchisi true bo'lsa, resolve funksiyasi chaqiriladi va "Bu operatsiya muvaffaqiyatli tugadi!" qiymatini uzatadi.
then metodi orqali cansole.log da natijani chiqarish:
```
Promise.then((result) => {
console.log(result); // "Bu operatsiya muvaffaqiyatli tugadi!" ni cansole.log da chiqaradi
});
```
**reject**
reject funksiyasi promis muvaffaqiyatsiz tugaganda chaqiriladi. Bu funksiya o'ziga argument sifatida biror xatolik yoki muvaffaqiyatsizlik haqidagi ma'lumotni oladi, va bu qiymat keyinchalik .catch() metodiga uzatiladi.
```
let mPromise = new Promise((resolve, reject) => {
let success = false; // Bu yerda sizning asinxron operatsiyangiz bo'lishi mumkin
if (!success) {
reject("Bu operatsiya muvaffaqiyatsiz tugadi.");
}
});
```
Yuqoridagi misolda, success o'zgaruvchisi false bo'lsa, reject funksiyasi chaqiriladi va "Bu operatsiya muvaffaqiyatsiz tugadi." qiymatini uzatadi.
```
mPromise
.then((result) => {
console.log(result); // Bu yerga kirmaydi keyingi blockga o'tadi
})
.catch((error) => {
console.error(error); // "Bu operatsiya muvaffaqiyatsiz tugadi." ni cansole.logda chop etadi
});
```
| bekmuhammaddev |
1,916,953 | How to Earn More Hamster Coin: Daily Combo & Daily Cipher | Hamster Kombat is a viral faucet-to-earn crypto mini-app game on Telegram, fascinating players with... | 0 | 2024-07-09T08:05:55 | https://dev.to/nishantbijani/how-to-earn-more-hamster-coin-daily-combo-daily-cipher-4g33 | dailycombodailycipher, hamsterkombet, taptoearngame, cryptogame | Hamster Kombat is a viral faucet-to-earn crypto mini-app game on Telegram, fascinating players with its specific mix of clicker mechanics and strategic gameplay. In this game, you step into the position of a hamster CEO walking a fictional crypto exchange. Your venture is to grow your startup by making smart investments in regions like advertising and marketing, licenses, expertise, and new products.
The Telegram sport's enticing nature, combined with the promise of an upcoming token release and airdrop on The Open Network (TON), has attracted tens of millions of players. The combo of simple gameplay, strategic depth, and the capability of real-world rewards makes [**Hamster Kombat**](https://www.codiste.com/kombat-hamster-how-to-develop-a-telegram-bot) immensely popular.
## What Is Hamster Kombat Daily Combo?
The Daily Combo is one of the most profitable functions in Hamster Kombat, offering day-by-day rewards to active players. Combo cards are a set of three cards launched each day in Hamster Kombat that grant players five million free in-sport coins. Combo playing cards may be discovered inside the Mine section of Hamster Kombat in classes like Markets, PR&Team, Legal, and Specials.
Players should purchase distinct themed playing cards using recreation cash, and a day-by-day blend set of 3 cards can convey the person 5 million free in-sport cash. The [**Hamster Kombat Daily Combo**](https://www.cyberkendra.com/p/hamster-kombat-daily-combo-cards.html) feature allows a maximum of 3 tries according to day, with every try limited to a certain number of actions.
Finding mixture cards is similar to finding a needle in a haystack, as it depends on luck and might require spending an unreasonable amount of cash. Community accounts on social networks proportion everyday combo cards, aiding gamers in finding the desired playing cards and avoiding pointless waste. However, be careful of fraudulent bills and do your studies earlier than trusting any source.
### How to Participate in Daily Combo
- Each day, the sport publicizes a fixed of 3 unique upgrades.
- To earn the reward, you need to shop for or degree-up those enhancements earlier than the day ends the usage of the coins you've earned so far in the sport.
- Quests are exchanged every day. For instance, the state-of-the-art combinations would possibly include "CEO," "ETH pairs," and "License Nigeria."
### How to Earn Daily Combo Rewards
Follow those simple steps to participate in day by day combination and earn rewards:
- Navigate to the "Mine" tab in the mini app.
- Locate the specified improvements under classes like Markets, PR & Team, Legal, and Specials.
- Purchase or upgrade these objects earlier than the everyday combination resets to receive your 5 million coins.
### Benefits of Daily Combo
The Daily Combo extensively boosts your in-recreation treasury. It complements your passive earnings, allowing you to reinvest in your alternate. Additionally, it positions you favorably for the expected token airdrop, providing you with an aspect over other players.
## What Is the Daily Cipher in Hamster Kombat?
The Daily Cipher is a brand new function in Hamster Kombat that offers an interesting manner to earn in-game coins. With Daily Cipher, you could earn 1 million cash each day by identifying a phrase with the use of Morse Code. Morse Code is a machine of dots and dashes used to symbolize letters and numbers. In the game, you guess the phrase of the day and tap the unique sequences of dots and dashes to spell it out efficaciously. You can get exact instructions for tapping the Morse Code from the game's builders. With the sport's growing reputation, many communities are actively sharing suggestions to crack the Daily Cipher code.
The maximum wide variety of attempts for [**Daily Cipher Hamster Kombat**](https://mahapolicerc.mahaitexam.in/hamster-kombat-daily-cipher-code-july-8-2024/) is five. Each participant can attempt to clear up the Morse Code as much as 5 times a day. If a player is unable to clear up the puzzle within the given wide variety of attempts, they may want to wait till tomorrow to attempt once more.
### How to Participate in Daily Ciphe
Here are the steps to manually you via the method of participating inside each day's cipher rewards:
- Start by tapping the "Earn consistent with faucet" field 3 instances on the principal display screen.
- This action changes the history of your hamster icon to purple and exhibits the "Daily Cipher" container underneath your profits meter.
### How to Earn Daily Cipher Rewards
To earn more than 1 million coins, comply with these simple steps:
1. Earn in keeping with tap: Locate the "Earn in line with faucet" button at the pinnacle of the house display.
2. Activate Morse Code: The Morse Code feature is activated when the circle around your hamster turns red.
3. Enter the Morse Code: Tap quickly on the hamster for a dot (•) and hold for a dash (–).
**EX:**
Try it now and boost your in-game foreign money with Hamster Kombat's daily cipher feature!
### Benefits of Cracking Daily Cipher Code
The Daily Cipher affords a short and simple way to earn extra cash. Each day, this increases your sources, allowing additional investments in your fictional change.
## Tip to Earn More Coins in Hamster Kombat
Combining the Daily Combo and Daily Cipher can increase your in-game income. In addition, follow these suggestions to improve your profits while playing Hamster Kombat:
- **Stay Informed**: Follow social media channels or committed Telegram corporations to get present-day updates at the Daily Combo and Cipher. This guarantees you already know exactly what to spend money on or which code to enter every day. However, with the rising enthusiasm for the sport, be vigilant about phishing scams that would cause you to borrow your private statistics or assets without your expertise.
- **Smart Investments**: Use the cash earned from the Daily Cipher to take part in the Daily Combo. This approach maximizes your everyday rewards and guarantees you're continuously growing your in-recreation wealth.
- **Consistent Participation**: Engage in each daily activity regularly. Consistency is fundamental to amassing large in-game wealth and advancing your position in the game.
- **Game Updates**: Stay up to date with any modifications in sports mechanics or reward systems by enticing with the online Hamster Kombat network on Telegram and different social mend. Adapting your techniques to these adjustments ensures you still maximize your income.
## Why Use Daily Combo and Daily Cipher?
Increasing your earnings through the Daily Combo and Daily Cipher has numerous long-term benefits.
- **Enhanced Game Progression**: More coins suggest you invest in better improvements, accelerating your startup's growth and growing your in-game reputation.
- **Airdrop Advantage**: Higher in-recreation earnings may additionally translate to more vast benefits for the duration of the token airdrop, providing you with an aggressive aspect. Like Bitcoin, if Hamster tokens are launched on cryptocurrency exchanges, you can benefit from an early bird benefit through incomes more cash that could get transformed into crypto.
- **Increased Passive Income**: Regularly investing in enhancements along with your profits enhances your passive earnings, leading to a gradual boom through the years. These passive earnings help non-stop reinvestment and similarly increase.
## Potential Concerns to Watch Out for
While maximizing your profits is beneficial, there are a few issues to keep in thoughts:
- **Monetization Risks**: Be careful about future monetization dangers. Recreation should introduce monetization techniques that would affect your ability to make actual cash. Also, shopping objects do not guarantee future returns, so make wise investments.
- **Time Commitment**: Participating in both the Daily Combo and Daily Cipher daily requires steady time and attention. Ensure that you allocate time for those activities to make sure you get all the rewards.
- **Resource Management**: Balance your spending and saving in-game cash. Ensure you have enough resources for critical enhancements or future investments.
**Conclusion**
Hamster Kombat offers the possibility to increase your in-sport income through the Daily Combo and Daily Cipher features. However, usually consider of the potential risks, consisting of monetization changes and the time commitment required. Keep a balanced technique on your gameplay to preserve taking part in and benefiting from Hamster Kombat.
Want to develop a viral crypto [**game like Hamster Kombat**](https://www.codiste.com/hamster-kombat-a-web3-tap-to-earn-game)? Partner with us to bring your unique game idea to life. Leverage our expertise in blockchain and game development to create engaging, reward-based experiences that captivate and retain players. [**Contact us**](https://www.codiste.com/book-a-call) now to start your game development journey!
**Read more:**[Hamster Kombat: listing is coming!](https://dev.to/nishantbijani/hamster-kombat-listing-is-coming-18li) | nishantbijani |
1,916,954 | From Conversations to Content: How to Turn Your Dev Community Chatter into a Content Marketing Goldmine | _Learn how to turn your developer community into a content creation machine. This guide explores... | 0 | 2024-07-09T08:08:37 | https://dev.to/swati1267/from-conversations-to-content-how-to-turn-your-dev-community-chatter-into-a-content-marketing-goldmine-3em4 | _Learn how to turn your developer community into a content creation machine. This guide explores strategies for leveraging community discussions, identifying pain points, and creating content that resonates.
Is your developer community a treasure trove of untapped content ideas? Do you find yourself wishing you could bottle up the knowledge and insights shared in your Slack channels, Discord servers, and Discourse forums?
