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1,918,844 | From Idea to Income: Lessons from Startup Founders Who Made $25,000 Monthly | Ever wondered how startup founders achieve significant revenue milestones like $25,000 per month?... | 0 | 2024-07-10T17:46:57 | https://dev.to/resource_bunk/from-idea-to-income-lessons-from-startup-founders-who-made-25000-monthly-304b | startup, sideprojects, saas, marketing | Ever wondered how startup founders achieve significant revenue milestones like $25,000 per month? Learn their secrets in our comprehensive ebook.
Starting a startup is an exhilarating journey filled with uncertainties and challenges. However, what sets successful founders apart is their ability to navigate these challenges with strategic decisions and innovative thinking. In our latest ebook, we uncover the strategies and stories of startup founders who not only brought their ideas to life but also scaled them to generate $25,000 or more in monthly revenue.
Our ebook is designed to be your go-to resource for practical advice and inspiration in the startup world. Here’s a sneak peek into what awaits you:
1. **Early Decisions for Success:** Understand the pivotal decisions that can make or break a startup's trajectory from the outset.
2. **Lesson 1: Solve Real Problems:** Dive deep into the process of identifying genuine market needs and crafting solutions that resonate with your target audience.
3. **Lesson 2: Experiment and Adapt:** Learn how to embrace experimentation and adaptability to refine your product offerings and strategies based on real-world feedback.
4. **Lesson 3: Make Design Matter:** Explore the role of user-centric design in enhancing product usability, satisfaction, and overall success.
5. **Lesson 4: Find Your Market Fit:** Discover effective strategies for finding and optimizing your product-market fit to ensure sustainable growth.
Each chapter is enriched with insights gleaned from successful startups and founders who have navigated the complexities of entrepreneurship. Whether you're at the ideation stage or already running a startup, our ebook offers actionable strategies and invaluable lessons to propel your journey forward.
Ready to transform your startup dreams into reality? [Secure your copy of the ebook](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) today and start implementing these proven strategies! Dive into the stories of successful founders and gain the knowledge you need to achieve your own milestones. Don't wait—click [here](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) to download now and embark on your path to entrepreneurial success! | resource_bunk |
1,918,845 | Wireframing in UI/UX | You wanna know? | 0 | 2024-07-10T17:47:12 | https://dev.to/cardendante/wireframing-in-uiux-6e7 | wireframing | You wanna know? | cardendante |
1,918,846 | Why Adding More Developers to a Late Software Project Often Backfires: Understanding Brooks's Law | The statement "Adding manpower to a late software project makes it later" is famously known as... | 0 | 2024-07-10T17:48:51 | https://dev.to/malik_aboshabab_4e478e2e/why-adding-more-developers-to-a-late-software-project-often-backfires-understanding-brookss-law-2h64 | The statement "Adding manpower to a late software project makes it later" is famously known as Brooks's Law, coined by Fred Brooks in his book "The Mythical Man-Month." The principle highlights the inefficiencies and complexities introduced when additional resources are added to a project that is already behind schedule.
###Here's why this happens:
**Training and Onboarding:**
New team members need time to get up to speed with the project's current status, codebase, and workflows. This onboarding process can divert existing team members' time and resources away from productive work.
**Communication Overhead:**
As the team grows, communication becomes more complex. More people mean more communication channels and a higher likelihood of misunderstandings and miscommunications, leading to inefficiencies.
**Integration Challenges:**
Integrating new members into an existing team and workflow can lead to disruptions. New team members may inadvertently introduce bugs or issues due to their unfamiliarity with the project.
**Task Division:**
Dividing tasks among more people can be challenging, especially if the work cannot be easily parallelized. Some tasks are inherently sequential and cannot be split without introducing dependencies and bottlenecks.
**Coordination Costs:**
Increased coordination is required to keep everyone aligned and ensure that efforts are not duplicated or contradictory, further slowing down progress.
**Understanding these factors can help project managers and teams make more informed decisions about resource allocation and project timelines.** | malik_aboshabab_4e478e2e | |
1,918,847 | Understanding and Implementing Angular Structural Directives | Angular, a robust framework for building web applications, offers a range of powerful features to... | 0 | 2024-07-10T17:50:22 | https://dev.to/itsshaikhaj/understanding-and-implementing-angular-structural-directives-1i8a | webdev, angular, beginners, tutorial |
Angular, a robust framework for building web applications, offers a range of powerful features to developers. Among these, structural directives stand out as particularly influential. They enable developers to dynamically manipulate the DOM by adding, removing, or replacing elements based on specific conditions or expressions. Despite their utility, structural directives are often misunderstood. In this article, we will delve deep into Angular structural directives, exploring what they are, why they are helpful, and how to effectively use them in your projects.
## What Are Angular Structural Directives?
Angular structural directives change the structure of the DOM. They allow developers to conditionally include, repeat, or switch elements within the DOM. Structural directives are easily recognizable by the asterisk (*) prefix in their names.
### Key Structural Directives in Angular
1. **ngIf**: Conditionally includes a template based on the value of an expression that evaluates to a Boolean.
2. **ngFor**: Iterates over an array and renders the template for each item.
3. **ngSwitch**: Conditionally renders one of many templates based on a matching expression.
### Example Syntax
Here’s an example of how to use the `*ngIf` directive:
```html
<div *ngIf="isVisible">This content is conditionally visible.</div>
```
If `isVisible` evaluates to true, the div element will be rendered; otherwise, it will be removed from the DOM.
## How Do Angular Structural Directives Work?
To utilize structural directives, you place an element with the directive in your HTML template. Based on the condition or expression provided, the element will be added, removed, or replaced in the DOM.
### Using the `*ngIf` Directive
The `*ngIf` directive conditionally displays an element based on an expression. If the expression evaluates to true, the element is rendered; if false, it is removed from the DOM.
#### Example
Create a simple toggle component in your Angular app:
**app.component.html**
```html
<h1>
<button (click)="toggleVisibility()">Toggle Visibility</button>
</h1>
<div *ngIf="isVisible">
<h2>Visible Content</h2>
<p>This content is visible when the toggle is on.</p>
</div>
```
**app.component.ts**
```typescript
import { Component } from '@angular/core';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
isVisible: boolean = true;
toggleVisibility() {
this.isVisible = !this.isVisible;
}
}
```
In this example, clicking the button toggles the visibility of the content. The `*ngIf` directive conditionally includes the div based on the `isVisible` variable.
### Using the `*ngFor` Directive
The `*ngFor` directive repeats an element for each item in a list.
#### Example
Create a component that displays a list of users:
**users.component.html**
```html
<ul>
<li *ngFor="let user of users">{{ user.name }}</li>
</ul>
```
**users.component.ts**
```typescript
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-users',
templateUrl: './users.component.html',
styleUrls: ['./users.component.css']
})
export class UsersComponent implements OnInit {
users = [
{ name: 'Alice' },
{ name: 'Bob' },
{ name: 'Charlie' }
];
constructor() { }
ngOnInit(): void { }
}
```
In this example, the `*ngFor` directive iterates over the `users` array and renders a list item for each user.
### Using the `*ngSwitch` Directive
The `*ngSwitch` directive conditionally renders a set of elements based on the value of an expression.
#### Example
Create a component that displays different messages based on the selected item:
**status.component.html**
```html
<div [ngSwitch]="status">
<p *ngSwitchCase="'active'">The status is active.</p>
<p *ngSwitchCase="'inactive'">The status is inactive.</p>
<p *ngSwitchDefault>The status is unknown.</p>
</div>
```
**status.component.ts**
```typescript
import { Component } from '@angular/core';
@Component({
selector: 'app-status',
templateUrl: './status.component.html',
styleUrls: ['./status.component.css']
})
export class StatusComponent {
status: string = 'active'; // Change this value to test different cases
}
```
In this example, the `*ngSwitch` directive renders different messages based on the value of the `status` variable.
## When Should You Use Angular Structural Directives?
Structural directives are particularly useful when you need to:
- Conditionally add or remove elements from the DOM.
- Iterate over a list of items and render them dynamically.
- Render elements based on different conditions, similar to switch-case logic.
### Practical Applications
1. **Dynamic Forms**: Use `*ngIf` to conditionally display form fields based on user input.
2. **Lists and Tables**: Use `*ngFor` to render lists or tables of data.
3. **Dynamic Content**: Use `*ngSwitch` to render different components or templates based on application state.
## Conclusion
Angular structural directives are a cornerstone of dynamic and responsive web applications. By mastering `*ngIf`, `*ngFor`, and `*ngSwitch`, you can efficiently control the structure of your DOM, making your applications more interactive and user-friendly.
By integrating these powerful tools into your Angular projects, you can enhance both the functionality and user experience of your applications. Happy coding! | itsshaikhaj |
1,918,849 | Insights from Founders Who Grew $25,000 Monthly | Explore the strategies and stories behind startup founders who cracked the code to achieving $25,000... | 0 | 2024-07-10T17:50:26 | https://dev.to/resource_bunk/insights-from-founders-who-grew-25000-monthly-2gdp | startup, marketing, tutorial, beginners | Explore the strategies and stories behind startup founders who cracked the code to achieving $25,000 a month in revenue.
Embarking on the journey of entrepreneurship is both exhilarating and daunting. For startup founders aiming to achieve significant revenue milestones like $25,000 per month, strategic decisions and insights from successful peers can be invaluable. Our latest ebook dives deep into the experiences and strategies of founders who have successfully scaled their startups to achieve impressive financial milestones.
In our ebook, you'll uncover a wealth of practical advice and real-world examples that can guide you on your entrepreneurial path:
1. **Early Decisions for Success:** Learn about the foundational decisions that set the stage for sustainable growth and profitability.
2. **Lesson 1: Solve Real Problems:** Understand how successful startups identify and address critical pain points in their target markets.
3. **Lesson 2: Experiment and Adapt:** Explore the importance of continuous experimentation and adaptation in refining products and strategies.
4. **Lesson 3: Make Design Matter:** Discover strategies for integrating user-centric design principles to enhance product appeal and user satisfaction.
5. **Lesson 4: Find Your Market Fit:** Gain insights into effective methods for discovering and optimizing your product-market fit.
Each chapter is crafted to provide actionable insights and strategies that you can implement immediately in your startup journey. Whether you're in the early stages of launching your business or seeking to scale it to new heights, our ebook offers the guidance you need.
Ready to accelerate your startup's growth? [Get your hands on our ebook](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) today and start applying these proven strategies! Don't miss out on this opportunity to learn from successful founders who have paved the way. Click [here](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) to download your copy now and embark on your path to entrepreneurial success! | resource_bunk |
1,918,850 | Lessons from $25,000-Monthly Founders | Gain insider knowledge from startup founders who turned visions into profitable realities, earning... | 0 | 2024-07-10T17:52:06 | https://dev.to/resource_bunk/lessons-from-25000-monthly-founders-512o | startup, beginners, tutorial, marketing | Gain insider knowledge from startup founders who turned visions into profitable realities, earning $25,000 monthly and beyond.
Starting a successful startup requires more than just a great idea—it demands strategic decisions, resilience, and a deep understanding of market dynamics. Our latest ebook is a comprehensive guide that unveils the strategies and stories behind startup founders who have achieved significant revenue milestones, earning $25,000 per month or more.
Dive into our ebook to uncover actionable insights and lessons that can transform your startup journey:
1. **Early Decisions for Success:** Learn about the critical decisions startup founders make early on to set the stage for sustainable growth and profitability.
2. **Lesson 1: Solve Real Problems:** Discover how successful startups identify and address pressing challenges in their target markets with innovative solutions.
3. **Lesson 2: Experiment and Adapt:** Explore the importance of agility and adaptation in refining products and strategies based on market feedback.
4. **Lesson 3: Make Design Matter:** Understand the role of user-centric design in creating products that resonate with customers and drive engagement.
5. **Lesson 4: Find Your Market Fit:** Gain insights into effective strategies for finding and optimizing your product-market fit to maximize growth potential.
Each chapter in our ebook is packed with practical advice, real-world case studies, and expert tips from founders who have navigated the complexities of entrepreneurship. Whether you're at the idea stage or scaling your startup, these insights will equip you with the knowledge needed to make informed decisions and achieve sustainable success.
Ready to take your startup to new heights? [Secure your copy of the ebook](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) today and start implementing these proven strategies! Don't miss out on this opportunity to learn from successful founders who have been in your shoes. Click [here](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) to download now and pave your way to entrepreneurial success! | resource_bunk |
1,918,851 | Voxel51 Filtered Views Newsletter - July 12, 2024 | Author: Harpreet Sahota (Hacker in Residence at Voxel51) Welcome to Voxel51’s bi-weekly digest of... | 0 | 2024-07-12T14:56:51 | https://voxel51.com/blog/voxel51-filtered-views-newsletter-july-12-2024/ | computervision, machinelearning, datascience, ai | _Author: [Harpreet Sahota](https://www.linkedin.com/in/harpreetsahota204/) (Hacker in Residence at [Voxel51](https://voxel51.com/))_
Welcome to Voxel51’s bi-weekly digest of the latest trending AI, machine learning and computer vision news, events and resources! [Subscribe to the email version](https://voxel51.com/filtered-views-newsletter/).
## 📰 The Industry Pulse
### OMG-LLaVA: Bridging Image-level, Object-level, Pixel-level Reasoning and Understanding
[OMG-LLaVA](https://lxtgh.github.io/project/omg_llava/) combines robust pixel-level vision understanding with reasoning abilities in a single end-to-end trained model. It uses a universal segmentation method as the visual encoder to integrate image information, perception priors, and visual prompts into visual tokens provided to a large language model (LLM).
The LLM is responsible for understanding the user's text instructions and providing text responses and pixel-level segmentation results based on the visual information. This allows OMG-LLaVA to achieve image-level, object-level, and pixel-level reasoning and understanding, matching or surpassing the performance of specialized methods on multiple benchmarks.
What you need to know:
- Elegant end-to-end training of one encoder, one decoder, and one LLM rather than using an LLM to connect multiple specialist models
- Ability to accept various visual and text prompts for flexible user interaction
- Strong performance on image, object, and pixel-level reasoning tasks compared to specialized models
Instructions on running the model are [here](https://github.com/lxtGH/OMG-Seg/tree/main/omg_llava), and you can run the demo on Hugging Face Spaces [here](https://huggingface.co/spaces/LXT/OMG_Seg).
### The Robots are Coming for Our Jobs!
[Source](https://www.therobotreport.com/agility-robotics-digit-humanoid-lands-first-official-job/)
Agility Robotics has signed a multi-year deal with GXO Logistics to deploy its Digit humanoid robots in various logistics operations. The first official deployment is already underway at a Spanx facility in Connecticut, where a small fleet of Digit robots is being used under a robotics-as-a-service (RaaS) model.
Digit robots pick up totes from 6 River Systems' Chuck autonomous mobile robots (AMRs) and place them onto conveyors at the Spanx facility. Digit can handle empty and full totes and pick them up from an AMR's bottom or top shelf. The robots are orchestrated through Agility Arc, the company's cloud automation platform.
GXO Logistics also tests other humanoid robots, such as Apollo from Apptronik. There are currently no safety standards specifically for humanoids. Most manufacturers and integrators are leveraging existing industrial robot standards as a baseline, and Digit is not working with or near humans at the Spanx facility.
### The Robots Are Going to Help Us with ADHD!
[Source](https://today.ucsd.edu/story/meet-carmen-a-robot-that-helps-people-with-mild-cognitive-impairment)
[CARMEN (Cognitively Assistive Robot for Motivation and Neurorehabilitation)](https://cseweb.ucsd.edu/~lriek/papers/hri2024-bouzida.pdf) is a small, tabletop robot designed to help people with mild cognitive impairment (MCI) learn skills to improve memory, attention, and executive functioning at home.
Developed by researchers at UC San Diego in collaboration with clinicians, people with MCI, and their care partners, CARMEN is the only robot that teaches compensatory cognitive strategies to help improve memory and executive function.
Here’s what CARMEN is currently capable of:
- Delivers simple cognitive training exercises through interactive games and activities
- Designed to be used independently without clinician or researcher supervision
- Plug and play with limited moving parts and able to function with limited internet access
- Communicates clearly with users, expresses compassion and empathy, and provides breaks after challenging tasks
In a study, CARMEN was deployed for a week in the homes of several people with MCI and clinicians experienced in working with MCI patients.
After using CARMEN, participants with MCI reported trying strategies they previously thought were impossible and finding the robot easy to use. The next steps include:
- Deploying CARMEN in more homes.
- Enabling conversational abilities while preserving privacy.
- Exploring how the robot could assist users with other conditions like ADHD.
Many elements of the CARMEN project are [open-source and available on GitHub](https://github.com/UCSD-RHC-Lab/CARMEN).
## 💎 GitHub Gems
You didn’t think the FiftyOne team would sleep on the Florence2 release, did you?
Jacob Marks, OG DevRel at FiftyOne, created the `[fiftyone_florence2_plugin](https://github.com/jacobmarks/fiftyone_florence2_plugin)` repository on GitHub. This repository is a plugin for integrating the Florence2 model into the FiftyOne open-source computer vision tool.
The key components of the plugin include:
- Code to load the Florence2 model and generate embeddings and predictions on image data
- Integration with FiftyOne to visualize the Florence2 model outputs alongside the image dataset
[Here’s a notebook that shows you how to use the plugin!](https://colab.research.google.com/drive/1QGskMcqbbR1hRAtWiTY4Hka7PbmpyQLm?usp=sharing)
## 📙 Good Reads
This week’s good read is a massive collaborative [three](https://www.oreilly.com/radar/what-we-learned-from-a-year-of-building-with-llms-part-i/) [part](https://www.oreilly.com/radar/what-we-learned-from-a-year-of-building-with-llms-part-ii/) [series](https://www.oreilly.com/radar/what-we-learned-from-a-year-of-building-with-llms-part-iii-strategy/) by some popular AI/ML folks on Twitter titled “What We Learned from a Year of Building with LLMs.”
It’s a solid read with some down-to-earth, practical, no-nonsense advice. If you’ve been building with AI/ML for a while, you’ll find that what they say about building with LLMs isn’t too different from what you already know. I feel kinda smart reading this and having many of my thoughts and experiences validated by several people in this space that I admire and consider virtual mentors.
Here’s what I think are the best pieces of advice from the series:
- Retrieval-augmented generation (RAG) will remain important even with long-context LLMs. Effective retrieval is still needed to select the most relevant information to feed the model. A hybrid approach combining keyword search and vector embeddings tends to work best.
- Break complex tasks into step-by-step, multi-turn flows executed in a deterministic way. This can significantly boost performance and reliability compared to a single prompt or non-deterministic AI agent.
- Rigorous, continuous evaluation using real data is critical. Have LLMs evaluate each other's outputs, but don't rely on that alone. Regularly review model inputs and outputs yourself to identify failure modes. Design the UX to enable human-in-loop feedback.
- Building LLM apps requires diverse roles beyond AI engineers. It is key to hire the right people at the right time, like product managers, UX designers, and domain experts. Focus on the end-to-end process, not just the core LLM.
- Center humans in the workflow and use LLMs to enhance productivity rather than replace people entirely. Build AI that supports human capabilities.
- Use LLM APIs to validate ideas quickly, but consider self-hosting for more control and savings at scale. Avoid generic LLM features; differentiate your core product.
- LLM capabilities are rapidly increasing while costs decrease. Plan for what's infeasible now to become economical soon. Move beyond demos to reliable, scalable products, which takes significant engineering.
- The technology is less durable than the system and data flywheel you build around it. Start simple, specialize in memorable UX, and adapt as the tech evolves. A thoughtful, human-centred strategy is essential.
Many of the authors recently appeared [on a podcast](https://www.youtube.com/watch?v=c0gcsprsFig) (which I haven’t listened to yet) to discuss the piece and answer questions from the audience.
## 🎙️ Good Listens
[Aravind Srinivas: Perplexity CEO on the Lex Fridman Podcast
](https://lexfridman.com/aravind-srinivas/)
I’m a huge fan of [Perplexity.ai](http://perplexity.ai).
Perplexity AI is an "answer engine" that provides direct answers to questions by retrieving relevant information from the web and synthesizing it into a concise response using large language models. Every sentence in the answer includes a citation. It uses a retrieval augmented generation (RAG) approach - retrieving relevant documents for a query, extracting key snippets, and using those to generate an answer. The LLM is constrained only to use information from the retrieved sources.
I first heard about it at the beginning of the year, and after using the free tier for two weeks, I realized that it’s a tool worth investing in. I quickly signed up for their “Pro” tier, and it accelerated the pace at which I could conduct research and access knowledge.
I was so excited when I saw Perplexity CEO [Aravin Srinivas](https://twitter.com/AravSrinivas) on the Lex Fridman podcast. I’ve only heard him on short-form podcasts, which always left me wanting to hear more from him. In a three-hour conversation (which I’ve listened to twice), Aravind and Lex discussed Perplexity's technical approach, product vision, competitive landscape, and the future of AI and knowledge dissemination on the internet.
Here’s some interesting takeaways from this conversation:
- Indexing the web involves complex crawling, content extraction, and ranking using traditional methods like BM25 and newer approaches with LLMs and embeddings. Serving answers with low latency at scale is an engineering challenge.
- Perplexity has a web crawler called PerplexityBot that decides which URLs and domains to crawl and how frequently. It has to handle JavaScript rendering and respect publisher policies in robots.txt. Building the right index is key.
- Perplexity uses a RAG architecture in which, given a query, it retrieves relevant documents and paragraphs and uses those to generate an answer. The key principle is only to say things that can be cited from the retrieved documents.
- There are multiple ways hallucinations can occur in the answers—if the model is not skilled enough to understand the query and paragraphs semantically, if the retrieved snippets are poor quality or outdated, or if too much irrelevant information is provided to the model. Improving retrieval quality, snippet freshness, and model reasoning abilities can reduce hallucinations.
- Increasing the context window length (e.g., to 100K+ tokens) allows ingesting more detailed pages while answering. However, if too much information confuses the model, there are tradeoffs with the instruction-following performance.
- By incorporating human feedback into the training process via RLHF, Perplexity wants to create an AI knowledge assistant that provides high-quality, relevant answers to user queries. The goal is for the AI to understand the user's intent and give them the information they seek.
Here are a few clips from the conversation that you might find insightful:
- [How Perplexity works](https://www.youtube.com/watch?v=Q0ncaAwnn-o)
- [How web crawlers work](https://www.youtube.com/watch?v=Ci6N3ghLlr0)
- [Simple advice for writing academic papers](https://www.youtube.com/watch?v=-NnCWB5EPjk)
## 👨🏽🔬 Good Research: Is Tokenization the Key to Truly Multimodal Models?
A lot of what's being hyped as a "multimodal model" these days is basically just vision-language models, which really aren't multimodal because they're just two modalities.
While these models have yielded impressive results and serve as a foundation for more sophisticated architectures, they're basically some type of Frankenstein monster. You glue together a pretrained vision encoder and text encoder, freeze the vision encoder, and let gradients flow through the text encoder during training. Don't get me wrong, VLMs are an important step toward more comprehensive multimodal AI, but this architectural choice has limitations in fully integrating the modalities.
I don’t mean to downplay our progress so far, and I fully appreciate how difficult it is to unify diverse modalities into a single model.
Modalities be all over the place with their dimensionality, types, and values. Images are typically represented as high-dimensional tensors with spatial relationships. In contrast, text is represented as variable-length sequences of discrete tokens. Structured data like vectors and poses have unique formats and characteristics. Feature maps, intermediate representations learned by neural networks, add another layer of complexity to multimodal learning.
Recent approaches to multimodal learning often rely on separate encoders for each modality, such as vision transformers for images and large language models for text. Or, ImageBind, able to encode six modalities, projects four modalities into a frozen CLIP embedding space, essentially aligning them with the vision and language modalities.
While these specialized encoders can effectively process their respective modalities, they create a bottleneck when fusing information across modalities, as they lack a common representation space.
However, new research from Apple might just change the way we architect multimodal networks.
The _[4M-21: An Any-to-Any Vision Model for Tens of Tasks and Modalities](https://arxiv.org/abs/2312.06647)_ introduces an any-to-any model that can handle 21 modalities across the following categories: RGB, geometric, semantic, edges, feature maps, metadata, and text modalities. Check out the demo [here](https://huggingface.co/spaces/EPFL-VILAB/4M).
And the big insight in the paper: It all comes down to tokenization.
To address the challenge of unifying diverse modalities, the 4M-21 model introduces modality-specific tokenization schemes that convert each data type into a sequence of discrete tokens. This tokenization scheme unifies the representation of various modalities into a common space of discrete tokens, allowing a single model to handle all of them with the same architecture and training objective. And, what I think is the coolest part about tokenizing in this way is now all tasks that the model can handle are formulated as a per-token classification problem, which can be trained with a cross-entropy loss using an encoder-decoder based transformer.
I want to focus on the tokenization for this post, but [I encourage you to check out the project page](https://4m.epfl.ch/) to learn more. Here are my Cliff's Notes on the tokenizer:
- For image-like modalities such as RGB, surface normals, depth, and feature maps from models like CLIP, DINOv2, and ImageBind, they used Transformer-based VQ-VAE tokenizers. These tokenizers compress the dense, high-dimensional image data into a smaller grid of discrete tokens (e.g., 14x14 or 16x16) while preserving the spatial structure. They also used a diffusion decoder for edges to generate more visually plausible reconstructions. The autoencoders learn to encode spatial patches of an image into discrete tokens, effectively capturing local patterns and spatial structure. The VQ-VAEs can map similar patches to the same token using a discrete latent space, providing a compact and semantically meaningful representation.
- For non-image-like modalities such as DINOv2 and ImageBind global embeddings and 3D human poses, they employed MLP-based discrete VAEs with Memcodes quantization. This allows compressing the vectors or pose parameters into a small set of discrete tokens (e.g., 16) without imposing any spatial structure. . These autoencoders learn to map continuous inputs to discrete latent variables, which the shared transformer architecture can then process. By discretizing the continuous data, the model can more effectively capture and reason about their underlying structure and relationships.
- For text-based modalities like captions, object bounding boxes, image metadata, and color palettes, they utilized a shared WordPiece tokenizer with special token prefixes to encode the type and value of each data field. This tokenizer breaks down words into subword units, allowing the model to handle out-of-vocabulary words and maintain a fixed vocabulary size. Using a shared vocabulary across all modalities, the WordPiece tokenizer enables the model to learn cross-modal associations and alignments.
The modality-specific tokenization schemes in 4M-21 seems promising.
It provides a common representation space for all modalities, enabling the model to process them using a shared architecture. It also preserves modality-specific information, such as spatial structure in images and semantic meaning in text, which is crucial for effective multimodal learning and reasoning. Finally, converting all data types into sequences of discrete tokens enables cross-modal interactions and attention mechanisms, allowing different modalities to communicate and exchange information.
## 🗓️. Upcoming Events
Check out these upcoming AI, machine learning and computer vision events! [View the full calendar and register for an event.](https://voxel51.com/computer-vision-events/)
 | jguerrero-voxel51 |
1,918,853 | The "prose" class: my content best friend | The struggle is real Let's be honest: if you're a developer who would rather spend more... | 0 | 2024-07-11T19:34:25 | https://dev.to/karmenatwork/the-prose-class-my-content-best-friend-40l0 | ## The struggle is real
Let's be honest: if you're a developer who would rather spend more time coding the business logic than designing (like me), you celebrated 🎉 big time when CSS frameworks came into our coding lives. I'm sure you have used some of the general-purpose frameworks such as[bootstrap](https://getbootstrap.com/) or [bulma](https://bulma.io/) or the utility-base [Tailwind CSS](https://tailwindcss.com/).
I'm very feliz feliz como una lombriz 🐛-- aka very happy with these time-saving frameworks. However, styling long-form content like blog posts, articles, or documentation can be tedious. You need to consider headings, paragraphs, lists, quotes, code blocks – the list goes on, and if you aren't an expert, you can spend a lifetime! I used to spend hours tweaking CSS to make headings look not terrible and paragraphs consistent and readable.
### Enter the Hero: The "prose" Class
If you're a fan of Tailwind CSS's utility-first approach, you might have overlooked one of its most powerful plugins: `@tailwindcss/typography`. Specifically, the plugin's `prose` class can be a game-changer for making your web content look polished and professional with minimal effort. The "prose" class simplifies your journey by providing a predefined set of styles that adhere to Tailwind CSS's design principles.
### Why "prose" Is My New Best Friend
**Plays Nice with Markdown:**:
One of my clients heavily uses Markdown; the plugin's `prose` class has given its website's content a makeover and made my job much more manageable. If you write in Markdown, `prose` seamlessly works with the HTML output of your favorite Markdown parser.
**Consistent Styling**
Say goodbye to the chaos of mismatched fonts and inconsistent formatting; `prose` creates a unified visual language for your content. By applying the "prose" class to any container element, you instantly inherit a well-crafted typography scale that adjusts font sizes, line heights, margins, and other typographic styles.
**It's customizable!**
While `prose` defaults are great! You can easily override styles through Tailwind's config file and tweak colors, fonts, and styles to your heart's content.
**It's responsive!** `prose` adapts gracefully to different screen sizes, so your content looks fantastic on mobile phones and desktops.
### When to Use prose
Say no more, the `prose` class is perfect for any Situation _Where Readability Matters_ such as: Blog Posts, Articles and Documentation.
### How to Use prose
1. Install the Plugin: Add `@tailwindcss/typography` to your project.
2. Configure (Optional): Tailwind's configuration file lets you customize the prose styles to your liking.
3. Apply the Class: Simply add the prose class to the container element that wraps your content.
```html
<article class="prose">
<h1>Feliz Feliz como una lombriz! Blog Post</h1>
<p>Now 100% visual pleasant!</p>
</article>
```
For example, you could write a React component to wrap all your `<div>` or `<article>` tags.
```js
import clsx from 'clsx';
interface ProseWrapperProps {
className?: string;
children: React.ReactNode;
}
function ProseWrapper({ className, children }: React.ComponentPropsWithoutRef<'div'> & ProseWrapperProps) {
const wrapperClasses = clsx('prose', className);
return (
<div className={wrapperClasses}>
{children}
</div>
);
}
export default ProseWrapper;
```
Adding the class `prose` to your content's website adjusts font sizes and line heights for easy reading, adds the right amount of spacing between elements, styles headings, lists, blockquote, and code blocks.
**There is more!** The "prose" class comes in different sizes, like a perfect t-shirt:
- `prose-sm`: For a more intimate, cozy read
- `prose-lg`: When you want your words to stand tall
- `prose-xl`: For making a big impression
- `prose-2xl`: When you need your text to be the star of the show
**Wrapping Up**
The `prose` class from `@tailwindcss/typography` is the secret sauce that'll make your content shine 💫. It's easy to use, powerful, and will make your typography look so good,
| karmenatwork | |
1,918,854 | Achieving $25,000 Monthly | Discover the proven strategies and compelling stories behind startup founders who achieved impressive... | 0 | 2024-07-10T17:55:47 | https://dev.to/resource_bunk/achieving-25000-monthly-48dc | beginners, tutorial, productivity, news | Discover the proven strategies and compelling stories behind startup founders who achieved impressive revenue milestones.
Embarking on the journey of entrepreneurship is both thrilling and challenging. For startup founders aiming to achieve significant revenue milestones like $25,000 per month, learning from those who have successfully navigated similar paths can provide invaluable insights. Our latest ebook is a treasure trove of strategies and lessons learned from startup founders who have cracked the code to achieving consistent monthly revenues of $25,000 or more.
Here's what awaits you in our ebook:
1. **Early Decisions for Success:** Explore the foundational decisions that set the stage for sustainable growth and profitability.
2. **Lesson 1: Solve Real Problems:** Learn how successful startups identify and address critical pain points in their target markets.
3. **Lesson 2: Experiment and Adapt:** Discover the importance of experimentation and adaptability in refining products and strategies based on real-world feedback.
4. **Lesson 3: Make Design Matter:** Understand how to integrate user-centric design principles to enhance product usability and customer satisfaction.
5. **Lesson 4: Find Your Market Fit:** Gain insights into effective methods for discovering and optimizing your product-market fit to drive growth.
Each chapter in our ebook is packed with practical advice, real-life case studies, and actionable strategies that you can implement in your own startup journey. Whether you're in the ideation phase or looking to scale your existing business, these insights will empower you to make informed decisions and achieve sustainable success.
Ready to elevate your startup to the next level? [Download your copy of the ebook](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) today and start applying these proven strategies! Don't miss out on the opportunity to learn from successful founders who have paved the way. Click [here](https://resourcebunk.gumroad.com/l/Strategies-and-Stories-from-startup-founders-who-grew-25000-a-month?layout=profile) to get started on your path to entrepreneurial success! | resource_bunk |
1,919,484 | How do I print Dymo labels? | Printing Dymo labels involves a few straightforward steps, from setting up your Dymo label printer to... | 0 | 2024-07-11T09:17:50 | https://dev.to/john10114433/how-do-i-print-dymo-labels-39pp | Printing Dymo labels involves a few straightforward steps, from setting up your Dymo label printer to designing and printing your labels. Here’s a step-by-step guide to help you through the process:[dymo 30252 labels](https://betckey.com/collections/hot-sale/products/dymo-30252-compatible-address-and-barcode-labels)
1. Set Up Your Dymo Label Printer
a. Unbox and Assemble: Remove the Dymo label printer from its packaging. Follow the included instructions to assemble any parts, such as the label roll holder.
b. Connect to Power: Plug the power adapter into the printer and then into an electrical outlet. Turn on the printer using the power button.
c. Install Labels: Open the label compartment, insert the label roll, and thread the labels through the printer’s feed path. Ensure that the labels are aligned properly and close the compartment.
d. Install Printer Software: Download and install the Dymo Label Software from the Dymo website. This software is necessary for designing and printing labels.
2. Design Your Labels
a. Open Dymo Label Software: Launch the Dymo Label Software on your computer. This software is compatible with both Windows and Mac operating systems.
b. Choose Label Type: Select the type of label you are using from the list of label sizes in the software. Ensure you choose the correct label size for your printer and roll.
c. Design Your Label: Use the design tools within the software to create your label. You can add text, images, barcodes, and shapes. Customize the font, size, and color to suit your needs.
d. Preview Your Design: Use the preview function to see how your label will look before printing. This helps to ensure that everything is aligned and formatted correctly.
3. Print Your Labels
a. Connect the Printer: Ensure your Dymo label printer is connected to your computer via USB or network connection, depending on your model.
b. Load the Label: Make sure the label roll is properly loaded in the printer, and the labels are correctly aligned.
c. Send to Print: In the Dymo Label Software, click the “Print” button to send your label design to the printer. Select the number of copies you need and any other print settings if applicable.
d. Check Printing: Wait for the label to print and check the output for accuracy. If there are any issues, make sure the label roll is correctly installed and the printer settings are correct.
4. Troubleshoot Common Issues
a. Label Jams: If you experience label jams, open the label compartment and carefully remove any jammed labels. Check for any obstructions in the feed path.
b. Poor Print Quality: Ensure that the print head is clean and the label roll is properly installed. Use the cleaning tools recommended by Dymo to clean the print head and rollers.
c. Software Issues: If you encounter issues with the Dymo Label Software, try restarting the software or reinstalling it. Ensure your printer drivers are up to date.
d. Connectivity Issues: Check that the printer is properly connected to your computer and that any necessary drivers are installed. For network printers, ensure the printer is connected to the correct network.
5. Maintain Your Printer
a. Regular Cleaning: Clean the print head and rollers regularly to maintain print quality and prevent issues.[dymo 30252](https://betckey.com/collections/hot-sale/products/dymo-30252-compatible-address-and-barcode-labels)
b. Proper Storage: Store label rolls in a cool, dry place to prevent damage. Avoid exposing labels to extreme temperatures or direct sunlight.
c. Software Updates: Keep your Dymo Label Software and printer firmware updated to ensure compatibility and access to the latest features.
By following these steps, you should be able to efficiently print Dymo labels for various applications. If you encounter specific issues or need additional assistance, refer to the user manual for your Dymo printer or contact Dymo customer support. | john10114433 | |
1,918,855 | VaultWarden: Dein lokaler Passwortmanager | Vaultwarden bietet eine schlanke, ressourcenschonende und kostenfreie Alternative zu Bitwarden.... | 0 | 2024-07-10T18:00:59 | https://blog.disane.dev/vaultwarden-dein-lokaler-passwortmanager/ | passwortmanager, sicherheit, docker, homelab | Vaultwarden bietet eine schlanke, ressourcenschonende und kostenfreie Alternative zu Bitwarden. Entdecke die Vorteile und erfahre, wie Du Vaultwarden installierst! 🛠️
---
Wenn Du auf der Suche nach einem sicheren und kosteneffizienten Passwortmanager bist, dann könnte Vaultwarden genau das Richtige für Dich sein. Vaultwarden, früher bekannt als Bitwarden\_RS, ist eine schlanke und effiziente Implementierung des beliebten Passwortmanagers Bitwarden, die speziell darauf abzielt, ressourcenschonend zu sein und auf einer Vielzahl von Plattformen zu laufen. In diesem Artikel werden wir die Vorteile von Vaultwarden beleuchten, erklären, wie Du Vaultwarden installierst und auf die Kompatibilität zu Bitwarden-Extensions eingehen.
## Was ist Vaultwarden? 🤔
Vaultwarden ist eine in Rust geschriebene Implementierung des Bitwarden-Servers. Es bietet alle wesentlichen Funktionen des offiziellen Bitwarden-Dienstes, jedoch ohne den damit verbundenen Overhead. Vaultwarden kann auf verschiedenen Plattformen, einschließlich kleiner ARM-Geräte wie dem Raspberry Pi, ausgeführt werden und benötigt dabei nur minimale Ressourcen. Dies macht es zu einer idealen Wahl für Heimnetzwerke oder kleine Unternehmen, die ihre Passwortverwaltung selbst in die Hand nehmen möchten.
[GitHub - dani-garcia/vaultwarden: Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden\_rsUnofficial Bitwarden compatible server written in Rust, formerly known as bitwarden\_rs - dani-garcia/vaultwarden](https://github.com/dani-garcia/vaultwarden)
## Vorteile von Vaultwarden 🌟
### Kostenfrei und Open-Source 💸
Vaultwarden ist komplett kostenfrei und der Quellcode ist öffentlich zugänglich. Das bedeutet, Du kannst es nach Belieben anpassen und sicherstellen, dass keine versteckten Funktionen oder Hintertüren vorhanden sind. Die aktive Community trägt kontinuierlich zur Verbesserung bei und bietet Support.
### Geringe Systemanforderungen 🖥️
Im Gegensatz zu anderen Passwortmanagern benötigt Vaultwarden nur sehr wenige Ressourcen. Selbst auf einem Raspberry Pi oder einem alten PC läuft es reibungslos, was es besonders attraktiv für Heimnetzwerke und kleine Unternehmen macht.
### Volle Kontrolle über Deine Daten 🔒
Mit Vaultwarden hostest Du Deinen eigenen Passwortserver. Das bedeutet, Du hast die volle Kontrolle über Deine Daten und musst diese nicht einem Drittanbieter anvertrauen. Dies erhöht die Sicherheit und den Datenschutz erheblich.
### Kompatibilität mit Bitwarden-Clients und -Extensions 🧩
Vaultwarden ist vollständig kompatibel mit den offiziellen Bitwarden-Clients und -Browsererweiterungen. Das bedeutet, Du kannst die gleichen Apps und Erweiterungen wie bei Bitwarden verwenden, was den Umstieg sehr einfach macht.
### Einfache Installation und Verwaltung 🛠️
Vaultwarden lässt sich leicht installieren und verwalten, selbst wenn Du kein IT-Experte bist. Es gibt zahlreiche Anleitungen und eine aktive Community, die Dir bei Fragen weiterhilft.
## Installation von Vaultwarden 🚀
Die Installation von Vaultwarden ist unkompliziert und kann auf verschiedenen Plattformen durchgeführt werden. Hier ist eine Schritt-für-Schritt-Anleitung für die Installation auf einem Linux-Server.