If so, you're not alone. Many DevTool teams struggle to keep their content pipelines full, especially when juggling multiple community platforms. But what if you could transform those everyday conversations into engaging blog posts, tutorials, and FAQs that resonate with your audience?
It's not just a dream – it's a reality with Doc-E.ai.
**Why Your Community is Your Content Muse**
Your developer community is a goldmine of information, offering a direct line into the minds of your users:
- **Pain Points and Challenges**: Developers openly discuss the problems they face in their daily work, providing valuable insights for content that addresses real-world issues.
- **Feature Requests and Ideas**: Community discussions often spark innovative ideas and reveal unmet needs that can inspire new product features or content topics.
- **Technical Expertise**: The knowledge shared within your community can be repurposed into in-depth tutorials, guides, and case studies.
- **Success Stories**: When developers share their successes using your tool, it provides powerful social proof that can be used to create compelling content.
**The Challenge: Sifting Through the Noise**
While community discussions are brimming with potential, extracting valuable content ideas can be like finding a needle in a haystack. Manually sifting through countless threads and messages is time-consuming and inefficient.
Furthermore, it can be difficult to identify which topics are truly resonating with your audience and which ones are just passing fads.
Doc-E.ai -The Developer Engagement Platform
**Doc-E.ai: Your Content Creation Copilot**
Doc-E.ai is a developer engagement platform that streamlines the process of turning community conversations into content. It leverages AI to:
- **Analyze Conversations**: Automatically identify trending topics, frequently asked questions, and recurring pain points in your community discussions.
- **Surface Insights**: Provide a clear overview of what's being discussed, which questions are unanswered, and what topics are generating the most engagement.
- **Generate Content Ideas**: Suggest relevant blog post titles, tutorial topics, or FAQ questions based on your community's conversations.
- **Streamline Creation**: Help you quickly draft content by summarizing discussions, extracting key points, and generating outlines.
**Practical Tips for Leveraging Community Conversations**
Track Frequently Asked Questions: Identify recurring questions or topics that pop up in your community channels. These are prime candidates for blog posts,FAQs, or tutorials.
- **Pay Attention to Pain Points**: Look for discussions where users are expressing frustration or difficulty with specific features or workflows. These insights can inform product improvements and content that addresses these challenges.
- **Monitor Trending Topics**: Keep an eye on emerging trends or hot topics within your community. Create content that aligns with these trends to stay relevant and attract new users.
- **Engage in Conversations**: Participate in discussions, ask questions, and encourage community members to share their knowledge and experiences.
{% embed https://youtu.be/NWGLT4qgG-c?si=tE8qdj6Jk9B6x7J_ %}
**Example: Turning a Support Question into a Blog Post**
Let's say a user asks a question about integrating your DevTool with a specific third-party library. Instead of just providing a quick answer, you could:
- **Create a Tutorial**: Write a step-by-step guide on how to achieve the integration,including code snippets and screenshots.
- **Share it in the Community**: Post the tutorial in your community forum or Slack channel, inviting feedback and discussion.
- **Repurpose as a Blog Post**: Refine the tutorial into a blog post and promote it through your social channels and newsletter.
**Conclusion**
Your developer community is a valuable source of content ideas and insights. By actively listening to your users and leveraging AI-powered tools like Doc-E.ai, you can create content that truly resonates, drives engagement, and strengthens your brand.
Ready to turn your community conversations into a content marketing powerhouse? Try Doc-E.ai for free today!
| swati1267 | |
1,916,955 | Enhancing Ethereum: Vitalik Buterin’s Approach to Faster Blockchain Transactions | “One of the important properties of a good blockchain user experience is fast transaction... | 0 | 2024-07-09T08:11:22 | https://36crypto.com/enhancing-ethereum-vitalik-buterins-approach-to-faster-blockchain-transactions/ | cryptocurrency, news, blockchain | _“One of the important properties of a good blockchain user experience is fast transaction confirmation times,”_ emphasizes Ethereum co-founder Vitalik Buterin in his latest [article](https://vitalik.eth.limo/general/2024/06/30/epochslot.html). He notes that although Ethereum has improved significantly since five years ago, there is still a need to further improve the user experience. In the article, Buterin describes several methods to enhance the transaction speed of the blockchain.
**A Method to Speed Up Transactions in Ethereum**
In 2022, the Ethereum Merge took place, which was a transition from the consensus proof-of-work mechanism to proof-of-stake. According to Buterin, this reduced the confirmation of L1 transactions to 5–20 seconds. However, he notes that this is roughly on par with the speed of credit card payments and adds that there is potential for further transaction acceleration. One of the methods the expert suggested is to change the architecture of slots and epochs that reference Ethereum 2.0 and the underlying Ethereum Gasper consensus.
Slots refer to 12 seconds during which a randomly selected ETH validator, or staker, has time to propose a block. Every 32 slots constitutes one epoch, which requires 32 sets of committees – or validator groups – to complete the validation process on the Ethereum blockchain.
The Gasper consensus system aims to ensure a critical Ethereum concept known as finality. It ensures that once a transaction, slot, or era is complete, a block cannot be changed or removed from the blockchain without burning 33% of the total staked Ether.
According to Buterin, the Ethereum Foundation is becoming “increasingly uncomfortable” with the current slot voting mechanism and approach to finality. This system is prone to many errors and is extremely inconvenient. He noted that with this infrastructure, it takes too long to finalize a block, currently taking 12.8 minutes. To solve this problem, he suggested replacing the current model with SSF. However, this method has not yet been fully developed and risks running into some problems.
_“The main challenge with SSF is that naively, it seems to imply that every single Ethereum staker would need to publish two messages every 12 seconds, which would be a lot of loads for the chain to handle,”_ he said.
To overcome such problems, the Orbit SSF system is being developed, but Buterin adds that such an infrastructure still does not change the fact that users have to wait 5–20 seconds. The expert goes on to note that Ethereum is still far from having definitive answers to all questions related to potential methods of speeding up transactions on its network. According to him, projects such as Orbit SSF have only recently emerged, which indicates that their slot and epoch design space is still not sufficiently explored.
_“The more options we have, the better we can do for users both on L1 and on L2s, and the more we can simplify the job of L2 developers,”_ Buterin adds at the end.
**Ethereum Introduces EIP-7732**
On 3 July, Ethereum developers introduced a new proposal, EIP-7732, aimed at revising the block verification process and speeding up the blockchain. The decision is a response to Ethereum co-founder Vitalik Buterin’s call to reduce the time for transaction validation due to the increased demand for Ethereum blockchain performance.
EIP-7732 aims to reduce the computational burden on validators by separating the consensus and execution levels, increasing the efficiency and speed of the network. The Ethereum blockchain requires validators to perform consensus and execution functions in a short period, creating potential inefficiencies and delays in the process.
EPBS will allow validators to focus on immediate consensus verification and defer execution verification to a later time without compromising network performance and security. Additionally, Consensys, the company behind the Ethereum software and MetaMask crypto wallet, has recently [introduced](https://x.com/Consensys/status/1808521455317201034) security improvements to the wallet. Specifically, they have acquired the Wallet Guard app to enhance the security of the non-custodial wallet.
The Wallet Guard service can detect fraudulent transactions and phishing links by verifying transactions on the client side. According to Consensys, the company’s software provides “maximum protection” in the Web3 space. Moreover, the entire Wallet Guard team will join Consensys as part of the MetaMask security division.
Consensys emphasizes that security remains one of the key issues in the crypto asset industry. According to the Chainalysis report, in 2023, hackers stole $1.7 billion through various fraudulent schemes. At the same time, in 2022, this figure reached $3.7 billion.
MetaMask provides access to decentralized applications and non-fungible tokens (NFTs) on Web3 to more than 30 million active users every month. In addition, the platform is integrated with several companies, such as OKX, Bybit, WhiteBIT, etc., to provide a more secure and convenient way to authenticate.
**Summary**
A recent article by Vitalik Buterin highlights the need to improve the user experience on the Ethereum blockchain by reducing transaction confirmation times. Despite significant improvements, especially after the Ethereum Merge in 2022, there is still room for optimization. Buterin suggests several methods, including architectural changes to slots and epochs, as well as the potential introduction of SSF, although these solutions are still under development and present their challenges. | hryniv_vlad |
1,916,957 | Power Pages SPA: login redirect | Login process with Azure AD identity provider When a user navigates to any secured page,... | 27,979 | 2024-07-09T11:26:19 | https://dev.to/andrewelans/power-pages-spa-login-redirect-2g2n | powerpages, powerplatform | ## Login process with Azure AD identity provider
When a user navigates to any secured page, the Power Pages redirects the user to the sign in page:
`https://your.powerappsportal.com/SignIn`
`5a0c25a6-4739-ef11-8409-6045bd8728a9` is your Azure AD tenant.
Clicking a button <kbd>Azure AD</kbd> on this page will trigger the authentication process redirect which can also be initiated by navigating to the following URL:
`https://your.powerappsportal.com/Account/Login/ExternalLogin?provider=https://login.windows.net/5a0c25a6-4739-ef11-8409-6045bd8728a9/&ReturnUrl=%2F`
After successful authentication, the user will be taken to the page from the ReturnUrl route. In this case it's the Home page as `%2F` is the URI-encoded `/`.
## Default pages with public access
Even if you set Page Permissions of all your pages to Authenticated Users web role only, there are some inbuilt pages which will by default be available publicly. These include:
`https://your.powerappsportal.com/SignIn`
`https://your.powerappsportal.com/Account/Login`
`https://your.powerappsportal.com/Account/Login/Register`
Navigating to these pages will not trigger the authentication process.
## Navigation to a specific hash after login
Let's say that I want to go directly to the following route:
`https://your.powerappsportal.com/#suppliers?name=valves&status=active`
If my user session is active, I may just paste this link to the url bar and see the results I wanted. Since I'm already authenticated, no login redirect is required.
But if I'm not authenticated or my session is expired, the login redirect will be triggered with the following `ReturnUrl`:
`https://your.powerappsportal.com/Account/Login/ExternalLogin?provider=https://login.windows.net/5a0c25a6-4739-ef11-8409-6045bd8728a9/
&ReturnUrl=%2F#suppliers?name=valves&status=active`
And... after successful authentication I will be redirected to the Home page instead of the requested route. This happens due to the hash sign and all that comes after it is lost during redirect.