### Voraussetzungen 📋
* Ein Linux-Server (Ubuntu, Debian oder CentOS)
* Docker installiert
* Ein funktionierender Webserver (z.B. Nginx oder Apache)
### Docker installieren 🐋
Falls Docker noch nicht installiert ist, kannst Du es mit den folgenden Befehlen installieren:
```bash
sudo apt update
sudo apt install docker.io -y
sudo systemctl start docker
sudo systemctl enable docker
```
### Docker-Compose installieren 🛠️
Docker-Compose ist ein Werkzeug, das es ermöglicht, Multi-Container Docker-Anwendungen zu definieren und auszuführen. Installiere es mit:
```bash
sudo apt install docker-compose -y
```
### Vaultwarden herunterladen und starten 📦
Erstelle ein neues Verzeichnis für Vaultwarden und erstelle eine `docker-compose.yml` Datei:
```bash
mkdir vaultwarden
cd vaultwarden
nano docker-compose.yml
```
Füge den folgenden Inhalt in die `docker-compose.yml` Datei ein:
```yaml
version: '3'
services:
vaultwarden:
image: vaultwarden/server:latest
container_name: vaultwarden
environment:
- ADMIN_TOKEN=dein_admin_token # Ersetze 'dein_admin_token' durch ein sicheres Token
volumes:
- ./vw-data:/data
ports:
- 80:80
restart: unless-stopped
```
Speichere die Datei und schließe den Editor. Starte dann Vaultwarden mit:
```bash
docker-compose up -d
```
### Einrichten des Webservers 🌐
Um den Zugriff auf Vaultwarden sicherer zu machen, kannst Du einen Reverse-Proxy mit Nginx oder Apache einrichten und HTTPS verwenden. Hier ein Beispiel für die Konfiguration mit Nginx:
```nginx
server {
listen 80;
server_name dein_domain_name; # Ersetze 'dein_domain_name' durch Deine Domain
location / {
proxy_pass http://localhost:80;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
```
Speichere die Konfigurationsdatei und aktiviere sie:
```bash
sudo ln -s /etc/nginx/sites-available/vaultwarden /etc/nginx/sites-enabled/
sudo systemctl restart nginx
```
### HTTPS mit Let's Encrypt einrichten 🔒
Um HTTPS zu verwenden, kannst Du Let's Encrypt und Certbot verwenden. Installiere Certbot mit:
```bash
sudo apt install certbot python3-certbot-nginx -y
```
Fordere ein Zertifikat an und konfiguriere Nginx automatisch:
```bash
sudo certbot --nginx -d dein_domain_name
```
## Kompatibilität mit Bitwarden🧩
Vaultwarden ist vollständig kompatibel mit den offiziellen Bitwarden-Clients und -Browsererweiterungen. Das bedeutet, Du kannst weiterhin die Bitwarden-App auf Deinem Smartphone, die Browsererweiterungen und das Web-Interface verwenden, ohne Änderungen vornehmen zu müssen. Alle Funktionen wie das automatische Ausfüllen von Passwörtern, das Speichern neuer Logins und das Synchronisieren zwischen Geräten funktionieren nahtlos.
Für iOS kannst du die App von Bitwarden nutzen:
[Bitwarden Passwortmanagerbitwarden bietet Ihnen die einfachste und sicherste Möglichkeit, alle Ihre Benutzernamen und Passwörter zu speichern und zwischen Ihren Geräten zu synchronisieren. Passwortdiebstahl ist ein echtes Problem. Die von Ihnen verwendeten Webseiten und Apps werden jeden Tag angegriffen und oftmals werden…](https://apps.apple.com/de/app/bitwarden-passwortmanager/id1137397744)
Oder als Extension für Chrome bzw. Edge:
[Bitwarden Password ManagerAt home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information](https://chromewebstore.google.com/detail/bitwarden-passwortmanager/nngceckbapebfimnlniiiahkandclblb)
[Bitwarden Passwortmanager - Microsoft Edge AddonsNo image availableMake Microsoft Edge your own with extensions that help you personalize the browser and be more productive.](https://microsoftedge.microsoft.com/addons/detail/bitwarden-kostenloser-p/jbkfoedolllekgbhcbcoahefnbanhhlh?hl=de)
Oder für Android aus dem Play-Store:
[Bitwarden Passwortmanager – Apps bei Google PlayBitwarden - ein Zugangsdaten- und Passwortmanager, der dich beim surfen schützt.](https://play.google.com/store/apps/details?id=com.x8bit.bitwarden&hl=de)
## Vaultwarden vs. Bitwarden: Ein Vergleich 🆚
### Kosten
Bitwarden bietet sowohl kostenlose als auch kostenpflichtige Pläne an. Die kostenlose Version bietet grundlegende Funktionen, während die Premium-Version zusätzliche Features wie 2FA und mehr Speicherplatz bietet. Vaultwarden hingegen ist komplett kostenlos, da Du Deinen eigenen Server hostest.
### Ressourcenverbrauch
Vaultwarden ist erheblich ressourcenschonender als der offizielle Bitwarden-Server. Es ist speziell dafür entwickelt, mit minimalem Speicher- und CPU-Verbrauch zu laufen, was es ideal für kleinere Geräte und Server macht.
### Sicherheit
Beide Systeme bieten eine hohe Sicherheit, da sie die gleiche grundlegende Architektur verwenden. Der Hauptunterschied liegt in der Kontrolle: Mit Vaultwarden hast Du die volle Kontrolle über Deine Daten und deren Speicherung, während Du bei Bitwarden auf deren Infrastruktur angewiesen bist.
### Anpassungsfähigkeit
Vaultwarden bietet mehr Anpassungsmöglichkeiten, da Du den Quellcode nach Belieben ändern und erweitern kannst. Dies ist besonders nützlich für fortgeschrittene Benutzer, die spezielle Anforderungen haben.
## Fazit 🎯
Vaultwarden ist eine leistungsstarke und flexible Alternative zu Bitwarden, die sich besonders für Benutzer eignet, die ihre Daten selbst verwalten möchten. Es bietet alle wesentlichen Funktionen des offiziellen Bitwarden-Dienstes, benötigt dabei aber deutlich weniger Ressourcen und ist vollständig kostenlos. Die Kompatibilität mit den Bitwarden-Clients und -Browsererweiterungen macht den Umstieg einfach und nahtlos.
Wenn Du auf der Suche nach einem sicheren, kosteneffizienten und anpassbaren Passwortmanager bist, der auf einer Vielzahl von Plattformen läuft, dann ist Vaultwarden definitiv einen Blick wert. Starte noch heute und sichere Deine Passwörter mit Vaultwarden!
---
If you like my posts, it would be nice if you follow my [Blog](https://blog.disane.dev) for more tech stuff. | disane |
1,918,856 | Guide to $120k Linux Job (Free course link is included) | Don't forget to check the links at the end for the course article. Are you ready to dive deep into... | 0 | 2024-07-10T18:02:39 | https://dev.to/hacker_haii/guide-to-120k-linux-job-free-course-link-in-included-5bg3 | linux, devops, bash, tutorial |
_**Don't forget to check the links at the end for the course article.**_
Are you ready to dive deep into the world of shell scripting and unlock a floodgate of Linux job opportunities? If you're serious about boosting your DevOps career, you can't afford to miss this!
## **Why Shell Scripting?**
Shell scripting is the backbone of any Linux system, and mastering it can open doors to some of the most sought-after roles in the industry. From automating repetitive tasks to managing complex systems, shell scripting is an essential skill for any DevOps professional. Whether you're a beginner or looking to refine your advanced techniques, our masterclass has got you covered.
## What You'll Learn
🔹 **Beginner-Friendly Content:** Start from the basics and build a solid foundation in shell scripting.
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🔹 **Job-Ready Skills:** Learn exactly what employers are looking for and how to apply these skills in the workplace.
🔹 **Hands-On Projects:** Get practical experience with projects designed to enhance your learning.
## **The FOMO is Real!**
Did you know that Linux job postings have increased by over 50% in the last year alone? Companies are desperately seeking skilled professionals who can hit the ground running. By mastering shell scripting, you're not just learning a skill – you're setting yourself up for a future-proof career.
**
## Join the Revolution 🌐
**
Imagine being the go-to expert in your team, the one who can automate tasks effortlessly and improve productivity. Our masterclass is your stepping stone to becoming that indispensable asset. Don’t let this opportunity slip through your fingers!
**
## Ready to Transform Your Career?
**
Click the link below to join our Shell Scripting Masterclass and take the first step towards an exciting and lucrative career in DevOps. Your future self will thank you!
**_[👉 Join the Shell Scripting Masterclass Now!](https://medium.com/devops-dev/shell-scripting-masterclass-world-beyond-ls-and-mkdir-8ae04f61002f)_**
**
## If not now, then When? 🚀
**
The world of DevOps is constantly evolving, and staying ahead means continuously upgrading your skills. This masterclass is designed to be your ultimate guide to shell scripting, packed with all the knowledge and hands-on experience you need to thrive in the competitive job market.
Click Here >> https://medium.com/devops-dev/shell-scripting-masterclass-world-beyond-ls-and-mkdir-8ae04f61002f | hacker_haii |
1,918,857 | VaultWarden: Your local password manager | Vaultwarden offers a lightweight, resource-efficient and free alternative to Bitwarden. Discover the... | 0 | 2024-07-10T18:03:22 | https://blog.disane.dev/en/vaultwarden-your-local-password-manager/ | passwordmanager, security, docker, homelab | Vaultwarden offers a lightweight, resource-efficient and free alternative to Bitwarden. Discover the advantages and learn how to install Vaultwarden! 🛠️
---
If you're looking for a secure and cost-effective password manager, then Vaultwarden could be just the thing for you. Vaultwarden, formerly known as Bitwarden\_RS, is a lightweight and efficient implementation of the popular password manager Bitwarden that specifically aims to be light on resources and run on a variety of platforms. In this article, we will highlight the benefits of Vaultwarden, explain how to install Vaultwarden and discuss its compatibility with Bitwarden extensions.
## What is Vaultwarden? 🤔
Vaultwarden is an implementation of the Bitwarden server written in Rust. It offers all the essential functions of the official Bitwarden service, but without the associated overhead. Vaultwarden can run on various platforms, including small ARM devices such as the Raspberry Pi, while requiring minimal resources. This makes it an ideal choice for home networks or small businesses that want to take their password management into their own hands.
[GitHub - dani-garcia/vaultwarden: Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden\_rsUnofficial Bitwarden compatible server written in Rust, formerly known as bitwarden\_rs - dani-garcia/vaultwarden](https://github.com/dani-garcia/vaultwarden)
## Advantages of Vaultwarden 🌟
### Free and open-source 💸
Vaultwarden is completely free and the source code is publicly available. This means you can customize it as you wish and ensure that there are no hidden features or backdoors. The active community continuously contributes to improvements and provides support.
### Low system requirements 🖥️
Unlike other password managers, Vaultwarden requires very few resources. It even runs smoothly on a Raspberry Pi or an old PC, which makes it particularly attractive for home networks and small businesses.
### Full control over your data 🔒
With Vaultwarden, you host your own password server. This means you have full control over your data and don't have to entrust it to a third-party provider. This significantly increases security and data protection.
### Compatibility with Bitwarden clients and extensions 🧩
Vaultwarden is fully compatible with the official Bitwarden clients and browser extensions. This means you can use the same apps and extensions as Bitwarden, making the transition very easy.
### Easy to install and manage 🛠️
Vaultwarden is easy to install and manage, even if you're not an IT expert. There are numerous guides and an active community to help you with any questions.
## Installing Vaultwarden 🚀
Installing Vaultwarden is straightforward and can be done on different platforms. Here is a step-by-step guide for installing on a Linux server.
### Prerequisites 📋
* A Linux server (Ubuntu, Debian or CentOS)
* Docker installed
* A working web server (e.g. Nginx or Apache).e.g. Nginx or Apache)
### Install Docker 🐋
If Docker is not yet installed, you can install it with the following commands:
```bash
sudo apt update
sudo apt install docker.io -y
sudo systemctl start docker
sudo systemctl enable docker
```
### Install docker-compose 🛠️
Docker-Compose is a tool that allows you to define and run multi-container Docker applications. Install it with:
```bash
sudo apt install docker-compose -y
```
### Download and launch Vaultwarden 📦
Create a new directory for Vaultwarden and create a `docker-compose.yml` file:
```bash
mkdir vaultwarden
cd vaultwarden
nano docker-compose.yml
```
Insert the following content into the `docker-compose.yml` file:
```yaml
version: '3'
services:
vaultwarden:
image: vaultwarden/server:latest
container_name: vaultwarden
environment:
- ADMIN_TOKEN=your_admin_token # Replace 'your_admin_token' with a secure token
volumes:
- ./vw-data:/data
ports:
- 80:80
restart: unless-stopped
```
Save the file and close the editor. Then start Vaultwarden with:
```bash
docker-compose up -d
```
### Setting up the web server 🌐
To make access to Vaultwarden more secure, you can set up a reverse proxy with Nginx or Apache and use HTTPS. Here is an example of the configuration with Nginx:
```nginx
server {
listen 80;
server_name your_domain_name; # Replace 'your_domain_name' with your domain
location / {
proxy_pass http://localhost:80;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
```
Save the configuration file and activate it:
```bash
sudo ln -s /etc/nginx/sites-available/vaultwarden /etc/nginx/sites-enabled/
sudo systemctl restart nginx
```
### Set up HTTPS with Let's Encrypt 🔒
To use HTTPS, you can use Let's Encrypt and Certbot. Install Certbot with:
```bash
sudo apt install certbot python3-certbot-nginx -y
```
Request a certificate and configure Nginx automatically:
```bash
sudo certbot --nginx -d your_domain_name
```
## Compatibility with Bitwarden🧩
Vaultwarden is fully compatible with the official Bitwarden clients and browser extensions. This means you can continue to use the Bitwarden app on your smartphone, the browser extensions and the web interface without having to make any changes. All features such as autofilling passwords, saving new logins and synchronizing between devices work seamlessly.
For iOS, you can use the Bitwarden app:
[Bitwarden password managerbitwarden offers you the easiest and most secure way to store all your usernames and passwords and synchronize them between your devices. Password theft is a real problem. The websites and apps you use are attacked every day and often...](https://apps.apple.com/en/app/bitwarden-passwordmanager/id1137397744)
Or as an extension for Chrome or Edge:
[Bitwarden Password ManagerAt home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information](https://chromewebstore.google.com/detail/bitwarden-passwordmanager/nngceckbapebfimnlniiiahkandclblb)
[Bitwarden Password Manager - Microsoft Edge AddonsNo image availableMake Microsoft Edge your own with extensions that help you personalize the browser and be more productive.](https://microsoftedge.microsoft.com/addons/detail/bitwarden-free-p/jbkfoedolllekgbhcbcoahefnbanhhlh?hl=en)
Or for Android from the Play Store:
[Bitwarden password manager - Apps on Google PlayBitwarden - a login and password manager that protects you while surfing.](https://play.google.com/store/apps/details?id=com.x8bit.bitwarden&hl=en)
## Vaultwarden vs. Bitwarden: A comparison 🆚
### Costs
Bitwarden offers both free and paid plans. The free version offers basic features, while the premium version offers additional features such as 2FA and more storage space. Vaultwarden, on the other hand, is completely free as you host your own server.
### Resource consumption
Vaultwarden is considerably more resource-efficient than the official Bitwarden server. It is specifically designed to run with minimal memory and CPU consumption, making it ideal for smaller devices and servers.
### Security
Both systems offer a high level of security as they use the same basic architecture. The main difference lies in control: with Vaultwarden you have full control over your data and its storage, while with Bitwarden you rely on their infrastructure.
### Customizability
Vaultwarden offers more customization options, as you can change and extend the source code as you wish. This is especially useful for advanced users who have specific requirements.
## Conclusion 🎯
Vaultwarden is a powerful and flexible alternative to Bitwarden that is particularly suitable for users who want to manage their data themselves. It offers all the essential functions of the official Bitwarden service, but requires significantly fewer resources and is completely free. Compatibility with Bitwarden clients and browser extensions makes the transition easy and seamless.
If you're looking for a secure, cost-effective and customizable password manager that runs on a variety of platforms, then Vaultwarden is definitely worth a look. Get started today and secure your passwords with Vaultwarden!
---
If you like my posts, it would be nice if you follow my [Blog](https://blog.disane.dev) for more tech stuff. | disane |
1,918,859 | பைதானில் Data Types | *Data Types: * Numeric int float (decimal numbers) complex numbers Text( strings= collection of... | 0 | 2024-07-10T18:05:12 | https://dev.to/rjagathe/paitaannnil-data-types-30pi | **Data Types:
**
1. Numeric
int
float (decimal numbers)
complex numbers
2. Text( strings= collection of characters,no.,space,etc.,)
denoted within quotes.
3. Boolean
4. None
**Variables and Constants:**
Variable = Containers to hold the values
naming variables ( @,!, etc not to be used)
multiple assignments
Tuple
References
Constants (Statice variable)
Formats of Constants(All Caps)
Solution for Exercises:
Create a variable named name and assign your name to it. Then print the value of the variable.
[24]
0s
name= "Ravi"
print(name)
Ravi
Create a variable age and assign your age to it. Later, reassign the variable with a new value and print the new value.
[25]
0s
Age=62
Age=32
print(Age)
32
Assign the values 5, 10, and 15 to three variables a, b, and c in a single line.Print their values.
[26]
0s
a,b,c=5,10,15
print(a,b,c)
5 10 15
Swap the values of two variables x and y without using a third variable. Print their values before and after swapping.
[28]
0s
x,y=5,10
print(x,y)
x,y,=y,x
print(x,y)
5 10
10 5
[29]
0s
x,y=5,10
print(x,y)
x=x+y
y=x-y
x=x-y
print(x,y)
5 10
10 5
[30]
0s
PI=22/7
print(PI)
3.142857142857143
Constant is a static variable.
[31]
0s
PI=22/7
r=10
Area=PI*r*r
print(Area)
314.2857142857143
Define constants for the length and width of a rectangle.
[33]
0s
LEN=4
BRTH=5
A=LEN*BRTH
print(A)
20
Define a constant for π (pi) and a variable for the radius. Calculate and print the circumference of the circle.
[36]
0s
PI=22/7
r=10
C=PI*r+r
print(C)
41.42857142857143
[37]
0s
PI=22/7
r=10
C=PI*(r+r)
print(C)
62.857142857142854
| rjagathe | |
1,918,860 | Platform Engineering Tools: An Overview and Comparison | In the rapidly evolving world of software development, platform engineering has emerged as a crucial... | 0 | 2024-07-10T18:06:56 | https://dev.to/the_real_zan/platform-engineering-tools-an-overview-and-comparison-527d | devops, cloud, webdev, programming | In the rapidly evolving world of software development, platform engineering has emerged as a crucial discipline aimed at optimizing the software development lifecycle (SDLC) and enhancing the developer experience. By constructing internal developer platforms, platform engineering teams strive to streamline processes, reduce cognitive load, and empower developers to focus on their core tasks. This article delves into the fundamental concepts and tools associated with platform engineering, exploring how they contribute to improved efficiency, productivity, and innovation within software development organizations.
## The Landscape of Platform Engineering Tools
As organizations seek to optimize their software development processes, the landscape of platform engineering tools has grown increasingly diverse and complex. With a plethora of solutions emerging each month, companies face the challenge of selecting and integrating the most suitable tools to meet their developers' needs. Platform engineering aims to navigate this complexity by providing layered abstractions tailored to organizational requirements, enabling developers to focus on building and delivering software without being overwhelmed by the intricacies of underlying core services.
The platform engineering community has curated a comprehensive list of tools, categorizing them based on their specific functions. These categories encompass various aspects of the software development lifecycle, from integration and delivery to observability, security, and resource management.
### Integration and Delivery
Integration and delivery tools play a vital role in ensuring seamless software integration and continuous delivery across different environments. This category includes tools for CI/CD management, artifact management, infrastructure automation, and platform orchestration. By streamlining these processes, organizations can achieve faster and more reliable software releases.
### Observability
Observability tools, such as monitoring, logging, tracing, and analytics solutions, provide valuable insights into application performance and system health. These tools enable teams to quickly identify and resolve issues, ensuring the stability and reliability of their software applications.
### Security and Secrets Management
Protecting sensitive data and managing access control are critical aspects of platform engineering. Tools in the security and secrets management category offer robust security protocols and secrets management systems to safeguard an organization's valuable information assets.
### Cloud Resource Management
As organizations increasingly adopt cloud-based infrastructure, effective management of cloud resources becomes paramount. Tools in this category handle data, compute, networking, and hosted services from cloud providers, enabling organizations to optimize resource utilization and achieve scalability.
### Developer Control Plane
The developer control plane encompasses a wide range of tools that enhance the management and visibility of development processes and resources. This includes source control systems, infrastructure as code solutions, developer portals, and software catalogs. By leveraging these tools, organizations can improve collaboration, streamline workflows, and facilitate better decision-making.
Navigating the platform engineering tools landscape requires a deep understanding of the specific needs and goals of an organization's development teams. By carefully selecting and integrating the right combination of tools, platform engineering teams can create a cohesive and efficient environment that empowers developers to deliver high-quality software at a faster pace.
## Leveraging Internal Developer Platforms for Efficiency
One of the key strategies in platform engineering is the creation of internal developer platforms (IDPs) that integrate tools from the developer control plane with the delivery pipeline. By doing so, organizations can significantly reduce the cognitive load on developers and enhance their self-service capabilities, leading to improved efficiency and productivity.
### Streamlining Application Lifecycle Management
An internal developer platform serves as a comprehensive solution for managing the entire application lifecycle. It empowers developers to independently develop, deploy, and maintain applications without heavily relying on IT and DevOps teams. By providing a wide range of tools and services, IDPs simplify the complexities of cloud infrastructure and offer developers a user-friendly interface with greater control and flexibility compared to traditional platform-as-a-service (PaaS) models.
### Accelerating Software Development
The adoption of IDPs has a profound impact on the speed and efficiency of software development. With features like containerization, automatic scaling, and continuous integration and deployment (CI/CD), developers can focus primarily on writing code rather than worrying about infrastructure management. This streamlined approach enables faster product iterations and reduces time to market, giving organizations a competitive edge in today's fast-paced digital landscape.
### Real-World Examples
Leading technology companies, such as Salesforce and Microsoft Azure, have successfully implemented robust internal developer platforms to optimize their software development processes. These platforms offer a seamless environment for setting up development environments, fostering collaboration among teams, and simplifying application deployment. By leveraging the power of IDPs, these organizations have achieved remarkable efficiency gains and accelerated their development cycles.
### Popular Internal Developer Platforms
Several notable internal developer platforms have emerged to cater to the diverse needs of organizations. Red Hat's OpenShift, for example, extends Kubernetes with a developer-centric approach, integrating CI/CD, source code management, and automated scaling. Qovery, on the other hand, simplifies the deployment process for Kubernetes by allowing developers to declare their project's structure and dependencies, making it an ideal choice for startups focusing on development rather than infrastructure management. Cloud66 offers a comprehensive suite of tools for container and server management, supporting both traditional applications and containerized workloads, facilitating a smooth transition to modern architectures.
By embracing internal developer platforms, organizations can unlock the true potential of their development teams, enabling them to deliver high-quality software at an accelerated pace. These platforms provide a unified and streamlined environment that abstracts away the complexities of infrastructure management, allowing developers to concentrate on what they do best: crafting innovative solutions that drive business value.
## Enhancing Developer Experience with Internal Developer Portals
In the realm of platform engineering, internal developer portals have emerged as a crucial component in enhancing the developer experience and fostering a collaborative environment. These portals serve as a centralized hub, providing developers with easy access to resources, documentation, and APIs necessary for efficient software development.
### Streamlining Information Access
One of the primary benefits of internal developer portals is their ability to streamline information access. By consolidating essential resources such as coding standards, architectural guidelines, API flow diagrams, and best practices, these portals ensure that developers have a single point of reference. This centralized approach promotes consistency and adherence to high-quality standards across projects, reducing the time and effort spent searching for relevant information.
### Facilitating Collaboration and Knowledge Sharing
Internal developer portals play a vital role in fostering collaboration and knowledge sharing among development teams. These portals often include features like forums, chat functionality, and code sharing capabilities, enabling developers to interact, seek assistance, and learn from one another. By promoting a culture of collaboration, organizations can leverage the collective intelligence of their development teams, leading to faster problem-solving and innovation.
### Integration with Development Tools and Services
To further optimize the developer workflow, internal developer portals seamlessly integrate with various development tools and services. This integration encompasses version control systems, issue tracking platforms, and project management tools, providing developers with a unified interface to manage their work. By centralizing access to these tools, developer portals streamline the development process and reduce context switching, allowing developers to focus on their core tasks.
### Real-World Examples
Leading technology companies, such as Google and Amazon, have successfully implemented internal developer portals to empower their development teams. These portals offer a wealth of resources, including API documentation, code samples, and interactive learning materials, enabling developers to quickly grasp new concepts and apply them effectively. By investing in robust developer portals, these organizations foster a culture of continuous learning and innovation, staying ahead of the curve in the rapidly evolving technology landscape.
### Backstage: A Pioneer in Developer Portals
Backstage, an open-source developer portal created by Spotify, has gained significant traction in the platform engineering community. Designed to support Spotify's agile development model, which emphasizes small, autonomous teams, Backstage provides a unified software catalog, standardized templates for creating new services, and integrated documentation capabilities. Its extensible architecture allows organizations to customize and enhance the portal's functionality to suit their specific needs, making it a powerful tool for streamlining developer workflows and promoting standardization.
By embracing internal developer portals, organizations can unlock the full potential of their development teams, fostering a collaborative and efficient environment that drives innovation and accelerates software delivery. These portals serve as a catalyst for knowledge sharing, continuous learning, and streamlined access to critical resources, ultimately enhancing the overall developer experience.
## Conclusion
Platform engineering has emerged as a transformative approach to optimizing software development processes and enhancing the developer experience. By leveraging a combination of internal developer platforms, portals, and ephemeral environments, organizations can empower their development teams to deliver high-quality software at an accelerated pace.
The landscape of platform engineering tools offers a wide array of solutions that cater to various aspects of the software development lifecycle. By carefully selecting and integrating the right tools, platform engineering teams can create a cohesive and efficient environment that abstracts away the complexities of infrastructure management, allowing developers to focus on their core competencies.
Internal developer platforms serve as a comprehensive solution for streamlining application lifecycle management, enabling developers to independently develop, deploy, and maintain applications. These platforms accelerate software development by providing features like containerization, automatic scaling, and CI/CD, reducing the time to market and fostering innovation.
Internal developer portals, on the other hand, enhance the developer experience by providing a centralized hub for accessing resources, documentation, and APIs. These portals facilitate collaboration, knowledge sharing, and continuous learning, ultimately driving a culture of innovation and excellence within development teams.
As organizations continue to navigate the complexities of modern software development, platform engineering will play an increasingly crucial role in achieving efficiency, agility, and competitiveness. By embracing the power of platform engineering tools and methodologies, organizations can unlock the true potential of their development teams and deliver cutting-edge software solutions that meet the ever-evolving needs of their customers.
Read more at https://www.withcoherence.com/post/platform-engineering-tools. | the_real_zan |
1,918,861 | 1598. Crawler Log Folder | 1598. Crawler Log Folder Easy The Leetcode file system keeps a log each time some user performs a... | 27,523 | 2024-07-10T18:10:26 | https://dev.to/mdarifulhaque/1598-crawler-log-folder-2l07 | php, leetcode, algorithms, programming | 1598\. Crawler Log Folder
Easy
The Leetcode file system keeps a log each time some user performs a _change folder_ operation.
The operations are described below:
- `"../"` : Move to the parent folder of the current folder. (If you are already in the main folder, **remain in the same folder**).
- `"./"` : Remain in the same folder.
- `"x/"` : Move to the child folder named `x` (This folder is **guaranteed to always exist**).
You are given a list of strings `logs` where `logs[i]` is the operation performed by the user at the <code>i<sup>th</sup></code> step.
The file system starts in the main folder, then the operations in `logs` are performed.
Return _the minimum number of operations needed to go back to the main folder after the change folder operations_.
**Example 1:**
- **Input:** logs = ["d1/","d2/","../","d21/","./"]
- **Output:** 2
- **Explanation:** Use this change folder operation "../" 2 times and go back to the main folder.
**Example 2:**
- **Input:** logs = ["d1/","d2/","./","d3/","../","d31/"]
- **Output:** 3
**Example 3:**
- **Input:** logs = ["d1/","../","../","../"]
- **Output:** 0
**Constraints:**
- <code>1 <= logs.length <= 10<sup>3</sup></code>
- `2 <= logs[i].length <= 10`
- `logs[i]` contains lowercase English letters, digits, `'.'`, and `'/'`.
- `logs[i]` follows the format described in the statement.
- Folder names consist of lowercase English letters and digits.
**Solution:**
```
class Solution {
/**
* @param String[] $logs
* @return Integer
*/
function minOperations($logs) {
$depth = 0;
foreach ($logs as $log) {
if ($log == "../") {
if ($depth > 0) {
$depth--;
}
} elseif ($log != "./") {
$depth++;
}
}
return $depth;
}
}
```
**Contact Links**
If you found this series helpful, please consider giving the **[repository](https://github.com/mah-shamim/leet-code-in-php)** a star on GitHub or sharing the post on your favorite social networks 😍. Your support would mean a lot to me!
If you want more helpful content like this, feel free to follow me:
- **[LinkedIn](https://www.linkedin.com/in/arifulhaque/)**
- **[GitHub](https://github.com/mah-shamim)**
| mdarifulhaque |
1,918,862 | How to Learn Blockchain Development: A Step-by-Step Guide | Hello there, and welcome to Dapp Mentors! I'm Darlington Gospel, and today, I want to share some... | 0 | 2024-07-10T18:11:05 | https://dev.to/daltonic/how-to-learn-blockchain-development-a-step-by-step-guide-30ek | webdev, blockchain, web3, programming | Hello there, and welcome to Dapp Mentors! I'm [Darlington Gospel](https://www.linkedin.com/in/darlington-gospel-aa626b125/), and today, I want to share some insights on how to effectively learn blockchain development. Over the years, I've worked on numerous blockchain and smart contract projects, including [**a recent series on Solana**](https://www.youtube.com/playlist?list=PLUDcVqFK2t-BvxuYVyOY0ifo1sMlS99w-). Now, let's dive into the essential steps for mastering blockchain development.
You can watch this entire breakdown on this YouTube video below, or else you can keep reading on.
{% embed https://www.youtube.com/watch?v=8pbVzcrnrxM %}
## Introduction
Blockchain development is not for the faint-hearted. It requires time, dedication, and a strategic approach. In this guide, I'll outline six critical steps to help you shorten your learning curve and achieve success in this field.
**Step 1: Be Project-Oriented**
From the outset, have a clear vision of what you want to build. Whether it's an NFT minting project, a decentralized application, or another blockchain project, your learning should be tied to achieving that specific goal. This focused approach will save you time and effort, preventing you from getting lost in irrelevant details.
**Key Points**
- **Define Your Goal:** Determine what you want to build. It could be an NFT marketplace, a decentralized voting dApp, or any other blockchain-based solution.
- **Stay Focused:** Concentrate on learning the skills and tools necessary to complete your specific project.
- **Avoid Distractions:** Don't get sidetracked by unrelated blockchain technologies or programming languages that are not relevant to your project.
**Example**
If your goal is to create a crowdfunding platform on the blockchain, focus on learning Solidity for crowd-funding smart contract development, don’t go and learn Solidity programming language A to Z, if you do so, it will ensure you spend too much time in the wilderness.
**Step 2: Break Your Project into Smaller Components**
Breaking your project into smaller, manageable components reduces complexity and makes the learning process less overwhelming. Just like in React development, where you have distinct components like headers and cards, in blockchain development, you need to break down your project into clear, actionable parts.
**Key Points**
- **Identify Components:** Determine the major parts of your project, such as the front-end interface, back-end logic, smart contracts, and integrations.
- **Divide and Conquer:** Work on each component individually before integrating them into the final project.
- **Simplify:** Simplifying complex tasks into smaller chunks makes the learning process more manageable and less daunting.
**Example**
For the crowdfunding platform, break down the project into:
- Smart contract development for handling fund collection and distribution.
- Front-end development for user interaction.
- Back-end services for data management and user authentication.
- Integration of front-end with smart contracts.
**Step 3: Gather Information Strategically**
Gathering information is crucial. Focus on learning what's necessary to achieve each component of your project. Avoid getting stuck in ["tutorial hell,"](https://www.reddit.com/r/learnprogramming/comments/qrlx5m/what_exactly_is_tutorial_hell/) where you endlessly watch videos or read articles without applying the knowledge. Research specific solutions and apply them directly to your project.
**Key Points**
- **Focus on Relevance:** Search for information specific to the components of your project.
- **Use Multiple Sources:** Combine videos, articles, and tutorials to get a well-rounded understanding.
- **Stay Updated:** Blockchain technology evolves rapidly, so ensure you’re learning from up-to-date sources.
**Example**
When learning Solidity, look for resources specifically on writing smart contracts for your current project, such as our crowdfunding project. Platforms like Udemy, Coursera, and developer communities like GitHub and Stack Overflow can be invaluable.
**Step 4: Be Research-Driven**
You'll encounter problems as you progress, and solving them requires extensive research. Be thorough and resourceful in your investigations. Relying solely on others for help can hinder your growth. Embrace the challenge and become adept at finding solutions independently.
**Key Points**
- **Investigate Issues:** When faced with a problem, dive deep into research to find a solution.
- **Explore Widely:** Look at different sources and perspectives to get a comprehensive understanding.
- **Learn Independently:** Develop the ability to solve problems without always relying on others.
**Example**
If you encounter an issue with a smart contract function, research similar problems on forums, and ask an A. I assistant, read documentation, and experiment with different solutions in a test environment.
**Step 5: Repeat the Process for All Components**
Once you solve one component, move on to the next, repeating the process of gathering information, researching, and applying your knowledge. This iterative approach ensures that you comprehensively understand each part of your project.
**Key Points**
- **Iterate:** Work through each component using the same methodical approach.
- **Refine:** Continuously improve and refine each part as you progress.
- **Integrate:** Once all components are developed, integrate them and test the full system.
**Example**
After developing and testing the smart contract for the crowdfunding platform, move on to the front-end, then the back-end, ensuring each component works perfectly before integrating them.
**Step 6: Teach the Project**
Teaching what you've learned solidifies your knowledge and enhances your mastery. Create tutorials, write articles, or produce videos explaining your project. Teaching reinforces your understanding and builds your visibility and credibility in the field.
**Key Points**
- **Reinforce Knowledge:** Teaching helps solidify what you’ve learned.
- **Gain Visibility:** Sharing your knowledge increases your visibility in the blockchain space.
- **Build Credibility:** Demonstrating your expertise through teaching can quickly lead to new opportunities such as landing a new job.
**Example**
Create a technical YouTube video or write a technical blog tutorial demonstrating how to build a project, such as our example crowdfunding platform. Explain the challenges you faced and how you overcame them.
[**Check out our new Solana-based course on YouTube to learn how to Build a Token Sales Dapp with Solana, NextJs, Typescript, Tailwind CSS, Redux, and Phantom.**](https://youtu.be/uaYjhKs9aXQ)
{% embed https://www.youtube.com/watch?v=uaYjhKs9aXQ %}
## Conclusion
Learning blockchain development requires a strategic, project-oriented approach. By breaking your project into manageable components, gathering targeted information, and embracing research, you can master the necessary skills efficiently. Teaching your knowledge further reinforces your expertise and opens up new opportunities.
Stay tuned for more tutorials and insights on blockchain development. Until next time, keep learning and building!
**About the Author**
Darlington Gospel is a seasoned blockchain developer and educator with over 8 years of experience. He specializes in blockchain development, fullstack software development, technical instruction, and content creation.
We run a [**YouTube channel called Dapp Mentors**](https://www.youtube.com/@dappmentors?sub_confirmation=1) where we share tutorials and tips on web3 development, and we regularly post articles online about the latest trends in the blockchain space.
**About Dapp Mentors**
Dapp Mentors is a community dedicated to helping developers transition into web3 development. Our team includes experienced blockchain developers and educators passionate about sharing their knowledge.
**For more information, contact us at:**
[LinkedIn](https://www.linkedin.com/in/darlington-gospel-aa626b125/)
[Discord](https://discord.gg/PgFDUVT6n9)
[X-twitter](https://twitter.com/iDaltonic)
[YouTube](https://youtube.com/@dappmentors)
[Website](https://dappmentors.org/) | daltonic |
1,918,863 | Join Us For The First Community Smart Contract Challenge With $50,000 In Prizes! | We are thrilled to collaborate with the Stellar Development Foundation to introduce the community to... | 0 | 2024-07-10T18:33:22 | https://dev.to/devteam/join-us-for-the-first-community-smart-contract-challenge-with-50000-in-prizes-41gl | devchallenge, stellarchallenge, web3, blockchain | We are thrilled to collaborate with the [Stellar Development Foundation](https://stellar.org/?utm_campaign=buildbetter) to introduce the community to blockchain technology.
Running through **August 18**, the [Build Better on Stellar: Smart Contract Challenge](https://dev.to/challenges/stellar) provides an opportunity for web devs to learn all about decentralization, wallets, consensus, interoperability, and all the other lingo you may have heard floating around but never quite understood. This is your signal to dive in and unlock those a-ha moments!
We’ll share all the resources you need to learn the fundamentals, and you’ll come out of the challenge knowing how to build with [Soroban](https://stellar.org/soroban?utm_campaign=buildbetter), Stellar’s smart contract platform designed for scale and sensibility.
We have **two prompts** for this challenge, but six ways to win. Did we mention the $50,000 prize pool? And a free trip to London to attend the [Meridian Conference](https://meridian.stellar.org/?utm_campaign=buildbetter)?! Our biggest offering to-date, thanks to the generous Stellar Development Foundation.
Ready to get learning and building? Read on to learn about the prompts and how to get started.
## Our Prompts
{% card %}
### Build a dApp
Build a decentralized app (dApp) that leverages one or more Stellar smart contracts. The main requirement is that users should be able to interact with the application. Other than that, you are free to build whatever you want!
**Prize Categories**
In addition to our overall Build a dApp winner, we have two additional prize categories you could win for this prompt:
- Glorious Game: Awarded to a top game dApp
- Super Sustainable: Awarded to a top dApp that focuses on real-world positive impact
Here is the submission template for anyone that wants to jump right in, but please review all challenge and prompt-specific rules on the [official challenge page](https://dev.to/challenges/stellar) before submitting.
{% cta https://dev.to/new?prefill=---%0Atitle%3A%20%0Apublished%3A%20%0Atags%3A%20devchallenge%2C%20stellarchallenge%2C%20blockchain%2C%20web3%0A---%0A%0A*This%20is%20a%20submission%20for%20the%20%5BBuild%20Better%20on%20Stellar%3A%20Smart%20Contract%20Challenge%20%5D(https%3A%2F%2Fdev.to%2Fchallenges%2Fstellar)%3A%20Build%20a%20dApp*%0A%0A%23%23%20What%20I%20Built%0A%3C!--%20Share%20an%20overview%20about%20your%20project%20and%20what%20it%20does.%20--%3E%0A%0A%23%23%20Demo%0A%3C!--%20If%20submitting%20a%20browser-based%20dApp%2C%20please%20share%20a%20public%20URL%20for%20us%20to%20demo.%20--%3E%0A%3C!--%20If%20submitting%20a%20mobile%20dApp%2C%20please%20share%20a%20video%20demo.%20--%3E%0A%0A%23%23%20My%20Code%0A%3C!--%20Show%20us%20the%20code!%20Share%20a%20public%20link%20to%20your%20repo%20and%20be%20sure%20to%20include%20a%20README%20file%20with%20installation%20instructions.%20We%20also%20encourage%20you%20to%20add%20a%20license%20for%20your%20code.%20%20--%3E%20%0A%0A%23%23%20Journey%0A%3C!--%20Tell%20us%20about%20your%20implementation%20and%20smart%20contract%20design%2C%20the%20motivation%20behind%20your%20project%2C%20what%20you%20learned%2C%20your%20experience%20with%20the%20ecosystem%2C%20anything%20you%20are%20particularly%20proud%20of%2C%20what%20you%20hope%20to%20do%20next%2C%20etc.%20--%3E%0A%0A**Additional%20Prize%20Categories%3A%20Glorious%20Game%20and%2For%20Super%20Sustainable**%0A%3C!--%20Let%20us%20know%20if%20you%E2%80%99d%20like%20your%20submission%20considered%20for%20the%20glorious%20game%20and%2For%20super%20sustainable%20prize%20categories.%20If%20not%2C%20please%20remove%20this%20section.%20%20--%3E%0A%0A%3C!--%20Team%20Submissions%3A%20Please%20pick%20one%20member%20to%20publish%20the%20submission%20and%20credit%20teammates%20by%20listing%20their%20DEV%20usernames%20directly%20in%20the%20body%20of%20the%20post.%20--%3E%0A%0A%3C!--%20Don%27t%20forget%20to%20add%20a%20cover%20image%20(if%20you%20want).%20%20--%3E%0A%0A%3C!--%20IMPORTANT%20LAST%20STEP%3A%20Use%20the%20email%20address%20you%20have%20associated%20with%20your%20DEV%20account%20and%20fill%20out%20this%20form%20on%20the%20Stellar%20website%3A%20https%3A%2F%2Fstellar.org%2Fcommunity%2Fevents%2Fbuild-better-smart-contract-challenge%20--%3E%0A%0A%3C!--%20Thanks%20for%20participating!%20%20--%3E%0A %}
Submission Template for Build A dApp
{% endcta %}
{% endcard %}
{% card %}
### Create a Tutorial
Create a tutorial that explains some part of the Stellar developer experience. Your submission does not need to be long and involved, or super polished, but it should be coherent and easy to follow.