## How to fix
In the `ReturnUrl` the hash sign `#` [shall be replaced with](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent) `%23` so that this part of the redirect url:
`...ReturnUrl=%2F#suppliers?name=valves&status=active`
becomes:
`...ReturnUrl=%2F%23suppliers?name=valves&status=active`
How to automate this is in the next post... | andrewelans |
1,916,958 | Understanding List Comprehensions in Python | List comprehensions are a powerful and efficient method for creating lists in Python. They offer a... | 0 | 2024-07-09T08:14:36 | https://developer-service.blog/understanding-list-comprehensions-in-python/ | python | List comprehensions are a powerful and efficient method for creating lists in Python.
They offer a concise and readable way to generate lists based on existing iterables.
In article, I will explore the nuances of list comprehensions, their benefits over traditional loops, and various practical applications.
---
## What are List Comprehensions?
List comprehensions are a syntactically compact way to create lists by combining looping and conditional logic into a single line of code.
This results in a more readable and expressive way to generate lists, making it easier to understand the intent of the code at a glance.
---
## Structure and Examples
The basic structure of a list comprehension is as follows:
```
[expression for item in iterable if condition]
```
Let's break down the components of this structure:
- **expression**: This is the value that will be added to the new list for each iteration.
- **for item in iterable**: This is the looping construct that iterates over each item in the iterable (e.g., list, tuple, set, dictionary, or generator).
- **if condition**: This is an optional conditional statement that filters the items to be included in the new list.
### Examples:
**Basic List Comprehension:**
```
numbers = [1, 2, 3, 4, 5]
squares = [x**2 for x in numbers]
print(squares)
# Output: [1, 4, 9, 16, 25]
```
This example uses list comprehension to create a new list of squares from an existing list of numbers.
**List Comprehension with a Condition:**
```
numbers = [1, 2, 3, 4, 5]
even_squares = [x**2 for x in numbers if x % 2 == 0]
print(even_squares)
# Output: [4, 16]
```
This example filters the numbers to include only even numbers, which are then squared, demonstrating the use of an if condition in a list comprehension.
---
## Benefits of List Comprehensions Over Traditional Loops
List comprehensions offer several advantages over traditional loops:
- **Brevity**: List comprehensions are more concise and easier to read than traditional loops, making your code more maintainable and easier to understand.
- **Performance**: List comprehensions are often faster than traditional loops because they are optimized for creating lists.
- **Readability**: The intent of a list comprehension is clearer than that of a traditional loop, making it easier for others to understand your code.
---
## Practical Applications
List comprehensions can be used in various ways to manipulate and process data.
Here are some common use cases:
**Filtering Lists:**
```
words = ["apple", "banana", "cherry", "date"]
short_words = [word for word in words if len(word) <= 5]
print(short_words)
# Output: ['apple', 'date']
```
This example filters a list of words to include only those with 5 or fewer characters.
**Transforming Lists:**
```
temperatures_celsius = [0, 20, 30, 40]
temperatures_fahrenheit = [(temp * 9/5) + 32 for temp in temperatures_celsius]
print(temperatures_fahrenheit)
# Output: [32.0, 68.0, 86.0, 104.0]
```
This example converts a list of temperatures from Celsius to Fahrenheit.
**Nested List Comprehensions:**
```
matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
flattened = [num for row in matrix for num in row]
print(flattened)
# Output: [1, 2, 3, 4, 5, 6, 7, 8, 9]
```
This example flattens a 2D list (matrix) into a 1D list using nested list comprehensions.
**Creating Lists of Tuples:**
```
pairs = [(x, y) for x in range(3) for y in range(3)]
print(pairs)
# Output: [(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2), (2, 0), (2, 1), (2, 2)]
```
This example generates a list of all possible pairs (tuples) of numbers from two ranges.
**Removing Duplicates:**
```
list_with_duplicates = [1, 2, 2, 3, 4, 4, 5]
unique_list = list(set([x for x in list_with_duplicates]))
print(unique_list)
# Output: [1, 2, 3, 4, 5]
```
This example removes duplicates from a list by converting it to a set and back to a list.
---
## More Advanced Topics
Let's now explore some more advanced topics regarding list comprehension variations.
**Generator Expressions**
Generator expressions are similar to list comprehensions but generate an iterable instead of a list.
This can be more memory-efficient when working with large datasets, as items are generated on the fly rather than being stored in memory all at once.
```
numbers = [1, 2, 3, 4, 5]
squares_generator = (x**2 for x in numbers)
for square in squares_generator:
print(square)
# Output
# 1
# 4
# 9
# 16
# 25
```
**Dictionary and Set Comprehensions**
Python also supports dictionary and set comprehensions, which allow you to create dictionaries and sets in a concise manner, similar to list comprehensions.
```
# Dictionary comprehension
numbers = [1, 2, 3, 4, 5]
squares_dict = {x: x**2 for x in numbers}
print(squares_dict)
# Output: {1: 1, 2: 4, 3: 9, 4: 16, 5: 25}
# Set comprehension
list_with_duplicates = [1, 2, 2, 3, 4, 4, 5]
unique_set = {x for x in list_with_duplicates}
print(unique_set)
# Output: {1, 2, 3, 4, 5}
```
---
## Conclusion
List comprehensions are a powerful and versatile tool in Python that enables you to create lists in a concise and readable manner.
They can simplify your code, improve performance, and make it easier to manipulate and process data.
By mastering list comprehensions and their advanced features, you can write more efficient and cleaner Python code. | devasservice |
1,916,959 | The Benefits of Choosing an Indian Software Development Company | When it comes to software development, choosing the right partner is crucial for the success of your... | 0 | 2024-07-09T08:18:30 | https://dev.to/david_hasi_df9e03e516a199/the-benefits-of-choosing-an-indian-software-development-company-2b7g | software, india, softwaredevelopment, noida |
When it comes to software development, choosing the right partner is crucial for the success of your project. Microcode Software, a prominent **[software development company in India](https://microcodesoftware.com/)**, stands out as an excellent choice for businesses worldwide. This article explores the myriad benefits of opting for an Indian software development company, with a special focus on Microcode Software.
High-Quality Talent Pool
India boasts a vast pool of highly skilled software developers. The country produces a significant number of engineering graduates each year, many of whom specialize in software development. Microcode Software harnesses this talent pool to offer top-notch services. Their developers are proficient in various programming languages and frameworks, ensuring that they can handle any project with ease and expertise.
Cost-Effectiveness
One of the most compelling reasons to choose a software development company in India is the cost advantage. Indian companies offer competitive pricing without compromising on quality. Microcode Software provides cost-effective solutions, making it possible for businesses to maximize their ROI. The lower cost of living in India translates to lower operational costs, allowing Indian companies to offer competitive rates.
Time Zone Advantage
Working with a software development company in Noida like Microcode Software offers the added benefit of favorable time zones. The time difference between India and many Western countries allows for round-the-clock productivity. While your team is resting, the Indian team can continue working on the project, ensuring faster turnaround times and efficient project management.
Expertise in Cutting-Edge Technologies
Indian software development companies are at the forefront of adopting and mastering new technologies. Microcode Software is no exception, with expertise in cutting-edge technologies such as artificial intelligence, machine learning, blockchain, and more. This technological prowess ensures that your project leverages the latest advancements, giving you a competitive edge in the market.
Strong Communication Skills
Effective communication is essential for the success of any software development project. Indian developers are known for their strong English language skills, which facilitate seamless communication. Microcode Software places a high emphasis on clear and transparent communication, ensuring that clients are always in the loop and any issues are promptly addressed.
Flexibility and Scalability
Choosing a software development company in India offers unparalleled flexibility and scalability. Microcode Software can easily scale their team up or down based on the project requirements. This flexibility ensures that you have the right resources at the right time, without the hassle of hiring and training new employees.
Robust Project Management
Project management is a critical component of successful software development. Microcode Software employs robust project management practices, utilizing tools like Jira, Trello, and Asana to track progress, manage tasks, and ensure timely delivery. Their structured approach to project management minimizes risks and enhances the overall efficiency of the development process.
Focus on Quality Assurance
Quality assurance is integral to the software development process. Indian companies, including Microcode Software, prioritize rigorous testing and quality control to deliver flawless products. They employ a range of testing methodologies, from manual testing to automated testing, to ensure that the final product meets the highest quality standards.
Cultural Compatibility
India's cultural diversity and global outlook make Indian developers adaptable and culturally compatible with clients from various parts of the world. Microcode Software understands the nuances of working with international clients, fostering a collaborative and inclusive work environment that respects different cultures and work styles.
Long-Term Partnership
Choosing Microcode Software means investing in a long-term partnership. Indian companies value client relationships and strive to build lasting partnerships based on trust and mutual growth. Microcode Software goes the extra mile to understand your business goals and aligns its services to help you achieve them.
Conclusion
Selecting Microcode Software, a leading software development company in Noida, offers numerous benefits, including access to a high-quality talent pool, cost-effectiveness, expertise in cutting-edge technologies, and robust project management. Their focus on quality assurance, strong communication skills, and cultural compatibility make them an ideal partner for businesses looking to succeed in their software development projects. Embrace the advantages of working with a software development company in India and take your business to new heights with Microcode Software.
**For more info please visit:
****Contact**: 8882581143
**Email: contact@microcode.email
| david_hasi_df9e03e516a199 |
1,916,960 | Diamond Burs in Cosmetic Dentistry: Achieving Perfect Smiles | According to the new market research report "Dental Diamond Burs Market by type (Diamonds, Tungsten... | 0 | 2024-07-09T08:19:53 | https://dev.to/aryanbo91040102/diamond-burs-in-cosmetic-dentistry-achieving-perfect-smiles-4k1c | news | According to the new market research report "Dental Diamond Burs Market by type (Diamonds, Tungsten Carbide, Stainless Steel), Application (Hospitals, Clinics), Technology (Electrolytic Co-deposition, Micro brazing, CVD (Chemical Vapor desposition), Sintering), and Region - Global Forecasts to 2026", published by MarketsandMarkets™, the global Diamond Burs Market size is estimated at USD 130 million in 2021 and is projected to reach USD 191 million by 2026, at a CAGR of 8.0%.