**Prize Categories**
In addition to our overall Create a Tutorial winner, we have two additional prize categories you could win for this prompt:
- Wonderfully Written: Awarded to a top written tutorial
- Vivid Video: Awarded to a top video tutorial
Here is the submission template for anyone that wants to jump right in, but please review all challenge and prompt-specific rules on the [official challenge page](https://dev.to/challenges/stellar) before submitting.
{% cta https://dev.to/new?prefill=---%0Atitle%3A%20%0Apublished%3A%20%0Atags%3A%20devchallenge%2C%20stellarchallenge%2C%20blockchain%2C%20web3%0A---%0A%0A*This%20is%20a%20submission%20for%20the%20%5BBuild%20Better%20on%20Stellar%3A%20Smart%20Contract%20Challenge%20%5D(https%3A%2F%2Fdev.to%2Fchallenges%2Fstellar)%3A%20Create%20a%20Tutorial*%0A%0A%23%23%20Your%20Tutorial%0A%3C!--%20You%20are%20welcome%20to%20publish%20a%20standalone%20DEV%20post%20for%20your%20tutorial%20if%20that%20feels%20more%20appropriate.%20Please%20either%20embed%20or%20provide%20a%20link%20to%20your%20standalone%20tutorial%20in%20this%20post%2C%20or%20directly%20share%20your%20tutorial%20here.%20--%3E%0A%0A%23%23%20What%20I%20Created%0A%3C!--%20Tell%20us%20what%20your%20submission%20is%20about%2C%20how%20it%20supports%20the%20Stellar%20developer%20experience%2C%20and%20how%20it%20can%20be%20used%20by%20other%20developers.%20--%3E%0A%0A%23%23%20Journey%0A%3C!--%20Tell%20us%20about%20your%20research%20and%20content%20creation%20process%2C%20the%20motivation%20behind%20your%20submission%2C%20what%20you%20learned%2C%20your%20experience%20with%20the%20ecosystem%2C%20anything%20you%20are%20particularly%20proud%20of%2C%20what%20you%20hope%20to%20do%20next%2C%20etc.%20--%3E%0A%0A%3C!--%20Team%20Submissions%3A%20Please%20pick%20one%20member%20to%20publish%20the%20submission%20and%20credit%20teammates%20by%20listing%20their%20DEV%20usernames%20directly%20in%20the%20body%20of%20the%20post.%20--%3E%0A%0A%3C!--%20Don%27t%20forget%20to%20add%20a%20cover%20image%20(if%20you%20want).%20%20--%3E%0A%0A%3C!--%20IMPORTANT%20LAST%20STEP%3A%20Use%20the%20email%20address%20you%20have%20associated%20with%20your%20DEV%20account%20and%20fill%20out%20this%20form%20on%20the%20Stellar%20website%3A%20https%3A%2F%2Fstellar.org%2Fcommunity%2Fevents%2Fbuild-better-smart-contract-challenge%20--%3E%0A%0A%3C!--%20Thanks%20for%20participating!%20%20--%3E %}
Submission Template for Create a Tutorial
{% endcta %}
{% endcard %}
## Prizes
We’ll be splitting our $50,000 prize pool six ways. Here is what our prompt winners and additional prize category winners will receive:
**Prompt Winners (2):**
- $13,000 USD
- An invitation to [Meridian](https://meridian.stellar.org/?utm_campaign=buildbetter), Stellar’s annual conference in London (October 15-17, all travel expenses paid for).
- Exclusive DEV Badge
- A gift from the [DEV Shop](https://shop.forem.com)
**Prize Category Winners (4):**
- $6,000 USD
- Exclusive DEV Badge
- A gift from the [DEV Shop](https://shop.forem.com)
**All Participants** with a valid submission will receive a completion badge on their DEV profile.
{% card %}
## How To Submit Your Project
At minimum, you will need to take the following steps to submit a valid entry:
1. Fill out [this form](https://stellar.org/community/events/build-better-smart-contract-challenge?utm_campaign=buildbetter) on the Stellar website. Make sure the email address you sign up with matches the email address associated with your DEV account so we can verify your submission.
2. Publish a post using the submission template associated with each prompt.
All participation guidelines (i.e. judging criteria, links to contest rules, etc) can be found on the [official challenge page](https://dev.to/challenges/stellar) so be sure to review that information thoroughly before submitting.
{% endcard %}
## Getting Started
We know it can be a bit intimidating to jump into web3 and blockchain, so the Stellar team has published a companion guide that covers all the topics you need to get started:
{% link https://dev.to/stellar/build-better-with-stellar-smart-contract-challenge-a-companion-guide-2ing %}
Additionally, we encourage all participants to join the `dev-hack` channel in the [Stellar Dev Discord](https://discord.com/invite/stellardev), a community server for asking questions and meeting the community of developers building with Stellar.
## Need Inspiration?
Below are a few ideas for both prompts to get your creative juices flowing.
**Your smart contract dApp could be related to:**
- A game where players interact on-chain to compete against each other
- A public goods application where interactions with the dApp could result in real-world positive impact.
- A DAO or governance-related dApp
- Identity Tooling
- Financial services, like a wallet or payment dApp
**Your tutorial could focus on:**
- Code examples (i.e.[Solidity by Example](https://solidity-by-example.org/))
- Fun dApp tutorials (i.e. [Pet Shop Tutorial](https://trufflesuite.com/blog/learn-ethereum-the-fun-way-with-our-pet-shop-tutorial/))
- Soroban for X developer (X = another smart contracts platform, such as [Ethereum](https://ethereum.org/en/), [Near](https://near.org/), or [Solana](https://solana.com/))
We can’t wait to see what you come up with.
## Additional Resources
### For building DeFi protocols:
- **[Getting Started with Writing Smart Contracts](https://developers.stellar.org/docs/smart-contracts/getting-started/setup?utm_campaign=buildbetter)**: a comprehensive tutorial that acts as the gateway to the Stellar smart contract developer experience
- **[Soroban Quest](https://fastcheapandoutofcontrol.com/tutorial)**: complete interactive challenges to understand the fundamentals of smart contract development
- **[Okashi](https://okashi.dev/)**: get started building your own Stellar smart contracts right from your browser
- **[Liquidity Pool](https://github.com/CheesecakeLabs/soroban-dapps/tree/main/liquidity-pool)**: a complete Liquidity Pool example dApp with smart contracts and UI elements
- **[Circle Stellar USDC Faucet](https://faucet.circle.com/)**: get Testnet USDC to use in your development efforts
- **[Create Soroban dApp Boilerplate](https://create-soroban-dapp.paltalabs.io/)**: Create your dApp with just one command line.
- [Video Walkthrough & Tutorial](https://www.youtube.com/watch?v=LggPeU7qAyE&list=PLNwRlLvlWA8kLnw3PJk7px29wswD69KAS)
### For building wallets:
- **[Stellar Wallet SDK](https://stellar.org/products-and-tools/wallet-sdk?utm_campaign=buildbetter)**: a collection of SDKs enabling you to take advantage of the pre-existing deposit/withdraw capabilities of network anchors
- **[Stellar Quest](https://quest.stellar.org?utm_campaign=buildbetter)**: interactively learn and understand the fundamentals of interacting with the Stellar network: transactions, operations, accounts, etc.
- **[Build Applications Tutorials](https://developers.stellar.org/docs/building-apps/overview?utm_campaign=buildbetter)**: a few written tutorials focusing on JavaScript implementations of common wallet functionality
- **[Stellar Design System](https://github.com/stellar/stellar-design-system/tree/main)**: components and styles that can make your frontend development easier
### Tools
#### Explore the Network
- **[Stellar Laboratory](https://laboratory.stellar.org/#?network=test&utm_campaign=buildbetter)**: interacts with the network and queries network activity
- **[Stellar.Expert](https://stellar.expert/)**: Block Explorer to view ledger entries, accounts, assets, analytics, etc.
- **[Data Indexers](https://developers.stellar.org/docs/tools/developer-tools?utm_campaign=buildbetter#data-indexers)**: services and infrastructure available for you to query and monitor network state and activity
#### Connect to the Network
- **[Freighter Browser Wallet](https://www.freighter.app/)**: a wallet developed and maintained by SDF
- **[Stellar Wallets Kit](https://stellarwalletskit.dev/)**: a community-built library that integrates multiple browser wallets into a frontend project
- **[@soroban-react](https://soroban-react.paltalabs.io/)**: connects ReactJS frontends with wallets like Lobstr, Freighter, Xbull. Help you create the messages that users will sign.
- **[Simple Stellar Signer](https://github.com/bigger-tech/simple-stellar-signer)**: a plug-and-play tool to integrate your solution with multiple wallets at once
- **[Account Viewer](https://accountviewer.stellar.org/?utm_campaign=buildbetter)**: a simple wallet, with available source code, that can be used to interact with a Stellar account on Mainnet or Testnet
### Build on the Network
- **[Developer Tools](https://developers.stellar.org/docs/tools/developer-tools?utm_campaign=buildbetter)**: an organized list of available tools, services, etc. to jumpstart or enhance your development experience
- **[SDK Library](https://developers.stellar.org/docs/tools/sdks/library?utm_campaign=buildbetter)**: Stellar boasts an impressive collection of SDKs you can use to interact with the network in almost any language you could ever want
- **[Beans POS Merchant SDK](https://github.com/Beans-BV/merchant_sdk_javascript)**: an SDK powered by Beans Wallet to help developers implement Point-of-Sale functionality into their app using Stellar
- **[Create Soroban dApp Video Workshop](https://youtu.be/LggPeU7qAyE)**: tutorial and walkthrough on how to create a dApp
- **Sorochat: Creating a chat dApp on Soroban (tutorial):**
- [Part One](https://youtu.be/rWTpH_o8-W4)
- [Part Two](https://youtu.be/yQIg0dbzav0)
- **[How to Start Developing on Stellar (video workshop)](https://youtu.be/yQIg0dbzav0)**
- **[Build your first wallet on Stellar (video workshop)](https://www.youtube.com/watch?v=C7SfumZ3cvo&list=PLfEHHr3qexv9GcL6BzVWTYrlFOhnMJfew&index=14)**
## Important Dates
- July 10: Build Better on Stellar: Smart Contract Challenge begins!
- <mark>August 18: Submissions due at 11:59 PM PDT</mark>
- August 27: Winners Announced
Questions about the challenge? Ask them below.
Good luck and happy coding!
| thepracticaldev |
1,918,864 | Weekly Watercooler Thread | This is a general discussion thread about... Whatever. What's new in your life? Hobbies, interests,... | 0 | 2024-07-10T18:11:24 | https://dev.to/ben/weekly-watercooler-thread-1gd1 | watercooler, discuss | This is a general discussion thread about... Whatever. What's new in your life?
Hobbies, interests, games, kids, parents, travel, career updates, whatever.
Let's keep this chat light and positive and see if it can become a nice weekly check-in.
| ben |
1,919,445 | Cloud Risk Management Best Practices | Cloud computing has revolutionized how businesses operate, offering immense computing power and... | 0 | 2024-07-11T08:17:26 | https://www.clouddefense.ai/cloud-risk-management-best-practices/ |
Cloud computing has revolutionized how businesses operate, offering immense computing power and scalability. However, this advancement also introduces significant risks, making cloud risk management crucial. Here, we provide a concise guide to creating a robust cloud management plan to harness the full potential of cloud computing technology.
###Understanding Cloud Risk Management
Cloud computing delivers data and resources on-demand over the internet, enabling access from anywhere. As companies migrate to cloud-based infrastructures, they face numerous security challenges. Risk management identifies, assesses, and controls these risks, ensuring a secure system and a smooth software development cycle.
###Key Risks in Cloud Computing
Several risks are inherent in cloud computing environments. Cloud service provider risk is one of the primary concerns, as vendors must prioritize security to mitigate threats. Internet availability is another critical factor; continuous connectivity is essential, and downtime can lead to service failures and client distrust. Compliance risk arises when a cloud service provider fails to adhere to industry standards, potentially causing regulatory issues for the organization. Data breaches pose significant threats, as an attack on the cloud provider can compromise the data of all partner companies. External security risks, including user account hijacking and public internet exposure, also increase vulnerability to attacks.
###Calculating Potential Risks
Potential risks are calculated using the formula: **Potential Risk = Likelihood of a threat x Impact of the threat**. This helps prioritize threats based on severity, ensuring immediate attention to the most harmful risks.
###Cloud Security Risk Management Process
The cloud security risk management process involves several steps. Identifying risks is the first step, which involves spotting potential obstacles affecting productivity. Analyzing risks follows, assessing their impact on the organization. Evaluating risks helps prioritize them based on severity using risk scores. Mitigating risks involves using security tools to address high-severity risks first. Finally, monitoring risks ensures long-term resolution and involves following up on mitigated risks and documenting processes for future reference.
###Benefits of Risk Management
Effective risk management offers numerous benefits. It helps predict potential risks, allowing organizations to stay ahead by identifying possible threats early. This, in turn, increases business growth by ensuring system efficiency and enabling focus on growth without disruptions. Thorough documentation allows for analysis and improvement of company processes. Better use of resources is another advantage, as strategic resource allocation saves time and money.
###Best Practices for Cloud Risk Management
- **Assessing the Cloud Service Provider (CSP):** Evaluate the CSP’s compliance, security practices, availability, and business relations.
- **Deploying CASB:** Use a Cloud Access Security Broker for real-time monitoring and policy enforcement.
- **Using the Right Security Control:** Implement appropriate security measures based on identified risks.
- **Prioritizing Service Availability:** Create server redundancies to ensure constant service availability.
- **Understanding the Shared Responsibility Model:** Know the division of security responsibilities between the CSP and your organization.
- **Storing Encryption Keys Separately:** Keep encryption keys away from data storage locations for enhanced security.
###Conclusion
Cloud computing is integral to modern business, but it comes with security challenges. A comprehensive risk management plan ensures your system remains resilient and adaptable. Engage all stakeholders to craft an effective strategy tailored to your organization’s needs. | clouddefenseai | |
1,918,865 | Setting Sail in Style: A Look at the Latest in Luxury Cruises for 2024 | How can luxury cruise lines innovate their sustainability practices to minimize environmental impact... | 0 | 2024-07-11T03:34:15 | https://dev.to/digital_chaudhary_79/setting-sail-in-style-a-look-at-the-latest-in-luxury-cruises-for-2024-2jai | How can luxury cruise lines innovate their sustainability practices to minimize environmental impact while maintaining the high-end experience their guests expect?
**The Exciting World of Luxury Cruises in 2024: Latest Updates and Highlights**
As the travel industry continues to evolve, luxury cruise lines are stepping up their game for 2024 with new ships, unique itineraries, and enhanced expedition experiences. Here are the late
st updates and highlights from some of the top luxury cruise lines for the upcoming year.
Seabourn: Pioneering Expedition Cruises
Seabourn is set to impress in 2024 with the introduction of their expedition ships, Seabourn Venture and Seabourn Pursuit. These ships will offer unparalleled adventures from the Arctic to Antarctica, equipped with custom-built submarines for underwater exploration. Key itineraries include:
Kimberleys, Australia: Six voyages from June to August 2024.
Papua New Guinea and West Papua: 15-day voyages in May-June and August-September 2024.
South Pacific to Chile: 14-20 day cruises in March-April and September-October 2024.
Antarctic Cruises: 11-21 day voyages from October 2024 to March 2025 (Cruise Hive) .
Cunard: Welcoming Queen Anne
Cunard will launch its highly anticipated new ship, Queen Anne, in May 2024. This addition to the fleet will sail around the British Isles, Scandinavia, and other European destinations, offering a blend of tradition and modern luxury .
Crystal Cruises: A Grand Relaunch
Crystal Cruises is relaunching with the refurbished Crystal Symphony and Crystal Serenity. Crystal Symphony will navigate the Mediterranean, while Crystal Serenity will transit the Panama Canal and spend the summer in Alaska, promising guests a revitalized and luxurious cruising experience .
Explora Journeys: Expanding the Fleet
Explora Journeys will debut its second ship, Explora II, in August 2024. Both Explora I and Explora II will offer Mediterranean tours, visiting in-demand ports in Greece, Italy, and Spain. This expansion highlights Explora's commitment to providing exclusive and immersive travel experiences (Travel + Leisure).
Oceania Cruises: Introducing Oceania Vista
Oceania Cruises will launch the new Oceania Vista, which will spend the summer of 2024 in the Mediterranean. A standout itinerary is a 24-day journey from Venice to Athens, featuring stops in iconic cities such as Rome, Monte Carlo, Barcelona, and Istanbul (Travel + Leisure).
Ponant: Extraordinary Expeditions
Ponant, in partnership with the Explorers Club, will embark on a series of 12 expeditions, starting with a 30-day half-circumnavigation of Antarctica aboard the luxury icebreaker Le Commandant Charcot. This journey will begin in South America and end in New Zealand, offering a once-in-a-lifetime adventure .
Booking and Deals: Secure Your Spot Early
Given the high demand for luxury cruises, early booking is highly recommended to secure preferred suites and the best fares. Many cruise lines offer all-inclusive deals with benefits such as stateroom upgrades, onboard spending money, and more. Booking early ensures you get the best value and availability for your desired voyage (The Cruise Line).
Conclusion
The luxury cruise industry is poised for an exciting year in 2024, with new ships, innovative itineraries, and enhanced experiences designed to cater to discerning travelers. Whether you're seeking adventure in remote destinations or a leisurely exploration of iconic cities, these luxury cruise lines offer a diverse array of options to suit every traveler's desires. Book early to ensure you don't miss out on these incredible journeys.
For more information and to book your 2024 luxury cruise, [visit Civil Trip](https://civiltrip.com/), or consult with a specialist travel agency to find the best deals and itineraries tailored to your preferences
| digital_chaudhary_79 | |
1,918,866 | From Zero to Production: Deploying a Full-Stack Application with Architect | Introduction to Architect's Platform In the fast-paced world of software development,... | 0 | 2024-07-10T18:12:46 | https://dev.to/joswellahwasike/from-zero-to-production-deploying-a-full-stack-application-with-architect-190h | ## Introduction to Architect's Platform
In the fast-paced world of software development, getting your application from conception to production can be a daunting task. Architect simplifies this journey with its continuous delivery platform, enabling developers to create preview, staging, and production environments effortlessly. Architect's dependency-aware system and GitOps-powered workflows ensure that every pull request (PR) spins up a production-grade deployment, including all necessary APIs, databases, and events. This article will guide you through deploying a full-stack application using Architect, highlighting best practices and troubleshooting tips along the way.
## Setting Up Your Development Environment
Before diving into the deployment process, it’s essential to set up your development environment correctly. Follow these steps to ensure a smooth start:
1. **Install Architect CLI:** Begin by installing the Architect command-line interface (CLI). This tool will help you manage your deployments and configurations efficiently.
```bash
npm install -g @architect/architect
```
The CLI provides commands for managing environments, deploying services, and configuring dependencies, making it a critical tool for using Architect.
2. **Initialize Your Project:** Create a new directory for your project and initialize it with Architect.
```bash
mkdir my-fullstack-app
cd my-fullstack-app
architect init
```
Initializing the project sets up the necessary configuration files and directories that Architect uses to manage your application.
3. **Set Up Version Control:** Ensure your project is under version control. Initialize a Git repository if you haven’t already.
```bash
git init
```
Version control is essential for tracking changes, collaborating with team members, and integrating with CI/CD pipelines.
4. **Configure Environment Variables:** Architect relies on environment variables for configuration. Create a .env file in your project root and add the necessary variables.
<env
DATABASE_URL=your_database_url
API_KEY=your_api_key
Environment variables allow you to manage sensitive information and configuration settings that can vary between different environments (development, staging, production).
### Configuring Dependencies
Architect’s platform is dependency-aware, which means it automatically manages the dependencies required for your application to run. Here’s how to configure them:
1. **Define Dependencies:** In your project, create a architect.yml file to define your services and dependencies.
```yaml
services:
web:
image: node:14
command: npm start
ports:
- 3000:3000
environment:
DATABASE_URL: ${DATABASE_URL}
API_KEY: ${API_KEY}
database:
image: postgres:13
ports:
- 5432:5432
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: password
POSTGRES_DB: mydb
```
In this example:
* The web service uses a Node.js image and starts the application with npm start. It exposes port 3000 and relies on DATABASE_URL and API_KEY environment variables.
* The database service uses a PostgreSQL image, exposing port 5432 and setting up the database with a user, password, and database name.
2. **Install Service Dependencies:** Use the Architect CLI to install and configure your services.
```bash
architect install
```
This command ensures that all defined services and their dependencies are correctly set up and ready for deployment.
### Deploying Your Application
With your environment set up and dependencies configured, it’s time to deploy your application. Architect makes this process straightforward:
1. **Create Deployment Environments:** Architect supports multiple environments such as development, staging, and production. Create these environments in your architect.yml file.
```yaml
environments:
dev:
services:
- web
- database
staging:
services:
- web
- database
production:
services:
- web
- database
```
Each environment specifies which services to deploy, allowing you to maintain consistency across development, testing, and production stages.
2. **Deploy to Development:** Start by deploying to your development environment.
```bash
architect deploy dev
```
This command deploys your application to the development environment, allowing you to test and iterate quickly.
3. Promote to Staging: Once you’re satisfied with the development deployment, promote it to staging for further testing.
```bash
architect promote dev staging
```
Promoting a deployment moves it to the next environment (staging), where it can undergo more rigorous testing before production.
4. **Deploy to Production:** Finally, deploy your application to the production environment.
```bash
architect deploy production
```
Deploying to production makes your application live for end users, ensuring it meets all quality and performance standards.
### Best Practices and Troubleshooting
To ensure a smooth deployment process, follow these best practices and troubleshooting tips:
1. **Automate Testing:** Integrate automated tests into your CI/CD pipeline to catch issues early. Use tools like Jest for unit testing and Cypress for end-to-end testing.
```bash
npm test
```
Automated testing helps maintain code quality and reduces the risk of deploying bugs to production.
2. **Monitor Deployments:** Use monitoring tools to keep an eye on your deployments. Tools like Prometheus and Grafana can help you track performance and identify issues.
Monitoring provides insights into the health and performance of your application, enabling proactive issue resolution.
3. **Rollback Strategies:** Have a rollback strategy in place in case something goes wrong. Architect allows you to revert to a previous deployment easily.
```bash
architect rollback production
```
Rollbacks ensure that you can quickly restore a stable version of your application if a deployment fails.
4. **Documentation:** Maintain comprehensive documentation for your deployment process and configurations. This helps in onboarding new team members and troubleshooting issues.
Clear documentation ensures consistency and provides a reference for resolving problems.
5. **Community Support:** Join the Architect community on Discord for support and to share your experiences. Engaging with the community can provide valuable insights and solutions to common problems.
Community engagement fosters collaboration and helps you stay updated with best practices and new features.
## Conclusion
Architect's continuous delivery platform streamlines the process of deploying full-stack applications, making it easier for developers to manage dependencies, create environments, and deploy production-grade applications.
By following the steps outlined in this article, you can go from zero to production with confidence, leveraging Architect’s powerful features to simplify your deployment journey. Remember to follow best practices and engage with the community to continuously improve your deployment process. Happy deploying!
| joswellahwasike | |
1,918,867 | Typescript Coding Chronicles: Merge Strings Alternately | Problem Statement: You are given two strings word1 and word2. Merge the strings by adding... | 0 | 2024-07-10T18:17:03 | https://dev.to/__zamora__/typescript-coding-chronicles-merge-strings-alternately-5ia | webdev, programming, typescript, javascript | ## Problem Statement:
You are given two strings `word1` and `word2`. Merge the strings by adding letters in alternating order, starting with `word1`. If a string is longer than the other, append the additional letters onto the end of the merged string.
### Example 1:
- Input: `word1 = "abc"`, `word2 = "pqr"`
- Output: `"apbqcr"`
- Explanation: The merged string will be merged as so:
- word1: `a b c`
- word2: ` p q r`
- merged: `a p b q c r`
### Example 2:
- Input: `word1 = "ab"`, `word2 = "pqrs"`
- Output: `"apbqrs"`
- Explanation: Notice that as `word2` is longer, `"rs"` is appended to the end.
- word1: `a b`
- word2: ` p q r s`
- merged: `a p b q r s`
### Example 3:
- Input: `word1 = "abcd"`, `word2 = "pq"`
- Output: `"apbqcd"`
- Explanation: Notice that as `word1` is longer, `"cd"` is appended to the end.
- word1: `a b c d`
- word2: ` p q`
- merged: `a p b q c d`
### Constraints:
- `1 <= word1.length, word2.length <= 100`
- `word1` and `word2` consist of lowercase English letters.
## Understanding the Problem:
To solve this problem, we need to merge two strings by alternately adding characters from each string. If one string is longer, the remaining characters of the longer string are appended to the end of the merged string.
## Initial Thought Process:
A simple approach involves iterating through both strings simultaneously, adding characters from each to the merged string. If one string runs out of characters, append the rest of the other string to the merged result.
## Basic Solution:
### Code:
```typescript
function mergeStringsAlternately(word1: string, word2: string): string {
let mergedString = "";
let maxLength = Math.max(word1.length, word2.length);
for (let i = 0; i < maxLength; i++) {
if (i < word1.length) {
mergedString += word1[i];
}
if (i < word2.length) {
mergedString += word2[i];
}
}
return mergedString;
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the length of the longer string between `word1` and `word2`.
- **Space Complexity:** O(n), where n is the length of the resulting merged string.
### Limitations:
The basic solution is efficient given the problem constraints. It iterates through both strings once, making it quite optimal for this problem size.
## Optimized Solution:
Although the basic solution is already efficient, we can make it slightly more optimized in terms of code readability and handling the edge cases more succinctly by using a while loop.
### Code:
```typescript
function mergeStringsAlternatelyOptimized(word1: string, word2: string): string {
let mergedString = "";
let i = 0, j = 0;
while (i < word1.length || j < word2.length) {
if (i < word1.length) {
mergedString += word1[i++];
}
if (j < word2.length) {
mergedString += word2[j++];
}
}
return mergedString;
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the length of the longer string between `word1` and `word2`.
- **Space Complexity:** O(n), where n is the length of the resulting merged string.
### Improvements Over Basic Solution:
- The optimized solution handles edge cases within the loop, making the code cleaner.
- Incrementing indices inside the loop makes the code easier to follow.
## Edge Cases and Testing:
### Edge Cases:
1. `word1` is empty.
2. `word2` is empty.
3. `word1` and `word2` are the same length.
4. `word1` is longer than `word2`.
5. `word2` is longer than `word1`.
### Test Cases:
```typescript
console.log(mergeStringsAlternately("abc", "pqr")); // "apbqcr"
console.log(mergeStringsAlternately("ab", "pqrs")); // "apbqrs"
console.log(mergeStringsAlternately("abcd", "pq")); // "apbqcd"
console.log(mergeStringsAlternately("", "xyz")); // "xyz"
console.log(mergeStringsAlternately("hello", "")); // "hello"
console.log(mergeStringsAlternately("hi", "there")); // "htiheere"
console.log(mergeStringsAlternately("a", "b")); // "ab"
console.log(mergeStringsAlternatelyOptimized("abc", "pqr")); // "apbqcr"
console.log(mergeStringsAlternatelyOptimized("ab", "pqrs")); // "apbqrs"
console.log(mergeStringsAlternatelyOptimized("abcd", "pq")); // "apbqcd"
console.log(mergeStringsAlternatelyOptimized("", "xyz")); // "xyz"
console.log(mergeStringsAlternatelyOptimized("hello", "")); // "hello"
console.log(mergeStringsAlternatelyOptimized("hi", "there")); // "htiheere"
console.log(mergeStringsAlternatelyOptimized("a", "b")); // "ab"
```
## General Problem-Solving Strategies:
1. **Understand the Problem:** Carefully read the problem statement to understand what is required. Break down the problem into smaller components.
2. **Identify Patterns:** Look for patterns in the problem that can simplify the solution. For example, in this problem, the alternating pattern is key.
3. **Consider Edge Cases:** Think about different scenarios that might affect the solution, such as one string being empty or strings of different lengths.
4. **Start Simple:** Begin with a basic solution that works, even if it's not the most efficient. This helps to ensure you understand the problem.
5. **Optimize:** Once a basic solution is in place, look for ways to optimize it. This could involve reducing time complexity or making the code cleaner and more readable.
6. **Test Thoroughly:** Test your solution with various cases, including edge cases. Ensure that the solution handles all possible inputs correctly.
## Identifying Similar Problems:
1. **Interleaving Strings:**
- Problems where two strings or arrays need to be interleaved in a specific pattern.
- Example: Merging two sorted arrays into one sorted array.
2. **Zigzag Conversion:**
- Problems where characters or elements need to be placed in a zigzag or specific pattern.
- Example: Converting a string into a zigzag pattern and reading it row by row.
3. **String Weaving:**
- Problems involving weaving characters from multiple strings or lists together.
- Example: Combining multiple DNA sequences into one sequence by alternating nucleotides.
4. **Merging Lists:**
- Problems involving merging two or more lists based on specific rules.
- Example: Merging multiple sorted linked lists into one sorted linked list.
## Conclusion:
- The problem of merging two strings alternately can be efficiently solved with a straightforward approach.
- Understanding the problem and breaking it down into manageable parts is crucial.
- Testing with various edge cases ensures robustness.
- Recognizing patterns in problems can help apply similar solutions to other challenges.
By practicing such problems and strategies, you can improve your problem-solving skills and be better prepared for various coding challenges. | __zamora__ |
1,918,868 | Identifying 🤖 AI Articles? | Generative AI articles seem to be common now and detecting them can be difficult. I even found an... | 0 | 2024-07-10T23:13:41 | https://dev.to/oculus42/identifying-ai-articles-2olj | webdev, discuss, ai | Generative AI articles seem to be common now and detecting them can be difficult. I even found an AI-generated article about detecting AI-generated articles. It was created by an AI-based SEO service, which I am not linking it because I do not think it should receive more SEO benefit. This article is mostly my thoughts on using and identifying AI content, but I'm very interested to hear how others detect/determine AI generated content.
### A Reminder
Dev's Code of Conduct includes a [section on AI-assisted articles](https://dev.to/guidelines-for-ai-assisted-articles-on-dev) which every poster should be familiar with and strive to adhere to.
This article contains AI-generated content, which is specifically called out at the end.
### Risk vs. Reward
Generative AI is an easy way to build a portfolio of work and get community involvement. Using AI to help structure an article or flesh out an argument can speed up content creation and communication, but leaning on AI to provide information which we do not know comes with risks. Unknowingly disseminating outdated or incorrect information can lead others to question our capability or competency. In an online article it might be shrugged off by the masses, but there can be consequences to using AI. Still, the allure is there.
If we do use AI content, I think it is important to be forthcoming about that use. Using a spell checker is standard. Microsoft Word has had a grammar check since Microsoft Word in the 1990's, and leveraging this new tool to _improve_ our writing is fine, but misusing it can be unethical or harmful.
### 🔍 Detection Tools
There are tools that attempt to identify generated content, but they are not perfect. Even [OpenAI shut down their own AI-generated content detector](https://www.pcmag.com/news/openai-quietly-shuts-down-ai-text-detection-tool-over-inaccuracies) for low reliability.
Tools like [QuillBot's AI Detector](https://quillbot.com/ai-content-detector) will attempt to identify generated content, but they are not perfect and adding or removing a sentence can make the calculation shift by tens of percent. In fact, QuillBot considered this paragraph to be AI-written when I fed it part of this article. While this article contains some AI-generated content, it is specifically called out, below.
### Common AI Patterns
One repeated feature I've found is the "listicle". These were popular before generative AI, but they are much easier to produce, now. Articles containing numbered entries, each with a single sentence or short paragraph, alert me to be on the lookout for the possibility of generated content. When there is a lack of deeper information about the details, I tend to stop reading. It's occasional that a surface-read of a topic is useful, but it's easy to get that from a fleshed out article, where a generated high-level summary offers nothing to build on for the parts which interest you.
Once I suspect a generated article, I move on to looking for links to source material. If there are links, are they to relevant and authoritative sources? I see generated content used for SEO and link-farming which typically contain one or two links back to a site/company, often with a very SEO-focused URLs.
If you suspect a specific piece of content uses generative AI, it could be relevant to compare the voice/style to other content known to come from the same author.
While outside the scope of this article, I recall reading about using Markov chains to help identify and validate authorship of content in the early 2000s. I could not readily locate the article I read back then, but I did find abstracts of research papers from [2002](https://www.researchgate.net/publication/2534445_Using_Markov_Chains_for_Identification_of_Writers) and [2006](https://conradsanderson.id.au/pdfs/sanderson_icpr_2006.pdf), on the off chance anyone is interested in this wild tangent.
### 📢🤖 The "Generative AI Voice"
By "voice" I mean the wording and tone of the article. While it can be hard to articulate, some wording can trigger an "AI Alarm" in my head. Providing unexpected alternatives is one that I recognize. If an article presents a specific solution, offering alternatives later on _could be_ thoroughness, but it often comes off feeling like an unnatural shift of direction.
## Summary
So there are a few obvious signs, like shallow listicles lacking links or detail, and long "authoritative" content with no sources.
What tips can you share about identifying AI-generated content?
Are there specific things that set off your "AI Alarm"?
## 🧐 Reference Content
I've asked ChatGPT to produce some articles on how to identify AI-generated articles. These examples are included below. Some of the suggestions may be helpful, but for me the more important question is about the tone or pattern. Does the style of these example articles seem familiar? I've added emphasis in a few places that seemed relevant to me. I hope you enjoy!
----
**AI generated content below this line (emphasis mine)**
----
## How to Identify Articles Written by AI
As artificial intelligence (AI) continues to advance, distinguishing between human-written and AI-generated content has become increasingly challenging. However, there are several indicators you can look for to help identify articles written by AI:
### 1. Consistency in Tone and Style
AI-generated content often exhibits a highly consistent tone and writing style throughout the article. While human writers naturally vary their tone and style, AI tends to maintain a uniform approach, which can sometimes feel mechanical or **overly formal**.
### 2. Repetition and Redundancy
AI models may produce content that frequently **repeats** phrases or ideas. This **redundancy** occurs because the AI is trying to ensure it covers the topic thoroughly, but it can result in **repetitive** language that feels unnatural.
### 3. Lack of Deep Insight or Personal Touch
AI lacks personal experiences and emotions, which means it often produces content that **lacks deep insight** or a personal touch. Human writers typically infuse their work with anecdotes, opinions, and unique perspectives that AI cannot replicate.
### 4. Overly Perfect Grammar and Syntax
While human writers make occasional grammatical errors or typos, AI-generated content tends to have perfect grammar and syntax. This precision can be a giveaway, especially if the text lacks the usual small mistakes found in human writing.
### 5. Pattern Recognition
Experienced readers may notice certain patterns in AI-generated content. For example, AI might use specific sentence structures or transitional phrases more frequently than a human writer would.
### 6. Absence of Complex Emotions
AI struggles with conveying complex emotions and nuanced opinions. Articles written by AI may **lack the depth** and emotional range that a human writer can provide, making them feel flat or unemotional.
### 7. Fact-Checking Inconsistencies
While AI can generate accurate information, it may also produce content with factual inconsistencies or outdated information. Human writers typically cross-reference sources and update their knowledge base more effectively.
### 8. Use of Generic Examples
AI often uses **generic examples** and scenarios that lack specificity. Human writers, on the other hand, tend to provide more detailed and context-rich examples based on their experiences and research.
### Conclusion
Identifying AI-generated content requires a keen eye for detail and an understanding of the nuances in writing styles. By paying attention to consistency, repetition, insight, grammar, patterns, emotional depth, factual accuracy, and specificity, you can better discern whether an article was written by a human or an AI.
As AI technology continues to improve, these distinctions may become less apparent, making it even more crucial to stay informed about the capabilities and limitations of AI in content creation.
----
## How to Identify AI-Written Articles
Distinguishing between human and AI-generated content is becoming harder. Here are key indicators:
### 1. Consistent Tone and Style
AI content often has a **uniform tone and style**, which can feel mechanical.
### 2. Repetition
AI may **repeat** phrases or ideas to cover a topic thoroughly, resulting in **unnatural repetition**.
### 3. Lack of Insight
AI lacks personal experiences, leading to **content without deep insight** or a personal touch.
### 4. Perfect Grammar
AI-generated text usually has flawless grammar and syntax, unlike human writing with occasional errors.
### 5. Recognizable Patterns
AI often uses specific sentence structures or transitional phrases more frequently.
### 6. No Complex Emotions
AI struggles with conveying complex emotions, making the content feel flat.
### 7. Fact-Checking Issues
AI may produce content with factual inconsistencies or outdated information.
### 8. Generic Examples
AI tends to use **generic examples** that lack specificity.
### Summary
To identify AI-written articles, look for consistency, repetition, lack of insight, perfect grammar, recognizable patterns, absence of complex emotions, fact-checking issues, and generic examples. As AI advances, these distinctions may blur, so staying informed is crucial. | oculus42 |
1,918,898 | Chart of the Week: Creating a WPF Range Bar Chart to Visualize the Hearing Range of Living Beings | TL;DR: The human hearing range spans from 20 Hz to 20 kHz. Similarly, we’ll visualize the hearing... | 0 | 2024-07-11T16:55:14 | https://www.syncfusion.com/blogs/post/wpf-range-bar-chart-hearing-range | wpf, chart, desktop, datavisualization | ---
title: Chart of the Week: Creating a WPF Range Bar Chart to Visualize the Hearing Range of Living Beings
published: true
date: 2024-07-10 14:39:37 UTC
tags: wpf, chart, desktop, datavisualization
canonical_url: https://www.syncfusion.com/blogs/post/wpf-range-bar-chart-hearing-range
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hhnoub3kvdvrmt3ygbjh.png
---
**TL;DR:** The human hearing range spans from 20 Hz to 20 kHz. Similarly, we’ll visualize the hearing ranges of various living beings by customizing the Syncfusion WPF Range Column Chart to create a Range Bar Chart.
Welcome to the **Chart of the Week** blog series!
Today, we’ll explore how to visualize the hearing range of various living beings, from humans to animals, by creating a Range Bar Chart ([Transposed Column Chart](https://www.syncfusion.com/wpf-controls/charts/wpf-range-column-chart "WPF Range Column Chart")) using the [Syncfusion WPF Charts](https://www.syncfusion.com/wpf-controls/charts/ "WPF Charts control") control. We’ll also customize the series and marker appearance of the range bar to achieve the dumbbell chart appearance.
The Range Bar Chart is a horizontal range column chart that uses range bars to display values for one or more items based on high and low values. It is also called a dumbbell chart. Using this chart, we’ll visualize the hearing range from Hertz (Hz) to kilohertz (kHz) for various living beings on Earth.
Refer to the following image.[](https://www.syncfusion.com/blogs/wp-content/uploads/2024/07/Visualizing-the-hearing-range-of-living-beings-using-Syncfusion-WPF-Range-Bar-Chart.png)
Let’s explore the steps to showcase these details using the WPF Range Bar Chart!
## Step 1: Gather hearing range data
Before creating the chart, we need to gather data on the hearing range of various living beings from [Wikipedia](https://en.wikipedia.org/wiki/Hearing_range#:~:text=Several%20animal%20species%20can%20hear,as%20low%20as%207%20Hz "Wikipedia Link: Hearing range").
## Step 2: Populate the data for the chart
Define the **HearingRangeModel** class with the **LivingBeings**, **HighValue**, and **LowValue** properties to store the hearing capacity data for our chart.
```csharp
public class HearingRangeModel
{
public string LivingBeings { get; set; }
public double HighValue { get; set; }
public double LowValue { get; set; }
public HearingRangeModel(string livingBeings, double highValue, double lowValue)
{
LivingBeings = livingBeings;
HighValue = highValue;
LowValue = lowValue;
}
}
```
Now, generate the data collection that illustrates the hearing capacity sources using the **HearingRangeData** class with the **Data** property.
```csharp
public class HearingRangeData
{
public ObservableCollection<HearingRangeModel> Data { get; set; }
public HearingRangeData()
{
Data = new ObservableCollection<HearingRangeModel>()
{
new HearingRangeModel("Tuna",50,1100),
new HearingRangeModel("Chicken", 125,2000),
new HearingRangeModel("Goldfish", 20, 3000),
new HearingRangeModel("Bullfrog",100,3000),
new HearingRangeModel("Catfish",50,4000),
new HearingRangeModel("Treefrog",50, 4000),
new HearingRangeModel("Canary",250, 8000),
new HearingRangeModel("Cockatiel",250,8000),
new HearingRangeModel("Parakeet",200,8500),
new HearingRangeModel("Elephant",17,10500),
new HearingRangeModel("Owl",200,12000),
new HearingRangeModel("Human",31,19000),
new HearingRangeModel("Chinchilla",52,33000),
new HearingRangeModel("Horse",55,33500),
new HearingRangeModel("Cow",23,35000),
new HearingRangeModel("Raccoon",100,40000),
new HearingRangeModel("Sheep",125,42500),
new HearingRangeModel("Dog",64,44000),
new HearingRangeModel("Ferret",16,44000),
new HearingRangeModel("Hedgehog",250,45000),
new HearingRangeModel("Guinea-pig",47,49000),
new HearingRangeModel("Rabbit",96,49000),
new HearingRangeModel("Sealion",200,50000),
new HearingRangeModel("Gerbil",56,60000),
new HearingRangeModel("Opossum",500,64000),
new HearingRangeModel("Albinorat", 390, 72000),
new HearingRangeModel("Hoodedrat",530,75000),
new HearingRangeModel("Cat",55,77000),
new HearingRangeModel("Mouse",900, 79000),
new HearingRangeModel("Little-brown-bat",10300,115000),
new HearingRangeModel("Belugawhale",1000,123000),
new HearingRangeModel("Bottlenosedolphin",150,150000),
new HearingRangeModel("Porpoise", 75, 150000),
};
}
}
```
## Step 3: Configure the Syncfusion WPF Charts
Let’s configure the Syncfusion WPF Charts control using this [documentation](https://help.syncfusion.com/wpf/charts/getting-started "Getting started with WPF Charts").
Refer to the following code example.
```xml
<chart:SfChart>
<chart:SfChart.PrimaryAxis>
<chart:CategoryAxis>
</chart:CategoryAxis>
</chart:SfChart.PrimaryAxis>
<chart:SfChart.SecondaryAxis>
<chart:NumericalAxis>
</chart:NumericalAxis>
</chart:SfChart.SecondaryAxis>
</chart:SfChart>
```
## Step 4: Binding data to WPF Range Bar Chart
To visualize the hearing range data, we will use the Syncfusion [RangeColumnSeries](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.RangeColumnSeries.html "RangeColumnSeries class for the WPF Charts"). We will set the **IsTransposed** property to **True** to design it to replicate the Range Bar Chart.
Refer to the following code example. Here, we have bound the **ItemSource**, **XBindingPath**, **High**, and **Low** properties with the **Data**, **LivingBeings**, **HighValue**, and **LowValue** properties, respectively.
```xml
<chart:RangeColumnSeries ItemsSource="{Binding Data}" High="HighValue" Low="LowValue" XBindingPath="LivingBeings" IsTransposed="True">
</chart:RangeColumnSeries>
```
## Step 5: Customize the chart appearance
We can enhance the appearance of the WPF Range Bar Chart by customizing its elements, such as the title, axis, data labels, and marker.
### Customizing the chart title
Adding a title can help make the data presented in the chart more easily understood. Refer to the following code example to customize the chart title.
```xml
<chart:SfChart HorizontalHeaderAlignment="Left" >
<chart:SfChart.Header>
<Grid Margin="0,0,0,10">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="13"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical" Margin="0,5,0,0" Background="#2582a4"/>
<StackPanel Grid.Column="1" Margin="3,0,0,0">
<TextBlock Text="Hearing Range Among Different Living Beings" FontSize="25" FontWeight="SemiBold" Foreground="Black"/>
<TextBlock Text="Frequency Spectrum from Hertz (Hz) to Kilohertz (kHz)" FontSize="18" Foreground="Gray"/>
</StackPanel>
</Grid>
</chart:SfChart.Header>
</chart:SfChart>
```
### Customizing the chart axis
You can customize the chart axis using the following properties:
- **ShowGridLines:** To adjust the visibility of the major grid lines.
- **LabelStyle:** To modify the style of the axis labels.
- **LabelPlacement:** To place the axis label at the desired position.
- **LabelCreated:** To customize the label format for a specific or whole label.
Refer to the following code example.
**XAML**
```xml
<chart:SfChart.PrimaryAxis>
<chart:CategoryAxis AutoScrollingMode="End" AutoScrollingDelta="13" ShowGridLines="False" Interval="1" LabelPlacement="BetweenTicks">
<chart:CategoryAxis.LabelStyle>
<chart:LabelStyle FontSize="12"/>
</chart:CategoryAxis.LabelStyle>
</chart:CategoryAxis>
</chart:SfChart.PrimaryAxis>
<chart:SfChart.SecondaryAxis>
<chart:NumericalAxis Minimum="-10000" Maximum="180000" ShowGridLines="False" LabelCreated="LabelCreated">
<chart:NumericalAxis.LabelStyle>
<chart:LabelStyle FontSize="12"/>
</chart:NumericalAxis.LabelStyle>
</chart:NumericalAxis>
</chart:SfChart.SecondaryAxis>
```
**C#**
```csharp
private void LabelCreated(object sender, LabelCreatedEventArgs e)
{
double position = e.AxisLabel.Position;
if (position >= 1000 && position <= 180000)
{
string text = (position / 1000).ToString("N0");
e.AxisLabel.LabelContent = $"{text}kHz";
}
else
{
e.AxisLabel.LabelContent = $"{position:N0}Hz";
}
}
```
### Customizing the chart color and size
The following code example shows how to customize the chart’s size and color using the **SegmentSpacing** and **Interior** properties, respectively.
```xml
<chart:RangeColumnSeries SegmentSpacing="0.9">
<chart:RangeColumnSeries.Interior>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
<GradientStop Color="#2582a4" Offset="0"/>
<GradientStop Color="#ae3de0" Offset="0.5"/>
<GradientStop Color="#292F2E" Offset="1"/>
</LinearGradientBrush>
</chart:RangeColumnSeries.Interior>
</chart:RangeColumnSeries>
```
### Customize the data label and marker appearance
To improve readability, we can activate and customize the chart data labels and markers using the [AdornmentsInfo](https://help.syncfusion.com/cr/wpf/Syncfusion.UI.Xaml.Charts.AdornmentSeries.html#Syncfusion_UI_Xaml_Charts_AdornmentSeries_AdornmentsInfo "AdornmentsInfo property for the WPF Charts") property.
```xml
<chart:RangeColumnSeries>
<chart:RangeColumnSeries.AdornmentsInfo>
<chart:ChartAdornmentInfo ShowLabel="True" AdornmentsPosition="TopAndBottom" Background="Transparent" LabelPosition="Outer" ShowMarker="True" Symbol="VerticalLine">
<chart:ChartAdornmentInfo.LabelTemplate>
<DataTemplate>
<Label Content="{Binding Converter={StaticResource valueToRangeConverter}}" FontSize="10"/>
</DataTemplate>
</chart:ChartAdornmentInfo.LabelTemplate>
</chart:ChartAdornmentInfo>
</chart:RangeColumnSeries.AdornmentsInfo>
</chart:RangeColumnSeries>
```
### Enabling the panning interactivity
To improve the visualization, we can enable panning to scroll through series within a particular range using the [ChartZoomPanBehavior](https://help.syncfusion.com/wpf/charts/interactive-features/zoompan "ChartZoomPanBehavior property for the WPF Charts") and [AutoScrollingDelta](https://help.syncfusion.com/wpf/charts/axis#autoscrollingdelta "AutoScrollingDelta property for the WPF Charts") properties.
```xml
<chart:SfChart.PrimaryAxis>
<chart:CategoryAxis AutoScrollingMode="End" AutoScrollingDelta="13">
</chart:CategoryAxis>
</chart:SfChart.PrimaryAxis>
<chart:SfChart.Behaviors>
<chart:ChartZoomPanBehavior EnablePinchZooming="False" ResetOnDoubleTap="False" EnablePanning="True" EnableMouseWheelZooming="False"/>
</chart:SfChart.Behaviors>
```
After executing the previous code examples, the output will look like the following image.
<figure>
<img src="https://www.syncfusion.com/blogs/wp-content/uploads/2024/07/Visualizing-the-hearing-range-of-living-beings-using-Syncfusion-WPF-Range-Bar-Chart.png" alt="Visualizing the hearing range of living beings using Syncfusion WPF Range Bar Chart" style="width:100%">
<figcaption>Visualizing the hearing range of living beings using Syncfusion WPF Range Bar Chart</figcaption>
</figure>
## Conclusion
Thanks for reading! In this blog, we’ve seen how to visualize the data on hearing range using the [Syncfusion WPF Range Bar Chart](https://www.syncfusion.com/wpf-controls/charts/wpf-range-column-chart "WPF Range Column Chart") (Transposed Column Chart). We strongly encourage you to follow the steps outlined in this blog and share your feedback in the comments section below.
If you require assistance, please don’t hesitate to contact us via our [support forum](https://www.syncfusion.com/forums "Syncfusion Support Forum"), [support portal](https://support.syncfusion.com/ "Syncfusion Support Portal"), or [feedback portal](https://www.syncfusion.com/feedback "Syncfusion Feedback Portal"). We are always eager to help you!
## Related blogs
- [What’s New in WPF Gantt Chart: 2024 Volume 2](https://www.syncfusion.com/blogs/post/wpf-gantt-chart-2024-volume-2 "Blog: What’s New in WPF Gantt Chart: 2024 Volume 2")
- [Chart of the Week: Creating a WPF Pie Chart to Visualize the Percentage of Global Forest Area for Each Country](https://www.syncfusion.com/blogs/post/wpf-pie-chart-global-forest-area "Chart of the Week: Creating a WPF Pie Chart to Visualize the Percentage of Global Forest Area for Each Country")
- [Syncfusion Essential Studio 2024 Volume 2 Is Here!](https://www.syncfusion.com/blogs/post/syncfusion-essential-studio-2024-vol2 "Blog: Syncfusion Essential Studio 2024 Volume 2 Is Here!")
- [Chart of the Week: Creating a WPF Sunburst Chart to Visualize the Syncfusion Chart of the Week Blog Series](https://www.syncfusion.com/blogs/post/wpf-sunburst-chart-syncfusion-blogs "Blog: Chart of the Week: Creating a WPF Sunburst Chart to Visualize the Syncfusion Chart of the Week Blog Series") | jollenmoyani |
1,918,899 | Typescript Coding Chronicles: Greatest Common Divisor of Strings | Problem Statement: For two strings s and t, we say "t divides s" if and only if s = t + t... | 0 | 2024-07-10T18:22:46 | https://dev.to/__zamora__/typescript-coding-chronicles-greatest-common-divisor-of-strings-3ko6 | typescript, webdev, programming, javascript | ## Problem Statement:
For two strings `s` and `t`, we say "t divides s" if and only if `s = t + t + t + ... + t + t` (i.e., `t` is concatenated with itself one or more times).
Given two strings `str1` and `str2`, return the largest string `x` such that `x` divides both `str1` and `str2`.
### Example 1:
- Input: `str1 = "ABCABC"`, `str2 = "ABC"`
- Output: `"ABC"`
### Example 2:
- Input: `str1 = "ABABAB"`, `str2 = "ABAB"`
- Output: `"AB"`
### Example 3:
- Input: `str1 = "LEET"`, `str2 = "CODE"`
- Output: `""`
### Constraints:
- `1 <= str1.length, str2.length <= 1000`
- `str1` and `str2` consist of English uppercase letters.
## Understanding the Problem:
To solve this problem, we need to find the largest string that, when repeated, can form both `str1` and `str2`. This problem is akin to finding the greatest common divisor (GCD) of two numbers, but instead, we are dealing with strings.
## Initial Thought Process:
We need to determine if the two strings have a common pattern that can repeatedly form both strings. If `str1 + str2` is equal to `str2 + str1`, then there exists a common divisor string. The length of this common string would be the GCD of the lengths of `str1` and `str2`.
## Basic Solution:
The basic approach involves concatenating the strings and checking for the condition `str1 + str2 === str2 + str1`. If this holds true, the solution would be the substring of `str1` up to the length of the GCD of their lengths.
### Code:
```typescript
function gcdOfStringsBasic(str1: string, str2: string): string {
// Helper function to find the greatest common divisor of two numbers
function gcd(a: number, b: number): number {
if (b === 0) {
return a;
}
return gcd(b, a % b);
}
// Check if str1 + str2 is the same as str2 + str1
if (str1 + str2 !== str2 + str1) {
return "";
}
// Find the greatest common divisor of the lengths of str1 and str2
let gcdLength = gcd(str1.length, str2.length);
// Return the substring of str1 or str2 from 0 to gcdLength
return str1.substring(0, gcdLength);
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n + m), where n is the length of `str1` and m is the length of `str2`. The concatenation check takes O(n + m) time, and the GCD computation takes O(log(min(n, m))).
- **Space Complexity:** O(n + m) for the concatenated strings and O(1) for the GCD computation.
### Limitations:
The basic solution is efficient given the problem constraints. It leverages string concatenation and GCD computation to achieve the desired result.
## Optimized Solution:
The basic solution is already quite optimal, but we can ensure that the code is as efficient and clean as possible. We will reuse the GCD computation function and include a more streamlined approach to check for the common divisor.
### Code:
```typescript
function gcdOfStringsOptimized(str1: string, str2: string): string {
// Helper function to find the greatest common divisor of two numbers
function gcd(a: number, b: number): number {
while (b !== 0) {
[a, b] = [b, a % b];
}
return a;
}
// Check if str1 + str2 is the same as str2 + str1
if (str1 + str2 !== str2 + str1) {
return "";
}
// Find the greatest common divisor of the lengths of str1 and str2
let gcdLength = gcd(str1.length, str2.length);
// Return the substring of str1 or str2 from 0 to gcdLength
return str1.substring(0, gcdLength);
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n + m), where n is the length of `str1` and m is the length of `str2`. The concatenation check takes O(n + m) time, and the GCD computation takes O(log(min(n, m))).
- **Space Complexity:** O(1) for the GCD computation, as the concatenation check does not store additional strings.
### Improvements Over Basic Solution:
- The optimized solution uses an iterative approach for the GCD function, which can be more efficient than the recursive approach in some environments.
- It also avoids creating new strings unnecessarily, making it slightly more space efficient.
## Edge Cases and Testing:
### Edge Cases:
1. `str1` is a multiple of `str2`.
2. `str2` is a multiple of `str1`.
3. `str1` and `str2` have no common divisor.
4. `str1` or `str2` is empty.
### Test Cases:
```typescript
console.log(gcdOfStringsBasic("ABCABC", "ABC")); // "ABC"
console.log(gcdOfStringsBasic("ABABAB", "ABAB")); // "AB"
console.log(gcdOfStringsBasic("LEET", "CODE")); // ""
console.log(gcdOfStringsBasic("ABCDEF", "ABC")); // ""
console.log(gcdOfStringsBasic("AAAAAA", "AA")); // "AA"
console.log(gcdOfStringsBasic("AA", "A")); // "A"
console.log(gcdOfStringsOptimized("ABCABC", "ABC")); // "ABC"
console.log(gcdOfStringsOptimized("ABABAB", "ABAB")); // "AB"
console.log(gcdOfStringsOptimized("LEET", "CODE")); // ""
console.log(gcdOfStringsOptimized("ABCDEF", "ABC")); // ""
console.log(gcdOfStringsOptimized("AAAAAA", "AA")); // "AA"
console.log(gcdOfStringsOptimized("AA", "A")); // "A"
```
## General Problem-Solving Strategies:
1. **Understand the Problem:** Carefully read the problem statement to understand the requirements and constraints.
2. **Break Down the Problem:** Identify key operations such as checking concatenations and computing GCD of lengths.
3. **Use Helper Functions:** Implement helper functions like `gcd` to simplify the main solution.
4. **Consider Edge Cases:** Think about different scenarios that might affect the solution, such as when the strings are not divisible or one string is empty.
5. **Start Simple and Optimize:** Begin with a basic solution that works, even if it's not the most efficient. This helps to ensure you understand the problem. Then, look for ways to optimize it.
6. **Optimize for Readability:** Ensure the solution is clean and easy to understand while maintaining efficiency.
7. **Test Thoroughly:** Test your solution with various cases, including edge cases. Ensure that the solution handles all possible inputs correctly.
## Identifying Similar Problems:
1. **String Repetition and Pattern Matching:**
- Problems where you need to find repeating patterns within strings.
- Example: Finding the smallest repeating unit in a string.
2. **Greatest Common Divisor (GCD):**
- Problems involving GCD computations in different contexts.
- Example: Finding the GCD of two numbers or the GCD of lengths of multiple strings.
3. **String Concatenation and Validation:**
- Problems where you need to validate if one string can be formed by concatenating another string multiple times.
- Example: Checking if a string is a repeated substring of another string.
4. **Subsequence and Substring Problems:**
- Problems involving finding common subsequences or substrings between multiple strings.
- Example: Longest common subsequence or longest common substring problems.
## Conclusion:
- The problem of finding the greatest common divisor of two strings can be efficiently solved by leveraging string concatenation and GCD computations.
- Understanding the problem and breaking it down into manageable parts is crucial.
- Testing with various edge cases ensures robustness.
- Recognizing patterns in problems can help apply similar solutions to other challenges.
By practicing such problems and strategies, you can improve your problem-solving skills and be better prepared for various coding challenges. | __zamora__ |
1,918,900 | Session Handling with the PRG pattern and Flashing | In our previous project, returning a view directly from the POST request when validation failed was... | 0 | 2024-07-10T18:23:51 | https://dev.to/ghulam_mujtaba_247/session-handling-with-the-prg-pattern-and-flashing-1jog | webdev, beginners, programming, php | In our previous project, returning a view directly from the POST request when validation failed was not the best approach.
## The Problem
When a user submits a login form with invalid data, the form displays error messages and redirects the user to the login page. However, if the user refreshes the page or navigates away and returns to the login page, the same error messages persist.
## The Solution
To resolve this issue, we can use sessions to store errors and implement the PRG pattern. We can store errors in the `$_SESSION` superglobal variable and update the errors statement in `create.php` as:
```php
$_SESSION['errors'] = $form->errors();
view('session/create.view.php', [ 'errors' => $_SESSION['errors'] ?? [] ]);
```
But even with this change, the problem still persists. To solve this we have to change return statement as :
```php
return redirect ('/login');
```l
It moves the user to login page if any error occurred but don't shows the error to user w
We then flash the `$_SESSION` superglobal variable to destroy the session after a short time:
```php
$_SESSION['_flashed']['errors'] = $form->errors();
```
Now you can notice that the problem is solved but to refactor this code we have to add PRG method in a class
## The Session Class (PRG pattern)
For refactoring, We create a new file named `Core/Session.php` containing a `Session` class that manages user sessions:
```php
<?php
namespace Core;
class Session {
public static function has($key) {
return (bool) static::get($key);
}
public static function put($key, $value) {
$_SESSION[$key] = $value;
}
public static function get($key, $default = null) {
return $_SESSION['_flash'][$key] ?? $_SESSION[$key] ?? $default;
}
public static function flash($key, $value) {
$_SESSION['_flash'][$key] = $value;
}
public static function unflash() {
unset($_SESSION['_flash']);
}
public static function flush() {
$_SESSION = [];
}
public static function destroy() {
static::flush();
session_destroy();
$params = session_get_cookie_params();
setcookie('PHPSESSID', '', time() - 3600, $params['path'], $params['domain'], $params['secure'], $params['httponly']);
}
}
```
1. The `flash` method stores data in the `$_SESSION['_flash']` array, which is used for session flashing.
2. The `get` method checks if there's flashed data in `$_SESSION['_flash']` and returns it. If not, it returns the regular session data or the default value.
3. The `unflash` method unsets the flashed data, making it available only for the next request.
4. The PRG pattern is implemented by storing data in the session using the `put` method, redirecting (e.g., using `return redirect('/login');`), and then retrieving the data in the next request using the `get` method.
By using this Session class, we can implement the PRG pattern and session flashing to manage user sessions and prevent duplicate form submissions, and unwanted error message persistence.
## `has` Method
In this file, `has` method returns a Boolean value indicating whether a key exists in the session:
```php
.
public static function has($key) {
return (bool) static::get($key);
}
```
## Refactoring the Logout Function
In `function.php` file, we refactor the logout function to use the `Session` class:
```php
Session::destroy();
```
## Refactoring the `get` Method
As the project is already working well. But We need to get refactor the `get` method in `Core/Session.php` to consolidate the code into a single statement:
```php
public static function get($key, $default = null) {
return $_SESSION['_flash'][$key] ?? $_SESSION[$key] ?? $default;
}
```
A lot of refactoring is done in our today project to make it better in look ,easy to understand and to increase the performance of the code.
I hope that you have clearly understood it!. | ghulam_mujtaba_247 |
1,918,902 | Share to PWA from mobile | If you have a website that can be installed as a PWA on your mobile device it has also the ability to... | 0 | 2024-07-10T18:35:37 | https://www.koffeinfrei.org/2023/11/19/share-to-pwa-from-mobile/ | webdev, javascript, pwa, mobile | If you have a website that can be installed as a [PWA](https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps) on your mobile device it has also the ability to receive data from the "share to" functionality on mobile phones. Depending on what you're trying to do you don't need to create a native app.
This article shows how I made use of this for [unnote](https://www.unnote.io).
There are 3 things that are needed as part of your application to make this work:
1. Update your manifest to support "share to"
2. Handle the "share to" request in your service worker
3. Handle the shared data in your app
Let's go through each part in some detail.
## 1. Manifest
You need to add a new entry [share_target](https://developer.mozilla.org/en-US/docs/Web/Manifest/share_target) to your `manfest.json`. The following manifest allows any text data and all types of images to be sent to your application.
```json
"share_target": {
"action": "/share-target/",
"method": "POST",
"enctype": "multipart/form-data",
"params": {
"title": "title",
"text": "text",
"url": "url",
"files": [
{
"name": "image",
"accept": ["image/*"]
}
]
}
}
```
1. `action` is the URL that will receive the data. This will be explained in the next chapter about the service worker.
2. `params` represent the different ways the mobile phone sends the data
1. `title` is provided when a document is shared
2. `text` contains the contents of the shared document
3. `url` is provided when a resource with a URL (as e.g. a website) is shared
4. `files` is provded when a binary file is shared. The definition accepts an array of mimetypes that your aplication should accept.
Depending on what data your application should be able to receive you don't need to configure all the `params`. `files` is only needed when you want to support binary data.
## 2. Service Worker
The following is a minimal service worker that intercepts the URL `/share-target/` which was previously configured in the manifest. It then puts the data in the [caches](https://developer.mozilla.org/en-US/docs/Web/API/caches), which is a global [CacheStorage](https://developer.mozilla.org/en-US/docs/Web/API/CacheStorage) in the browser.
```js
self.addEventListener('fetch', (event) => {
if (event.request.url.endsWith('/share-target/') && event.request.method === 'POST') {
return event.respondWith(
(async () => {
const formData = await event.request.formData();
const image = formData.get('image');
const title = formData.get('title');
const text = formData.get('text');
const url = formData.get('url');
const cache = await caches.open('media');
if (image) {
await cache.put('shared-image', new Response(image));
} else {
await cache.put('shared-data', new Response(JSON.stringify({ title, text, url })));
}
return Response.redirect('/#/handle-share-target', 303);
})(),
);
}
});
```
The service worker handles images and text data differently, and uses two separate cache keys. The text data is stored as JSON, while the image is stored as a [Response](https://developer.mozilla.org/en-US/docs/Web/API/Response).
Note that the intercepted request won't make it to your server. The last statement makes a client side redirect to where your application will actually handle the received data.
## 3. Application
The last part is the actual application fetching the data from the cache and doing whatever you want to do with it. The following two functions are helpers to extract the json data and the binary image data from the cache.
```js
export async function getBlob(name) {
const cache = await caches.open('media')
const image = await cache.match(name)
if (image) {
const blob = await image.blob()
await cache.delete(name)
return blob
}
}
export async function getJson(name) {
const cache = await caches.open('media')
const data = await cache.match(name)
if (data) {
const json = await data.json()
await cache.delete(name)
return json
}
}
```
The next part is the application specific part. The following shows how to use the previous functions to retrieve the data.
```js
const blob = await getBlob('shared-image')
```
You could e.g. [convert the blob to an image](https://github.com/koffeinfrei/unnote/blob/ac46bb59a9f8b291ac645e0a6cd6f84f45de25d5/client/src/image.js#L1) or [resize the image](https://github.com/koffeinfrei/unnote/blob/ac46bb59a9f8b291ac645e0a6cd6f84f45de25d5/client/src/image.js#L20).
The last piece of code shows how to extract the properties from the cached JSON.
```js
const { title, text, url } = await getJson('shared-data')
```
## Links
- [unnote's manifest.json](https://github.com/koffeinfrei/unnote/blob/ac46bb59a9f8b291ac645e0a6cd6f84f45de25d5/client/public/manifest.json#L52-L67)
- [unnote's service worker](https://github.com/koffeinfrei/unnote/blob/ac46bb59a9f8b291ac645e0a6cd6f84f45de25d5/client/public/service-worker.js#L2-L22)
- [unnote's data handling](https://github.com/koffeinfrei/unnote/blob/ac46bb59a9f8b291ac645e0a6cd6f84f45de25d5/client/src/NoteEdit.svelte#L82-L94)
- [Handling shared data from other apps (MDN)](https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/How_to/Share_data_between_apps#handling_shared_data_from_other_apps)
- [Web Share Demo](https://github.com/GoogleChrome/samples/blob/gh-pages/web-share/README.md#web-share-demo) | koffeinfrei |
1,918,903 | 18 Projects Announced as part of XRPL Accelerator First Launch Cohort | The XRPL Accelerator - Launch Program is dedicated to nurturing innovation and the development of... | 0 | 2024-07-10T18:35:45 | https://dev.to/ripplexdev/18-projects-announced-as-part-of-xrpl-accelerator-first-launch-cohort-3eb0 | The [XRPL Accelerator - Launch Program](https://xrplaccelerator.org/) is dedicated to nurturing innovation and the development of financial use cases on the XRP Ledger (XRPL). The initiative continues to support entrepreneurs and builders looking to scale their projects on the XRP Ledger and we are excited to announce the latest cohort of projects selected for the prestigious Launch Program.
As part of our commitment to fostering innovation and development on the XRP Ledger, we have chosen a diverse group of pioneering projects that are set to revolutionize various sectors through the power of blockchain technology. With over 150 applications received, project focuses range from DeFi, DID, Infra, RWA and even verifiable credentials. These projects will receive significant support, including up to $100,000 in grant funding, mentorship from industry experts, and invaluable networking opportunities. The recent XRPL Apex 2024 event already saw some of the teams connect with the broader community and share the impressive work they are doing on the network.
Let’s take a close look at some of the groundbreaking projects selected for the latest XRPL Accelerator Launch Program:
## Decentralized Finance (DeFi)
**Alt DRX**
ALT.SQFT offers a unique approach to real estate investment by tokenizing square footage into tradeable digital assets called Property Tokens, which represent a proportional financial value in a specific property managed by a Special Purpose Vehicle (SPV). Investors can buy and sell these tokens on the Alt DRX Platform, allowing for dynamic market participation and liquidity in real estate investments. ALT.SQFT tokens offer the potential for income through interest payments and profit from property sales, but they also enable investors to engage in a transparent, efficient real estate market, receiving regular updates on valuation and the opportunity to trade at market-driven prices.
**Moai Finance**
Moai Finance is developing a multi-chain decentralized exchange (DEX) and cross-chain DEX aggregator to improve asset liquidity and utility within the XRP Ledger (XRPL) community. Their flagship product is an automated market maker (AMM)-based decentralized protocol that enables seamless swapping between assets on different blockchains. They want to expand their product to support XRPL Mainnet and XRPL EVM sidechain to simplify the liquidity provision and asset swap mechanisms for users.
**Propto**
Propto, a decentralized exchange and tokenization platform, enables commercial property owners to fractionalize and list their assets on-chain. The product allows investors with a small amount of capital to participate in the commercial real estate market. Propto's tokenization and trading functionalities utilize the XRPL's native features, such as trustlines and the DEX, to facilitate real estate token transactions.
**MC² Finance**
MC² Finance is revolutionizing the digital asset fund marketplace with its advanced infrastructure and application layer, designed to support a thriving multi-sided marketplace. The platform aims to foster a dynamic community where crypto traders, financial backers, and the community can collaborate, enhancing both learning and earning opportunities. By addressing the current fragmented market where trading strategies are manually recreated across different platforms with varying fees, MC² Finance provides a streamlined, community-driven environment that supports credible and profitable trading strategies, while reducing risk and enhancing transparency.
**Kodelab**
The Kodelab HELOC offers instant access to flexible credit/liquidity secured against properties or other illiquid assets via public and private blockchains, in the form of Central Bank Digital Currencies (CBDC) or stablecoin. Users can draw down and repay funds up to a certain Loan-to-Value (LTV), empowering and providing users with flexible credit options. The accompanying tokenization stack, formed from some ‘world-first’ legal engineering developed in conjunction with DLA Piper and Truva Corp, allows for the on-chain NFT collateral to be composed of actual property ownership rights or mortgage rights, boosting security for lenders, whilst borrowers are left with simplified and enhanced accessibility to revolving credit compared to traditional fixed-term loans.
**Ryzer**
Ryzer is a fintech startup that aims to revolutionize real estate investment through tokenization. They offer a platform for fractional ownership of real estate, allowing users to invest small amounts, benefit from simplified processes, and achieve greater liquidity and diversification. Ryzer provides a tokenized platform where users can buy, sell, hold, stake, lend, and borrow against real estate assets, in order to enhance the ease and flexibility of real estate investments.
**XPMarket**
XPmarket is designing a user-centric community to unleash the full potential of the XRP Ledger. On-chain data paired with big data analysis are wrapped into a user-friendly environment, allowing a detailed overview of the XRPL community. A wide range of key infrastructure elements are being directly integrated into XPmarket that are both familiar for a novice blockchain user and advanced enough for the most sophisticated members. As a result, XPmarket aims to put all of the XRPL's capabilities at the community's fingertip.
**Zoth**
Zoth introduces an institutional-grade fixed income marketplace, facilitating unprecedented access to a diverse range of high-yield, secure fixed income opportunities using stablecoins. This platform bridges traditional finance and on-chain finance, accelerating asset and capital flow by leveraging efficient tokenization mechanisms for real-world assets (RWAs), enhancing liquidity, and promoting financial inclusion. Complying with stringent regulatory standards across multiple jurisdictions, Zoth ensures that investments in top-tier assets like trade finance receivables, sovereign government bonds, and corporate credit are secure and transparent, promoting a seamless integration of liquidity between TradFi and DeFi.
## Infrastructure
**ChainsAtlas**
ChainsAtlas is revolutionizing the way developers use their favorite Web2 programming languages on blockchain platforms by introducing an innovative Visual Studio Code extension that ensures seamless integration and universal compatibility. This tool allows the execution of traditional programming languages like C, Python, and JavaScript across multiple blockchains without the need for code modification, supporting both EVM and non-EVM chains. With ChainsAtlas, developers can achieve true horizontal scaling through parallel transaction processing, while maintaining consistent state synchronization across different blockchains, thus enhancing the efficiency and scalability of decentralized applications.
**Evermore**
Evermore is a start-up creating an infrastructure for the circular economy by tokenizing physical consumer products, which enables trustless and efficient resale while unlocking customer data and resale royalties for brands. Their platform supports a marketplace for peer-to-peer transactions of pre-loved items, facilitating direct engagement between brands and resale customers through digital product passports. The start-up has gained traction through partnerships and public beta launches, positioning itself at the intersection of sustainable fashion, online resale growth, and Web3 technology innovations.
**Renora Technologies**
Renora is a non-custodial, SaaS-based robo-advisory platform that provides passive and systematic investment strategies in digital assets. The platform features a proprietary Dips Dollar Cost Averaging (DDCA) protocol, which operates on exchanges and blockchains to help users systematically accumulate assets, generate yield, and manage liquidation and spending. Renora's technology automates the entire investment process, focusing on low costs, high liquidity, and ease of use, while also enabling self-custody and self-governance of assets.
**Sorcel**
Sorcel empowers Web3 enthusiasts and no-code users to build decentralized applications (dApps) by token-gating parts of their websites and integrating essential blockchain functionalities, such as e-commerce and voting, without needing technical expertise. Users can create exclusive experiences and private sections of their websites, accessible only to token holders, and can also offer non-transferable rewards and discounts. Additionally, Sorcel supports integration with major payment solutions like Stripe and Coinbase Commerce, alongside enabling token-based voting modules, making it a comprehensive tool for anyone looking to leverage blockchain technology in their digital spaces.
## Stablecoin
**VNX**
VNX Commodities is Europe's first regulated tokenization platform and stablecoin issuer, registered with the Liechtenstein FMA under the TT Token Providers and Services Act (TVTG). In 2021 VNX launched VNXAU, a multichain token backed by physical gold, later VNX launched two fully backed stablecoins: VEUR and VCHF. With this project, VNX aims to expand operations to the XRPL ledger by issuing VNX tokens on the XRPL.
## Payments
**meCash**
meCash is a financial technology startup that facilitates cross-border payments for small and medium-sized enterprises (SMEs) using blockchain technology. The company offers a multi-currency wallet that allows businesses to store value, hedge against currency fluctuations, and make international payments quickly and securely. Through its platform, meCash aims to simplify international trade for businesses by reducing the costs and inefficiencies typically associated with traditional payment channels.
**Breezepay**
Breezepay integrates with both online stores and Point-of-Sale systems, allowing users to seamlessly pay for goods and services with their cryptocurrency at the click of a button. Using the XRP Ledger, customers can unlock the value of their XRP-based assets by simply connecting their wallet to Breezepay and paying for everyday goods, similar to a card transaction.
## Digital Identity (DID)
**SELF**
Self revolutionizes digital interaction and trust-building by ensuring that every user's identity is verified through native biometrics and anchored to their human identity, not just a proxy. This platform leverages end-to-end encrypted communications combined with ID-anchored calling and messaging, allowing true verification of all parties involved, significantly reducing the risk of impersonation and fraud. By integrating digital identity, encrypted communication, and smart ticketing, Self not only enhances regulatory compliance and convenience but also drives higher conversion rates and secures operations across various sectors from online retail to hospitality and beyond, making daily activities like traveling, shopping, and voting safer and more seamless.
## Data Verifiable Credentials
**Filedgr**
Filedgr is revolutionizing business transparency with its Digital Certificates and Data Twin Data Hub, ensuring that companies can provide clear, secure, and verifiable information throughout the entire lifecycle of their products. By leveraging blockchain technology, Filedgr enhances credibility, operational efficiency, and consumer trust by tackling greenwashing and ensuring data authenticity from manufacturing through ownership and beyond. This platform not only supports sustainable business practices but also serves as a robust tool for risk minimization, efficiency improvement, and strengthening brand integrity, making it a vital asset for integrity-driven companies in today's market.
## Social Finance (SocialFi)
**Beoble**
Beoble provides a secure and user-owned messaging community, enabling wallet-to-wallet communication through an end-to-end encrypted platform. This communication infrastructure not only supports most major wallets but also offers a seamless integration toolkit for Dapps, ensuring no compromise on privacy, security, or user experience. Additionally, Beoble enhances the social and messaging functionalities of Web 3.0 applications, offering modular APIs and SDKs that empower native dApps with social profiles, decentralized identity (DID), and customer support tools, thereby fostering community growth and increasing user engagement and retention.
The XRPL Accelerator is dedicated to empowering and supporting innovative projects that contribute to the growth and development of the XRPL community. These projects, spanning diverse sectors and applications, highlight the transformative potential of blockchain technology.
To learn more about the XRPL Accelerator and stay updated on upcoming opportunities, visit xrplaccelerator.org.
Stay tuned for more exciting updates as these projects progress and bring their groundbreaking solutions to life.
| sopvictori | |
1,918,907 | HIRE A HACKER | The cryptocurrency market has seen a surge in demand for recovery assistance services. As more people... | 0 | 2024-07-10T18:44:06 | https://dev.to/evelyn_amelia_c116fc28b42/hire-a-hacker-4h1n | The cryptocurrency market has seen a surge in demand for recovery assistance services. As more people enter the exciting yet unpredictable world of cryptocurrency, the need for specialized help in recovering lost investments has become increasingly apparent. And that's where INTELLIGENCE CYBER WIZARD comes into play - your knight in shining code, dedicated to helping you regain what's rightfully yours. So, who exactly is this INTELLIGENCE CYBER WIZARD, you ask? Well, they're a team of experienced professionals who have mastered the art of recovering lost investments in the cryptocurrency realm. With their extensive knowledge and expertise, they've helped countless individuals like us reclaim what they've lost. Reach out to INTELLIGENCE CYBER WIZARD.
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1,918,909 | What is the most direct cause of customer loyalty | This Blog was Originally Posted to Churnfree Blog We all know various factors to retain customers but... | 0 | 2024-07-10T18:49:50 | https://churnfree.com/blog/what-is-the-most-direct-cause-of-customer-loyalty/ | churnfree, saaschurn, customerloyalty, customerchurn | **This Blog was Originally Posted to [Churnfree Blog](https://churnfree.com/blog/what-is-the-most-direct-cause-of-customer-loyalty/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution)**
We all know various factors to retain customers but what is the most direct cause of customer loyalty? What is the one main thing that you can’t miss in order to make a customer loyal to your product?
The most direct cause of customer loyalty is a good product experience. You need to keep up with the trends and needs of the market and constantly improve your product. Low quality product service is on of the [causes of customer churn](https://churnfree.com/blog/analyze-customer-churn-causes/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution).
But is it only the product features that matter for a good product experience? No, there are a lot more factors that make a good product experience.
A good product experience means that using the product feels enjoyable, easy, and fulfilling. It starts with the product itself meeting your expectations and functioning well. Beyond functionality, it involves how the product makes you feel—whether it simplifies your tasks, enhances your life, or brings you joy. A good product experience also includes the entire journey from buying it to getting support if needed. It’s about feeling satisfied and happy with your choice, knowing that the product enhances your daily life in meaningful ways.
In this blog, we will discuss the factors that combine to make a good product experience. So, let’s find the key drivers behind why consumers choose to stay loyal to a brand. Furthermore, we will discuss other factors that also help in [customer loyalty](https://churnfree.com/blog/customer-loyalty/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution).
[Client Loyalty](https://churnfree.com/blog/customer-loyalty/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution) is not limited to only customer retention but also about establishing a brand so great that consumers can’t help but return. Figuring out the most direct cause of customer loyalty exactly can be tricky because so many things affect their behavior. But it’s super important because loyal customers usually make up a significant portion of a company’s income and are key to spreading the word about the brand.
Let’s also discuss the factors that influence a good product experience.
**What is the most direct cause of Customer Loyalty?**
The most direct cause of Customer loyalty is a good product experience. A good product experience includes a good UI/UX experience, quality features, fast speed, continuous product improvements, transparent pricing and an excellent customer experience.
**What Factors Influence a Good Product Experience**
Garvin’s eight dimensions of product quality that are performance, features, reliability, conformance, durability, serviceability, aesthetics, and perceived quality, directly impact customer satisfaction, which in turn influences loyalty. High-quality products ensure customer satisfaction, which is essential for maintaining loyalty, especially for SaaS industry, where these factors are closely scrutinized. The following factors are crucial for a good product experience:
**User-Centric Design**
User-centric design is the key to a great SaaS product. Making complex features easy and enjoyable to use is your main attraction point to customers. By focusing on user’s needs and behaviors, the product creates a smooth and natural interaction.
With an intuitive UI, user can navigate the platform effortlessly, even if they’re new to it. This will also save users from understanding your product via tutorials, hence saving them time. Customers prefer easy setups and a well directed UI/UX on signing up to a product. This also means that you will require a lot less marketing efforts too. This design approach also includes accessibility, ensuring that the product is easy to use for everyone, regardless of ability.