Download PDF Brochure: [https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=86086144](https://www.marketsandmarkets.com/pdfdownloadNew.asp?id=86086144)
Browse in-depth TOC on "Dental Diamond Burs Market"
230 – Tables
60 – Figures
226 – Pages
View Detailed Table of Content Here: https://www.marketsandmarkets.com/Market-Reports/dental-diamond-burs-market-86086144.html
The dental diamond burs market is witnessing high growth owing to the rising cases of dental diseases, increasing demand for cosmetic dentistry, growing dental tourism in emerging markets, changing lifestyles, unhealthy food habits, and the increasing disposable income in developing countries.
Diamonds is the largest type segment of the dental diamond burs market
The dental diamond burs market is segmented on the basis of type into diamonds, tungsten carbide and stainless steel. The diamonds type segment accounted for a larger market share. This is attributed to its unique hardness properties. Diamond is also projected to be the fastest-growing type segment. Due to this property, it can be used to cut through zirconia or grind porcelain while veneers and crowns are being prepared and placed.
Hospitals is the largest application segment of the dental diamond burs market
The dental diamond burs market is segmented on the basis of application into hospitals, clinics and others. The hospitals segment led the market in terms of both value and volume. It is attributed to the use of dental diamond burs into small and big surgeries and other treatments.
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Electrolytic co-deposition is the largest technology segment of the dental diamond burs market
The dental diamond burs market is segmented on the basis of technology into electrolytic co-deposition, micro brazing, CVD (Chemical vapor deposition), sintering, and others. Electrolytic co-deposition technology segment accounts for the largest market share in the market. Electrolytic co-deposition of natural or synthetic diamond particles inside a nickel or duplex nickel–chromium matrix onto a stainless-steel shank is the most prevalent bonding method, currently. The diamond particles are embedded in the metal matrix like chopped almonds coated in caramel. This technology offers good adhesions to the plated metal layer to the substrate. Hence, this segment of technology ends up to be the largest segment.
North America is the largest market for dental diamond burs market
The North America region is projected to be the largest market, in terms of value. APAC is expected to grow at the highest CAGR during the forecast period. Growth in North America is backed by the increasing cases of dental diseases, growing demand for tooth repair procedures, growth in the geriatric population, increasing number of dental practitioners, and rising number of dental clinics and dental laboratories. Moreover, the growth in this market is driven by a number of factors, such as the rising geriatric population, growing dental tourism in major Asian markets, such as India, increasing focus of prominent players on emerging Asian countries, increasing healthcare expenditure (coupled with the rising disposable income), growing awareness on oral healthcare, and increasing willingness of people to spend more on dental care to maintain dental aesthetics. Other factors, such as the increasing number of dental professionals, rising cases of dental diseases, and growing number of tooth repair procedures, are expected to support the growth of this regional market during the forecast period.
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Dental Diamond Burs Market Key Players
The key players in the Dental Diamond Burs Market are Dentsply Sirona Inc. (US), Henry Schein, Inc. (US), SHOFU Inc. (Japan), MANI, INC. (Germany), Bresseler USA (US), and others. The dental diamond burs market report analyzes the key growth strategies adopted by the leading market players, between 2016 and 2021, which include expansions, mergers & acquisition, new product developments/launch, and collaborations.
TABLE OF CONTENTS
1 INTRODUCTION (Page No. - 22)
1.1 OBJECTIVES OF THE STUDY
1.2 MARKET DEFINITION
1.2.1 INCLUSIONS AND EXCLUSIONS
1.3 MARKET SCOPE
FIGURE 1 MARKET SEGMENTATION
1.3.1 REGIONS COVERED
FIGURE 2 YEARS CONSIDERED FOR THE STUDY
1.4 CURRENCY
1.5 UNIT CONSIDERED
1.6 LIMITATIONS
1.7 STAKEHOLDERS
2 RESEARCH METHODOLOGY (Page No. - 26)
2.1 RESEARCH DATA
FIGURE 3 DENTAL DIAMOND BURS MARKET: RESEARCH DESIGN
2.2 KEY INDUSTRY INSIGHTS
FIGURE 4 DATA VALIDATION FROM PRIMARY EXPERTS
TABLE 1 LIST OF STAKEHOLDERS INVOLVED
FIGURE 5 BREAKDOWN OF PRIMARY INTERVIEWS
2.3 BASE NUMBER CALCULATION
2.3.1 SUPPLY-SIDE APPROACH – 1
FIGURE 6 DENTAL DIAMOND BURS MARKET: SUPPLY-SIDE APPROACH – 1
2.3.2 SUPPLY-SIDE APPROACH – 2
FIGURE 7 DENTAL DIAMOND BURS MARKET: SUPPLY-SIDE APPROACH - 2
2.3.3 SUPPLY-SIDE APPROACH – 3
FIGURE 8 DENTAL DIAMOND BURS MARKET: SUPPLY-SIDE APPROACH – 3
2.3.4 DEMAND-SIDE APPROACH – 1
FIGURE 9 DENTAL DIAMOND BURS MARKET: DEMAND-SIDE APPROACH – 1
2.4 MARKET SIZE ESTIMATION
2.4.1 MARKET SIZE ESTIMATION METHODOLOGY: BOTTOM-UP APPROACH
2.4.2 MARKET SIZE ESTIMATION METHODOLOGY: TOP-DOWN APPROACH
2.5 TRIANGULATION
2.5.1 SECONDARY DATA
2.5.2 PRIMARY DATA
FIGURE 10 DATA TRIANGULATION
2.6 RESEARCH ASSUMPTIONS & LIMITATIONS
2.6.1 ASSUMPTIONS
2.6.2 RISK ASSESSMENT
TABLE 2 LIMITATIONS & ASSOCIATED RISKS
2.7 GROWTH RATE ASSUMPTIONS/GROWTH FORECAST
FIGURE 11 MARKET GROWTH PROJECTIONS FROM GROWTH DRIVERS AND OPP0RTUNITIES
2.8 FACTOR ANALYSIS
2.8.1 INTRODUCTION
2.8.2 DEMAND-SIDE ANALYSIS
2.8.3 SUPPLY-SIDE ANALYSIS
FIGURE 12 FACTOR ANALYSIS
3 EXECUTIVE SUMMARY (Page No. - 37)
FIGURE 13 DIAMOND BURS TO LEAD THE MARKET DURING THE FORECAST PERIOD
FIGURE 14 ELECTROLYTIC CO-DEPOSITION TECHNOLOGY SEGMENT TO LEAD THE MARKET
FIGURE 15 HOSPITALS APPLICATION TO LEAD THE DENTAL DIAMOND BURS MARKET
FIGURE 16 DENTAL DIAMOND BURS MARKET IN APAC TO REGISTER THE FASTEST GROWTH
FIGURE 17 NORTH AMERICA LED THE DENTAL DIAMOND BURS MARKET
4 PREMIUM INSIGHTS (Page No. - 41)
4.1 ATTRACTIVE MARKET OPPORTUNITIES IN THE DENTAL DIAMOND BURS MARKET
FIGURE 18 THE INCREASING PREVALENCE OF DENTAL DISEASES IS A MAJOR FACTOR DRIVING THE MARKET GROWTH
4.2 DENTAL DIAMOND BURS MARKET, BY REGION
FIGURE 19 APAC TO BE THE FASTEST-GROWING REGION DURING THE FORECAST PERIOD
4.3 DENTAL DIAMOND BURS MARKET, BY TYPE
FIGURE 20 DIAMOND BURS TO BE THE LARGEST SEGMENT
4.4 DENTAL DIAMOND BURS MARKET, BY TECHNOLOGY
FIGURE 21 ELECTROLYTIC CO-DEPOSITION TO ACCOUNT FOR LARGEST MARKET SHARE
4.5 DENTAL DIAMOND BURS MARKET, BY APPLICATION
FIGURE 22 CLINICS TO BE THE FASTEST-GROWING APPLICATION SEGMENT
4.6 DENTAL DIAMOND BURS MARKET: EMERGING VS. MATURE MARKETS
FIGURE 23 INDIA TO EMERGE AS THE MOST LUCRATIVE MARKET BETWEEN 2021 AND 2026
4.7 DENTAL DIAMOND BURS MARKET IN NORTH AMERICA, 2020
FIGURE 24 US ACCOUNTED FOR THE LARGEST SHARE OF THE NORTH AMERICAN DENTAL DIAMOND BURS MARKET
4.8 DENTAL DIAMOND BURS MARKET: MAJOR COUNTRIES SNAPSHOT
FIGURE 25 THE MARKET IN INDIA IS PROJECTED TO GROW AT THE HIGHEST RATE
5 MARKET OVERVIEW (Page No. - 46)
5.1 INTRODUCTION
5.2 MARKET DYNAMICS
FIGURE 26 DRIVERS, RESTRAINTS, OPPORTUNITIES, AND CHALLENGES IN DENTAL DIAMOND BURS MARKET
5.2.1 DRIVERS
5.2.1.1 Changing lifestyles and unhealthy food habits
5.2.1.2 Rising dental tourism in emerging markets
TABLE 3 COST SAVINGS: TOP DESTINATIONS FOR DENTAL RESTORATION TREATMENTS
5.2.1.3 Growing consumer awareness and rising focus on cosmetic dental aesthetics
5.2.1.4 Increasing prevalence of oral health disorders
5.2.1.4.1 Dental caries and other periodontal disorders
5.2.1.4.2 Edentulism
FIGURE 27 US: NUMBER OF PEOPLE SUFFERING FROM ABSENCE OF ALL-NATURAL TEETH (2018)
TABLE 4 INCREASE IN GERIATRIC POPULATION, 2019 VS 2050
5.2.2 RESTRAINTS
5.2.2.1 Changing frequency of dental diamond burs
5.2.2.2 Limited reimbursement
TABLE 5 COST OF DENTAL CROWNS, BY MATERIAL
5.2.3 OPPORTUNITIES
Continued... | aryanbo91040102 |
1,916,963 | MVVM in React: A beginner's guide | Introduction It is essential for all developers to give attention to code organization... | 0 | 2024-07-09T08:28:41 | https://dev.to/miracool/mvvm-in-react-a-beginners-guide-3cfi | webdev, javascript, react, frontend | ## Introduction
It is essential for all developers to give attention to code organization while creating modern software, since it may significantly improve developer experience, collaboration, code maintainability, and reuseability. There are different architecture that can be used to archive this. however, this article describe how to apply the Model-View-ViewModel (MVVM) architecture to improve the organization of your code.