Other than building a good UI/UX, you need to regularly improve the user experience based on [customer feedback](https://churnfree.com/blog/customer-feedback-for-growth-retention-success/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution). By adapting to user’s changing needs, you will keep the customers satisfied and loyal.
In a crowded market, a user-centric design not only sets a product apart but also builds a loyal user base that values and trusts the service, ensuring long-term success.
**Feature Set and Customization**
The features of the product set and customization options are crucial for a top-notch SaaS product, ensuring it fits customer’s specific needs and preferences.
Strong core features mean the essential tools work perfectly together, so user can rely on them every day. Customizable features lets them tweak the product to suit each user’s unique requirements, making it more useful and relevant to them. Customization can be adjusting the interface, changing settings, or adding specific tools, these options help them get the most out of the product.
Seamless integrations with other popular tools and platforms make it even more versatile. By offering a wide range of features and robust customization, the product becomes more valuable, boosting your satisfaction and loyalty and standing out in a competitive market.
**Performance**
The performance of a product determines your product quality. A top-notch SaaS product must ensure that everything runs smoothly and quickly. Fast load times and responsiveness of the product helps user stay productive and focused.
Scalability is also important, meaning your service can handle more users and data as users grow without slowing down. By consistently delivering high performance, makes the user experience seamless and efficient, boosting customer satisfaction and loyalty. In a competitive market, exceptional performance not only distinguishes the product but also builds a strong, dependable reputation, securing long-term success.
**Continuous Product Improvement**
Continuous improvement is key to a successful SaaS product, ensuring it always meets customer’s evolving needs. Regular updates mean the product constantly gets better, adding new features and enhancing existing ones. By actively collecting and incorporating customer feedback through cancel flow, you can make sure your product stays aligned with what user need and want. This commitment to improvement shows that the product is not static but grows with the customer, making it more reliable and effective over time.
You need to keep innovating your product with latest trends and technologies, like introducting AI based features to your product in 2024. For a content or social media software, you can add features that give AI generated captions.
**Professional and Easy Onboarding**
Easy and professional onboarding helps build customer loyalty by making a great first impression and ensuring customers feel supported from the start. When customers find it simple to get started with your product or service, they are more likely to have a positive experience and feel confident using it.
Professional onboarding, which includes clear instructions, helpful resources, and responsive support, shows customers that you care about their success. This creates a strong foundation of trust and satisfaction, making them more likely to stick with your brand and continue using your offerings in the long term.
Offering training resources and in-app guides further simplifies the onboarding process. Training resources include detailed guides, helpful FAQs and video tutorials. You can also include personalized training sessions for your new-in customers. Training sessions increase the trust of customer in your product as they allow them ask questions and take advice. These sessions might also interest users in upgraded features of the product as you give them deeper insights of the product.
Along with this, In-app guides and tours are particularly useful for new features and updates navigation. Integrating them at the right time when user needs it with timely tips and tricks will help your product grow and enhance natural learning of product.
This initial positive interaction helps build trust and shows customers that your company cares about their success. As a result, customers are more likely to continue using your product, recommend it to others, and remain loyal to your brand.
**Pricing**
Pricing plays a big role in customer loyalty by affecting how customers see the value and affordability of your product or service. When customers think they’re getting good quality for a fair price, they’re more likely to stay loyal.
Affordable prices make your product accessible to more people, encouraging them to keep buying from you instead of looking elsewhere. Transparent and clear pricing builds trust, as customers appreciate not being surprised by hidden fees.
Keeping prices stable also helps build trust, as customers can plan their budgets without worrying about sudden increases. Offering discounts, promotions, and loyalty rewards makes customers feel valued and encourages repeat purchases. Flexible pricing options, like different plans or pay-as-you-go models, cater to various needs and budgets, helping to retain customers. By setting fair and transparent prices, you enhance customer satisfaction, build trust, and encourage long-term loyalty to your brand.
A well-structured pricing model not only attracts new users but also retains existing ones by continuously delivering value and accommodating growth. By ensuring the pricing is fair, flexible, and transparent, the product can build a loyal customer base and stand out in the competitive SaaS market.
**Customer service**
Friendly and helpful service creates positive experiences, making customers feel good about your brand and more likely to return. Excellent service builds trust because customers know they can rely on your team to address their concerns and solve their problems. Effective problem resolution shows you care about their satisfaction and quickly addressing issues prevents frustration. Personalized service makes customers feel special and appreciated, fostering a deeper connection. Listening to feedback and making improvements based on their suggestions shows you value their opinions. Providing consistent service across all touchpoints ensures a reliable experience, which customers appreciate. By offering friendly, reliable, and personalized service, you create positive experiences, build trust, and show customers that their satisfaction is your top priority, encouraging them to stay loyal to your brand.
This trust is crucial, as evidenced by studies showing that 83% of customers cite trust as a primary reason for their brand loyalty. Businesses that understand and nurture these dynamics can anticipate more stable revenue streams and lower marketing costs.
**Avoid These Common Pitfalls**
**- Overlooking Customer Needs**
Ignoring what your customers want and need can hurt your business. If customers feel their feedback is ignored, they may lose interest and stop engaging with your products or services. This can lead to customers leaving for competitors who listen better. Plus, by neglecting customer feedback, you miss out on valuable insights that could improve your offerings and customer experience.
**- Ignoring Customer Feedback**
Not paying attention to customer feedback can damage your business’s reputation and hinder growth. If you don’t address their concerns, customers may have more negative experiences and turn to competitors who care. Ignoring feedback can also lead to bad reviews and complaints spreading, seriously harming your reputation. It’s essential to listen to and act on customer feedback to understand and fix their issues.
- **Failing to Reward Loyalty**
A loyalty program can backfire if it’s not done right. [Common mistakes](https://churnfree.com/blog/mistakes-in-customer-saas-implementations/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution) include making rules too complicated and offering rewards that don’t match what customers want. To avoid this, make sure your loyalty program is simple, clear, and provides real value. Keep your customers informed about updates and focus on personalization to keep them engaged. Regularly monitor and improve your program to ensure it meets customer needs and encourages them to stay loyal to your brand.
**Final Thoughts**
Securing customer loyalty can be challenging, but having loyal customers is incredibly rewarding. Businesses can improve their customer loyalty strategies by using the helpful resources and insights on [Churnfree’s blog](https://churnfree.com/blog/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution). These resources help companies understand and manage customer behavior, helping them winback customers. Here are some additional guides that you might be interested in:
📜 [Churn rate benchmarks](https://churnfree.com/blog/b2b-saas-churn-rate-benchmarks/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution)
📜 [How to reduce churn SaaS](https://churnfree.com/blog/how-to-reduce-churn-saas/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution)
📜 [Customer Retention Strategies](https://churnfree.com/blog/customer-retention-strategies/?utm_source=Dev.to&utm_medium=referral&utm_campaign=Content_distribution)
**FAQs**
**- What is the main cause of customer loyalty?**
The main cause of customer loyalty is consistently meeting customer’s expectations and good product experience. This includes high-quality products, excellent customer service, and rewarding loyalty programs. Trust and reliability make customers feel valued and confident in their choice. When customers feel understood and appreciated, they keep coming back.
**- What is the biggest driver of customer loyalty?**
The biggest driver of customer loyalty is consistently providing a great customer experience, which includes friendly service, reliable products, and personalized touches. Making things easy and offering good value also play big roles. Handling problems well and having good rewards programs can boost loyalty even more.
**- What is the most direct cause of customer loyalty in the food industry?**
The most direct cause of customer loyalty in the food industry is consistently delivering high-quality, delicious food. This core factor is complemented by excellent customer service, a pleasant dining environment, and value for money. | churnfree |
1,918,911 | How to Find Salesforce Certified Tableau CRM and Einstein Discovery Consultant | Why Do You Need a Salesforce Certified Tableau CRM and Einstein Discovery Consultant? AI... | 0 | 2024-07-10T18:52:15 | https://www.sfapps.info/salesforce-certified-tableau-and-einstein-consultant/ | blog, howto | ---
title: How to Find Salesforce Certified Tableau CRM and Einstein Discovery Consultant
published: true
date: 2024-07-10 18:46:25 UTC
tags: Blog,HowTo
canonical_url: https://www.sfapps.info/salesforce-certified-tableau-and-einstein-consultant/
---
## Why Do You Need a Salesforce Certified Tableau CRM and Einstein Discovery Consultant?
AI is becoming more prevalent in our lives, and businesses are increasingly using advanced analytics and artificial intelligence to stay competitive. Salesforce, a leader in cloud-based solutions, provides powerful tools like Tableau CRM and Einstein Discovery to help organizations make the most of their data. However, using these sophisticated platforms effectively can be tough without the right expertise. That’s where a Salesforce Certified Tableau CRM and Einstein Discovery Consultant comes in.
### Insight:
A Salesforce Certified Tableau CRM and Einstein Discovery Consultant is a professional with specialized knowledge in implementing, configuring, and optimizing Tableau CRM and Einstein Discovery solutions. These consultants are well-versed in data analytics, AI-driven insights, and Salesforce’s ecosystem, making them invaluable assets for businesses aiming to make data-driven decisions and automate processes.
### **Why Certification Matters**
Certification ensures that a consultant has the required skills and knowledge to effectively leverage Tableau CRM and Einstein Discovery. [Salesforce certifications](https://www.sfapps.info/how-hard-is-salesforce-admin-certification/ "How Hard Is Salesforce Admin Certification?") are rigorous, covering a wide range of topics from data integration to AI model building. By hiring a certified consultant, you can be confident that they have met Salesforce’s high standards and are capable of delivering top-notch solutions.
- **Expertise in Advanced Analytics and AI** : Certified consultants bring a deep understanding of Tableau CRM’s capabilities and Einstein Discovery’s AI-driven insights. This expertise enables them to create custom dashboards, predictive models, and actionable insights tailored to your business needs.
- **Enhanced Decision-Making** : With the help of a certified consultant, businesses can transform raw data into meaningful insights. This leads to more informed decisions, improved operational efficiency, and better strategic planning.
- **Optimized Implementation** : A certified consultant ensures that Tableau CRM and Einstein Discovery are implemented correctly, avoiding common pitfalls and ensuring the system is set up for optimal performance.
- **Customized Solutions** : Every business is unique, and a certified consultant can tailor the solutions to meet specific business requirements, ensuring maximum ROI on your Salesforce investment.
- **Continuous Improvement** : The role of a consultant doesn’t end with implementation. They provide ongoing support, updates, and training to ensure that your team can fully utilize the tools and keep up with the latest advancements in the field.
### The Growing Demand for Salesforce Certified Tableau CRM and Einstein Discovery Consultants
The demand for Salesforce Certified Tableau CRM and Einstein Discovery Consultants is on the rise as more organizations recognize the importance of data analytics and AI in driving business success. Whether you are looking to enhance your customer insights, optimize sales forecasts, or streamline operations, having a certified consultant on your team can make a significant difference.
## How to Choose the Right Salesforce Certified Tableau CRM and Einstein Discovery Consultant
Finding the right Salesforce Certified Tableau CRM and Einstein Discovery Consultant can feel overwhelming due to the specialized skills required. By following a clear approach, you can identify and select the best consultant for your business. Here’s how:
### Define Your Requirements
- Clarify your business goals and objectives.
- Identify the challenges that require advanced analytics and AI solutions.
- Determine your budget for hiring a consultant.
- Set a timeline for the implementation.
Having well-defined requirements helps you communicate your needs effectively and assess potential consultants more accurately.
### Look for Certified Professionals
- Ensure the consultants you consider are certified by Salesforce.
- Certifications to look for include – [Salesforce Certified Tableau CRM and Einstein Discovery Consultant](https://trailhead.salesforce.com/en/credentials/tableaucrmandeinsteindiscoveryconsultant)
These certifications indicate the consultant’s expertise and proficiency.
### Evaluate Experience and Expertise
- Seek consultants with a proven track record of implementing Tableau CRM and Einstein Discovery solutions.
- Inquire about their previous projects and clients, specific use cases, and the outcomes they achieved.
- Request case studies or references to understand their capabilities better.
### Check for Industry Knowledge
- Choose a consultant with industry-specific knowledge for more relevant solutions.
- They should understand the unique challenges and opportunities within your sector and tailor their approach accordingly.
### Assess Technical Skills
Ensure the [Salesforce consultant](https://www.sfapps.info/salesforce-consulting-services/) is proficient in the following:
- Data integration and ETL processes
- Creating and managing Tableau CRM dashboards and reports
- Building and optimizing Einstein Discovery models
- Implementing predictive analytics and AI solutions
Consider asking for a demonstration or sample project to showcase their technical skills.
### Evaluate Communication and Collaboration
- The consultant should communicate complex technical concepts clearly and work well with your team.
- Pay attention to their communication style, responsiveness, listening skills, and approach to collaboration.
### Consider Cultural Fit
- A consultant who aligns with your company culture is likely to be more effective.
- Consider if they share your company’s values, are adaptable to feedback, and have a proactive mindset.
### Review Testimonials and Feedback
- Look for testimonials and feedback from previous clients to gain insights into the consultant’s performance, reliability, and professionalism.
- Online reviews, case studies, and references can be helpful.
### Discuss Pricing and Contracts
- Ensure the consultant’s fees align with your budget and that there are clear terms regarding deliverables, timelines, and payment schedules.
- A detailed contract helps avoid misunderstandings later.
### Start with a Small Project
- If possible, start with a small project or pilot phase to evaluate the consultant’s capabilities and working style before committing to larger projects.
By following these steps, you can find a Salesforce Certified Tableau CRM and Einstein Discovery Consultant who meets your business needs and helps you achieve your goals.
Ready to hire your Salesforce Certified Tableau CRM and Einstein Discovery Consultant?
Get in touch with our parent company!
[Explore More](https://mobilunity.com/tech/hire-salesforce-developers/)
## Cost of Hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant
When you’re planning to integrate advanced analytics and AI into your business, it’s important to understand the cost of hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant. Here’s a detailed breakdown based on the latest data.
### Salesforce Certified Tableau CRM and Einstein Discovery Consultant **Hourly Rates**
The hourly rates for Salesforce consultants can vary:
- **Total Pay Range** : According to [Glassdoor](https://www.glassdoor.com/Hourly-Pay/Salesforce-Consultant-Hourly-Pay-E11159_D_KO11,21.htm) and [Salesforce Talent Market Changes 2024](https://www.sfapps.info/salesforce-talent-market-changes/), the estimated total pay for a Salesforce Consultant is between $51 and $74 per hour. This includes both base salary and additional compensation like bonuses or commissions.
- **Median Pay** : The median pay is about $61 per hour.
- **Base Pay** : The average base pay is around $55 per hour, typically ranging from $46 to $66 per hour.
- **Additional Pay** : Additional compensation averages about $6 per hour, ranging from $4 to $8 per hour.
### Project-Based Fees
Project costs can vary depending on the complexity and scope:
- **Small Projects** : Costs for smaller projects might range from $10,000 to $50,000. These projects usually involve straightforward integrations and basic dashboard setups. For example, a consultant might help you enhance your [Tableau app review](https://www.sfapps.info/tableau-app-review/), providing customizations and insights tailored to your needs.
- **Medium to Large Projects** : More complex projects can cost between $50,000 and $200,000 or more. These often include advanced data modeling, extensive customization, comprehensive training, and ongoing support. Implementing [Einstein forecasting Salesforce](https://www.sfapps.info/10-salesforce-einstein-faqs/)features for sales predictions is an example of a more complex project.
### Employing Full-Time Salesforce Consultant
If you’re considering hiring a consultant full-time, here’s what you can expect:
- **Annual Salaries** : According to [Glassdoor](https://www.glassdoor.com/Salaries/salesforce-consultant-salary-SRCH_KO0,21.htm), the average salary for a Salesforce Consultant in the US is around $91,000 per year, with salaries ranging from $65,000 to over $130,000 depending on experience and location. Those with specialized skills in Tableau CRM and Einstein Discovery can command higher salaries.
### Additional Considerations
- **Location** : Consultant rates can be higher in areas with a high cost of living or where there is a high demand for skilled professionals.
- **Certifications and Specializations** : Consultants with additional certifications, like Salesforce Certified Einstein Analytics and Discovery Consultant, or those with specific industry experience, can command higher fees. Hiring a[Salesforce certified Data Cloud consultant](https://www.sfapps.info/why-hire-salesforce-data-cloud-consultant/) can significantly enhance your data integration and analytics capabilities.
The cost of hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant varies depending on experience, certifications, project scope, and location. By understanding these factors, you can budget effectively and find the right consultant to meet your analytics and AI needs.
Looking to hire Salesforce Certified Tableau CRM and Einstein Discovery Consultant?
Request a consultant from our parent company!
[Explore More](https://mobilunity.com/tech/hire-salesforce-developers/)
[](https://www.sfapps.info/wp-content/uploads/2024/05/banner-2-icon.svg)
## Top 10 FAQs About Hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant
When considering the integration of advanced analytics and AI into your business operations, it’s natural to have questions. Here are the top 10 frequently asked questions about hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant, along with detailed answers to help you make an informed decision.
### What does a Salesforce Certified Tableau CRM and Einstein Discovery Consultant do?
A Salesforce Certified Tableau CRM and Einstein Discovery Consultant specializes in implementing and optimizing Tableau CRM and Einstein Discovery within the Salesforce ecosystem. They design custom dashboards, develop predictive models, and provide actionable insights to help businesses make data-driven decisions. Their role includes data integration, AI model building, and continuous optimization of analytics solutions.
### 2. Why should I hire a Salesforce Certified Tableau CRM and Einstein Discovery Consultant?
Hiring a certified consultant ensures that you are working with a professional who has undergone rigorous training and has proven expertise in Salesforce’s analytics tools. They bring specialized skills to your project, ensuring accurate data integration, insightful analytics, and effective AI-driven decision-making. This expertise is crucial for maximizing the value of your investment in Salesforce’s analytics solutions.
### 3. How can a Salesforce AI consultant help my business?
A Salesforce AI consultant can help your business by leveraging AI capabilities within the Salesforce ecosystem to improve operational efficiency, enhance customer insights, and optimize decision-making processes. They implement predictive analytics, automate workflows, and provide customized AI solutions tailored to your specific business needs.
### 4. What qualifications should I look for in a Salesforce Einstein consultant?
When hiring a Salesforce Einstein consultant, look for certifications such as Salesforce Certified Tableau CRM and Einstein Discovery Consultant, and Salesforce Certified Einstein Analytics and Discovery Consultant. Additionally, evaluate their experience, technical skills, and industry-specific knowledge. Proven expertise in data integration, dashboard creation, AI model building, and project management are essential qualifications.
### 5. How does Salesforce Einstein analytics consulting differ from traditional analytics consulting?
Salesforce Einstein analytics consulting focuses on leveraging AI-driven insights and advanced analytics within the Salesforce platform. Unlike traditional analytics consulting, which may rely on basic data analysis and reporting, Einstein analytics consulting integrates AI to provide predictive and prescriptive insights, automate decision-making, and deliver more sophisticated data visualizations and recommendations.
### 6. Can a Salesforce Certified Tableau CRM and Einstein Discovery Consultant work with my existing data systems?
Yes, a Salesforce Certified Tableau CRM and Einstein Discovery Consultant can integrate Tableau CRM and Einstein Discovery with your existing data systems. They have the expertise to connect various data sources, ensuring seamless data flow and accurate analytics. This integration allows you to leverage your existing data infrastructure while enhancing it with advanced analytics and AI capabilities.
### 7. What is the cost of hiring a Salesforce Einstein analytics consultant?
The cost of hiring a Salesforce Einstein analytics and discovery consultant can vary based on factors such as the consultant’s experience, the scope of the project, and the complexity of your business needs. It is essential to discuss your budget and project requirements upfront to get a clear understanding of the costs involved. Investing in a certified and experienced consultant can provide significant long-term value through improved analytics and decision-making.
### 8. How do I measure the success of Salesforce Einstein consulting?
The success of Salesforce Einstein AI Cloud consulting can be measured through various key performance indicators (KPIs), including:
- Improved accuracy of predictive models
- Enhanced decision-making processes
- Increased operational efficiency
- Higher ROI from analytics investments
- User satisfaction and adoption rates
Regularly reviewing these KPIs and working closely with your consultant to track progress will help ensure that your analytics initiatives are successful.
### 9. What industries benefit most from Salesforce Einstein analytics consulting?
Salesforce Einstein analytics consulting can benefit a wide range of industries, including finance, healthcare, retail, manufacturing, and technology. Any industry that relies on data-driven decision-making can leverage the advanced analytics and AI capabilities of Salesforce Einstein to gain competitive advantages, optimize operations, and enhance customer experiences.
### 10. How can I ensure a successful partnership with a Salesforce Tableau CRM and Einstein Discovery consultant?
To ensure a successful partnership, start by clearly defining your business goals and expectations. Maintain open and regular communication with your consultant, provide timely feedback, and be prepared to collaborate closely. Establishing a detailed project plan, setting measurable objectives, and fostering a collaborative working relationship will help you achieve the desired outcomes from your analytics initiatives.
## Wrapping Up
Hiring a Salesforce Certified Tableau CRM and Einstein Discovery Consultant can be a game-changer for your business. These experts bring a wealth of knowledge and experience to help you turn raw data into valuable insights, streamline decision-making processes, and create customized solutions that fit your specific needs. With their help, you can ensure that your Salesforce tools are set up and running optimally, providing you with continuous support and keeping you up-to-date with the latest advancements.
The costs associated with hiring these consultants can vary. Typically, hourly rates range from $51 to $74, while project-based fees for smaller projects can be between $10,000 and $50,000. More complex projects can run from $50,000 to $200,000 or more. If you’re looking at full-time employment, salaries generally range from $65,000 to over $130,000 a year, depending on experience and location.
Choosing the right consultant involves a few key steps: clearly defining your business goals, ensuring the consultant is properly certified, evaluating their experience and technical skills, and considering how well they fit with your company culture. Starting with a smaller project can be a great way to see how they work before making a larger commitment.
The post [How to Find Salesforce Certified Tableau CRM and Einstein Discovery Consultant](https://www.sfapps.info/salesforce-certified-tableau-and-einstein-consultant/) first appeared on [Salesforce Apps](https://www.sfapps.info). | doriansabitov |
1,918,912 | HIRE A HACKER | The cryptocurrency market has seen a surge in demand for recovery assistance services. As more people... | 0 | 2024-07-10T18:54:49 | https://dev.to/evelyn_amelia_c116fc28b42/hire-a-hacker-353o | The cryptocurrency market has seen a surge in demand for recovery assistance services. As more people enter the exciting yet unpredictable world of cryptocurrency, the need for specialized help in recovering lost investments has become increasingly apparent. And that's where INTELLIGENCE CYBER WIZARD comes into play - your knight in shining code, dedicated to helping you regain what's rightfully yours. So, who exactly is this INTELLIGENCE CYBER WIZARD, you ask? Well, they're a team of experienced professionals who have mastered the art of recovering lost investments in the cryptocurrency realm. With their extensive knowledge and expertise, they've helped countless individuals like us reclaim what they've lost. Reach out to INTELLIGENCE CYBER WIZARD.
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1,918,913 | What’s New in .NET 9 Preview 6: Comprehensive Overview | On July 9th, 2024, Microsoft released .NET 9 Preview 6, featuring significant updates and... | 0 | 2024-07-10T18:59:43 | https://dev.to/3a5abi/whats-new-in-net-9-preview-6-comprehensive-overview-5b9f | csharp, dotnet, devtoys | On July 9th, 2024, Microsoft released .NET 9 Preview 6, featuring significant updates and enhancements across the framework. Key highlights include:
---
## Runtime Updates:
- ARM64 Code Generation: Improved data loading/storing, enhancing execution time.
- Code Layout: Optimized basic block ordering for better performance.
- Loop Optimizations: Enhanced performance by flipping loop counter variables.
- Reduced Address Exposure: Better tracking of local variables for more optimizations.
- AVX10v1 Support: New SIMD instruction set for AVX10-enabled hardware.
Hardware Intrinsic Code Generation: Improved handling of constants in hardware intrinsics.
- Constant Folding: Enhanced for floating-point and SIMD operations.
## SDK Updates:
- NuGetAudit: Warnings for vulnerabilities in transitive dependencies.
- dotnet nuget why: Command to identify usage of transitive packages.
- MSBuild BuildChecks: Enforces rules during builds, similar to Roslyn Analyzers.
## .NET MAUI Updates:
- Quality Improvements: Expanded test coverage and bug fixing for Android and iOS development.
- ASP.NET Core Updates:
- Fingerprinting of Static Web Assets: Improved caching and load times.
- Enhanced Distributed Tracing for SignalR: Better tracing capabilities.
- Microsoft.AspNetCore.OpenAPI Enhancements: Improved attribute support and schema transformers.
- New Analyzer for [Authorize] and [AllowAnonymous]: Warns when [Authorize] is overridden.
---
## 👀 Please visit [What’s New in .NET 9 Preview 6: Comprehensive Overview - DevToys.io](https://devtoys.io/2024/07/09/whats-new-in-net-9-preview-6-comprehensive-overview/) for an in-depth overview of these items! 🔥
---
## C# 13 Updates:
- Partial Properties: Supports source generators, making APIs intuitive.
- Primary Constructors in Logging Source Generator: Logging using classes with primary constructors.
- System.Text.Json Updates:
- Respecting Nullable Annotations: Enforces nullability during serialization/deserialization.
- Requiring Non-Optional Constructor Parameters: Treats non-optional constructor parameters as required.
- Ordering JsonObject Properties: Enables explicit property order manipulation.
- Additional Contract Metadata APIs: Exposes constructor metadata and improved attribute support.
## Libraries Updates:
- [GeneratedRegex] on Properties: Supports partial properties in C# 13.
- Regex.EnumerateSplits: Span-based input without allocation.
- OrderedDictionary<TKey, TValue>: New generic collection.
- ReadOnlySet<T>: For creating read-only views of sets.
- Span-Based APIs: New features for file operations and string manipulations.
- Base64Url: Methods for Base64Url encoding/decoding.
SocketsHttpHandler by Default: Improved configurability in HttpClientFactory.
- TLS Resume with Client Certificates on Linux: Adds support for TLS resume on Linux.
- Metrics Gauge Instrument: Records non-additive values like background noise level.
---
## 👀 Please visit [What’s New in .NET 9 Preview 6: Comprehensive Overview - DevToys.io](https://devtoys.io/2024/07/09/whats-new-in-net-9-preview-6-comprehensive-overview/) for an in-depth overview of these items! 🔥 | 3a5abi |
1,918,938 | Why InstaPro APK? Get It from Where? | Instapro APK is a modified version of the official Instagram app for Android devices. It is not... | 0 | 2024-07-10T19:49:04 | https://dev.to/fg_tbcentre_f9dbfc5489f0/why-instapro-apk-get-it-from-where-113a | instapro, apk, app | [Instapro APK](https://appinstapro.com/) is a modified version of the official Instagram app for Android devices. It is not available on the Google Play Store and must be downloaded from third-party sources. This modded version offers additional features and functionalities that are not available in the official Instagram app. Here's a breakdown of what Instapro APK is and how it works:
Features of Instapro APK
Ad-Free Experience:
Removes ads from the Instagram feed and stories for a smoother browsing experience.
Download Media:
Allows users to download photos, videos, and stories directly to their device.
Enhanced Privacy:
Options to hide view status on stories.
Disable typing indicator in direct messages.
Hide read receipts in direct messages.
Customization:
Offers themes and customization options to change the appearance of the app.
Additional Sharing Options:
Enables sharing of photos and videos with higher quality.
Ability to copy comments and bios.
Multiple Accounts:
Easier management of multiple Instagram accounts.
Increased Security:
Includes options for app lock and other security features.
How Instapro APK Works
Installation:
Users need to download the APK file from a reliable third-party source.
Before installation, they must enable installation from unknown sources in their device settings.
Install the APK file by opening it and following the on-screen instructions.
User Interface:
The interface is similar to the official Instagram app, making it familiar and easy to use.
Additional features can be accessed through settings or directly in the user interface.
Usage:
Once installed, users can log in with their Instagram credentials.
They can access enhanced features like downloading media, hiding activity status, and more through the app’s settings or options within the interface.
Risks and Considerations
Security Risks:
Since it’s a modded app, it may pose security risks, including potential exposure to malware.
Users should download the APK from trusted sources and be cautious of permissions requested by the app.
Account Safety:
Using third-party mods can lead to account suspension or bans by Instagram, as it violates their terms of service.
Updates:
Modded apps do not receive official updates from Instagram, which may result in compatibility issues or missing out on new features.
Features of Instapro APK
Ad-Free Experience:
Removes ads from the Instagram feed and stories for a smoother browsing experience.
Download Media:
Allows users to download photos, videos, and stories directly to their device.
**Enhanced Privacy:
**
Options to hide view status on stories.
Disable typing indicator in direct messages.
Hide read receipts in direct messages.
**Customization:
**
Offers themes and customization options to change the appearance of the app.
Additional Sharing Options:
Enables sharing of photos and videos with higher quality.
Ability to copy comments and bios.
Multiple Accounts:
Easier management of multiple Instagram accounts.
Increased Security:
Includes options for app lock and other security features.
How Instapro APK Works
**Installation:
**
Users need to download the APK file from a reliable third-party source.
Before installation, they must enable installation from unknown sources in their device settings.
Install the APK file by opening it and following the on-screen instructions.
**User Interface:
**
The interface is similar to the official Instagram app, making it familiar and easy to use.
Additional features can be accessed through settings or directly in the user interface.
Usage:
Once installed, users can log in with their Instagram credentials.
They can access enhanced features like downloading media, hiding activity status, and more through the app’s settings or options within the interface.
**Risks and Considerations
****Security Risks:
**
Since it’s a modded app, it may pose security risks, including potential exposure to malware.
Users should download the APK from trusted sources and be cautious of permissions requested by the app.
**Account Safety:
**
Using third-party mods can lead to account suspension or bans by Instagram, as it violates their terms of service.
Updates:
Modded apps do not receive official updates from Instagram, which may result in compatibility issues or missing out on new features.
**Privacy Concerns:
**
There is a risk that personal data could be compromised, as the app is not officially sanctioned by Instagram.
Conclusion
Instapro APK offers a range of enhanced features and functionalities for Instagram users, but it comes with significant risks. Users should weigh the benefits against the potential security and privacy concerns before deciding to use it. Always ensure to download from reputable sources and stay informed about the risks involved.
There is a risk that personal data could be compromised, as the app is not officially sanctioned by Instagram.
**Conclusion
**Instapro APK offers a range of enhanced features and functionalities for Instagram users, but it comes with significant risks. Users should weigh the benefits against the potential security and privacy concerns before deciding to use it. Always ensure to download from reputable sources and stay informed about the risks involved.
| fg_tbcentre_f9dbfc5489f0 |
1,918,914 | 8 Reasons Why You Need an APIToolkit | Your website is a dynamic entity. A lot happens on a daily basis; hundreds or more API requests are... | 0 | 2024-07-10T19:07:04 | https://dev.to/irhose/8-reasons-why-you-need-an-apitoolkit-34ch | api, devops, webdev, programming | Your website is a dynamic entity. A lot happens on a daily basis; hundreds or more API requests are sent regularly which makes monitoring the integrity of each call a demanding task.
Data shows that even the most reputable developer playgrounds like Discord and Slack have experienced downtime due to APIs breaking. The truth is, no one’s immune to downtime.
The good news is that a Plug-and-play API observability and monitoring tool like [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) can show your data in real time and alert you the second something breaks. This ensures you stay on top of your processes.
Here are the reasons why you should use [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral).
## 1. [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) Was Built by Developers for Developers
APIToolkit was built by software engineers to solve problems that have cost founders, startups, and tech companies lots of money. Anthony, one of the co-founders of [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) can be quoted saying, “We’re engineers at our core, who are very close to the problems we are solving. So, we encourage our users to be a part of this community evolving solutions to solve API documentation and observability.”
The team at [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) has a combined experience of 17+ years in software development. Not only does [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) provide observability and monitoring services, but we also have a supportive community on Discord where you can have open conversations with us.
Feel free to join the community or book a call with Anthony to chat about your experiences with API documentation and observability.
## 2. Stay up to Date With Your API Documentation
To keep our users informed in real time, we offer live auto-generated API documentation, contract monitoring and alerts. This ensures you’re notified of any changes to your APIs. New fields, new endpoints, empty fields, changes in field types, etc.
Our plug & play integration also lets you view your live API shapes, fields, etc., and generate Swagger docs at anytime via your live traffic.
Our dynamic notifications provide an extra layer of security against users with malicious intent or an unintentional coding error. For example, users may intentionally or unintentionally bombard an endpoint with traffic.
Such abnormally large amounts of traffic may overload your server and cause a DDoS outage. You can prevent this by setting up a notification for any abnormal increase in the number of queries against the endpoint.
This functionality can notify your security team if an endpoint receives abnormally large numbers of requests, so they can take action immediately.
## 3. View Your API Analytics in One Place
With our comprehensive dashboard, you can view response times, latency, etc. You can also run queries on your live API requests and responses.
Our API analytics provide faster queries and deeper insights into a buggy API to enhance your debugging process. For instance, APIToolkit offers real-time insights into your logs that scale substantially with the number of API calls. Adding APIToolkit to your API stack enables you to
View API logs and replay requests in Postman or cURL in seconds Real-time tailing and filtering of HTTP requests Examine HTTP request and response payloads Utilize a variety of parameters to segment and aggregate API calls at scale
## 4. Stay Vigilant with Our Anomaly Detector
Our powerful Anomaly Detector tool monitors your API endpoints traffic and reports any form of changes to you. It meticulously monitors your endpoints, tracking activities and alerting you about any alteration or changes – your watchman during the day and at night.
Examples of an anomaly could be that a new endpoint was created, a new field was added to the endpoints, a field is behaving differently from how it used to, an endpoint speed has suddenly dropped, a sudden drop in your traffic, etc. Basically, any form of changes to your endpoints that return an unfamiliar response will be tracked and reported by our powerful Anomaly Detector tool. It’s up to you to acknowledge whether you sanctioned the change, or you take action.
In a nutshell, APIToolkit will verify that your payloads are returning the correct data and will notify you of any changes.
Generally, we spot errors and address them before your customers do.
## 5. Detect and resolve issues 99 times faster
In a situation where your APIs are experiencing errors, latency, downtime, or anomalies, [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) raises an alarm, alerting you right on time. You can then drill down into the root cause of the issue via our Log Explorer. APIToolkit empowers you with the tools to track and resolve errors and bugs before your customers notice them.
## 6. Refactor and Migrate Safely
You no longer have to break your APIs to refactor them. Catch bugs and changes due to refactorings or migrations faster than your customers. Stay on top of your game with one dashboard that provides you with the analytics you need for seamless service.
Furthermore, you can quickly and seamlessly debug errors without tedious log-searching and fragile single-metric tests.
Lastly, [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) can help you uncover deeper insights about your API usage than you can with simple infrastructure monitoring. It's a complete observability tool.
## 7. Ensure Your API Security and Compliance
[APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) can help you protect your APIs from damages caused by malicious attacks, but alerting you when we find shady behaviour, like someone trying out SQL injection attacks on your endpoints. And also let you know when we find non-standard credential passing workflows in your system.
## 8. Get a Bird's Eye View of your Entire API
[APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) is equipped with the most advanced tools to give you a detailed insight into everything that is happening on your API. From the list of all your endpoints to metrics to documentation, etc., we have got you covered.
In a nutshell, you stay on top of your APIs in real time. You can view your endpoints, fields, and even export your API as swagger if you like. The always up-to-date documentation is generated automatically from your live traffic.
## Final Thoughts
Automating your processes isn’t always the answer to efficiency problems. But in this case, it definitely is. [APIToolkit](https://apitoolkit.io?utm_source=darksocial&utm_medium=referral) comes with features to supercharge your documentation and monitoring processes, keeping you alert, and saving you time and money. | irhose |
1,918,915 | Hello | Hello I am Melissa. I am currently studying Software Development at City Colleges of Chicago. A... | 0 | 2024-07-10T19:11:46 | https://dev.to/martinez415/hello-288i | Hello I am Melissa. I am currently studying Software Development at City Colleges of Chicago. A recent thing I learned is how to create a static website on render.com | martinez415 | |
1,918,917 | benefits of parcel as a bundler | benefits of parcel dev tools HMR - hot modules replacement --->> how - by using... | 0 | 2024-07-10T19:12:37 | https://dev.to/anurag_singh_2jz/benefits-of-parcel-as-a-bundler-1fbi | systemdesign, webdev, javascript, programming | ## benefits of parcel
- dev tools
- HMR - hot modules replacement <basically refreshes the file as we save the file>
--->> how - by using file watching algorithms made in c++ which keep track of your code and as soon as
you try to save the file it refreshes the server with new code
- local server <http://localhost:1234>
- cache memory mang. ---> makes its fast
- image optimization
- compresses the file <minify>
- bundling
- content hashing
- differential bundling **babel**
- can also run on ssl https
- tree shaking ---> removing the extra code or function which are not used
**content hasing :** -Content hashing in Parcel involves generating unique SHA-256 hashes for each file based on its content. Before deploying the application, Parcel compares these hashes with those stored in its cache directory ( .parcel-cache). If a file's hash matches its cached version, Parcel uses the cached file, avoiding unnecessary rebuilds and optimizing deployment speed. When a file's content changes, its hash updates, prompting Parcel to rebuild only the modified files and update them on the server. This approach not only improves build performance by reusing unchanged files but also ensures that browsers receive updated content reliably through unique filenames based on file hashes, preventing caching issues during deployment.
**hmr in detail** - so basically when file is modified i.e its hash is now different that of older version the modified file is only updated in the browser and all the other file whose hash are same of older hash uses the .parcel-cache file which reduce the time and avoid the rebuilding the whole application from scratch and this all thing is triggered every time when the programmer save the file && the browser is running that application (live)
**differential bundling :** since babel is used for bundling in parcel -- it perform several task
- babel convert the es6+ js code into the es5 code which necessary for you application to run in older browser
- It convert the jsx code of react into the js code (jsx into js object (ast)) as we all know browser's v8 engine is unable to understant the jsx code
- It also convert typescript in JavaScript as TS is superset of js that add static type to js | anurag_singh_2jz |
1,918,918 | How to publish Docker images to AWS ECR | ABOUT ECS ECS - Elastic Container Service is to containers what EC2 is to virtual... | 0 | 2024-07-10T19:15:42 | https://dev.to/justplegend/how-to-publish-docker-images-to-aws-ecr-1n8p | ###ABOUT ECS
ECS - Elastic Container Service is to containers what EC2 is to virtual machines. ECS have to modes:
1. EC2 mode which uses EC2 instances as container hosts (you can see this inside your aws account).
2. FARGATE MODE - this is serverless way of running docker containers where AWS manage the container host part, you can architect your environment using containers. You don't need to provision the infrastructure (you don't need to manage EC2 instances,everything is serverless).
In Fragate mode(launch type) user need just to create a task definition to define own ECS tasks. Then AWS will run these ECS tasks for us based on how many CPU and RAM you need for task.
ECR - Elastic Container Registry is managed Container image registry service, it’s like Docker Hub but this is for AWS, this mean that this is a service which AWS provide which hosts and manages container images.
Every user which have AWS account has a **PUBLIC and PRIVATE REGISTRY, EACH AWS account is provided with one of each. Every registry (PUBLIC or PRIVATE) can have many REPOSITORIES.**
This is something like GitHub, Bitbucket where you can have so many repositories which are public or private. Just like on GitHub where you can have so many folders inside of repository, in ECR each repository can contain MANY CONTAINER IMAGES.
IMAGES can have several tags and IMPORTANT **IS THAT THESE TAGS ARE UNIQUE** within your repository in ECR.
PUBLIC means that anyone can have only READ-ONLY ACCESS to anything within that registry, but to have more power over repoistory, user will need to have read-write permissions for public repository. Just like in Docker hub, if the repository is public you or other user can pull the image, but to push in this repository or make changes you need to have permissions.
PRIVATE ECS REPOSITORY means that for anything READ-ONLY, READ-WRITE user will need permissions. Just like the name PRIVATE, it is private for anything and for anything you need permissions.
- Setup own your own private container image registry using AWS ECR and publish images to it
- **BEFORE STARTING** it’s important that you have AWS CLI installed and you are logged in AWS
ECR is integrated with IAM (Permissions) . IAM is controlling permissions for access to ECS, anything within the product. This is similar for other products in AWS just like EC2, S3 etc..
One of the cool features which ECR have is that offers security scanning on images, so we have:
- Image scanning BASIC
- Image scanning ENHANCED → using inspector product
Amazon Inspector automatically discover workloads and scans them for software vulnerabilities and unintended network exposure. Support compliance requirements and best practices for NIST, CSF, PCI, DSS and other regulations with Amazon Inspector scans.
Leave visibility settings to private since we don’t want our images public for the world to be used.
###DOCKER IMAGES ON AWS ECR AND REPOSITORY
When you launch Docker containers on AWS, you are launching what's called and ECS TASK on ECS Cluster.
If you want to have more images on AWS ECR, you need to create a single repository for every image that you want to publish up into AWS Elastic Container Registry.
IF you have three different docker images you want to publish, you will need to create three separate containers for each. Why? Well, because the repository name here is actually going to line up directly with URL forward slash the image name that we’re going to use when we build and tag our images.
###CREATING REPOSITORY ON AWS ECR
Login on your AWS account and in the console bar type AWS ECS. Click on the button below "Create a repository". In the new view you will need to fill data and create new repository for docker image. In the part "General settings" leave like on the picture "Private" and give your name to repository, it can be whatever you want or nodejs-repo or similar.
Other settings in “Create Repository” can be default, scroll down and click on “Create repository”.
After creating repository, click on repository name and in the right corner you will see button “VIEW PUSH COMMANDS”. It will walk you how to push image on different OS, macOS/Linux, WIndows, which commands you need to type in terminal and push it.
On this window you will see something like(in your account it will be different): 34235252452452332.dkr.ecr.us-east-1.amazonaws.com, copy it somewhere on safe because you will need it in next steps.
###PUSHING DOCKER IMAGE ON ECR USING TERMINAL
IMPORTANT: YOU WILL NEED TO HAVE ALREADY INSTALLED AWS CLI. If you don't have installed, you can use this this tutorial to install AWS CLI v2.0.
In terminal we need to write some commands to:
Retrieve an authentication token and authenticate your Docker client to your registry. Use the AWS CLI:
`aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 5723528375274520.[dkr.ecr.us-east-1.amazonaws.com]`
aws ecr get-login-password --region us-east-1 ->>> this will going to generate a login password for the actual Docker client and connect to ECR and it’s ging to PIPE that into the docker login command.
It will take the password (stdin) that was created from aws ecr get-login-password and it’s going to pipe that into the docker login.
After this command HIT enter, if the login was successful you will have message:
IMPORTANT: This login HAS NOTHING TO DO WITH YOUR IAM PERMISSIONS IN AWS.
If you try to push this image on your ECR, you will probably get error, because your IAM permissions/credetionals are not configured properly.
###DOCKER BUILD IMAGE and PUSH ON ECR
Build your Docker image using the following command:
`$ docker build . -t sun-repo-html-app`
After the build completes, tag your image so you can push the image to this repository:
`docker tag sun-repo-html-app:latest 5723528375274520[.dkr.ecr.us-east-1.amazonaws.com/sun-repo-html-app:latest](http://637423384432.dkr.ecr.us-east-1.amazonaws.com/sun-repo-html-app:latest)`
Run the following command to push this image to your newly created AWS repository:
`docker push 5723528375274520[.dkr.ecr.us-east-1.amazonaws.com/sun-repo-html-app:latest](http://637423384432.dkr.ecr.us-east-1.amazonaws.com/sun-repo-html-app:latest)`
After pushing image on ECR, go to AWS console in ECR registry to check your image in your created repository on AWS.
If you go inside of latest folder, you can get more info:
###DELETING LOCALLY DOCKER IMAGE AND PULL FROM ECR
We will delete locally created docker image, so we can PULL it from AWS ECR.
In terminal type:
`$docker images`
`$ docker image rm your_image_id`
For example:
`$docker image 8e1d12601bcc`
or using command
`docker image ls | grep sun-repo-html-app`
DOcker message that docker file is deleted locally:
###PULLING IMAGE FROM ECR
Checking with command docker images, that image is pulled from ECR:
###AWS FREE TIER
As a new Amazon ECR customer, you get 500 MB per month of storage for your private repositories for one year as part of the [AWS Free Tier.](https://aws.amazon.com/free/)
Both new and existing customers get 50 GB per month of always-free storage for their public repositories. You can anonymously (without using an AWS account) transfer 500 GB of data to the Internet from a public repository each month for free. If you sign up for an AWS account, or authenticate to Amazon ECR with an existing AWS account, you can transfer 5 TB of data to the Internet from a public repository each month for free. You also get unlimited bandwidth at no cost when transferring data from a public repository to AWS compute resources in any AWS Region.
With Amazon ECR, there are no upfront fees or commitments. You pay only for the amount of data you store in your public or private repositories, and data transferred to the internet.
Amazon ECR automatically encrypts images at rest using Amazon S3 server-side encryption or AWS KMS encryption and transfers your container images over HTTPS. You can configure policies to manage permissions and control access to your images using AWS Identity and Access Management (IAM) users and roles without having to manage credentials directly on your EC2 instances.
| justplegend | |
1,918,919 | Exploring the Impact of DefiLlama in Shaping the Landscape of Decentralized Finance | As the modern digital sphere continues to evolve, the advantages of a particular platform in this... | 0 | 2024-07-10T19:18:43 | https://dev.to/defillama545/exploring-the-impact-of-defillama-in-shaping-the-landscape-of-decentralized-finance-2on9 | cryptocurrency, ethereum, blockchain, web3 |
As the modern digital sphere continues to evolve, the advantages of a particular platform in this rapidly changing economy become increasingly important. One such platform, known synonymously as DefiLlama, has solidified its niche within the landscape of Dispersed Financial systems. This innovative and rapidly growing entity is making significant strides in transforming and reshaping the digital economy as well as the larger financial ecosystem.
In an era where financial autonomy, security, and transparency hold paramount importance, distributed monetary administrations have emerged as a rebellious force in the traditionally centralized financial world. Among these novel tools em>DefiLlamaem> shines as it takes prominence in this brave new economy.
The purpose of this section is to shed light on the workings of this entity, delineate its uniquely designed offerings, and elucidate its indelible impact on the realm of Distributed Trade practices by leveraging the sanctions of blockchain technology.
Why Opt for Using NeoFinance's DApp Monitor?
In a world that's swiftly gravitating towards a digital renaissance, few tools embody this shift better than NeoFinance's brand-new DApp Monitor. This innovative resource, boasting significant advantages, is your trusted companion in defragmented fiscal environments. Throughout this section, we'll delve deep into the benefits it offers.
Superior Transparency: Operating in a digital financial ecosystem demands visibility. With NeoFinance's DApp Monitor, users experience unparalleled transparency - a noteworthy feature that's often unmet in the crypto world. Stay ahead of the curve, monitor effectively, and make informed fiscal decisions.
Enhanced Security: Barely a day passes without reports of hacking or theft in the cyber financial ecosystem. With this in mind, our DApp Monitor brings on board remarkable vibrant security features, providing users not only peace of mind, but also the assurance of robust protection in all your digital transactions.
Seamlessness: The DApp Monitor promises an effortless user- interface, positioning it as an essential tool in the digital financial Maven's toolkit. Its simple, intuitive design means minimal learning curves - allowing individuals to focus more on their fiscal goals, and less on maneuvering through complicated platforms.
Scalability: As we forge ahead in the 21st century, flexibility and scalability are critical. NeoFinance's DApp Monitor offers an adaptive solution that grows with your needs. With its versatile capacity, it meets the ever-evolving demands of a digital finance enthusiast.
All these benefits and more position our DApp Monitor as a comprehensive solution for navigating the flux-ridden waters of digital economies. Stay tuned to reap the many benefits waiting under the hood!
Comprehensive Crypto Asset Tracking
In a digital world evolving at a rapid pace, managing and keeping an eye on crypto assets with precision is crucial. This section delves into the importance and ways of tracking crypto assets in a thorough and meticulous manner. It will provide insight to individuals and corporations who wish to stay updated with the movement of these digital assets in a flawless and efficient manner, without delving into specific terminologies.
Why is Crypto Asset Tracking Important?
Cryptocurrency, a digital alternative to traditional financial structures, has greatly influenced the global financial dynamics. As such, tracking these digital assets has become vital to protect and monitor investments in this fluctuating market. There are numerous reasons why thorough crypto asset tracking is pivotal:
Security: Keeping an eye closely on your digital assets helps in preventing fraudulent transactions.
Profit Maximization: With precise tracking, you can ensure selling or buying at optimal price points, maximizing profitability.
Regulatory Compliance: Many jurisdictions require reporting of digital asset holdings, requiring solid tracking systems.
Methods for Thorough Crypto Asset Tracking
There are numerous ways of keeping track of your digital assets, each with its own unique advantages:
Portfolio Applications: Mobile and web applications that help in tracking all your digital investments in one place.
API Integrations: Certain platforms offer API integrations to gather data from multiple sources for precise tracking.
Fiat Gateways: These are digital portals that help track the real-world value of your crypto assets.
Overall, tracking digital assets is an essential practice for anyone invested in digital currencies. It not only ensures protection of your digital assets but also aids in asset optimization and compliance with local jurisdictions.
Interactive and User-Friendly Platform
Creating a rewarding experience for our clientele is at the foundation of our digital framework. Simplicity and professionalism coexist to offer a highly customizable environment. This is not a mere utility, but an immersive hub where efficiency and user interactions merge harmoniously.
Our platform has been carefully crafted with the end user in mind. Its interactive layout guarantees easy navigation, regardless of your level of tech-savviness. Stripped from any unnecessary clutter, its sleek design makes every action feel seamless and intuitive.
Optimized to promote user-friendliness, this platform is more than a tool - it's a space where ease of use is paramount. Whether you're a seasoned financial expert or just starting in the digital landscape, you will appreciate how effortless controlling your assets feels.
Experience a platform that adapts to your demands. Never worry about complex interfaces again, as our system is built with guidelines that make it easily adaptable. From in-depth details to broad overviews, encounter a structure that molds to your specific needs.
Be ready to explore a digital landscape reimagined. With our interactive and user-friendly platform, your journey through the intricate world of digitized assets will be one of discovery and simplicity.
Updated Market Information
In our mission to continue providing accurate and relevant data, we are proud to feature our fresh segment focused on recent advancements and trends happening in the world of unfettered, web-based financial systems. This section presents an overview of refreshed intelligence from the marketplace. Stay tuned for hot-off-the-press details without having to navigate through the chaos of the internet.
Our dedicated team at DefiLlama utilizes advanced analytical tools and techniques, as well as in-depth industry understanding, to dig deep into this diverse and global platform. For enthusiasts, pro traders, or curious beginners, every detail counts! Let's dive into recent findings:
Updated maps of token distribution across several platforms.
Newly minted digital assets making an entry into the markets.
Emerging players in the unregulated online financial plans.
Volatility index mapping potential risks and rewards.
Regulatory updates from world-wide jurisdictions.
Sustainable and green initiatives within non-centralized fiscal systems.
Furthermore, we understand the need for verified and non-partisan details, especially in the ever-changing environment of digital assets exchange. Thus, we maintain rigorous research domains:
Synchronized data gathering and analysis across multiple time zones.
Unbiased reports to reaffirm our commitment towards integrity.
Strategic collaborations with global partners to secure comprehensive details.
Regular follow-ups and progress tracking of promising cyberspace initiatives.
Don't let the vital insights slip away! Stay ahead of the curve with our unfettered market intelligence. Let DefiLlama be your guide in navigating the multifaceted world of digitized capital solutions.
Getting Started with Blockchain-based Financial Solutions
Embarking on your journey with DLT-based (Distributed Ledger Technology) economic frameworks can be both exciting and confusing. In this section, we talk about diving in and getting started. We promise to guide you through while keeping the jargon to a minimum.
Understanding the basic concept: DLT-based economic frameworks are essentially financial systems that operate on a blockchain platform. They are 'decentralized' because the financial processes and transactions don't rely on a central authority like a bank or government.
Familiarize with terminologies: Before stepping in, you need to familiarize yourself with common terms and phrases in use. These include decentralized exchanges (DEXs), lending platforms, yield farming, liquidity pools, and so on.
Steps to begin your journey
Doing research: The very first step is understanding what you're signing up for. Read articles, watch videos, take part in relevant forums and discussions to gain insight into the blockchain finance world.
Choosing the right platform: Be sure to choose a blockchain platform that provides transparency, security, and a high degree of control over your investments.
Creating an account: Once you've selected your platform, the next step is to create an account. Make sure to set a strong password and enable all security measures available.
Starting small: Lastly, start with a small investment. Monitor the performance closely and understand the trends before making any huge investments.
No matter the ups and downs, remember that patience, research, and understanding are key to holding a strong position in this new age economic model. All the best for your DLT-based financial solutions journey!
How to Navigate the World of Alternative Economic Structures
As we delve into this section, we shall explore the navigation of this platform, sans the specific definitions for now. As vibrant as it may seem, maneuvering through the platform can be quite perplexing, especially to novices in the crypto space. Hence, we shall attempt to demystify the process, making it easier to put the platform to good use.
To begin with, the home interface of the platform is designed for user convenience. It provides a broad view of the liquidity and the yield farms. However, it’s from the side menu that you can access the platform's other features.
Menu Option Description
Home This is the dashboard that gives you an overview of your entire transactions and more.
Pools This option gives you access to detailed information about every active pool.
Yield Farms This is where you can engage in yield farming, an online investment strategy.
Market This section is for checking prevailing rates and news of assets under management.
Explore This option allows you to explore different assets and make your choice.
The platform also features a search bar at the top of the page that can be used to search for specific pools, farms, or markets. Navigation without difficulty in the realm of digital asset control is a necessary skill. With a good understanding of the aforementioned, you'll be able to make the most of this platform.
https://deffillama.digital/ | defillama545 |
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- The Importance of DeFi Tracking Tools
Join us as we venture into an integral aspect of the crypto finance sphere, one that is often overlooked despite its crucial role. Monitoring the crypto stage isn't just about watching the values rise and fall, it involves considerably more to guarantee that your virtual assets and investments are in secure hands.We're speaking about Decentralized Finance (DeFi) oversight utilities, and in case you're just about dipping your feet into this vast, complex world, understanding the significance of these utilities could well be among your initial steps.
Unfortunately, not many seem to realize this. More often than not, most individuals dive headfirst into the decentralized finance realm without fully comprehending the landscape or the tools necessary for successfully navigating it. We're here to correct that oversight and provide you with a robust foundation of knowledge, ensuring your crypto journey is as risk-free as possible.
Overview of Key Functions of DeFiLlama
Take a trip with us through the elaborate functions and distinctive features of DeFiLlama. This globally recognized tool, built for the decentralized financial markets, stands out among its peers, holding a promising future for anyone hoping to dive into the world of digital finance. This comparative overview aims to provide you with vital features that accentuate the efficacy of DeFiLlama.
Features Description
Wide Asset Coverage DeFiLlama makes it possible to access a variety of diverse assets, all in one place. Breaking geographical barriers, from the most well-known to the less circulated, DeFiLlama covers them all.
Connecting Networks One thing that sets DeFiLlama apart is its seamless integration with multiple blockchains. This agnostic nature has bridged the gap between users and the multitude of diverse networks, making the tool flexible and universal.
Simplified Interface Most users will find the easy-to-use interface of DeFiLlama appealing. Its intuitive feature removes the complexity involved in using blockchain technologies, making it user-friendly and hassle-free.
Latest Market Data Real-time information is crucial in the world of decentralized finance. DeFiLlama keeps its users up-to-date with the latest trends and changes, providing accurate market data at their fingertips.
Reliable Security In the realm of digital finance, security is paramount. Recognizing this, DeFiLlama ensures that your digital assets and financial transactions are shielded with top-notch security protocols and measures.
In conclusion, DeFiLlama steps up to the plate by meeting the expectations of users worldwide with its diverse asset coverage, unhindered connection with networks, user-friendly interface, access to real-time market data, and guaranteed security. Don't just take our word for it! Experience a new level of decentralized finance management with DeFiLlama.
Navigating Through DefiLlama: A Step-by-Step Guide
Navigating Through DefiLlama: A Step-by-Step Guide
Staying current, informed, and precise in your financial transactions is no easy task, particularly in the complex world of decentralized finance. With an array of platforms, applications and protocols to keep track of, it can quickly become overwhelming. Our solution? A comprehensive guide to effortlessly steer your way through one of the top platforms in the industry: DefiLlama.
DefiLlama stands tall as one of the most relied upon, and instrumental platforms in the decentralized finance sector. With the ability to dissect, present, and inform users of the intricacies of various Defi protocols, it is a quintessential resource for anyone hoping to thrive in this fast-paced, ever-changing sector.
Our easy-to-follow guide will help you familiarize with the platform, efficiently navigate its features, and ultimately ensure that you make well-informed investment decisions. Accurate and timely insights will be right at your fingertips.
So sit back, relax, and let us take the reigns as we guide you, step by step, through all the key features of DefiLlama. By the end of it, you will have gained the confidence and knowledge to make the platform work for you, rather than the other way round.
Getting Started: Setting Up Your DefiLlama Account
Embarking on your journey into decentralised finance demands precision and meticulous monitoring. To assist you in navigating this realm, we guide you in setting up your account with DefiLlama, a popular platform for keeping an eye on your investments in the decentralised finance world. Actualize your financial freedom by optimally utilizing this user-friendly interface for a clearer understanding of your virtual assets.
Establishing your account on DefiLlama requires you to follow simple steps:
Once your account is set up, you have the freedom to add your decentralised finance protocols and track their progress seamlessly. This walkthrough is intended to ensure your navigation and understanding of the DefiLlama platform is effortless and trouble-free. Secure your digital investments with ease and stay updated with the ever-evolving landscape of decentralised finance.
How to use DeFiLlama for Monitoring Blockchain Projects
Navigating the complex landscape of financial technologies, especially those tied to the world of blockchain developments, can be intensified with the aid of specialized software. One such example is the program known as 'DeFiLlama'. As such, this section of our material will serve as a guide in putting to use this innovative platform in observing and monitoring blockchain-centered projects.Without bogging the reader down with confounding details and jargon, first we must address the general approach one would take in their utilization of DeFiLlama. In layman's terms, the goal behind using such platforms is to create a smooth procedure of keeping tabs on the varying progressions and activities related to blockchain development projects.
1. Accessing DeFiLlama: The first rule of thumb for any software use is actually accessing it. Same with DeFiLlama, the procedure begins by launching its designated portal available online.
2. Navigating the Interface: Upon entering the software, you'll be greeted with a user-friendly interface, designed with the intention to streamline the process of checking on blockchain-based initiatives.
3. Choosing the category: With multiple options to choose from, it is pivotal to decide which category suits your needs best. The categories are tailored to various fields of observation such as assets, liquidity providers, and yield farming, among others.
4. Monitoring: Once the choices have been made, it's down to diligent monitoring of your chosen initiatives, aided by the detailed breakdowns and charts that DeFILama provides for each project.
In conclusion, the aim here is to simplify and democratize the task of keeping a watch on blockchain projects with DeFiLlama. With a more comfortable approach to this complex process, everyone, from seasoned professionals to beginners in the field, can benefit from the power of decentralized finance.
Understanding the DeFiLlama Dashboard and Its Functionalities
In the evolving sphere of decentralized finance, it becomes crucial to stay up-to-date with your investments and market dynamics. You need a single platform that helps you keep track of these variables across various blockchain networks. This brings us to DefiLlama, a resource-rich platform with a comprehensive set of features. This section will enlighten you about its dashboard and functionalities without delving into jargon or specifics. You will acquire a wholesome comprehension, whether you're a novice or an adept individual in the decentralized finance domain.
The dashboard of DefiLlama is a robust interface equipped with numerous features designed for a smooth and proficient operation. It keeps you well-aware and informed about the latest trends and metrics across multiple chains. To present an overview without inundating you with complexity, let's break these functionalities down!
Functionality Description
Chain Overview This feature provides a wide-ranging snapshot of multiple chains, including their total value locked (TVL).
Protocol Explorer It presents a comprehensive directory of different protocols across the chains, allowing you to monitor their performance.
Portfolio Tracker An advanced tool to keep track of your investments in real-time across all supported blockchain networks.
Data Exporter With this feature, you can download and store trend data for your convenience and further analysis.
Exploring these features, you'll find DefiLlama a uniquely handy tool. It fosters an insightful navigation through the labyrinth of decentralized finance, aiding in making informed decisions.
https://deffillama.digital/ | defillama545 |
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1,918,926 | Understanding DeFi - Unraveling the Role of Blockchain Technology in Decentralized Finance | How DeFi Works: The Use of Blockchain Technology Delve deeply into the progressive sphere of modern... | 0 | 2024-07-10T19:35:31 | https://dev.to/defillama3/understanding-defi-unraveling-the-role-of-blockchain-technology-in-decentralized-finance-3e69 | cryptocurrency, ethereum, web3, web | How DeFi Works: The Use of Blockchain Technology
Delve deeply into the progressive sphere of modern monetary solutions through a fine-grained exploration of decentralized financial (DeFi) protocols, guided by this comprehensive elucidation. Uncover the wonders of this game-changing domain that employs cryptographic ledger systems - an approach that libertarian tech-savvy enthusiasts worldwide laud. Providing a groundbreaking alternative to traditional banking methods, it fuels enhanced safety, transparency, and self-sovereignty.
A comprehensive grasp of Decentralized finance isn't merely about grasping the concept of digital currencies; far from it. It's about acknowledging and appreciating its transformative power and the potential implications it holds for our future. This series is specifically designed to decode hard-to-understand concepts and allow you to effortlessly navigate the world of cryptographic systems.
Are you all set for a deep-dive into understanding the nuances of next-generation finance? Ready to seize the opportunity and get well-versed with the trending shift towards monetary decentralization? Without further ado, let's commence this insightful journey together.
Introducing DefiLlama: A Comprehensive Crypto Finance Dashboard
Our digital universe is vast, intricate and continuously expanding. With every passing second, new advancements in the realm of digital finance make it harder to keep track of our investments and to understand the panorama in which we are operating. As such, what we need, is a comprehensive tool to help us make sense of this ever-expanding space. Enter, DefiLlama: Your comprehensive crypto finance dashboard.
DefiLlama is designed to offer investors a bird's-eye view of the cryptoverse. It does so by providing up-to-date information that eliminates the need for constantly switching between different platforms, cryptos, or offshore protocols. So, let's embark on an insightful journey of discovering the manifold benefits and features of this revolutionary platform.
Unearthing DefiLlama's Capabilities
As an avid digital investor, you understand the importance of staying informed. With DefiLlama, you are empowered to obtain real-time data, not just about your selections, but also the complete market landscape. So, get ready to discover the investing sensationalism DefiLlama has to offer.
Stay Updated
A key aspect of being a successful investor is staying updated with the latest market trends and fluctuations. With DefiLlama's real-time updates feature, you are always ahead of the curve with precise details regarding your favourite tokens and platforms.
Centralized Interface
Having one place to monitor all your crypto investments is no longer a dream. DefiLlama’s centralized interface feature provides you easy access to the information of all your digital assets, in one place.
With DefiLlama, you can transform from being a passive investor to an enlightened connoisseur of the crypto market. If we've piqued your interest, wait until you experience DefiLlama first hand. Brace yourselves, for a comprehensively simple, succinct and superior digital finance experience.
Why You Need DefiLlama: Listing its Key Features
Why You Need DefiLlama: Listing its Key Features
In an era where conventional financial systems and cryptocurrencies intersect, there are platforms like DefiLlama that serve as a bridge for users seeking to leverage the benefits of decentralized finance. This section will delve into the essential components of DefiLlama, elucidating why it is a must-have tool for those involved in this revolutionized digital economy.
DefiLlama provides an array of functionalities designed to offer users an all-encompassing suite for managing decentralized finance assets. While it may appear intricate at first, these unique attributes summarize why DefiLlama stands as a crucial instrument for any digital currency user with an interest in decentralized finance.
Key Features Description
Comprehensive Analytics With DefiLlama, you can gain access to detailed insights about your crypto assets across numerous chains. This allows you to understand and compare your asset performance.
Real-Time Updates Stay abreast of the latest happenings in the ever-evolving decentralized finance marketplace with real-time updates and notifications. This ensures that you make the most informed decisions for your assets.
Multichain Support There's no need to switch between networks manually, DefiLlama allows you to manage assets on multiple chains within a single platform. This provides convenience and increases efficiency.
Secure Asset Management With DefiLlama, security is prioritized. Your decentralized finance assets are protected through the implementation of stringent safety protocols, giving you peace of mind.
To sum up, DefiLlama assembles a multitude of features that simplify and enhance the process of managing decentralized finance assets. Thus, it's an indispensable tool for both those who are new to the digital currency space and seasoned crypto-enthusiasts alike.
Navigating DefiLlama: A Comprehensive Step-by-Step Manual
Navigating DefiLlama: A Comprehensive Step-by-Step Manual
This subsequent section is designed to assist users in effectively navigating through on the DefiLlama platform. Without resorting to technological jargon, we've created a simple, concise advisor to maneuver through the interface avoiding common pitfalls and complexity. Detailed below is a table guiding even a novice to command like an expert.
Step Action
1 Access DefiLlama and register for an account if you haven't done so already.
2 Take a brief moment to familiarize yourself with the layout. The dashboard is your primary navigation resource.
3 Discover the 'Portfolio' option in the menu, this allows you to track and manage your invested assets.
4 Explore 'Project' section to get familiar with multiple Defi projects.
5 Locate the 'Resources' tab for valuable education material and latest updates on Defi.
By following these straightforward steps, users can take full advantage of the array of benefits DefiLlama offers. From here, we encourage users to continue exploring by their own to deepen their understanding of this empowering financial tool.
Evaluating the Performance and Usability of DefiLlama
In this segment, our focus will be to ascertain the effectiveness and user-friendliness of DefiLlama. Essentially, we will carry out a detailed analysis of its performance across various parameters. Further, we will address all aspects of usability and provide insights about user experience with this robust finance ecosystem.
DefiLlama is a highly comprehensive and versatile analytical tool. It's designed to keep track of important metrics from decentralized financial systems, or the world of open finance. Conducting a thorough performance evaluation will help users understand its strengths and potential areas of improvement. Besides the performance analysis, the user-friendly nature of the interface is of critical significance, and hence, we will also delve into its usability.
Performance Features Usability Features
Latency User Interface Design
Throughput Navigation Ease
Computational Capacity Information Architecture
Data Processing Speed Error Management
Accuracy of Collected Data Accessibility and Responsiveness
In conclusion, the aim here is to deliver a robust evaluation that can assist users in getting the most out of DefiLlama. The importance of such an analysis cannot be overstated in this dynamic and rapidly evolving world of decentralized finance.
User Experiences and Reviews: What People are Saying
Delve into the realm of authentic interactions and candid assessments! This section will be your guide into the experiences of individuals who have utilized our service. We believe in full transparency and value our patrons' opinions, hence we make sure to include all views, whether positive or negative, to give you an exhaustive perspective.
Ease of utilization: One of the common praises we have gathered is regarding our straightforward operation. Users have appreciated the intuitive interface and simple navigation, often comparing it favorably with other, more complex systems.
Security assurance: Among the points of commendation, the guarantee of robust protection has been a recurring thought. Our patrons report feeling secure in the knowledge that their transactions are safeguarded against any potential breaches.
Efficacy and efficiency: We're invariably excited when our users recount their experiences regarding the swiftness of our platform's operations. A number of reviews praise the rapid and effective execution of transactions in a hassle-free manner.
Top-notch guidance: Countless user anecdotes reflect appreciation for our exceptional assistance. Users report that from their initial steps through ongoing operation, they've felt supported and guided, thanks to our comprehensive educational resources and responsive customer care.
We invite you to explore these experiences and learn from the real-life interactions others have had with our service!
Analysing the Strengths and Areas for Improvement of DefiLlama
In this section, we delve into a clear-cut analysis of the strengths and potential areas for enhancement of DefiLlama, a leading decentralized finance tracking platform. We strive to dissect its features and performance from various angles, highlighting its advantages while also signifying any loopholes that might need rectification or improvements.
Let's embark on this exploration by highlighting DefiLlama's strong points:
Transparency: DefiLlama prides itself on providing an open-source space that potentially empowers users to track their digital assets effectively.
Exhaustive Listings: Across multiple blockchain networks, DefiLlama offers comprehensive listings of DeFi projects, enhancing discovery and decision-making for users.
Useful Metrics: The platform displays an array of valuable metrics like Total Value Locked (TVL), representing a significant usability boon for users seeking in-depth data insights.
Operational Simplicity: Navigating the platform is relatively uncomplicated, with a simplified and understandable interface catering to both novice and expert users.
While these strengths give DefiLlama a competitive edge, no system is devoid of potential enhancements. Here are some areas where DefiLlama could possibly bolster its functionality:
Extended Trading Tools: Incorporating more advanced trading tools and features could add to the over-all functionality of DefiLlama.
Data Accuracy: Although the platform provides useful metrics, there's room for improvement in the accuracy and real-time update of this data.
Platform Security: With escalating concerns over cyber attacks and security breaches, more robust safety measures could fortify user trust.
User Support: An improved customer support system, including multilingual support and faster response times, could elevate the overall user experience.
Through this analysis, it becomes evident that while DefiLlama exhibits strong points like transparency, exhaustive listings, and user-friendly features, there are potential improvements in trading tools, data reliability, platform security, and user support. Striking the balance between retaining its strengths and enhancing areas of concerns would significantly propel DefiLlama towards reaching new heights in the DeFi space.
https://deffillama.digital/ | defillama3 |
1,918,927 | Discover and Understand the World of DeFi through a Comprehensive Guide on DefiLlama | Have you ever pondered the essence of DefiLlama? Surely the notion has spurred your interest and... | 0 | 2024-07-10T19:36:47 | https://dev.to/defillama3/discover-and-understand-the-world-of-defi-through-a-comprehensive-guide-on-defillama-48il | cryptocurrency, ethereum, web3, blockchain | Have you ever pondered the essence of DefiLlama? Surely the notion has spurred your interest and tickled your curious mind. A fusion of innovation, technology and finance, DefiLlama stands as a beacon leading the way towards the realm of decentralised finance. In essence, it brings the future to your fingertips.
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Why You Need DefiLlama for DeFi Analytics
In an era where the digital currency market continually evolves, it's crucial to have reliable and comprehensive data analysis tools at your disposal. That's where DefiLlama steps in, ready to revolutionize the way you work within the DeFi (Decentralized Finance) realm. This section focuses on the importance of DefiLlama while exploring the DeFi landscape.
DefiLlama serves as your comprehensive guide through the intricate labyrinth of DeFi. It provides all the data you need in a highly digestible format. Apart from the essential metrics that every DeFi enthusiast needs to track, it offers detailed data visualization, which helps you understand complex multi-strand relations in this field. Essentially, seamless navigation through data is a feature you should not overlook.
Unlock the door to opportunities with DefiLlama! If you are striving to make informed decisions in the dynamic world of DeFi, accurate data analysis is indispensable. But not just any analysis. You need a platform built and optimized for DeFi, like DefiLlama. It decoding complex data, simplifying it into palatable, actionable insights. Such deep insights pave your way to making smarter investment decisions.
Indeed, DefiLlama presents a competitive edge in DeFi operations. The platform supports a wide range of protocols, allowing users to manage assets efficiently across different blockchain networks. The diversity and expansiveness of the platform, combined with reliable analytics, offer a strong foundation for strategic planning and execution in DeFi operations.
DefiLlama is not just another data analytics tool; it's your game-changing ally in the DeFi world. Its unique features and capabilities make it an indispensable tool for anyone who wishes to thrive in the DeFi landscape. Harness the power of comprehensive, accurate, and detailed data analysis with DefiLlama, and redefine your DeFi narrative.
Getting Started with this DeFi Gem
Are you excited about exploring the world of decentralized finance? Do you want to dive into a realm full of intriguing technological advancements and financial freedom? This section aims to radiate a first beam of light onto the path of your DeFi journey. Brace yourself to embark on a learning expedition.
We will talk about Unfolding the Enigma of Decentralized Finance by diving headfirst into the world of a star player on the DeFi arena. Our prominent Act in focus holds none other than the title DefiLlama. This new player is taking the DeFi world by storm and it's time you get on board.
But don't rush into things just yet! Before you start making use of, it's essential to get your basics right. Getting acquainted with the underlying technology and concepts of DefiLlama will give you a sturdy foundation and set you on the right path to master its magic.
Stay tuned! In the next few sections, we will help you unravel the mysteries of DefiLlama step-by-step and guide you to get started in this fascinating DeFi journey.
Implementing DefiLlama into Your DeFi operations
Dive into the fascinating world of decentralized finance (DeFi) by incorporating DefiLlama into your daily operations. Broaden your horizon by exploring how this revolutionary platform can elevate your DeFi activities.
DefiLlama acts as a single hub for all your DeFi needs. By providing valuable, real-time insights into diverse DeFi protocols, it aids in making informed decisions. But how to instill this tool into your DeFi businesses? Let's delve into the steps!
Understand Your Needs: Prior to integrating a new platform, it's crucial to identify your requirements. By doing so, you can make the most out of DefiLlama.
Create an Account: Set up an account at DefiLlama. It's as simple as providing an email and creating a secure password.
Explore the Platform: Familiarize yourself with the platform. DefiLlama has an intuitive user interface, designed for varied DeFi users.
Choose the Right Protocols: DefiLlama hosts numerous DeFi protocols. Choose the ones aligning best with your DeFi operations.
Monitor and Adjust: Keep monitoring the market trends and adjusting your DeFi strategies with DefiLlama.
By following these steps, one can smoothly implement DefiLlama into their DeFi operations. It's time to redefine your DeFi strategies with DefiLlama!
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1,918,929 | Mastering Dependency Management with Architect: Tips and Best Practices | Liquid syntax error: 'raw' tag was never closed | 0 | 2024-07-10T19:39:22 | https://dev.to/joswellahwasike/mastering-dependency-management-with-architect-tips-and-best-practices-5bjk | In today’s software development landscape, managing dependencies effectively is crucial for building reliable and scalable applications. This task becomes even more complex in cloud environments where applications often rely on a multitude of services, APIs, and databases. Architect, with its robust dependency-aware features, offers a powerful solution for managing dependencies seamlessly. This article delves into the intricacies of dependency management in cloud environments using Architect, providing practical tips, best practices, and highlighting common pitfalls to avoid.
## Understanding Dependency Management in Cloud Environments
**What is Dependency Management?**
Dependency management involves tracking, updating, and resolving dependencies that an application requires to function correctly. These dependencies can include libraries, frameworks, APIs, databases, and other external services.
Effective dependency management ensures that all components of an application work together harmoniously, reducing the risk of conflicts and runtime errors.
## Challenges of Dependency Management in the Cloud
Managing dependencies in cloud environments presents unique challenges:
* **Scalability:** Cloud applications often need to scale dynamically, requiring dependencies to scale accordingly.
* **Version Control:** Ensuring compatibility between different versions of dependencies can be challenging, especially when multiple services interact.
* **Security:** Dependencies must be regularly updated to mitigate security vulnerabilities.
* **Complexity:** The distributed nature of cloud applications adds complexity to dependency management, with various services relying on different sets of dependencies.
## The Role of Architect in Dependency Management
Architect simplifies dependency management by providing a dependency-aware platform that automatically manages and resolves dependencies for cloud applications.
Architect integrates with CI/CD pipelines, ensuring that every deployment is production-grade and includes all necessary components such as APIs, databases, and event systems.
## Architect's Dependency-Aware Features
**Automatic Dependency Resolution**
Architect's platform automatically resolves dependencies, ensuring that all required components are available and correctly configured for each deployment. This reduces the risk of missing or incompatible dependencies, streamlining the development and deployment process.
### Environment-Specific Configurations
Architect supports environment-specific configurations, allowing developers to define dependencies for different environments (development, staging, production). This ensures consistency across environments while catering to the unique requirements of each stage.
**Version Management**
Architect provides robust version management, allowing developers to specify exact versions of dependencies or use semantic versioning to ensure compatibility. This helps in maintaining stability and reducing the likelihood of version conflicts.
**Integrated Monitoring and Logging**
Architect integrates monitoring and logging features that provide insights into dependency performance and issues. This enables proactive management and quick resolution of any dependency-related problems.
### Practical Tips for Effective Dependency Management
**Tip 1: Use Semantic Versioning**
Semantic versioning is a versioning scheme that uses a three-part version number: MAJOR.MINOR.PATCH (e.g., 1.2.3). This scheme helps in understanding the impact of changes in dependencies:
* **MAJOR:** Breaking changes that are not backward-compatible.
* **MINOR:** New features that are backward-compatible.
* **PATCH:** Bug fixes and minor improvements that are backward-compatible.
Using semantic versioning helps maintain compatibility and provides clarity on the nature of changes in dependencies.
## Tip 2: Isolate Dependencies in Containers
Containerization isolates dependencies within individual containers, ensuring that each service has its own set of dependencies. This reduces the risk of conflicts and makes it easier to manage and update dependencies independently. Docker is a popular tool for containerization.
### Example: Dockerfile for a Node.js Application
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["node", "app.js"]
```
This Dockerfile sets up a Node.js application with its dependencies isolated within a container.
**Tip 3: Regularly Update Dependencies**
Keeping dependencies up-to-date is crucial for security and performance. Regular updates help in mitigating security vulnerabilities and taking advantage of the latest features and improvements.
## Automated Dependency Updates with Dependabot
Dependabot is a tool that automatically checks for dependency updates and creates pull requests to update them. Integrating Dependabot into your CI/CD pipeline ensures that your dependencies are always current.
### Tip 4: Monitor and Log Dependency Performance
Monitoring and logging are essential for identifying and resolving dependency-related issues. Tools like Prometheus and Grafana can provide real-time insights into dependency performance and health.
**Example: Monitoring with Prometheus and Grafana**
1. **Prometheus Configuration:**
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'node'
static_configs:
- targets: ['localhost:9090']
```
2. **Grafana Dashboard:**
Create a Grafana dashboard to visualize the metrics collected by Prometheus, providing a comprehensive view of dependency performance.
**Tip 5: Implement Robust CI/CD Pipelines**
CI/CD pipelines automate the process of building, testing, and deploying applications. Integrating dependency management into CI/CD pipelines ensures that dependencies are consistently managed across all stages of development and deployment.
**Example: CI/CD Pipeline with GitHub Actions**
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install dependencies
run: npm install
- name: Run tests
run: npm test
- name: Build application
run: npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
This GitHub Actions workflow automates the process of installing dependencies, running tests, building the application, and deploying it to production.
### Case Study: A Real-World Example
**Scenario: Deploying a Full-Stack Application with Architect**
* Overview:
A team of developers is tasked with deploying a full-stack application using Architect. The application consists of a Node.js backend, a React frontend, and a PostgreSQL database. The goal is to ensure seamless dependency management across development, staging, and production environments.
**Step 1: Setting Up the DevelopmentEnvironment**
1. **Initialize the Project:**
```bash
mkdir fullstack-app
cd fullstack-app
architect init
```
2. **Create Dockerfiles for Backend and Frontend:**
* Backend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY backend/package*.json ./
RUN npm install
COPY backend/ .
CMD ["node", "server.js"]
```
*Frontend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ .
CMD ["npm", "start"]
```
3. **Define Services in architect.yml:**
```yaml
services:
backend:
image: backend-image
build:
context: .
dockerfile: backend/Dockerfile
environment:
DATABASE_URL: ${DATABASE_URL}
API_KEY: ${API_KEY}
ports:
- 4000:4000
frontend:
image: frontend-image
build:
context: .
dockerfile: frontend/Dockerfile
ports:
- 3000:3000
database:
image: postgres:13
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: password
POSTGRES_DB: appdb
ports:
- 5432:5432
```
**Step 2: Configuring Dependencies**
1. Specify Environment Variables:
<env
DATABASE_URL=postgres://user:password@localhost:5432/appdb
API_KEY=your_api_key
2. Install Dependencies:
```bash
architect install
```
**Step 3: Deploying to Different Environments**
1. Deploy to Development:
```bash
architect deploy dev
```
2. Promote to Staging:
```bash
architect promote dev staging
```
3. Deploy to Production:
```bash
architect deploy production
```
**Step 4: Monitoring and Logging**
1. Set Up Prometheus and Grafana:
* Prometheus Configuration:
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'backend'
static_configs:
- targets: ['backend:4000']
- job_name: 'frontend'
static_configs:
- targets: ['frontend:3000']
```
2. Create Grafana Dashboard:
* Add Prometheus as a data source in Grafana.
* Create visualizations to monitor backend and frontend performance.