The Model-View-ViewModel (MVVM) software architecture model is widely used in the development of [user interfaces](https://www.techtarget.com/searchapparchitecture/definition/user-interface-UI). The user interface is divided into three components that are linked together: model, view, and view-model. This architecture promotes [separation of concern](https://www.geeksforgeeks.org/separation-of-co). Without closely tying the user interface to the underlying business logic, it allows developers to work on multiple portions of the application at the same time.
## Understanding MVVM
MVVM is a design pattern that promotes separation of concern in frontend development by separating the UI, application data, and business logic. This method makes sure that the presentation logic and application data can be managed independently, making the codebase more modular and maintainable.
### Components of MVVM
**Model**
The model represents the application's data and business logic. It's made of the data structures and logics that contain how the application behaves. What I'm saying is that the model serves as the foundation upon which the entire application is built. It is also responsible for retrieving and manipulating data, as well as enforcing business logic.
**View**
The view is responsible for presenting the user interface to the end-user. The visual elements, such as buttons, text fields, and layouts, are kept in this part of the application; they are what users interact with. Unlike traditional architectures where the view is tightly coupled with the underlying logic, MVVM advocates for a more decoupled approach. The view should be passive and only concerned with rendering the view model's state.
**ViewModel**
The ViewModel acts as an intermediary between the view and the model. It serves as a bridge that translates the data and actions of the model into a format that the view component can understand. The View may stay portable and concentrate only on display issues because the ViewModel handles state management and presentation logic. They are connected by a channel, allowing them to exchange messages when necessary. This strategy promotes improved concern separation.
## Implementing MVVM in React
In this example, we will create a walk-through guide on how to implement a simple feature where users can add and list tasks.
To get started, you should have a fresh installation of [react](https://react.dev/) ready. or better still copy and paste this code on your terminal to create a project.
```bash
npx create-react-app mvvm-app
cd mvvm-app
```
After setting up, the first thing to do is create a model for managing data and business logic.
Create a file called `TaskModel.js`, copy and paste this code into it.
`TaskModel.js`
```javascript
class TaskModel {
constructor() {
this.tasks = [];
}
addTask(task) {
this.tasks.push(task);
}
getAllTasks() {
return this.tasks;
}
}
export default TaskModel;
```
This code has a `TaskModal` class, which consist of a constructor that is used for saving all the task in an array. It also consist of two methods, `addTask` and `getAllTasks` both of which are for adding and getting tasks.
Next, you will create the render view using `App.js` and show
`App.js`
```javascript
import React, { useState } from "react";
import useTaskViewModel from "./view-model/TaskViewModel";
import "./App.css";
function App() {
const [taskInput, setTaskInput] = useState("");
const [tasks, setTasks] = useState([]);
const { addTask, getAllTasks } = useTaskViewModel();
const handleAddTask = () => {
addTask(taskInput);
setTaskInput("");
setTasks(getAllTasks());
};
return (
<div className="main-container">
<h1>Task Manager</h1>
<div className="main text-input">
<input
type="text"
placeholder="Add a task"
value={taskInput}
onChange={(e) => setTaskInput(e.target.value)}
/>
<button onClick={handleAddTask}>Add Task</button>
</div>
<div className="main task-wrapper">
<h2>Tasks</h2>
<hr />
{tasks.length !== 0 && (
<ul className="task-item">
{tasks.map((task, index) => (
<li className="text" key={index}>
{task}
</li>
))}
</ul>
)}
<div className="list-not-found">
{tasks.length === 0 && <p className="text">There is no task item</p>}
</div>
</div>
</div>
);
}
export default App;
```
This component serves as the main interface for the tasks. It utilizes local state to manage the input for adding tasks `taskInput` and the list of tasks `tasks`. The `useTaskViewModel` hook is used to interact with the `ViewModel`, enabling functionality for adding tasks `addTask` and retrieving all tasks `getAllTasks`.
The `handleAddTask` function add task to the list, triggering the `addTask` method with the current input value, resetting the input field, and updating the task list with the newly added task. The JSX markup structures the UI with input and button elements for adding tasks and a list to display existing tasks. Conditional rendering ensures that a message is displayed when there are no tasks present.
`App.css`
```css
body {
width: 100%;
display: flex;
justify-content: center;
align-items: center;
}
.main-container {
background: #20205d;
padding: 10px 20px;
border-radius: 5px;
}
.main-container h1 {
font-size: 16px;
color: #eee;
}
.main-container button {
border: 1px solid white;
padding: 7px;
border-radius: 5px;
}
.text-input {
display: flex;
flex-direction: row;
gap: 2px;
}
.text-input input {
border: 0.78px solid #eee;
display: flex;
padding: 7px;
border-radius: 7px;
gap: 2px;
}
.text-input button {
width: 100px;
}
.task-wrapper h2 {
font-size: 16px;
color: #eee;
}
.text {
color: #eee;
font-size: 14px;
}
```
In this CSS code example, we style the task management application's user interface. We center the content, define the main container's appearance, and set styles for text, input fields, buttons, and task items.
<br/>
<br/>
This image shows the output of the image. task has not been added in this image but the [HTML(HyperText Markup Language)](https://www.investopedia.com/terms/h/html.asp) and [CSS(Cascading Style Sheets)](https://developer.mozilla.org/en-US/docs/Web/CSS) has been implemented.
`TaskViewModel.js`
```javascript
import { useState } from "react";
import TaskModel from "../model/TaskModel";
const useTaskViewModel = () => {
const [taskModel] = useState(() => new TaskModel());
const addTask = (task) => {
taskModel.addTask(task);
};
const getAllTasks = () => {
return taskModel.getAllTasks();
};
return { addTask, getAllTasks };
};
export default useTaskViewModel;
```
This `useTaskViewModel` hook contains all the logic, data, and functionality related to tasks. It uses the `useState` hook to initialize a TaskModel instance, which handles task-related operations. `addTask` Accepts a task as input and delegates the task addition functionality to the TaskModel instance, which adds the task to the internal data structure.
`getAllTasks` Retrieves all tasks stored in the `TaskModel` instance and returns them as an array. Components can easily interact with tasks using these methods without directly accessing the underlying data or business logic of the task model.
<br/>
<br/>
This image shows the output of the task user interface, when a user add task to it.
## Benefits of Using MVVM in React
React applications can achieve even greater levels of modularity, maintainability, and testability. In this section, we'll explore how MVVM enhances the developer experience by focusing on three key benefits: separation of concerns, reusability and maintainability, and enhanced testability.
### Separation of concerns
MVVM promotes separation of concern by giving each of its components distinct roles. The model represents the data, business logic of the application, and state management. The visual elements that are visible to users are represented by the view, which is composed of JSX components that make up the user interface. Presentation logic is incorporated into the view model. It manages data transformation, ensuring that the data in the model and the view's display communicate with one another without interruption.
### Reusability and maintainability
By isolating presentation logic in the ViewModel, developers can reuse this logic across multiple components without duplicating code. This promotes code reuse and simplifies maintenance efforts. Also, with clear separation between Model, View, and ViewModel, React applications built using MVVM are inherently more modular. It is easier to understand, change, and expand the functionality of the application when each component is able to concentrate on its own functions.
### Enhanced testability
Developers can write unit tests for the ViewModel, which contains the application's business logic. These tests verify that the ViewModel behaves correctly under various conditions without needing to render the UI components. They can also write integration tests to ensure that the model, view, and view work together as expected. These tests validate the end-to-end functionality of the application, covering interactions between different layers. In essence, MVVM makes it easier to write good tests for React components. This results in software that is more stable, dependable, and bug-free.
## Conclusion
Dependable systems that enhance testability, ensure code separation, and eliminate all code duplication are necessary while developing scalable applications. All these are what MVVM stands for. Look it over now, implement it in your project, and improve as a developer. Happy coding! | miracool |
1,916,964 | Connecting to GBase 8s Database Using Python via ODBC | This article describes how to connect to a GBase 8s database using Python via ODBC. By combining the... | 0 | 2024-07-09T08:29:17 | https://dev.to/congcong/connecting-to-gbase-8s-database-using-python-via-odbc-1ck7 | database | This article describes how to connect to a GBase 8s database using Python via ODBC. By combining the flexibility of Python with the universality of ODBC, we can create powerful and efficient database applications. ODBC allows Python to connect to various databases, including GBase 8s, execute queries, and perform complex data operations.
## Configuring GBase 8s Database ODBC Data Source
To connect to a GBase 8s database via ODBC in Python, we first need to configure the ODBC data source. This section explains how to configure the GBase 8s database ODBC data source on a Linux environment.
### 1. Check if unixODBC is installed
```sh
[root@a]# odbcinst -j
unixODBC 2.3.1
DRIVERS............: /etc/odbcinst.ini
SYSTEM DATA SOURCES: /etc/odbc.ini
FILE DATA SOURCES..: /etc/ODBCDataSources
USER DATA SOURCES..: /etc/odbc.ini
SQLULEN Size.......: 8
SQLLEN Size........: 8
SQLSETPOSIROW Size.: 8
```
### 2. Install unixODBC if not already installed
```sh
yum install unixODBC unixODBC-devel
```
### 3. Install CSDK
```sh
tar -xf clientsdt_x.x.x_x86_64.tar -C csdk
cd csdk
./installclientsdk -i silent -DLICENSE_ACCEPTED=TRUE -DUSER_INSTALL=/opt/gbasecsdk
```
### 4. Write the sqlhosts file for the instance (filename: sqlhosts.odbc)
```sh
gbase01 onsoctcp 192.168.1.10 9088
```
### 5. Set environment variables
```sh
export GBASEDBTDIR=/opt/gbasecsdk
export LD_LIBRARY_PATH=$GBASEDBTDIR/lib:$GBASEDBTDIR/lib/cli:$GBASEDBTDIR/lib/esql
export GBASEDBTSQLHOSTS=$GBASEDBTDIR/etc/sqlhosts.odbc
export ODBCINI=/etc/odbc.ini
```
### 6. Edit the /etc/odbcinst.ini file
```ini
# Example driver definitions
[ODBC Drivers]
GBase ODBC DRIVER=Installed
[GBase ODBC Driver]
Driver=/opt/gbasecsdk/lib/cli/iclit09b.so
Setup=/opt/gbasecsdk/lib/cli/iclit09b.so
APILevel=1
ConnectFunctions=YYY
DriverODBCVer=03.51
FileUsage=0
SQLLevel=1
smProcessPerConnect=Y
```
### 7. Edit the /etc/odbc.ini file
```ini
[ODBC Data Sources]
gbase72=GBase ODBC DRIVER
[gbaseserver1]
Driver=/opt/gbasecsdk/lib/cli/iclit09b.so
Description=GBase ODBC DRIVER
Database=wwdb
LogonID=gbasedbt
pwd=111111
Servername=gbase01
CLIENT_LOCALE=en_US.819
DB_LOCALE=en_US.819
[ODBC]
UNICODE=UCS-2
Trace=0
TraceFile=/tmp/odbctrace.out
InstallDir=/extra/informix
TRACEDLL=idmrs09a.so
```
### 8. Use isql to verify the database connection (gbaseserver1 is the DSN)
```sh
[root@localhost FTS_V1.0]# isql gbaseserver1 -v
+---------------------------------------+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+---------------------------------------+
SQL>
```
## Install Python Dependencies
```sh
pip install pyodbc
```
## Python Code Example
```python
import pyodbc
dsn = "DSN=gbaseserver1"
conn = pyodbc.connect(dsn)
conn.setencoding(encoding='UTF-8')
cursor = conn.cursor()
# Execute a query
cursor.execute("SELECT * FROM emp")
# Fetch and print the results
rows = cursor.fetchall()
for row in rows:
print(row)
```
Through this exploration, we've learned that using Python with ODBC drivers to connect and operate on GBase databases is not only feasible but also offers significant convenience and flexibility. This combination showcases Python's powerful capabilities in database management, enabling efficient completion of tasks such as data querying, updating, deletion, and complex data processing with simple code. | congcong |
1,916,965 | QTCPcoin's Strategic Partnerships with Top Security Institutions | QTCPcoin's Strategic Partnerships with Top Security Institutions QTCPcoin (QUANTUM CAPITAL PARTNERS... | 0 | 2024-07-09T08:29:21 | https://dev.to/manchestermirror/qtcpcoins-strategic-partnerships-with-top-security-institutions-41in | qtcpcoin | **QTCPcoin's Strategic Partnerships with Top Security Institutions**
QTCPcoin (QUANTUM CAPITAL PARTNERS LTD) is one of the world's renowned digital asset trading platforms, primarily providing global users with cryptocurrency and derivatives trading services for Bitcoin, Litecoin, Ethereum, and other digital assets. Established in Singapore in 2018, it has officially obtained dual MSB licenses issued by the United States and Canada, as well as regulatory licenses from the US SEC and NFA (compliance operating permits). Embracing regulation and compliant operation, QTCPcoin continues to promote the development of the crypto industry. The core team of QTCPcoin comprises members from multiple countries, including Singapore, United States, United Kingdom, China, South Korea, and Japan, all of whom have several years of technical experience in the blockchain industry.
The QTCPcoin team boasts extensive experience in the blockchain ecosystem and cryptocurrency trading systems, having built a world-class decentralised security system and asset firewall protection system to effectively prevent DDoS attacks.
In addition, they collaborate deeply with several top global security institutions to provide first-class asset security assurance to users worldwide. Under the leadership of elite professionals from cutting-edge financial enterprises, QTCPcoin has rapidly expanded its business to Hong Kong, Singapore, United States, and Japan, with future plans to accelerate its global development strategy.
QTCPcoin always prioritises the protection of user assets and the maintenance of user interests, striving to provide a secure, fair, open, and efficient blockchain digital asset trading environment. With blockchain as its core, the platform aims to establish a comprehensive blockchain ecosystem and has set up operational centres and diverse service communities in multiple countries. The platform offers multilingual, 24/7 customer support and provides users worldwide with simple and smooth app operation tutorials.
QTCPcoin is committed to providing a safe, efficient, fair, and transparent trading environment for global users. It has appointed third-party audit firms to conduct regular audits to ensure user assets operate transparently in a regulated environment. The exchange also periodically publishes reserve audit results and reports to relevant regulatory authorities.
QTCPcoin offers professional custodial services, providing users with risk-free, high-yield financial fixed deposit services. By pooling funds from numerous users and entrusting them to a professional team, the platform utilises quantitative trading and scientific decision-making to create greater value for users from their perspective.
As the future development trend of the internet, blockchain must inevitably go through the capital-driven stage, and the significant profit cake of the primary market for new coin issuance has always been occupied by institutions. QTCPcoin adheres to the principle of fairness, breaking industry rules to provide users with the opportunity to participate in the primary market for new coin issuance. Everyone can participate, truly achieving everything for the user and everything to reward the user.
QTCPcoin (QUANTUM CAPITAL PARTNERS LTD) is a leading global digital asset trading company, established in Singapore in 2018. It has officially obtained dual MSB licenses issued by the United States and Canada, as well as regulatory licenses from the US SEC and NFA (compliance operating permits). Embracing regulation and compliant operation, QTCPcoin continues to promote the development of the crypto industry.
The core team of QTCPcoin comprises members from multiple countries, including Singapore, United States, United Kingdom, China, South Korea, and Japan, all of whom have several years of technical experience in the blockchain industry. The team boasts extensive experience in the blockchain ecosystem and cryptocurrency trading systems, having built a world-class decentralised security system and asset firewall protection system to effectively prevent DDoS attacks.
Additionally, they collaborate deeply with several top global security institutions to provide first-class asset security assurance. The platform offers multilingual, 24/7 customer support and provides users worldwide with simple and smooth app operation tutorials. QTCPcoin is committed to providing a safe, efficient, fair, and transparent trading environment for global users. | manchestermirror |
1,916,966 | SQL Operators Made Easy for Beginners | SQL Operators Made Easy for Beginners SQL (Structured Query Language) uses operators to perform... | 0 | 2024-07-09T08:30:33 | https://dev.to/shikha_gupta_080e904b317e/sql-operators-made-easy-for-beginners-ag8 | operators, beginners, server | SQL Operators Made Easy for Beginners
SQL (Structured Query Language) uses operators to perform operations on data. Here’s a simple guide to understand the basics:
1. Arithmetic Operators
These are used for mathematical operations.
- `+` (Addition): Adds two numbers.
```sql
SELECT 3 + 2; -- Result is 5
```
- `-` (Subtraction): Subtracts one number from another.
```sql
SELECT 5 - 3; -- Result is 2
```
- `` (Multiplication): Multiplies two numbers.
```sql
SELECT 4 2; -- Result is 8
```
- `/` (Division): Divides one number by another.
```sql
SELECT 10 / 2; -- Result is 5
```
- `%` (Modulus): Returns the remainder of a division.
```sql
SELECT 10 % 3; -- Result is 1
```
2. Comparison Operators
These are used to compare two values.
- `=` (Equal): Checks if two values are equal.
```sql
SELECT FROM employees WHERE salary = 50000;
```
- `!=` or `<>` (Not Equal): Checks if two values are not equal.
```sql
SELECT FROM employees WHERE department != 'HR';
```
- `>` (Greater Than): Checks if the left value is greater than the right value.
```sql
SELECT FROM employees WHERE age > 30;
```
- `<` (Less Than): Checks if the left value is less than the right value.
```sql
SELECT FROM employees WHERE age < 25;
```
- `>=` (Greater Than or Equal To): Checks if the left value is greater than or equal to the right value.
```sql
SELECT FROM employees WHERE experience >= 5;
```
- `<=` (Less Than or Equal To): Checks if the left value is less than or equal to the right value.
```sql
SELECT FROM employees WHERE experience <= 2;
```
3. Logical Operators
These are used to combine multiple conditions.
- `AND`: Combines two or more conditions. All conditions must be true.
```sql
SELECT FROM employees WHERE age > 25 AND department = 'Finance';
```
- `OR`: Combines two or more conditions. At least one condition must be true.
```sql
SELECT FROM employees WHERE age < 30 OR department = 'HR';
```
- `NOT`: Reverses the result of a condition.
```sql
SELECT FROM employees WHERE NOT (age < 30);
```
4. Between and In Operators
- `BETWEEN`: Selects values within a given range (inclusive).
```sql
SELECT FROM employees WHERE salary BETWEEN 30000 AND 50000;
```
- `IN`: Checks if a value is within a set of values.
```sql
SELECT FROM employees WHERE department IN ('HR', 'Finance', 'IT');
```
5. LIKE and IS NULL Operators
- `LIKE`: Used for pattern matching. `%` represents zero or more characters, `_` represents a single character.
```sql
SELECT FROM employees WHERE name LIKE 'J%'; -- Names starting with 'J'
SELECT FROM employees WHERE name LIKE '_
https://www.youtube.com/watch?v=3tCym9ZkEdk&t=3s | shikha_gupta_080e904b317e |
1,916,967 | Beyond the Dogma: An unpopular opinion on Clean Code | Part of being a good developer is reading books and pursuing lifelong learning. One of the books that... | 0 | 2024-07-09T08:32:23 | https://dev.to/selmaohneh/beyond-the-dogma-an-unpopular-opinion-on-clean-code-14l4 | programming, learning, clean, cleancode | Part of being a good developer is reading books and pursuing lifelong learning. One of the books that greatly influenced me as a young professional was [“Clean Code” by Robert C. Martin](https://amzn.to/3XZ8j3J). The best part? It’s an uplifting read. Even with limited software knowledge, you can easily grasp Martin’s concepts. I remember sitting on the train, reading with a smile on my face, and nodding in agreement throughout.
> Martin is spot on! “Clean Code” is the real deal!
That’s when my “Clean Code” phase began. I treated all of Martin’s principles as established facts; a guidebook that all good developers must adhere to. I became rather dogmatic, sometimes blindly applying Martin’s suggestions.
**“DRY” (Don’t Repeat Yourself)** — one of the key tenets of Clean Code. I internalized Martin’s ideas and shared them with my colleagues like a prophet. If I noticed something duplicated three times, I’d get nervous and immediately address it through extraction.