**Step 5: Implementing CI/CD Pipeline**
1. GitHub Actions Workflow:
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install backend dependencies
run: cd backend && npm install
- name: Install frontend dependencies
run: cd frontend && npm install
- name: Run backend tests
run: cd backend && npm test
- name: Run frontend tests
run: cd frontend && npm test
- name: Build backend
run: cd backend && npm run build
- name: Build frontend
run: cd frontend && npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
### Common Pitfalls and How to Avoid Them
**Pitfall 1: Ignoring Dependency Updates**
Ignoring dependency updates can lead to security vulnerabilities and compatibility issues. Regularly updating dependencies ensures that your application remains secure and performs optimally.
**Solution:**
* Automate Updates: Use tools like Dependabot to automate dependency updates.
* Scheduled Maintenance: Allocate time for regular maintenance and updates.
### Pitfall 2: Overcomplicating Dependency Management
Overcomplicating dependency management by adding unnecessary dependencies or not isolating them properly can lead to conflicts and increased complexity.
**Solution:**
* Minimal Dependencies: Only include essential dependencies.
* Isolation: Use containerization to isolate dependencies for different services.
### Pitfall 3: Inconsistent Environments
Inconsistent environments between development, staging, and production can cause unexpected issues and make troubleshooting difficult.
**Solution:**
* Environment Parity: Ensure that all environments are as similar as possible.
* Infrastructure as Code (IaC): Use tools like Terraform or CloudFormation to manage infrastructure consistently across environments.
### Pitfall 4: Lack of Monitoring
Failing to monitor dependencies can lead to undetected issues and poor performance.
**Solution:**
* Comprehensive Monitoring: Implement monitoring and logging for all dependencies.
* Proactive Management: Regularly review monitoring data and address any issues promptly.
### Conclusion
Managing dependencies in cloud environments is a complex but crucial aspect of modern software development. Architect’s dependency-aware features provide a robust solution for handling dependencies effectively, ensuring that your application is stable, secure, and performant. By following the tips and best practices outlined in this article, you can master dependency management and avoid common pitfalls, paving the way for successful and efficient deployments.
Embrace the power of Architect to streamline your dependency management process and focus on building innovative and scalable applications. Join the Architect community, leverage its powerful tools, and elevate your development workflow to new heights. Happy coding!
| joswellahwasike | |
1,918,931 | Mastering Dependency Management with Architect: Tips and Best Practices | Liquid syntax error: 'raw' tag was never closed | 0 | 2024-07-10T19:39:23 | https://dev.to/joswellahwasike/mastering-dependency-management-with-architect-tips-and-best-practices-2ooi | In today’s software development landscape, managing dependencies effectively is crucial for building reliable and scalable applications. This task becomes even more complex in cloud environments where applications often rely on a multitude of services, APIs, and databases. Architect, with its robust dependency-aware features, offers a powerful solution for managing dependencies seamlessly. This article delves into the intricacies of dependency management in cloud environments using Architect, providing practical tips, best practices, and highlighting common pitfalls to avoid.
## Understanding Dependency Management in Cloud Environments
**What is Dependency Management?**
Dependency management involves tracking, updating, and resolving dependencies that an application requires to function correctly. These dependencies can include libraries, frameworks, APIs, databases, and other external services.
Effective dependency management ensures that all components of an application work together harmoniously, reducing the risk of conflicts and runtime errors.
## Challenges of Dependency Management in the Cloud
Managing dependencies in cloud environments presents unique challenges:
* **Scalability:** Cloud applications often need to scale dynamically, requiring dependencies to scale accordingly.
* **Version Control:** Ensuring compatibility between different versions of dependencies can be challenging, especially when multiple services interact.
* **Security:** Dependencies must be regularly updated to mitigate security vulnerabilities.
* **Complexity:** The distributed nature of cloud applications adds complexity to dependency management, with various services relying on different sets of dependencies.
## The Role of Architect in Dependency Management
Architect simplifies dependency management by providing a dependency-aware platform that automatically manages and resolves dependencies for cloud applications.
Architect integrates with CI/CD pipelines, ensuring that every deployment is production-grade and includes all necessary components such as APIs, databases, and event systems.
## Architect's Dependency-Aware Features
**Automatic Dependency Resolution**
Architect's platform automatically resolves dependencies, ensuring that all required components are available and correctly configured for each deployment. This reduces the risk of missing or incompatible dependencies, streamlining the development and deployment process.
### Environment-Specific Configurations
Architect supports environment-specific configurations, allowing developers to define dependencies for different environments (development, staging, production). This ensures consistency across environments while catering to the unique requirements of each stage.
**Version Management**
Architect provides robust version management, allowing developers to specify exact versions of dependencies or use semantic versioning to ensure compatibility. This helps in maintaining stability and reducing the likelihood of version conflicts.
**Integrated Monitoring and Logging**
Architect integrates monitoring and logging features that provide insights into dependency performance and issues. This enables proactive management and quick resolution of any dependency-related problems.
### Practical Tips for Effective Dependency Management
**Tip 1: Use Semantic Versioning**
Semantic versioning is a versioning scheme that uses a three-part version number: MAJOR.MINOR.PATCH (e.g., 1.2.3). This scheme helps in understanding the impact of changes in dependencies:
* **MAJOR:** Breaking changes that are not backward-compatible.
* **MINOR:** New features that are backward-compatible.
* **PATCH:** Bug fixes and minor improvements that are backward-compatible.
Using semantic versioning helps maintain compatibility and provides clarity on the nature of changes in dependencies.
## Tip 2: Isolate Dependencies in Containers
Containerization isolates dependencies within individual containers, ensuring that each service has its own set of dependencies. This reduces the risk of conflicts and makes it easier to manage and update dependencies independently. Docker is a popular tool for containerization.
### Example: Dockerfile for a Node.js Application
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["node", "app.js"]
```
This Dockerfile sets up a Node.js application with its dependencies isolated within a container.
**Tip 3: Regularly Update Dependencies**
Keeping dependencies up-to-date is crucial for security and performance. Regular updates help in mitigating security vulnerabilities and taking advantage of the latest features and improvements.
## Automated Dependency Updates with Dependabot
Dependabot is a tool that automatically checks for dependency updates and creates pull requests to update them. Integrating Dependabot into your CI/CD pipeline ensures that your dependencies are always current.
### Tip 4: Monitor and Log Dependency Performance
Monitoring and logging are essential for identifying and resolving dependency-related issues. Tools like Prometheus and Grafana can provide real-time insights into dependency performance and health.
**Example: Monitoring with Prometheus and Grafana**
1. **Prometheus Configuration:**
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'node'
static_configs:
- targets: ['localhost:9090']
```
2. **Grafana Dashboard:**
Create a Grafana dashboard to visualize the metrics collected by Prometheus, providing a comprehensive view of dependency performance.
**Tip 5: Implement Robust CI/CD Pipelines**
CI/CD pipelines automate the process of building, testing, and deploying applications. Integrating dependency management into CI/CD pipelines ensures that dependencies are consistently managed across all stages of development and deployment.
**Example: CI/CD Pipeline with GitHub Actions**
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install dependencies
run: npm install
- name: Run tests
run: npm test
- name: Build application
run: npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
This GitHub Actions workflow automates the process of installing dependencies, running tests, building the application, and deploying it to production.
### Case Study: A Real-World Example
**Scenario: Deploying a Full-Stack Application with Architect**
* Overview:
A team of developers is tasked with deploying a full-stack application using Architect. The application consists of a Node.js backend, a React frontend, and a PostgreSQL database. The goal is to ensure seamless dependency management across development, staging, and production environments.
**Step 1: Setting Up the DevelopmentEnvironment**
1. **Initialize the Project:**
```bash
mkdir fullstack-app
cd fullstack-app
architect init
```
2. **Create Dockerfiles for Backend and Frontend:**
* Backend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY backend/package*.json ./
RUN npm install
COPY backend/ .
CMD ["node", "server.js"]
```
*Frontend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ .
CMD ["npm", "start"]
```
3. **Define Services in architect.yml:**
```yaml
services:
backend:
image: backend-image
build:
context: .
dockerfile: backend/Dockerfile
environment:
DATABASE_URL: ${DATABASE_URL}
API_KEY: ${API_KEY}
ports:
- 4000:4000
frontend:
image: frontend-image
build:
context: .
dockerfile: frontend/Dockerfile
ports:
- 3000:3000
database:
image: postgres:13
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: password
POSTGRES_DB: appdb
ports:
- 5432:5432
```
**Step 2: Configuring Dependencies**
1. Specify Environment Variables:
<env
DATABASE_URL=postgres://user:password@localhost:5432/appdb
API_KEY=your_api_key
2. Install Dependencies:
```bash
architect install
```
**Step 3: Deploying to Different Environments**
1. Deploy to Development:
```bash
architect deploy dev
```
2. Promote to Staging:
```bash
architect promote dev staging
```
3. Deploy to Production:
```bash
architect deploy production
```
**Step 4: Monitoring and Logging**
1. Set Up Prometheus and Grafana:
* Prometheus Configuration:
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'backend'
static_configs:
- targets: ['backend:4000']
- job_name: 'frontend'
static_configs:
- targets: ['frontend:3000']
```
2. Create Grafana Dashboard:
* Add Prometheus as a data source in Grafana.
* Create visualizations to monitor backend and frontend performance.
**Step 5: Implementing CI/CD Pipeline**
1. GitHub Actions Workflow:
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install backend dependencies
run: cd backend && npm install
- name: Install frontend dependencies
run: cd frontend && npm install
- name: Run backend tests
run: cd backend && npm test
- name: Run frontend tests
run: cd frontend && npm test
- name: Build backend
run: cd backend && npm run build
- name: Build frontend
run: cd frontend && npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
### Common Pitfalls and How to Avoid Them
**Pitfall 1: Ignoring Dependency Updates**
Ignoring dependency updates can lead to security vulnerabilities and compatibility issues. Regularly updating dependencies ensures that your application remains secure and performs optimally.
**Solution:**
* Automate Updates: Use tools like Dependabot to automate dependency updates.
* Scheduled Maintenance: Allocate time for regular maintenance and updates.
### Pitfall 2: Overcomplicating Dependency Management
Overcomplicating dependency management by adding unnecessary dependencies or not isolating them properly can lead to conflicts and increased complexity.
**Solution:**
* Minimal Dependencies: Only include essential dependencies.
* Isolation: Use containerization to isolate dependencies for different services.
### Pitfall 3: Inconsistent Environments
Inconsistent environments between development, staging, and production can cause unexpected issues and make troubleshooting difficult.
**Solution:**
* Environment Parity: Ensure that all environments are as similar as possible.
* Infrastructure as Code (IaC): Use tools like Terraform or CloudFormation to manage infrastructure consistently across environments.
### Pitfall 4: Lack of Monitoring
Failing to monitor dependencies can lead to undetected issues and poor performance.
**Solution:**
* Comprehensive Monitoring: Implement monitoring and logging for all dependencies.
* Proactive Management: Regularly review monitoring data and address any issues promptly.
### Conclusion
Managing dependencies in cloud environments is a complex but crucial aspect of modern software development. Architect’s dependency-aware features provide a robust solution for handling dependencies effectively, ensuring that your application is stable, secure, and performant. By following the tips and best practices outlined in this article, you can master dependency management and avoid common pitfalls, paving the way for successful and efficient deployments.
Embrace the power of Architect to streamline your dependency management process and focus on building innovative and scalable applications. Join the Architect community, leverage its powerful tools, and elevate your development workflow to new heights. Happy coding!
| joswellahwasike | |
1,918,932 | The Struggles of Making Games | How gamedev is complicated | 0 | 2024-07-10T19:47:07 | https://dev.to/shinspiegel/the-struggles-of-making-games-32hp | gamedev, godot | ---
title: The Struggles of Making Games
published: true
description: How gamedev is complicated
tags: gamedev, godot
# cover_image: https://direct_url_to_image.jpg
# Use a ratio of 100:42 for best results.
# published_at: 2024-07-10 18:35 +0000
---
Ok, I'll try to write this post in both [portuguese](#pt) and [english](#en).
### <a name="en"></a> English
When I started making games around 2018, it was just for fun. I was excited about my progress with JavaScript, and the idea of using some of that knowledge to make games felt like a natural leap.
But there's more to the story.
When I was 10, I made simple games with [Game-Maker](https://en.wikipedia.org/wiki/Game-Maker)
<small>(note that this is not GameMaker, it's Game-Maker, with a `-` in the middle; totally different products, like something Microsoft would name)</small>
At 13, I toyed with RPG Maker 2000, which was super innovative at the time. Lots of events and many small RPGs that never went anywhere. I remember trying to make one, and the best I could do was create some half-baked enemies and a nonsensical story that went nowhere.
At 15, with a good friend from my youth (who I still miss), we messed around with PHP to create a little map for use while playing GURPS.
A few years later, while talking with a coworker, we had just finished playing [Cave Story](https://en.wikipedia.org/wiki/Cave_Story), which had received a fan translation. I discovered it was made by just one person. Soon, we were discussing, "Why don't we make a game?"
This was back in 2005, almost 10 years before Godot existed and about 5 years (if not more) before anyone had free access to Unity. But the world wasn’t hopeless, and [Allegro](https://liballeg.org/) was there to save the day.
> By the way, that page looks the same as when I first saw it in 2005.
As I learned to write code in C, something I had never done before (the closest was a bit of BASIC, lots of Excel functions, and some Lisp for AutoCAD), but nothing was going to stop me from progressing.
After a few days, I had a `sprite` on the screen that I could move with the arrow keys, basically the `hello world` of any game dev!
Conversations came and went, and my coworker didn’t want to make the `sprites` for the game anymore. All I had left was a `png` file full of dreams.
In 2013, when I graduated in Industrial Design, I made a board game for my final project, one of many I created during my university years. Sadly, I shared very few with friends (something I should have done much more).
Before I knew it, it was 2018, and I was opening the newly released Godot 3. I started making little games again, and usually, the same thing breaks me: "Art."
How to make the "_Art_." I understand the process of "_design_," I can do it, and I can write code where I can understand myself well enough. But the "_art_." That I need to define.
What is "_art_"?
> The first two things that come up in the dictionary are:
> 1. The ability or skill to apply knowledge or execute an idea.
> 2. A set of means by which something can be practically realized.
And what is "_art_" for me in the context of Game Dev?
> Art is the process by which design material is converted into `assets` for a game.
> In this case, graphics, music, code, dialogues, sound effects...
Alright, if _art_ is everything that makes a game, a _game_.
**So, what’s the problem?**
The problem is that, even with effort, I still can’t reach a quality level that satisfies me. I can make music, sound effects (even if most are just _blips_ and _blops_), and I can create the pixel art that I love.
But I don’t enjoy this process. Opening my text editor to write code is fun, opening the pixel editor and designing a character is cool... but...
Animating is a pain,
Pixel art is fun, but animating is a real drag.
Composing music is cool, but man, it takes me almost an entire day to compose **one** song, and it still feels subpar.
Sound effects never bothered me; just grab some objects around the house and record with the mic, throw in tons of effects, and it’s done.
I enjoy coding, and I usually can make way more than **one** mechanic a day for my tiny games.
<center>So what to do?</center>
<center id="dont-know-en"><b>I have no idea</b></center>
<br/><br/>
But let me tell you what hasn’t worked so far:
### Writing a Game Design Document (GDD)
Of course, the process maniac here decided to put a process into making games. Many hours of planning have been done, and my list on [itch](https://shinspiegel.itch.io/) remains the same.
For every item on [itch](https://shinspiegel.itch.io/), I must have at least 3 other GDDs that never left the paper. And for every game there, I have at least 5x more material in GDD to continue the game.
What doesn’t work?
Overplanning and not seeing results.
The more I prepare, the less perceptible the results are. It just feels farther from finishing. There are always more `sprites` to be made than I have lifetime to create, always more music to be composed than I have the capacity to make.
And remember, I’m a hobbyist at this, and my drawing and composing skills are limited. (To not call it _mediocre_)
### Kanban, Trello, Jira...
No matter the type of board, it’s just a more visual way of doing a GDD, and simpler. The more information on each card, the worse; the less information on each card, the worse.
I tried putting cards with tags, colors, drawings, icons, but in the end, it’s just effort that I don’t see where it’s going, and that I could be using to write more code or make more graphics.
Between a board and a checklist, I prefer the list.
### Simple text files or Markdown?
If it’s a checklist, why not go straight to text files?
Markdown is the new `.doc` for developers, but with fewer color effects for words and no way to link to a data sheet, but it works well enough, honestly.
It works as mind map. But when it starts getting heavier than that, it loses its point, especially if you want to include time estimates or try to create a pseudo-Trello. _It doesn’t work_. Don’t try it, you’ll get hurt!
Now, if it’s just "to-do lists" or a simplified version of GDD, it "_works_" within limits.
### And the future?
So what now that I’ve compiled all the information? As I said [here](#dont-know-en), I have no idea. But all mistakes lead you forward, helping you learn and become a better dev, or in this case, a better game dev, right?
I hope so.
That’s it for today, thank you.
(()=>{})()
<br/><br/><br/><br/>
### <a name="pt"></a> Portugues
Quando eu comecei a fazer jogos em meados de 2018, era apenas uma brincadeira. Estava empolgado com meu desenvolvimento em JavaScript e pensar que poderia usar parte do conhecimento para fazer jogos foi apenas um salto natural.
Mas, existe algo que precede isso.
Quando tinha 10 anos, fazia jogos simples com [Game-Maker](https://en.wikipedia.org/wiki/Game-Maker)
<small>(repare que esse não é o GameMaker, é o Game-Maker, com um `-` que separa o nome; produtos totalmente diferentes, parece até a Microsoft dando nome a produtos)</small>
Quando tinha 13 anos, brincava com RPG Maker 2000, que era super inovador na época. Vários eventos e muitos pequenos RPGs que nunca chegaram a lugar algum. Lembro de ter tentado fazer um e o melhor que consegui foi criar meia dúzia de inimigos e uma história sem pé nem cabeça que leva de lugar algum para lugar nenhum.
Quando eu tinha 15 anos, junto com um grande amigo de juventude (de quem sinto falta até hoje), fizemos uma brincadeira em PHP. Era apenas para ser um mapinha para usar enquanto jogávamos GURPS.
Alguns anos depois, enquanto conversava com um colega de trabalho, tínhamos acabado de jogar [Cave Story](https://en.wikipedia.org/wiki/Cave_Story), que havia recebido uma tradução de fã, e eu descobri que tinha sido feito por apenas uma pessoa. Logo entramos no assunto "por que não fazemos um jogo?".
Isso foi em 2005, quase 10 anos antes do Godot existir, e uns 5 anos (se não mais) antes de qualquer um ter acesso (gratuito) à Unity. Mas ainda assim o mundo não estava perdido, e [Allegro](https://liballeg.org/) estava aqui para te salvar.
> Inclusive, essa página continua igual desde que eu a vi pela primeira vez em 2005.
Enquanto eu aprendia a escrever código em C, algo que nunca fizera antes, o mais perto que cheguei foi um pouco de BASIC e muitas funções de Excel, além de um pouco de Lisp para AutoCAD, mas isso não iria me impedir de progredir.
Depois de uns dias, eu já tinha um `sprite` na tela e conseguia movê-lo com as setas do teclado, basicamente o `hello world` de qualquer game dev!
Conversas vão e vêm, e meu colega de trabalho não queria mais fazer os `sprites` para o jogo, e a única coisa que me restou foi um arquivo `png` com sonhos ali.
Em 2013, quando me graduei em Design Industrial, fiz como projeto de graduação um jogo de tabuleiro, um de muitos que fiz ao longo dos anos na universidade, e tão poucos compartilhei com amigos (algo que deveria ter feito muito mais).
Quando me dei conta, era 2018 e eu estava abrindo o recém-lançado Godot 3, e então comecei novamente a fazer joguinhos. Geralmente o ponto que me quebra é o mesmo: "Arte".
Como fazer a "_Arte_"? O processo de "_design_" eu entendo, sou capaz de fazer, escrever código onde consigo me entender o bastante; mas a "_arte_", essa eu preciso definir.
O que é "_arte_"?
> As duas primeiras coisas que aparecem no dicionário são:
> 1. Capacidade ou habilidade para a aplicação de conhecimento ou para a execução de uma ideia.
> 2. Conjunto dos meios pelos quais é possível obter a realização prática de algo.
E o que é "_arte_" para mim no contexto de Game Dev?
> Arte é o processo pelo qual o material de _design_ é convertido em `assets` para um jogo.
> Nesse caso gráficos, música, código, diálogos, efeitos sonoros...
Certo, então _arte_ é tudo o que faz um jogo, _jogo_.
**E onde está o problema?**
O problema é que eu, mesmo com esforço, ainda não consigo atingir um ponto de qualidade que me deixe satisfeito. Sou capaz de fazer músicas, efeitos sonoros (mesmo que a maioria sejam _blips_ e _blops_), e consigo fazer a pixel art que tanto gosto.
Mas eu não me divirto nesse processo. O processo de abrir o meu editor de texto e escrever código é divertido, abrir o editor de pixel e fazer o design de um personagem é legal... mas...
Fazer animações é um saco,
Pixel art é legal, mas fazer animações é um belo pé no saco.
Compor música é legal, mas pai amado, eu levo quase um dia inteiro para compor **uma** música, e ainda assim fica meia boca.
Efeitos sonoros nunca me incomodaram, basta pegar uns objetos pela casa e gravar com o microfone, jogar toneladas de efeitos e está pronto.
Código eu me divirto, e geralmente consigo fazer muito mais do que **uma** mecânica por dia para meus jogos minúsculos.
<center>E então o que fazer?</center>
<center id="dont-know">**Eu não tenho ideia**</center><br/><br/>
Mas deixa eu te falar o que não funcionou até agora:
### Escrever um Game Design Document (GDD)
Claro que o maluco dos processos aqui iria decidir colocar processo para fazer os joguinhos, e muitas horas de planejamento já foram feitas e minha lista no [itch](https://shinspiegel.itch.io/) continua no mesmo.
Para cada item no [itch](https://shinspiegel.itch.io/), eu devo ter pelo menos 3 outros GDDs que nunca saíram do papel. E para cada jogo ali, eu tenho pelo menos mais 5x mais material em GDD para continuar o jogo.
O que não funciona?
Planejar demais e não ver resultado.
Quanto mais eu preparo, menos resultados são perceptíveis, apenas que está longe demais de terminar. Sempre tem mais `sprites` para serem feitos do que eu tenho tempo de vida para fazer, sempre tem mais músicas para serem compostas do que eu tenho capacidade de fazer.
E lembre-se, eu sou um hobista nisso, e minha capacidade de desenho e composição são limitadas. (Para não chamar de _meia-boca_)
### Kanban, Trello, Jira...
Não importa o tipo de board, isso é apenas uma forma mais visual de um GDD, e mais simplista. Quanto mais informações em cada cartão, pior; quanto menos informação em cada cartão, pior.
Tentei colocar cartões com tags, coloridos, com desenhos, com ícones, mas no fundo, isso é apenas esforço que não vejo onde está indo, e que poderia estar usando para fazer mais código, ou fazer mais gráficos.
Entre um board e uma lista com check-list, prefiro a lista.
### Arquivos de texto simples, ou Markdown?
Se é check-list, por que não ir direto aos arquivos de texto?
Markdown é o novo `.doc` do desenvolvedor, mas com menos efeitos de cores para as palavras e não tem como conectar numa planilha de dados, mas funciona bem o bastante, sinceramente.
Funciona como organização de pensamentos. Mas quando começa a ficar mais pesado que isso, perde o sentido, principalmente se quiser colocar estimativas de tempo, ou tentar fazer um pseudo-Trello. Não funciona. Não tente, você vai se machucar!
Agora, se for apenas "listas do que fazer", ou uma versão simplificada de GDD, "_funciona_" dentro dos limites.
### E o futuro?
E o que fazer agora que compilei todas as informações, como eu disse [aqui](#dont-know), não tenho ideia. Mas todos os erros te levam para frente, te fazem aprender a se tornar um dev, ou nesse caso um game dev, melhor, não?
Espero que sim.
Isso é por hoje, obrigado.
(()=>{})()
| shinspiegel |
1,918,933 | Dpboss Matka Result For Kalyan Matka | Sattamatka.gg Is one Of The most Popular website for Dpboss Matka Result also Get Kalyan matka Chart... | 0 | 2024-07-10T19:43:29 | https://dev.to/satta_matka_777/dpboss-matka-result-for-kalyan-matka-1f1k | sattamatka | Sattamatka.gg Is one Of The most Popular website for [Dpboss](https://sattamatka.gg/) Matka Result
also Get Kalyan matka Chart Fully Free. | satta_matka_777 |
1,918,934 | Typescript Coding Chronicles: Kids With the Greatest Number of Candies | Problem Statement: There are n kids with candies. You are given an integer array candies,... | 0 | 2024-07-10T19:44:16 | https://dev.to/__zamora__/typescript-coding-chronicles-kids-with-the-greatest-number-of-candies-5h57 | webdev, javascript, programming, typescript | ## Problem Statement:
There are `n` kids with candies. You are given an integer array `candies`, where each `candies[i]` represents the number of candies the `i`-th kid has, and an integer `extraCandies`, denoting the number of extra candies that you have.
Return a boolean array `result` of length `n`, where `result[i]` is `true` if, after giving the `i`-th kid all the `extraCandies`, they will have the greatest number of candies among all the kids, or `false` otherwise.
Note that multiple kids can have the greatest number of candies.
### Example 1:
- Input: `candies = [2,3,5,1,3]`, `extraCandies = 3`
- Output: `[true,true,true,false,true]`
- Explanation:
- Kid 1: 2 + 3 = 5 candies, which is the greatest among the kids.
- Kid 2: 3 + 3 = 6 candies, which is the greatest among the kids.
- Kid 3: 5 + 3 = 8 candies, which is the greatest among the kids.
- Kid 4: 1 + 3 = 4 candies, which is not the greatest among the kids.
- Kid 5: 3 + 3 = 6 candies, which is the greatest among the kids.
### Example 2:
- Input: `candies = [4,2,1,1,2]`, `extraCandies = 1`
- Output: `[true,false,false,false,false]`
- Explanation:
- Kid 1 will always have the greatest number of candies, even if a different kid is given the extra candy.
### Example 3:
- Input: `candies = [12,1,12]`, `extraCandies = 10`
- Output: `[true,false,true]`
### Constraints:
- `n == candies.length`
- `2 <= n <= 100`
- `1 <= candies[i] <= 100`
- `1 <= extraCandies <= 50`
## Initial Thought Process:
The basic approach is to:
1. Find the maximum number of candies that any kid currently has.
2. Iterate through each kid, and check if giving them all the `extraCandies` makes their total candies greater than or equal to the current maximum number of candies.
3. Return a boolean array where each element indicates whether that kid can have the greatest number of candies.
## Basic Solution:
### Code:
```typescript
function kidsWithCandiesBasic(candies: number[], extraCandies: number): boolean[] {
let maxCandies = Math.max(...candies);
let result: boolean[] = [];
for (let i = 0; i < candies.length; i++) {
if (candies[i] + extraCandies >= maxCandies) {
result.push(true);
} else {
result.push(false);
}
}
return result;
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the number of kids. Finding the maximum candies takes O(n), and iterating through the candies array also takes O(n).
- **Space Complexity:** O(n), for the result array of boolean values.
### Limitations:
This solution is efficient given the constraints. It works within the allowed time and space complexities.
## Optimized Solution:
The basic solution is already optimal in terms of time complexity. However, we can focus on making the code more concise and clean.
### Code:
```typescript
function kidsWithCandiesOptimized(candies: number[], extraCandies: number): boolean[] {
const maxCandies = Math.max(...candies);
return candies.map(candy => candy + extraCandies >= maxCandies);
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the number of kids. Finding the maximum candies takes O(n), and mapping through the candies array also takes O(n).
- **Space Complexity:** O(n), for the result array of boolean values.
### Improvements Over Basic Solution:
- The optimized solution uses `Array.prototype.map`, which makes the code more concise and readable.
## Edge Cases and Testing:
### Edge Cases:
1. `candies` array has minimum and maximum values.
2. `extraCandies` is equal to the number of candies the kid with the most candies has.
3. `extraCandies` is much smaller than the number of candies the kid with the most candies has.
### Test Cases:
```typescript
console.log(kidsWithCandiesBasic([2,3,5,1,3], 3)); // [true, true, true, false, true]
console.log(kidsWithCandiesBasic([4,2,1,1,2], 1)); // [true, false, false, false, false]
console.log(kidsWithCandiesBasic([12,1,12], 10)); // [true, false, true]
console.log(kidsWithCandiesOptimized([2,3,5,1,3], 3)); // [true, true, true, false, true]
console.log(kidsWithCandiesOptimized([4,2,1,1,2], 1)); // [true, false, false, false, false]
console.log(kidsWithCandiesOptimized([12,1,12], 10)); // [true, false, true]
```
## General Problem-Solving Strategies:
1. **Understand the Problem:** Carefully read the problem statement and constraints to understand what is required.
2. **Identify Key Operations:** Determine the key operations needed, such as finding the maximum value and iterating through the array.
3. **Optimize for Readability:** Use built-in functions like `Math.max` and `Array.prototype.map` to make the code concise and readable.
4. **Test Thoroughly:** Test the solution with various cases, including edge cases, to ensure correctness.
## Identifying Similar Problems:
1. **Finding the Maximum Element:**
- Problems where you need to determine the maximum element in an array.
- Example: Finding the maximum score in a game leaderboard.
2. **Conditional Array Mapping:**
- Problems where you need to create a new array based on a condition applied to each element of the original array.
- Example: Creating an array of booleans indicating whether students passed based on their scores.
3. **Comparison with Extra Values:**
- Problems where you need to compare elements of an array with an additional value to determine a condition.
- Example: Checking if adding a bonus to employees' scores makes them eligible for a reward.
## Conclusion:
- The problem of determining if kids can have the greatest number of candies after adding extra candies can be efficiently solved using a straightforward approach.
- Understanding the problem and breaking it down into manageable parts is crucial.
- Using built-in functions can make the code more concise and readable.
- Testing with various edge cases ensures robustness.
- Recognizing patterns in problems can help apply similar solutions to other challenges.
By practicing such problems and strategies, you can improve your problem-solving skills and be better prepared for various coding challenges. | __zamora__ |
1,918,935 | Tutorial: SwiftUI Character Limit in a TextField | Here is a simple, but handy tutorial for limiting the number of characters in a TextField. I use this... | 0 | 2024-07-10T23:07:10 | https://dev.to/troyhusted/tutorial-swiftui-character-limit-in-a-textfield-2f1i | swiftui, swift, textfield | Here is a simple, but handy tutorial for limiting the number of characters in a TextField. I use this in my app [Recitation](https://www.recitation-app.com/) to limit the number of characters that the user can have for different tags.
Validated for Swift Version 5.9
## Step 1: Combine & Just()
```
import Combine
```
Per Apple's documentation, the Combine framework ["provides a declarative Swift API for processing values over time. These values can represent many kinds of asynchronous events. Combine declares publishers to expose values that can change over time, and subscribers to receive those values from the publishers."](https://developer.apple.com/documentation/combine) It's use for us today is the Just() function, which is a publisher used to return a result a singular time.
## Step 2: Limit Text Function
```
func limitText(_ limit: Int) {
if subTaskText.count > limit {
subTaskText = String(subTaskText.prefix(limit))
}
}
```
This function uses the parameter limit to determine if subTaskText (the string holding the user's typed text) is greater than the imposed character limit. If the user attempts to type additional characters beyond the limit, the subTaskText will be truncated to the limit.
## Step 3: Implementation
```
VStack {
TextField("The next thing to do...", text: $subTaskText)
.font(.custom("Quicksand", size: 20))
.focused($isFocused)
.onReceive(Just(subTaskText)) { _ in limitText(textLimit) }
}
```
To implement the character limit function, we simply add the .OnReceive modifier to the TextField.
| troyhusted |
1,918,936 | Sugar Wax Haven | Address: 3030 S Rural Rd Suite 107a, Tempe, AZ 85282 Country - United States Phone: (623)... | 0 | 2024-07-10T19:47:21 | https://dev.to/sugar_waxhaven_7b4e3632e/sugar-wax-haven-aki | Address:
3030 S Rural Rd Suite 107a, Tempe, AZ 85282
Country - United States
Phone:
(623) 287-6139
Email:
sugarwaxhavenbacklink@gmail.com
Website:
https://sugarwaxhaven.com/
| sugar_waxhaven_7b4e3632e | |
1,918,937 | 100+ FREE Resources Every Web Developer Must Try | In this post, I’ll share 100+ free web development resources including APIs,hosting platforms,cheat... | 0 | 2024-07-10T19:48:18 | https://dev.to/agunwachidiebelecalistus/100-free-resources-every-web-developer-must-try-47ln | webdev, beginners, javascript, css | In this post, I’ll share 100+ free web development resources including APIs,hosting platforms,cheat sheets,icons,templates,fonts, color resources,learning platforms, CSS games,code editors and JavaScript animation libraries.
Let’s jump right into it!
**FREE Resources to Learn Web Development** 🔥
**Websites**
.[freeCodeCamp]
(https://www.freecodecamp.org/)
. [MDN Web Docs](https://developer.mozilla.org/en-US/)
. [W3School](https://www.w3schools.com/)
. [Scrimba]
(https://scrimba.com/)
. [Cadecademy]
(https://www.codecademy.com/)
. [TheOdinProject]
(https://www.theodinproject.com/)
. [Frontend Mentor]
(https://www.frontendmentor.io/)
. [JavaScript30]
(https://javascript30.com/)
. [Coursera]
(https://www.coursera.org/)
. [Khan Academy]
(https://www.khanacademy.org/)
**YouTube Channels**
. [Traversy Media]
(https://www.youtube.com/user/TechGuyWeb)
. [The Net Ninja]
(https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg)
. [Code With Harry]
(https://www.youtube.com/channel/UCeVMnSShP_Iviwkknt83cww)
. [Web Dev Simplified]
(https://www.youtube.com/channel/UCFbNIlppjAuEX4znoulh0Cw)
. [Coder Coder]
(https://www.youtube.com/channel/UCzNf0liwUzMN6_pixbQlMhQ)
. [The Coding Train]
(https://www.youtube.com/user/shiffman)
. [FreeCodeCamp]
(https://www.youtube.com/channel/UC8butISFwT-Wl7EV0hUK0BQ)
**FREE Hosting Platforms for Your Websites** 🔥
. [Netlify]
(https://www.netlify.com/) : Deploy your web projects with ease.
. [Render]
(https://render.com/) : Host web applications and static sites effortlessly.
. [GitHub Pages]
(https://pages.github.com/): Host your static websites directly from your GitHub repository.
. [Firebase Hosting]
(https://firebase.google.com/docs/hosting): Scale your web apps effortlessly with Firebase.
. [Vercel]
(https://vercel.com/): Deploy websites and applications with automatic deployments.
. [Cyclic.sh]
(http://cyclic.sh/): Host your static sites with zero configuration.
. [Appwrite]
(https://appwrite.io/): Open-source backend server for web and mobile developers.
. [Supabase]
(https://supabase.io/): Build modern apps with a scalable backend.
. [InfinityFree]
(https://infinityfree.net/): Free and unlimited web hosting with PHP, MySQL, and more.
. [Surge]
(https://surge.sh/): Static web publishing for front-end developers.
**FREE APIs for Your Projects** 🔥
. [OpenWeatherMap API]
(https://openweathermap.org/api): Access current weather data for any location.
. [News API]
(https://newsapi.org/): Retrieve live news articles from various sources.
. [REST Countries API]
(https://restcountries.com/): Get information about countries worldwide.
. [Chuck Norris Jokes API]
(https://api.chucknorris.io/): Lighten up your projects with Chuck Norris jokes.
. [Open Food Facts API]
(https://world.openfoodfacts.org/data): Access food product information and ingredients.
. [GitHub API]
(https://docs.github.com/en/rest): Integrate GitHub functionalities into your applications.
. [Reddit API]
(https://www.reddit.com/dev/api/): Fetch Reddit data, including posts and comments.
. [OneDrive API]
(https://docs.microsoft.com/en-us/onedrive/developer/rest-api/): Manage files and folders on Microsoft OneDrive.
. [Dogs API]
(https://thedogapi.com/): Bring adorable dog images and information to your projects.
. [GIPHY API]
(https://developers.giphy.com/docs/sdk): Integrate GIFs and stickers into your applications.
. [VirusTotal API]
(https://developers.virustotal.com/reference): Analyze suspicious files and URLs for malware.
. [NASA API]
(https://api.nasa.gov/): Access a wealth of NASA data, including imagery and information.
**FREE Sites for Vectors, Images, and Illustrations** 🔥
. [Freepik]
(https://www.freepik.com/): Discover free vectors, photos, PSDs, and icons.
. [Vecteezy]
(https://www.vecteezy.com/): Find high-quality vector art, graphics, and illustrations.
. [Unsplash]
(https://unsplash.com/): Access over a million free high-resolution photos.
. [Pixabay]
(https://pixabay.com/): Explore a vast library of free images and videos.
. [Flaticon]
(https://www.flaticon.com/): Download free icons, SVG, PSD, PNG, EPS format, or as ICON FONT.
. [Openclipart]
(https://openclipart.org/): Share and use free clipart and images.
. [SVGRepo]
(https://www.svgrepo.com/): Download SVGs for free.
. [Vectorportal]
(https://www.vectorportal.com/): Free vectors, clip art, and icons.
. [SVGBackgrounds]
(https://www.svgbackgrounds.com/): Customizable SVG patterns and backgrounds.
. [FreeDesignFile]
(https://freedesignfile.com/): High-quality graphic design resources.
. [Pexels]
(https://www.pexels.com/): Find free stock photos and videos shared by talented creators.
**FREE Icons for Your Projects** 🔥
. [FontAwesome](https://fontawesome.com/)
. [Flaticon]
(https://www.flaticon.com/)
. [IconFinder]
(https://www.iconfinder.com/)
. [MaterialIcon]
(https://material.io/resources/icons/)
. [Icons8]
(https://icons8.com/)
. [BoxIcons]
(https://boxicons.com/)
. [FeatherIcon]
(https://feathericons.com/)
. [IcoFont]
(https://icofont.com/)
. [SVGHUB]
(https://www.svghub.com/)
. [TablerIcon]
(https://tabler-icons.io/)
. [IconsMind]
(https://iconsmind.com/)
. [SVGRepo]
(https://www.svgrepo.com/)
**FREE Fonts for Your Projects** 🔥
. [Google Font]
(https://fonts.google.com/)
. [1001FreeFont]
(https://www.1001freefonts.com/)
. [FontJoy]
(https://fontjoy.com/)
. [Fontsly]
(https://www.fontsly.com/)
. [FontSpace]
(https://www.fontspace.com/)
. [AbstractFont]
(https://www.abstractfonts.com/)
. [FontZone]
(https://www.fontzone.net/)
. [DevFonts]
(https://devfonts.gafi.dev/)
. [DaFont]
(https://www.dafont.com/)
. [FontSquirrel]
(https://www.fontsquirrel.com/)
**FREE Color Resources for Your Projects** 🔥
. [Coolors]
(https://coolors.co/)
. [Paletton]
(http://paletton.com/)
. [Colorion]
(https://colorion.co/)
. [ColorHunt]
(https://colorhunt.co/)
. [ColorHexa]
(https://www.colorhexa.com/)
. [Adobe Color]
(https://color.adobe.com/create)
. [ColorMind]
(http://colormind.io/)
. [ColorPicker]
(https://www.colorpicker.com/)
. [ColorKit]
(https://colorkit.co/)
. [MyColor]
(https://mycolor.space/)
. [ColorHub]
(https://colorhub.app/)
**FREE Cheat Sheet Sites**🔥
. [HTML Cheat Sheet]
(https://htmlcheatsheet.com/): Quick reference guide for HTML elements and attributes.
. [CSS Cheat Sheet]
(https://websitesetup.org/css3-cheat-sheet/): Comprehensive guide to CSS properties and selectors.
. [JavaScript Cheat Sheet]
(https://javascript.info/): Handy reference for JavaScript syntax and concepts.
. [Git Cheat Sheet]
(https://education.github.com/git-cheat-sheet-education.pdf): Essential commands and workflows for Git.
. [Markdown Cheat Sheet]
(https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet): Markdown syntax guide for creating rich text formatting.
. [React Cheat Sheet]
(https://reactcheatsheet.com/): Quick overview of React concepts and syntax.
. [Learn x in y minutes]
(https://learnxinyminutes.com/): Concise tutorials to learn various programming languages and tools quickly.