> “Extract ’til you drop!” — Martin’s mantra.
Becoming a Senior Developer required me to question Martin’s principles. Don’t get me wrong, Martin is still correct and “Clean Code” remains essential. However, blindly adopting all his rules is a mistake. Ponder them; some rules even contradict each other. “DRY” can lead to complex architectures that breach the **“KISS” (Keep It Simple, Stupid!)** principle. It can also lead to disregarding **“YAGNI” (You Ain’t Gonna Need It)**.
I’ve come to realize that 6 lines of duplicated code are often cleaner than, for instance, implementing an observer pattern. With those 6 lines, I can instantly understand the code, without having to navigate through multiple classes and interfaces. If those 6 lines turn into 7 lines in 5 years, so be it. It’s an acceptable growth.
If you find yourself with 12 lines of duplicated code growing every month, it’s a sign that refactoring should be scheduled.
I believe every dedicated developer experiences a dogmatic Clean Code phase, so I won’t advise you to skip it. But keep it brief by critically evaluating Martin’s rules and adopting them only when they truly fit!
Another rule I always remember: **“The developer who has to debug your code is a serial killer who knows where you live!”** Will you offer them 6 lines of code adding items to a list, or will you guide him through the Visitor Pattern to gather those 6 items?
| selmaohneh |
1,916,968 | Understanding Branch Coverage: A Comprehensive Guide | Branch coverage, also known as decision coverage, is a critical metric in software testing and... | 0 | 2024-07-09T08:32:46 | https://dev.to/keploy/understanding-branch-coverage-a-comprehensive-guide-1k32 | webdev, javascript, beginners, programming | Branch coverage, also known as decision coverage, is a critical metric in software testing and quality assurance. It measures the effectiveness of test cases in covering the possible paths through a program's control flow. By ensuring that every possible branch (or decision point) is tested, developers can identify and mitigate potential bugs and vulnerabilities in their code. This article delves into the concept of branch coverage, its importance, how it works, and best practices for achieving high [branch coverage](https://keploy.io/blog/community/understanding-branch-coverage-in-software-testing).
What is Branch Coverage?
Branch coverage is a type of code coverage metric that evaluates whether each possible branch in the control flow of a program is executed. In simple terms, it checks if both the true and false conditions of every decision point, such as if statements, switch cases, and loops, have been tested.
For example, consider the following code snippet:
python
Copy code
def check_even_odd(number):
if number % 2 == 0:
print("Even")
else:
print("Odd")
In this code, there is one decision point: the if statement. Branch coverage would require test cases that make the if condition both true and false, ensuring that both the "Even" and "Odd" branches are executed.
Why is Branch Coverage Important?
Branch coverage is crucial for several reasons:
1. Comprehensive Testing: It ensures that all logical paths in the code are tested, which helps in identifying edge cases and potential errors that might be missed with less thorough testing methods.
2. Improved Code Quality: By covering all branches, developers can identify and fix bugs early in the development process, leading to higher quality and more reliable software.
3. Risk Mitigation: Thorough testing reduces the risk of unexpected behavior in production, enhancing the overall stability and performance of the application.
4. Compliance and Standards: In certain industries, such as aviation, medical, and automotive, high branch coverage is often a regulatory requirement to ensure safety and reliability.
How Branch Coverage Works
Branch coverage involves the following steps:
1. Identifying Decision Points: The first step is to identify all the decision points in the code, such as if-else statements, switch cases, and loops.
2. Creating Test Cases: For each decision point, create test cases that cover both true and false outcomes. This ensures that all possible paths are executed at least once.
3. Executing Tests: Run the test cases and record which branches are executed. This can be done using code coverage tools that instrument the code and track the execution paths.
4. Analyzing Results: Analyze the coverage reports to identify any branches that were not executed. These uncovered branches indicate areas of the code that need additional testing.
5. Improving Coverage: Create additional test cases to cover the uncovered branches and repeat the testing process until the desired level of branch coverage is achieved.
Tools for Measuring Branch Coverage
Several tools can help measure branch coverage, including:
1. JaCoCo: A popular Java code coverage library that provides detailed branch coverage reports.
2. Coverage.py: A tool for measuring code coverage in Python, including branch coverage.
3. Clover: A commercial tool that supports branch coverage for Java and Groovy.
4. BullseyeCoverage: A coverage analysis tool for C and C++ that includes branch coverage metrics.
Challenges and Limitations
While branch coverage is a powerful metric, it comes with its own set of challenges and limitations:
1. Complexity: Achieving 100% branch coverage can be challenging, especially in complex applications with numerous decision points and nested conditions.
2. False Sense of Security: High branch coverage does not guarantee that the software is free of bugs. It only indicates that all branches have been executed, but it does not account for the quality or effectiveness of the tests.
3. Time-Consuming: Creating comprehensive test cases to cover all branches can be time-consuming and resource-intensive.
4. Maintenance: As the codebase evolves, maintaining high branch coverage requires continuous effort and updating of test cases.
Best Practices for Achieving High Branch Coverage
To achieve and maintain high branch coverage, consider the following best practices:
1. Automate Testing: Use automated testing frameworks and continuous integration tools to run tests regularly and track branch coverage over time.
2. Code Reviews: Conduct regular code reviews to identify areas that lack test coverage and ensure that new code includes comprehensive tests.
3. Test-Driven Development (TDD): Adopt TDD practices, where tests are written before the code, to ensure that all branches are considered from the outset.
4. Mocking and Stubbing: Use mocking and stubbing to isolate and test individual branches in complex codebases.
5. Refactor Code: Simplify complex decision points by refactoring code to make it more testable and easier to achieve high branch coverage.
6. Prioritize Critical Paths: Focus on achieving high coverage for critical and high-risk areas of the code first, then expand coverage to less critical sections.
Conclusion
Branch coverage is an essential metric in software testing that helps ensure all possible paths in a program's control flow are tested. By identifying and testing each decision point, developers can uncover hidden bugs, improve code quality, and reduce the risk of unexpected behavior in production. While achieving high branch coverage can be challenging, adopting best practices such as automated testing, code reviews, and test-driven development can help teams achieve their coverage goals and deliver reliable, high-quality software.
| keploy |
1,916,970 | Strategies to Maximize Profits with Flash Loan Arbitrage Bots | Introduction Flash loan arbitrage has emerged as a compelling strategy within the decentralized... | 0 | 2024-07-09T08:35:21 | https://dev.to/capsey/strategies-to-maximize-profits-with-flash-loan-arbitrage-bots-3p94 | **Introduction**
Flash loan arbitrage has emerged as a compelling strategy within the decentralized finance (DeFi) space. This innovative technique leverages flash loans to exploit price differences across various platforms, offering a quick and efficient way to maximize profits. In the highly volatile DeFi market, where rapid price fluctuations are common, maximizing profits through arbitrage can be a game-changer. This blog explores effective strategies for maximizing profits using flash loan arbitrage bots in decentralized finance (DeFi) markets.
**What are flash loan arbitrage bots?**
Flash loan arbitrage bots are automated programs designed to execute trades by leveraging flash loans. They exploit price discrepancies across different platforms, buying low and selling high within a single transaction to maximize profits quickly and efficiently.
**Importance of Flash Loan Arbitrage:**
Flash loan arbitrage has become a significant strategy in the decentralized finance (DeFi) market due to its potential for high profits through price discrepancies across various platforms. Flash loans are unique financial instruments that allow users to borrow large amounts of funds without collateral, provided the loan is repaid within a single transaction block. This concept was popularized by platforms like Aave. The primary advantage of flash loans is their ability to facilitate instant, high-volume trades, making them ideal for arbitrage opportunities. By leveraging these loans, traders can exploit short-term price differences between decentralized exchanges, securing substantial returns within a very short time frame, all while maintaining minimal risk. Our [flash-loan-arbitrage-bot ](https://bidbits.org/blog/flash-loan-arbitrage-bot)development company aims to optimize these strategies for maximum profitability in DeFi markets.
**Arbitrage in DeFi:** Arbitrage involves buying and selling an asset simultaneously across different markets to profit from price discrepancies. In the DeFi context, flash loan arbitrage uses borrowed funds to exploit these price differences, with the loan repaid instantly.
**How Flash Loan Arbitrage Works:** The process begins with identifying price discrepancies across platforms. A flash loan is then taken out, assets are bought at a lower price on one platform and sold at a higher price on another. The loan is repaid within the same transaction, and the remaining profit is pocketed. The effective Flash Loan Arbitrage Strategies are shown in below:
**Essential Tools and Platforms Recommended Platforms:** Aave and dYdX are leading platforms for executing flash loans due to their robust infrastructure and user-friendly interfaces.
Essential Tools and Resources: Arbitrage calculators, bots, and monitoring tools are crucial. Calculators help determine potential profits, while bots automate the execution of trades. Monitoring tools provide real-time market data, ensuring that arbitrage opportunities are not missed.
**Identifying Arbitrage Opportunities Scanning for Opportunities:** To identify profitable arbitrage opportunities, it is essential to constantly scan multiple platforms for price discrepancies. Tools like DEX aggregators can streamline this process.
**Utilizing Real-Time Data:** Real-time market data is critical. Platforms such as CoinGecko and CoinMarketCap offer valuable insights into current prices, helping traders spot discrepancies quickly.
**Optimizing Bot Performance Developing and Optimizing Bots:**
Arbitrage bots need to be fast and accurate. Developing a bot with low latency and high execution speed is vital. Regular updates to the bot's algorithms ensure it adapts to changing market conditions.
**Importance of Speed and Accuracy:** In flash loan arbitrage, speed and accuracy are paramount. Delays can result in missed opportunities or losses, so ensuring that bots execute trades with minimal lag is crucial.
**Regular Updates:** The DeFi market evolves rapidly. Regularly updating bots to incorporate new strategies and adapt to market
**changes is essential for sustained success**
**Risk Management Identifying and Mitigating Risks: **Flash loan arbitrage carries risks, including slippage, transaction fees, and smart contract vulnerabilities. Identifying these risks early and implementing measures to mitigate them is crucial.
**Setting Stop-Loss Limits:** Setting stop-loss limits can protect against unexpected market movements. Monitoring market conditions closely ensures that traders can react swiftly to minimize losses.
**Case Studies and Examples Detailed Case Studies:** Analyzing successful flash loan arbitrage strategies can provide valuable insights. For instance, a trader might exploit price differences between Uniswap and Sushiswap, executing a series of trades within a single block to realize significant profits.
**Real-World Examples:** Consider a scenario where a price discrepancy exists between two DEXs. A trader takes out a flash loan, buys an asset at a lower price on one platform, sells it at a higher price on another, repays the loan, and keeps the profit. These real-world examples highlight the potential of flash loan arbitrage.
**Legal and Ethical Considerations Legal Landscape:** The legal status of flash loan arbitrage varies by jurisdiction. It is essential to stay informed about relevant regulations to ensure compliance and avoid potential legal issues.
**Ethical Considerations:** Responsible arbitrage involves avoiding actions that could harm the market or other traders. Adhering to ethical practices ensures the sustainability and integrity of the DeFi ecosystem.
**Conclusion:**
Employing effective strategies with flash loan arbitrage bots can significantly enhance profitability in the DeFi market. By leveraging real-time data, optimizing bot performance for speed and accuracy, and implementing robust risk management practices, traders can capitalize on arbitrage opportunities swiftly and efficiently. Continuous adaptation to market conditions and adherence to ethical guidelines ensure sustainable success in this dynamic and lucrative sector of decentralized finance.
| capsey | |
1,916,971 | Top 5 Must-Read Books for Software Architects | Hey, have you ever tackled a really tough puzzle? Like one of those giant ones that sprawl across the... | 0 | 2024-07-09T08:36:47 | https://dev.to/tectrain_academy/top-5-must-read-books-for-software-architects-46en | beginners, learning, discuss, softwaredevelopment |
Hey, have you ever tackled a really tough puzzle? Like one of those giant ones that sprawl across the dining table? Well, software architecture is sort of like puzzle-solving, where each piece has to fit just right to create something amazing. It can be tricky, but with the right guidebooks, anyone can become a puzzle master.
At [Tectrain](https://tectrain.ch/en), where I collaborate with some of the most talented software architects and trainers, we regularly discuss the resources that have profoundly impacted our understanding and mastery of software architecture.
Through my experiences here, I've compiled a list of five books that stand out for their depth, insight, and practical utility in the field. These recommendations are sourced from our collective experiences and are frequently cited in [professional training sessions](https://tectrain.ch/en/academy), including the iSAQB CPSA-F courses offered across Europe.
For those looking to deepen their knowledge or refine their [skills in software architecture](https://tectrain.ch/en/software-architect-qualifications), these books are invaluable:
1. **Effective Software Architectures: A Practical Guide** by [Gernot Starke](https://tectrain.ch/en/dr-gernot-starke)
2. **Software Architecture in Practice (SEI Series in Software Engineering)** by Len Bass, Paul Clements, and Rick Kazman
3. **Learning Domain-Driven Design: Aligning Software Architecture and Business Strategy** by Vaug
4. **Get Your Hands Dirty on Clean Architecture: A Hands-On Guide to Creating Clean Web Applications with Code Examples in Java** by Tom Homberg
5. **Software Architecture Pragmatically: Transitioning from Software to Enterprise Architecture** by [Philipp Friberg](https://tectrain.ch/en/philipp-friberg)
Below is an overview of these essential readings, with links to find each on Amazon for further exploration.
## _1. Effective Software Architectures: A Practical Guide by Gernot Starke_
A cornerstone in the library of any practicing or aspiring software architect, "Effective Software Architectures: A Practical Guide" is widely recognized for its practical approach. [This book](https://www.amazon.de/Gernot-Starke/dp/3446476725/ref=pd_rhf_se_s_pd_sbs_rvi_d_sccl_1_1/259-4335018-5315445?pd_rd_w=2kJMU&content-id=amzn1.sym.d95c9896-f01c-4d4b-b9f5-65a13021c181&pf_rd_p=d95c9896-f01c-4d4b-b9f5-65a13021c181&pf_rd_r=4JE1HRX4E7QVC96B6T46&pd_rd_wg=G83Gx&pd_rd_r=2e2f9553-5e19-4127-a977-6610af6bdb2a&pd_rd_i=3446476725&psc=1) is not only a staple in our training courses but is also a guide we often refer back to for its clear, actionable strategies in building resilient software architectures.
(PS: I couldn't find the English version, if you can please leave the link as a comment)
It is especially useful for those preparing for professional certification programs like the [iSAQB CPSA-F](https://tectrain.ch/en/isaqb/foundation-cpsa-f), which are popular across Europe. The book emphasizes a hands-on approach to designing robust architectures, providing readers with a series of case studies and real-world scenarios to enhance learning.
## _2. Software Architecture in Practice (SEI Series in Software Engineering) by Len Bass, Paul Clements, and Rick Kazman_
Wondering how the apps on your phone are built to not crash when you need them most or how websites handle thousands of visitors at once? That’s where a nifty guide like "Software Architecture in Practice" comes into play.
Imagine you’re planning a road trip across Germany. You’d need a reliable map, some good tunes, and a plan for what to do if something unexpected happens, right? This book does something similar for people who make software.
It is like your roadmap through the complexities of software performance in real-world applications. It's akin to understanding what to expect when driving a car through varying conditions—ensuring it performs reliably no matter the scenario. It’s a fantastic resource for keeping your software efficient and responsive, offering practical advice and real-world examples to tackle any challenge you might face on the digital highway. [Check it out on Amazon.](https://www.amazon.com/Software-Architecture-Practice-SEI-Engineering-dp-0136886094/dp/0136886094/ref=dp_ob_title_bk)
After reading, you’ll know how to design software that's not just good but great—even when things get tough. It’s like learning to make a killer chocolate cake that won’t flop no matter how hot it gets outside.
So, if you're into making things that go on computers or phones and want them to work like a charm, this book might just become your new best friend. Plus, it’s written in a way that’s easy to chew on, like chatting about your favorite game over a slice of cake at your local café. Cool, right?
## _3. Learning Domain-Driven Design: Aligning Software Architecture and Business Strategy by Vaug_
[This book is essential](https://www.amazon.com/Learning-Domain-Driven-Design-Aligning-Architecture/dp/1098100131) for understanding how to align your software design with business needs effectively. It's like making sure the train runs on time and follows the best route—ensuring every part of your business is connected and moving smoothly towards common goals. This guide helps bridge the gap between complex software solutions and business strategies, making it a crucial read for anyone looking to enhance their project's impact.
**What Makes This Book Special?**
This isn't just another technical manual; it dives into the practical experience of applying Domain-Driven Design (DDD) in the real world, particularly through an engaging narrative about a startup. You get to see firsthand how the principles of DDD are put into action, helping a young company find its footing and rhythm. This storytelling approach not only makes the concepts more relatable but also demonstrates their practical application in live settings.
## _4. Get Your Hands Dirty on Clean Architecture: A Hands-On Guide to Creating Clean Web Applications with Code Examples in Java by Tom Homberg_
Dive into the practical side of building sleek, efficient web applications with this hands-on guide. It's like a cooking show where you not only watch but also get to cook along with detailed recipes—in this case, code examples in Java. This book is perfect for developers who learn best by doing, offering clear, actionable steps to improve your coding practices and end results. [Check it out on Amazon.](https://www.amazon.com/Hands-Dirty-Clean-Architecture-hands-ebook/dp/B07YFS3DNF/ref=sr_1_1?dib=eyJ2IjoiMSJ9.gfmXoQnb_w1ji8p-xAQ10g.sQopA5eU4FRMJDnJWlrza6--C7iM8Du9jn72k9MQhiY&dib_tag=se&keywords=9781839211966&linkCode=qs&qid=1720451830&s=books&sr=1-1)
**Who Should Read It?**
This book is perfect if you're into building web apps and want to do it better. You should have some basic coding skills, but you don’t need to be a Java guru—Tom explains the tricky parts as you go. It’s great for anyone who cares about making software that’s not just good for today but also strong enough for what might come up tomorrow.
So, if you're ready to up your coding game and keep your projects as tidy as a well-organized desk, grab a cup of your favorite brew, settle into a comfy spot, and dive into this book. You'll come away with a toolkit full of new skills to tackle any coding project more confidently and cleanly.
## _5. Software Architecture Pragmatically: Transitioning from Software to Enterprise Architecture by Philipp Friberg_
**What’s This Book All About?**
"Software Architecture Pragmatically" is your go-to guide for understanding the big picture of software systems. It starts by teaching you the core patterns and principles of software architecture. Think of it as learning the basic rules of soccer before playing in a big league. It doesn’t just throw jargon at you; instead, it walks you through everything step-by-step using a consistent example, making complex ideas as easy to understand as ordering your favorite schnitzel.
**Cool Features of the Book:**
* Learn with Real-Life Examples
* Step-by-Step Guides
* From Theory to Practice
* Resources Galore
**Who Should Pick Up This Book?**
This guide is perfect if you’re starting to feel like your current software projects aren’t challenging enough and you're ready to play in the big leagues of enterprise architecture. It’s also ideal if you’ve been part of a tech team and are now stepping into a role where you need to make bigger, bolder decisions.
[Philipp Friberg](https://tectrain.ch/en/philipp-friberg) knows that jumping into enterprise architecture can be daunting, so he’s packed this book with insights and strategies that are as easy to digest as your morning pretzel. Plus, with an included eBook version, you can carry this handy guide wherever you go, from the U-Bahn to your favorite café in Berlin. [Find it on Amazon.](https://www.amazon.de/Softwarearchitektur-pragmatisch-Weg-Software-Unternehmens-Architektur/dp/344647370X)
Each book on this list has been carefully selected based on its ability to provide actionable insights and foundational knowledge in software architecture. These readings are not just recommended; they are essential tools in the professional growth of any software architect.
| tectrain_academy |
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1,916,973 | Follow Us on Minds for the Latest Bad Bunny Merch Updates! | Stay informed about the latest Bad Bunny Merch by following us on Minds. We share updates, news, and... | 0 | 2024-07-09T08:38:11 | https://dev.to/badbunnymerch12/follow-us-on-minds-for-the-latest-bad-bunny-merch-updates-15lf | badbunnymerch, minds, latestupdates | Stay informed about the latest Bad Bunny Merch by following us on Minds. We share updates, news, and exclusive content to keep you in the loop. Join our community and stay connected!
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