. [SQL Cheat Sheet]
(https://sqlbolt.com/): Comprehensive SQL commands and queries reference.
. [OverAPI]
(https://overapi.com/): Collection of cheat sheets for various programming languages and frameworks.
**FREE Sites for HTML/CSS Templates** 🔥
. [HTML5UP]
(https://html5up.net/)
. [HTMLRev]
(https://www.htmlrev.com/)
. [Free-CSS]
(https://www.free-css.com/)
. [Templated]
(https://templated.co/)
. [FreeHTML5]
(https://freehtml5.co/)
. [Start Bootstrap]
(https://startbootstrap.com/)
. [BootstrapMade]
(https://bootstrapmade.com/)
. [Bootswatch]
(https://bootswatch.com/)
. [BootstrapTeste]
(https://bootstraptaste.com/)
. [Cruip]
(https://cruip.com/)
. [Tooplate]
(https://www.tooplate.com/)
. [HTML5xCSS3]
(https://www.html5xcss3.com/)
**Learn CSS by Playing Games** 🔥
. [CSS Diner]
(https://flukeout.github.io/): Practice CSS selectors with a fun game.
. [Flexbox Froggy]
(https://flexboxfroggy.com/): Learn CSS Flexbox by playing this game.
. [Grid Garden]
(https://cssgridgarden.com/): Master CSS Grid layout by playing this game.
. [Flexbox Defense]
(http://www.flexboxdefense.com/): A game to learn CSS Flexbox.
. [CSSBattle]
(https://cssbattle.dev/): Compete against others by writing CSS code.
. [Flexbox Zombies]
(https://mastery.games/flexboxzombies): Learn CSS Flexbox by playing this game.
**FREE Code Editors** 🔥
. [Visual Studio Code]
(https://code.visualstudio.com/) `(VS Code)`
. [Sublime Text]
(https://www.sublimetext.com/)
. [Brackets]
(http://brackets.io/)
. [Vim]
(https://www.vim.org/)
**JavaScript Animation Libraries** 🔥
. [Anime.js]
(https://animejs.com/): Lightweight JavaScript animation library.
. [ScrollReveal.js]
(https://scrollrevealjs.org/): Easily reveal elements as they enter the viewport.
. [Popmotion]
(https://popmotion.io/): A functional, flexible JavaScript motion library.
. [AniJS]
(https://anijs.github.io/): Declarative handling library for CSS animations.
. [Wow.js]
(https://wowjs.uk/): Reveal CSS animation as you scroll down a page.
. [Typed.js]
(https://mattboldt.com/demos/typed-js/): A JavaScript library that types.
. [Velocity.js]
(http://velocityjs.org/): Accelerated JavaScript animation.
. [GSAP]
(https://greensock.com/gsap/): Professional-grade animation for the modern web.
That’s all for today.
I hope it was helpful.
Thanks for reading.
Keep Coding!!👨🏽💻 | agunwachidiebelecalistus |
1,918,939 | Awnings San Diego | Address: 9252 Miramar Rd, San Diego, CA 92126, United States Phone: (877)... | 0 | 2024-07-10T19:49:58 | https://dev.to/awnings_sandiego_ebca2c9/awnings-san-diego-262j | Address:
9252 Miramar Rd, San Diego, CA 92126, United States
Phone:
(877) 391-0499
Website
https://awningsandiego.com/
| awnings_sandiego_ebca2c9 | |
1,918,940 | "Innovative Ecosystem for AI-Powered Art and NFTs" | "Empowering artists and developers with AI, blockchain, and web development... | 0 | 2024-07-10T19:50:44 | https://dev.to/nexusplus/innovative-ecosystem-for-ai-powered-art-and-nfts-2g36 | sacrediamondgeometrynfts, nfts, blockchain, polygon | "Empowering artists and developers with AI, blockchain, and web development tools."
Introduction
We're excited to introduce our groundbreaking project, an innovative ecosystem designed to merge AI-powered art generation, blockchain technology, and web development tools.
Our platform aims to empower artists, developers, and enthusiasts by providing a comprehensive suite of applications for creating, sharing, and
Project Overview
Our ecosystem consists of five interconnected applications:
1:Art Generation Tool Use AI to create stunning digital art based on user inputs.
2:Payment Processing System:
Handle cryptocurrency transactions securely and efficiently.
3:NFT Crafting Platform: Combine unique art elements to create and mint NFTs on the blockchain.
4:Social Network Share your creations, interact with other artists, and build a vibrant community.
5: Web Development Assistant: Streamline web development workflows with advanced tools and automation.
Who is This For?
Our platform is designed for:NFT Artists: Easily create and mint unique digital art and NFTs.
Developers: Access powerful tools to streamline your development workflows.
Art Enthusiasts: Discover and share amazing digital art within a supportive community.
Benefits
Innovative Tools: Leverage AI and blockchain technology to enhance your creative process.
Secure Transactions: Handle payments with ease and confidence using our integrated payment system.
Community Engagement: Connect with like-minded individuals and showcase your work.
Key Features:AI-Powered Art Generation: Create beautiful digital art with just a few clicks.
NFT Minting: Mint your creations as NFTs on the blockchain seamlessly.
Secure Payments: Process cryptocurrency transactions with top-notch security.
Community Platform: Share your work and connect with other artists and developers.
Development Tools: Access a suite of tools to optimize your web development projects.
Join me
us we invite you to join our growing community of artists, developers, and enthusiasts. Stay tuned for updates, or participate in our beta testing, and be among the first to experience the future of digital art and NFTs.
For more information about beta testing or to receive updates of the project email:
denissesanchezds@yahoo.com | nexusplus |
1,918,941 | Exploring AI Agents: Autonomous Helpers Transforming Our World | Artificial Intelligence (AI) is transforming our world in remarkable ways, with AI agents being at... | 0 | 2024-07-10T19:56:41 | https://dev.to/savagenewcanaan/exploring-ai-agents-autonomous-helpers-transforming-our-world-6g | <p style="text-align: justify;">Artificial Intelligence (AI) is transforming our world in remarkable ways, with AI agents being at the forefront of this technological revolution. But what exactly are AI agents, and how do they function? In this article, we'll delve into the fundamentals of AI agents, their types, applications, and the impact they have on various sectors.</p>
<h3 style="text-align: justify;">Understanding AI Agents</h3>
<p style="text-align: justify;">AI agents are software programs or systems that perform tasks autonomously or semi-autonomously. These agents are designed to perceive their environment, make decisions based on the data they gather, and take actions to achieve specific goals. They are the building blocks of many advanced AI systems and can be found in diverse applications, from virtual assistants to autonomous vehicles.</p>
<h3 style="text-align: justify;">Key Characteristics of AI Agents</h3>
<ol style="text-align: justify;">
<li>
<p><strong>Autonomy</strong>: AI agents operate independently without human intervention, making decisions and performing tasks based on pre-programmed rules and learning algorithms.</p>
</li>
<li>
<p><strong>Perception</strong>: They gather data from their environment using sensors or data inputs. This information is then processed to understand the context and make informed decisions.</p>
</li>
<li>
<p><strong>Learning</strong>: Many AI agents are equipped with machine learning capabilities, allowing them to improve their performance over time by learning from past experiences and data.</p>
</li>
<li>
<p><strong>Adaptability</strong>: AI agents can adapt to changing environments and situations, modifying their behavior to achieve their goals more effectively.</p>
</li>
<li>
<p><strong>Interaction</strong>: They can interact with other agents, systems, and humans, often using natural language processing and other communication techniques.</p>
</li>
</ol>
<h3 style="text-align: justify;">Types of AI Agents</h3>
<p style="text-align: justify;">AI agents can be broadly classified into several types based on their complexity and functionality:</p>
<ol style="text-align: justify;">
<li>
<p><strong>Reactive Agents</strong>: These agents respond to specific stimuli from their environment without considering past experiences. They operate based on a set of predefined rules and do not have the capability to learn or adapt. An example would be a thermostat that adjusts temperature based on current readings.</p>
</li>
<li>
<p><strong>Model-Based Agents</strong>: These agents maintain an internal model of the world and use it to make decisions. They consider past experiences and predict future states to determine the best course of action. Autonomous robots often use model-based agents to navigate and interact with their surroundings.</p>
</li>
<li>
<p><strong>Goal-Based Agents</strong>: These agents take actions to achieve specific goals. They evaluate different possible actions based on their outcomes and select the ones that best achieve their objectives. An example would be a chess-playing AI that plans its moves to win the game.</p>
</li>
<li>
<p><strong>Utility-Based Agents</strong>: These agents make decisions based on a utility function that measures the desirability of different states. They aim to maximize their utility, balancing short-term and long-term benefits. Financial trading bots often use utility-based models to optimize investment strategies.</p>
</li>
<li>
<p><strong>Learning Agents</strong>: These agents improve their performance over time through learning. They can modify their behavior based on new data and experiences, becoming more effective in achieving their goals. Machine learning algorithms, such as neural networks, power many learning agents.</p>
</li>
</ol>
<h3 style="text-align: justify;">Applications of AI Agents</h3>
<p style="text-align: justify;">AI agents are used in a wide range of applications across various industries:</p>
<ol style="text-align: justify;">
<li>
<p><strong>Virtual Assistants</strong>: AI agents like Siri, Alexa, and Google Assistant help users with tasks such as setting reminders, answering questions, and controlling smart home devices.</p>
</li>
<li>
<p><strong>Autonomous Vehicles</strong>: Self-driving cars use AI agents to perceive their environment, make driving decisions, and navigate safely.</p>
</li>
<li>
<p><strong>Healthcare</strong>: AI agents assist in diagnosing diseases, recommending treatments, and managing patient care. They analyze medical data to provide insights and support clinical decisions.</p>
</li>
<li>
<p><strong>Finance</strong>: AI agents are employed in algorithmic trading, fraud detection, and customer service. They analyze market trends, execute trades, and provide financial advice.</p>
</li>
<li>
<p><strong>Customer Support</strong>: Chatbots and virtual agents handle customer inquiries, providing quick and accurate responses, and improving customer satisfaction.</p>
</li>
<li>
<p><strong>Gaming</strong>: AI agents enhance gaming experiences by controlling non-player characters (NPCs) and creating dynamic, responsive game environments.</p>
</li>
</ol>
<h3 style="text-align: justify;">The Impact of AI Agents</h3>
<p style="text-align: justify;">AI agents are revolutionizing many aspects of our lives, driving efficiency, innovation, and new possibilities. However, their rise also brings challenges and considerations:</p>
<ol style="text-align: justify;">
<li>
<p><strong>Ethical and Bias Issues</strong>: Ensuring that AI agents operate ethically and without bias is crucial. Transparent and fair AI systems are necessary to avoid discrimination and maintain public trust.</p>
</li>
<li>
<p><strong>Security and Privacy</strong>: Protecting the data and privacy of users interacting with AI agents is paramount. Robust security measures must be in place to prevent data breaches and misuse.</p>
</li>
<li>
<p><strong>Job Displacement</strong>: While AI agents can automate repetitive tasks, there is a concern about job displacement. It's essential to address the impact on the workforce and explore opportunities for reskilling and new job creation.</p>
</li>
</ol>
<p style="text-align: justify;">AI agents are powerful tools that have the potential to transform numerous sectors, from healthcare to finance to everyday personal tasks. By understanding their capabilities, types, and applications, we can better appreciate the ways in which they can enhance our lives. As we continue to develop and integrate AI agents into our world, it’s important to address the ethical, security, and societal implications to ensure that these technologies benefit everyone.</p> | savagenewcanaan | |
1,918,942 | JavaScript Basics: Understanding Syntax and Structure | JavaScript Basics: Understanding Syntax and Structure Welcome back to our "JavaScript: From Novice... | 27,941 | 2024-07-11T09:00:00 | https://dev.to/buildwebcrumbs/javascript-basics-understanding-syntax-and-structure-5d9b | javascript, beginners, programming, codenewbie |
JavaScript Basics: Understanding Syntax and Structure
Welcome back to our "JavaScript: From Novice to Expert" series!
Today, we’re diving into the core of JavaScript—its syntax and structure. Understanding these basics is super important for any developer starting out.
By the end of this article, you'll be familiar with how to write basic JavaScript code, including defining variables, using data types, creating functions, and controlling the flow of your program.
---
## What is JavaScript Syntax?
Syntax refers to the set of rules that define how code is written and interpreted. In JavaScript, as in any language, following these rules ensures that your programs run correctly. We will explore how to write statements, use operators, and organize your code effectively.
### **1. Writing Your First JavaScript Statement**
Let’s start with a simple statement in JavaScript:
```javascript
console.log('Hello, world!');
```
This line of code outputs 'Hello, world!' to the console, a basic yet powerful way to begin our JavaScript journey.
### **2. Variables and Data Types**
Variables are fundamental to any programming language. They allow you to store information. In JavaScript, you can declare a variable using `let`, `const`, or `var`:
```javascript
let message = 'Hello, world!';
const PI = 3.14;
```
JavaScript is dynamically typed, but it supports several data types:
**- String:** Textual data enclosed in quotes. Example: 'Hello, world!'
**- Number:** Numeric data, without distinction between integers and floats. Example: 42, 3.14
**- BigInt:** An integer with arbitrary precision. Useful for very large numbers. Example: 9007199254740991n
**- Boolean:** Represents a logical entity and can have two values: true and false.
**- Null and Undefined:** null represents a deliberate absence of any object value; undefined represents a variable that has not been assigned a value.
**- Symbol:** A unique and immutable primitive value, often used for object properties to provide a unique identifier for property keys.
### **3. Creating Functions**
Functions are blocks of code designed to perform particular tasks, reusable throughout your scripts:
```javascript
function greet(name) {
console.log('Hello, ' + name);
}
greet('Alice');
```
This function `greet` takes a parameter `name` and prints a greeting message to the console.
### **4. Control Structures**
Control structures manage the flow of your code. Here are basic examples:
- **If statement:**
```javascript
if (message === 'Hello, world!') {
console.log('That’s the basic greeting.');
}
```
- **For loop:**
```javascript
for (let i = 0; i < 5; i++) {
console.log(i);
}
```
---
## Baby steps ⭐
Congratulations!
You now understand the basic syntax and structure of JavaScript.
These elements are the building blocks from which all JavaScript applications are built. Keep practicing these concepts, and you will become more comfortable with more complex scripts and applications.
Continue to explore and experiment with what you have learned today.
Don’t forget to check back for our next article, where we will learn about debugging tools and techniques.
---
**If you enjoyed this series, show your support by giving a star to our [GitHub repository](https://github.com/webcrumbs-community/webcrumbs/pulls). We are building the modern web, together.**
Thanks for reading!
Pachi 🥑 | pachicodes |
1,918,943 | Mastering Dependency Management with Architect: Tips and Best Practices | In today’s software development landscape, managing dependencies effectively is crucial for building... | 0 | 2024-07-10T19:59:57 | https://dev.to/joswellahwasike/mastering-dependency-management-with-architect-tips-and-best-practices-1j17 | In today’s software development landscape, managing dependencies effectively is crucial for building reliable and scalable applications. This task becomes even more complex in cloud environments where applications often rely on a multitude of services, APIs, and databases. Architect, with its robust dependency-aware features, offers a powerful solution for managing dependencies seamlessly. This article delves into the intricacies of dependency management in cloud environments using Architect, providing practical tips, best practices, and highlighting common pitfalls to avoid.
## Understanding Dependency Management in Cloud Environments
**What is Dependency Management?**
Dependency management involves tracking, updating, and resolving dependencies that an application requires to function correctly. These dependencies can include libraries, frameworks, APIs, databases, and other external services.
Effective dependency management ensures that all components of an application work together harmoniously, reducing the risk of conflicts and runtime errors.
## Challenges of Dependency Management in the Cloud
Managing dependencies in cloud environments presents unique challenges:
* **Scalability:** Cloud applications often need to scale dynamically, requiring dependencies to scale accordingly.
* **Version Control:** Ensuring compatibility between different versions of dependencies can be challenging, especially when multiple services interact.
* **Security:** Dependencies must be regularly updated to mitigate security vulnerabilities.
* **Complexity:** The distributed nature of cloud applications adds complexity to dependency management, with various services relying on different sets of dependencies.
## The Role of Architect in Dependency Management
Architect simplifies dependency management by providing a dependency-aware platform that automatically manages and resolves dependencies for cloud applications.
Architect integrates with CI/CD pipelines, ensuring that every deployment is production-grade and includes all necessary components such as APIs, databases, and event systems.
## Architect's Dependency-Aware Features
**Automatic Dependency Resolution**
Architect's platform automatically resolves dependencies, ensuring that all required components are available and correctly configured for each deployment. This reduces the risk of missing or incompatible dependencies, streamlining the development and deployment process.
### Environment-Specific Configurations
Architect supports environment-specific configurations, allowing developers to define dependencies for different environments (development, staging, production). This ensures consistency across environments while catering to the unique requirements of each stage.
**Version Management**
Architect provides robust version management, allowing developers to specify exact versions of dependencies or use semantic versioning to ensure compatibility. This helps in maintaining stability and reducing the likelihood of version conflicts.
**Integrated Monitoring and Logging**
Architect integrates monitoring and logging features that provide insights into dependency performance and issues. This enables proactive management and quick resolution of any dependency-related problems.
### Practical Tips for Effective Dependency Management
**Tip 1: Use Semantic Versioning**
Semantic versioning is a versioning scheme that uses a three-part version number: MAJOR.MINOR.PATCH (e.g., 1.2.3). This scheme helps in understanding the impact of changes in dependencies:
* **MAJOR:** Breaking changes that are not backward-compatible.
* **MINOR:** New features that are backward-compatible.
* **PATCH:** Bug fixes and minor improvements that are backward-compatible.
Using semantic versioning helps maintain compatibility and provides clarity on the nature of changes in dependencies.
## Tip 2: Isolate Dependencies in Containers
Containerization isolates dependencies within individual containers, ensuring that each service has its own set of dependencies. This reduces the risk of conflicts and makes it easier to manage and update dependencies independently. Docker is a popular tool for containerization.
### Example: Dockerfile for a Node.js Application
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["node", "app.js"]
```
This Dockerfile sets up a Node.js application with its dependencies isolated within a container.
**Tip 3: Regularly Update Dependencies**
Keeping dependencies up-to-date is crucial for security and performance. Regular updates help in mitigating security vulnerabilities and taking advantage of the latest features and improvements.
## Automated Dependency Updates with Dependabot
Dependabot is a tool that automatically checks for dependency updates and creates pull requests to update them. Integrating Dependabot into your CI/CD pipeline ensures that your dependencies are always current.
### Tip 4: Monitor and Log Dependency Performance
Monitoring and logging are essential for identifying and resolving dependency-related issues. Tools like Prometheus and Grafana can provide real-time insights into dependency performance and health.
**Example: Monitoring with Prometheus and Grafana**
1. **Prometheus Configuration:**
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'node'
static_configs:
- targets: ['localhost:9090']
```
2. **Grafana Dashboard:**
Create a Grafana dashboard to visualize the metrics collected by Prometheus, providing a comprehensive view of dependency performance.
**Tip 5: Implement Robust CI/CD Pipelines**
CI/CD pipelines automate the process of building, testing, and deploying applications. Integrating dependency management into CI/CD pipelines ensures that dependencies are consistently managed across all stages of development and deployment.
**Example: CI/CD Pipeline with GitHub Actions**
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install dependencies
run: npm install
- name: Run tests
run: npm test
- name: Build application
run: npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
This GitHub Actions workflow automates the process of installing dependencies, running tests, building the application, and deploying it to production.
### Case Study: A Real-World Example
**Scenario: Deploying a Full-Stack Application with Architect**
* Overview:
A team of developers is tasked with deploying a full-stack application using Architect. The application consists of a Node.js backend, a React frontend, and a PostgreSQL database. The goal is to ensure seamless dependency management across development, staging, and production environments.
**Step 1: Setting Up the DevelopmentEnvironment**
1. **Initialize the Project:**
```bash
mkdir fullstack-app
cd fullstack-app
architect init
```
2. **Create Dockerfiles for Backend and Frontend:**
* Backend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY backend/package*.json ./
RUN npm install
COPY backend/ .
CMD ["node", "server.js"]
```
*Frontend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ .
CMD ["npm", "start"]
```
3. **Define Services in architect.yml:**
```yaml
services:
backend:
image: backend-image
build:
context: .
dockerfile: backend/Dockerfile
environment:
DATABASE_URL: ${DATABASE_URL}
API_KEY: ${API_KEY}
ports:
- 4000:4000
frontend:
image: frontend-image
build:
context: .
dockerfile: frontend/Dockerfile
ports:
- 3000:3000
database:
image: postgres:13
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: password
POSTGRES_DB: appdb
ports:
- 5432:5432
```
**Step 2: Configuring Dependencies**
1. Specify Environment Variables:
env
DATABASE_URL=postgres://user:password@localhost:5432/appdb
API_KEY=your_api_key
2. Install Dependencies:
```bash
architect install
```
**Step 3: Deploying to Different Environments**
1. Deploy to Development:
```bash
architect deploy dev
```
2. Promote to Staging:
```bash
architect promote dev staging
```
3. Deploy to Production:
```bash
architect deploy production
```
**Step 4: Monitoring and Logging**
1. Set Up Prometheus and Grafana:
* Prometheus Configuration:
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'backend'
static_configs:
- targets: ['backend:4000']
- job_name: 'frontend'
static_configs:
- targets: ['frontend:3000']
```
2. Create Grafana Dashboard:
* Add Prometheus as a data source in Grafana.
* Create visualizations to monitor backend and frontend performance.
**Step 5: Implementing CI/CD Pipeline**
1. GitHub Actions Workflow:
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install backend dependencies
run: cd backend && npm install
- name: Install frontend dependencies
run: cd frontend && npm install
- name: Run backend tests
run: cd backend && npm test
- name: Run frontend tests
run: cd frontend && npm test
- name: Build backend
run: cd backend && npm run build
- name: Build frontend
run: cd frontend && npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
### Common Pitfalls and How to Avoid Them
**Pitfall 1: Ignoring Dependency Updates**
Ignoring dependency updates can lead to security vulnerabilities and compatibility issues. Regularly updating dependencies ensures that your application remains secure and performs optimally.
**Solution:**
* Automate Updates: Use tools like Dependabot to automate dependency updates.
* Scheduled Maintenance: Allocate time for regular maintenance and updates.
### Pitfall 2: Overcomplicating Dependency Management
Overcomplicating dependency management by adding unnecessary dependencies or not isolating them properly can lead to conflicts and increased complexity.
**Solution:**
* Minimal Dependencies: Only include essential dependencies.
* Isolation: Use containerization to isolate dependencies for different services.
### Pitfall 3: Inconsistent Environments
Inconsistent environments between development, staging, and production can cause unexpected issues and make troubleshooting difficult.
**Solution:**
* Environment Parity: Ensure that all environments are as similar as possible.
* Infrastructure as Code (IaC): Use tools like Terraform or CloudFormation to manage infrastructure consistently across environments.
### Pitfall 4: Lack of Monitoring
Failing to monitor dependencies can lead to undetected issues and poor performance.
**Solution:**
* Comprehensive Monitoring: Implement monitoring and logging for all dependencies.
* Proactive Management: Regularly review monitoring data and address any issues promptly.
### Conclusion
Managing dependencies in cloud environments is a complex but crucial aspect of modern software development. Architect’s dependency-aware features provide a robust solution for handling dependencies effectively, ensuring that your application is stable, secure, and performant. By following the tips and best practices outlined in this article, you can master dependency management and avoid common pitfalls, paving the way for successful and efficient deployments.
Embrace the power of Architect to streamline your dependency management process and focus on building innovative and scalable applications. Join the Architect community, leverage its powerful tools, and elevate your development workflow to new heights. Happy coding!
| joswellahwasike | |
1,918,944 | Mastering Dependency Management with Architect: Tips and Best Practices | In today’s software development landscape, managing dependencies effectively is crucial for building... | 0 | 2024-07-10T19:59:58 | https://dev.to/joswellahwasike/mastering-dependency-management-with-architect-tips-and-best-practices-3m29 | In today’s software development landscape, managing dependencies effectively is crucial for building reliable and scalable applications. This task becomes even more complex in cloud environments where applications often rely on a multitude of services, APIs, and databases. Architect, with its robust dependency-aware features, offers a powerful solution for managing dependencies seamlessly. This article delves into the intricacies of dependency management in cloud environments using Architect, providing practical tips, best practices, and highlighting common pitfalls to avoid.
## Understanding Dependency Management in Cloud Environments
**What is Dependency Management?**
Dependency management involves tracking, updating, and resolving dependencies that an application requires to function correctly. These dependencies can include libraries, frameworks, APIs, databases, and other external services.
Effective dependency management ensures that all components of an application work together harmoniously, reducing the risk of conflicts and runtime errors.
## Challenges of Dependency Management in the Cloud
Managing dependencies in cloud environments presents unique challenges:
* **Scalability:** Cloud applications often need to scale dynamically, requiring dependencies to scale accordingly.
* **Version Control:** Ensuring compatibility between different versions of dependencies can be challenging, especially when multiple services interact.
* **Security:** Dependencies must be regularly updated to mitigate security vulnerabilities.
* **Complexity:** The distributed nature of cloud applications adds complexity to dependency management, with various services relying on different sets of dependencies.
## The Role of Architect in Dependency Management
Architect simplifies dependency management by providing a dependency-aware platform that automatically manages and resolves dependencies for cloud applications.
Architect integrates with CI/CD pipelines, ensuring that every deployment is production-grade and includes all necessary components such as APIs, databases, and event systems.
## Architect's Dependency-Aware Features
**Automatic Dependency Resolution**
Architect's platform automatically resolves dependencies, ensuring that all required components are available and correctly configured for each deployment. This reduces the risk of missing or incompatible dependencies, streamlining the development and deployment process.
### Environment-Specific Configurations
Architect supports environment-specific configurations, allowing developers to define dependencies for different environments (development, staging, production). This ensures consistency across environments while catering to the unique requirements of each stage.
**Version Management**
Architect provides robust version management, allowing developers to specify exact versions of dependencies or use semantic versioning to ensure compatibility. This helps in maintaining stability and reducing the likelihood of version conflicts.
**Integrated Monitoring and Logging**
Architect integrates monitoring and logging features that provide insights into dependency performance and issues. This enables proactive management and quick resolution of any dependency-related problems.
### Practical Tips for Effective Dependency Management
**Tip 1: Use Semantic Versioning**
Semantic versioning is a versioning scheme that uses a three-part version number: MAJOR.MINOR.PATCH (e.g., 1.2.3). This scheme helps in understanding the impact of changes in dependencies:
* **MAJOR:** Breaking changes that are not backward-compatible.
* **MINOR:** New features that are backward-compatible.
* **PATCH:** Bug fixes and minor improvements that are backward-compatible.
Using semantic versioning helps maintain compatibility and provides clarity on the nature of changes in dependencies.
## Tip 2: Isolate Dependencies in Containers
Containerization isolates dependencies within individual containers, ensuring that each service has its own set of dependencies. This reduces the risk of conflicts and makes it easier to manage and update dependencies independently. Docker is a popular tool for containerization.
### Example: Dockerfile for a Node.js Application
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["node", "app.js"]
```
This Dockerfile sets up a Node.js application with its dependencies isolated within a container.
**Tip 3: Regularly Update Dependencies**
Keeping dependencies up-to-date is crucial for security and performance. Regular updates help in mitigating security vulnerabilities and taking advantage of the latest features and improvements.
## Automated Dependency Updates with Dependabot
Dependabot is a tool that automatically checks for dependency updates and creates pull requests to update them. Integrating Dependabot into your CI/CD pipeline ensures that your dependencies are always current.
### Tip 4: Monitor and Log Dependency Performance
Monitoring and logging are essential for identifying and resolving dependency-related issues. Tools like Prometheus and Grafana can provide real-time insights into dependency performance and health.
**Example: Monitoring with Prometheus and Grafana**
1. **Prometheus Configuration:**
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'node'
static_configs:
- targets: ['localhost:9090']
```
2. **Grafana Dashboard:**
Create a Grafana dashboard to visualize the metrics collected by Prometheus, providing a comprehensive view of dependency performance.
**Tip 5: Implement Robust CI/CD Pipelines**
CI/CD pipelines automate the process of building, testing, and deploying applications. Integrating dependency management into CI/CD pipelines ensures that dependencies are consistently managed across all stages of development and deployment.
**Example: CI/CD Pipeline with GitHub Actions**
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install dependencies
run: npm install
- name: Run tests
run: npm test
- name: Build application
run: npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
This GitHub Actions workflow automates the process of installing dependencies, running tests, building the application, and deploying it to production.
### Case Study: A Real-World Example
**Scenario: Deploying a Full-Stack Application with Architect**
* Overview:
A team of developers is tasked with deploying a full-stack application using Architect. The application consists of a Node.js backend, a React frontend, and a PostgreSQL database. The goal is to ensure seamless dependency management across development, staging, and production environments.
**Step 1: Setting Up the DevelopmentEnvironment**
1. **Initialize the Project:**
```bash
mkdir fullstack-app
cd fullstack-app
architect init
```
2. **Create Dockerfiles for Backend and Frontend:**
* Backend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY backend/package*.json ./
RUN npm install
COPY backend/ .
CMD ["node", "server.js"]
```
*Frontend Dockerfile:
```dockerfile
FROM node:14
WORKDIR /usr/src/app
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ .
CMD ["npm", "start"]
```
3. **Define Services in architect.yml:**
```yaml
services:
backend:
image: backend-image
build:
context: .
dockerfile: backend/Dockerfile
environment:
DATABASE_URL: ${DATABASE_URL}
API_KEY: ${API_KEY}
ports:
- 4000:4000
frontend:
image: frontend-image
build:
context: .
dockerfile: frontend/Dockerfile
ports:
- 3000:3000
database:
image: postgres:13
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: password
POSTGRES_DB: appdb
ports:
- 5432:5432
```
**Step 2: Configuring Dependencies**
1. Specify Environment Variables:
env
DATABASE_URL=postgres://user:password@localhost:5432/appdb
API_KEY=your_api_key
2. Install Dependencies:
```bash
architect install
```
**Step 3: Deploying to Different Environments**
1. Deploy to Development:
```bash
architect deploy dev
```
2. Promote to Staging:
```bash
architect promote dev staging
```
3. Deploy to Production:
```bash
architect deploy production
```
**Step 4: Monitoring and Logging**
1. Set Up Prometheus and Grafana:
* Prometheus Configuration:
```yaml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'backend'
static_configs:
- targets: ['backend:4000']
- job_name: 'frontend'
static_configs:
- targets: ['frontend:3000']
```
2. Create Grafana Dashboard:
* Add Prometheus as a data source in Grafana.
* Create visualizations to monitor backend and frontend performance.
**Step 5: Implementing CI/CD Pipeline**
1. GitHub Actions Workflow:
```yaml
name: CI/CD Pipeline
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up Node.js
uses: actions/setup-node@v2
with:
node-version: '14'
- name: Install backend dependencies
run: cd backend && npm install
- name: Install frontend dependencies
run: cd frontend && npm install
- name: Run backend tests
run: cd backend && npm test
- name: Run frontend tests
run: cd frontend && npm test
- name: Build backend
run: cd backend && npm run build
- name: Build frontend
run: cd frontend && npm run build
- name: Deploy to production
if: github.ref == 'refs/heads/main'
run: npm run deploy
```
### Common Pitfalls and How to Avoid Them
**Pitfall 1: Ignoring Dependency Updates**
Ignoring dependency updates can lead to security vulnerabilities and compatibility issues. Regularly updating dependencies ensures that your application remains secure and performs optimally.
**Solution:**
* Automate Updates: Use tools like Dependabot to automate dependency updates.
* Scheduled Maintenance: Allocate time for regular maintenance and updates.
### Pitfall 2: Overcomplicating Dependency Management
Overcomplicating dependency management by adding unnecessary dependencies or not isolating them properly can lead to conflicts and increased complexity.
**Solution:**
* Minimal Dependencies: Only include essential dependencies.
* Isolation: Use containerization to isolate dependencies for different services.
### Pitfall 3: Inconsistent Environments
Inconsistent environments between development, staging, and production can cause unexpected issues and make troubleshooting difficult.
**Solution:**
* Environment Parity: Ensure that all environments are as similar as possible.
* Infrastructure as Code (IaC): Use tools like Terraform or CloudFormation to manage infrastructure consistently across environments.
### Pitfall 4: Lack of Monitoring
Failing to monitor dependencies can lead to undetected issues and poor performance.
**Solution:**
* Comprehensive Monitoring: Implement monitoring and logging for all dependencies.
* Proactive Management: Regularly review monitoring data and address any issues promptly.
### Conclusion
Managing dependencies in cloud environments is a complex but crucial aspect of modern software development. Architect’s dependency-aware features provide a robust solution for handling dependencies effectively, ensuring that your application is stable, secure, and performant. By following the tips and best practices outlined in this article, you can master dependency management and avoid common pitfalls, paving the way for successful and efficient deployments.
Embrace the power of Architect to streamline your dependency management process and focus on building innovative and scalable applications. Join the Architect community, leverage its powerful tools, and elevate your development workflow to new heights. Happy coding!
| joswellahwasike | |
1,918,945 | Typescript Coding Chronicles: Can Place Flowers | Problem Statement: You have a long flowerbed in which some of the plots are planted, and... | 0 | 2024-07-10T20:02:03 | https://dev.to/__zamora__/typescript-coding-chronicles-can-place-flowers-4mhb | webdev, javascript, programming, typescript | ## Problem Statement:
You have a long flowerbed in which some of the plots are planted, and some are not. However, flowers cannot be planted in adjacent plots.
Given an integer array `flowerbed` containing 0's and 1's, where 0 means empty and 1 means not empty, and an integer `n`, return `true` if `n` new flowers can be planted in the flowerbed without violating the no-adjacent-flowers rule and `false` otherwise.
### Example 1:
- Input: `flowerbed = [1,0,0,0,1]`, `n = 1`
- Output: `true`
### Example 2:
- Input: `flowerbed = [1,0,0,0,1]`, `n = 2`
- Output: `false`
### Constraints:
- `1 <= flowerbed.length <= 2 * 10^4`
- `flowerbed[i]` is 0 or 1.
- There are no two adjacent flowers in flowerbed.
- `0 <= n <= flowerbed.length`
## Initial Thought Process:
To solve this problem, we need to iterate through the flowerbed and check each position to determine if a flower can be planted. If a position is empty (0) and both adjacent positions are either empty or out of bounds, we can plant a flower there.
## Basic Solution:
### Code:
```typescript
function canPlaceFlowersBruteForce(flowerbed: number[], n: number): boolean {
let count = 0;
for (let i = 0; i < flowerbed.length; i++) {
if (flowerbed[i] === 0) {
let prevEmpty = (i === 0) || (flowerbed[i - 1] === 0);
let nextEmpty = (i === flowerbed.length - 1) || (flowerbed[i + 1] === 0);
if (prevEmpty && nextEmpty) {
flowerbed[i] = 1;
count++;
if (count >= n) {
return true;
}
}
}
}
return count >= n;
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n^2), where n is the length of the flowerbed array. The inner loop effectively makes this approach less efficient.
- **Space Complexity:** O(1), as we are modifying the flowerbed array in place and using only a constant amount of extra space.
### Limitations:
The brute force solution is not optimal for larger input sizes due to its higher time complexity.
## Optimized Solution:
The optimized solution will still iterate through the flowerbed array but will skip unnecessary checks by moving to the position after the next one once a flower is planted, ensuring we do not plant adjacent flowers.
### Code:
```typescript
function canPlaceFlowersOptimized(flowerbed: number[], n: number): boolean {
let count = 0;
let i = 0;
while (i < flowerbed.length) {
if (flowerbed[i] === 0 &&
(i === 0 || flowerbed[i - 1] === 0) &&
(i === flowerbed.length - 1 || flowerbed[i + 1] === 0)) {
flowerbed[i] = 1; // Plant a flower here
count++;
i += 2; // Move to the position after the next one
} else {
i++;
}
if (count >= n) {
return true;
}
}
return count >= n;
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the length of the flowerbed array. We iterate through the flowerbed array once.
- **Space Complexity:** O(1), as we are modifying the flowerbed array in place and using only a constant amount of extra space.
### Improvements Over Basic Solution:
- The optimized solution skips unnecessary checks by moving to the position after the next one once a flower is planted, ensuring we do not plant adjacent flowers.
## Edge Cases and Testing:
### Edge Cases:
1. The flowerbed is entirely empty.
2. The flowerbed has alternating empty and non-empty plots.
3. `n` is 0, meaning no new flowers need to be planted.
4. `n` is larger than the possible number of plantable positions in the flowerbed.
### Test Cases:
```typescript
console.log(canPlaceFlowersBruteForce([1,0,0,0,1], 1)); // true
console.log(canPlaceFlowersBruteForce([1,0,0,0,1], 2)); // false
console.log(canPlaceFlowersBruteForce([0,0,1,0,0], 1)); // true
console.log(canPlaceFlowersBruteForce([0,0,1,0,0], 2)); // true
console.log(canPlaceFlowersBruteForce([0,0,1,0,1], 1)); // false
console.log(canPlaceFlowersBruteForce([1,0,0,0,0,1], 1)); // true
console.log(canPlaceFlowersBruteForce([1,0,0,0,0,1], 2)); // false
console.log(canPlaceFlowersBruteForce([0,0,0,0,0,0], 3)); // true
console.log(canPlaceFlowersBruteForce([0,0,0,0,0,0], 4)); // false
console.log(canPlaceFlowersOptimized([1,0,0,0,1], 1)); // true
console.log(canPlaceFlowersOptimized([1,0,0,0,1], 2)); // false
console.log(canPlaceFlowersOptimized([0,0,1,0,0], 1)); // true
console.log(canPlaceFlowersOptimized([0,0,1,0,0], 2)); // true
console.log(canPlaceFlowersOptimized([0,0,1,0,1], 1)); // false
console.log(canPlaceFlowersOptimized([1,0,0,0,0,1], 1)); // true
console.log(canPlaceFlowersOptimized([1,0,0,0,0,1], 2)); // false
console.log(canPlaceFlowersOptimized([0,0,0,0,0,0], 3)); // true
console.log(canPlaceFlowersOptimized([0,0,0,0,0,0], 4)); // false
```
## General Problem-Solving Strategies:
1. **Understand the Problem:** Carefully read the problem statement to understand the requirements and constraints.
2. **Identify Key Operations:** Determine the key operations needed, such as checking adjacent plots and planting flowers.
3. **Optimize for Readability:** Use clear and concise logic to ensure the code is easy to follow.
4. **Test Thoroughly:** Test the solution with various cases, including edge cases, to ensure correctness.
## Identifying Similar Problems:
1. **Array Manipulation:**
- Problems where you need to modify elements of an array based on specific conditions.
- Example: Moving zeros to the end of an array.
2. **Greedy Algorithms:**
- Problems where a greedy approach can be used to find an optimal solution by making the best choice at each step.
- Example: Interval scheduling to find the maximum number of non-overlapping intervals.
3. **Simulation Problems:**
- Problems where you need to simulate a process step-by-step based on given rules.
- Example: Simulating the spread of a virus in a population represented by an array.
## Conclusion:
- The problem of determining if new flowers can be planted in a flowerbed without violating the no-adjacent-flowers rule can be efficiently solved using both a brute force approach and an optimized approach.
- Understanding the problem and breaking it down into manageable parts is crucial.
- Using clear logic and optimizing for readability ensures the solution is easy to follow.
- Testing with various edge cases ensures robustness.
- Recognizing patterns in problems can help apply similar solutions to other challenges.
By practicing such problems and strategies, you can improve your problem-solving skills and be better prepared for various coding challenges. | __zamora__ |
1,918,946 | How to Invoke AWS Lambda Functions from Amazon SQS Message | To invoke AWS Lambda functions from an Amazon SQS (Simple Queue Service) message, you need to... | 0 | 2024-07-10T20:06:02 | https://dev.to/albine_peter_c2ffb10b422f/how-to-invoke-aws-lambda-functions-from-amazon-sqs-message-1npg | aws, cloud, architecture, cloudcomputing |
**To invoke AWS Lambda functions from an Amazon SQS (Simple Queue Service) message, you need to create an event source mapping that connects the SQS queue to the Lambda function.**
**I have used this code :**
import json
def lambda_handler(event, context):
for record in event['Records']:
# SQS message body
body = record['body']
print(f"Message Body: {body}")
# Process the message here
# ...
return {
'statusCode': 200,
'body': json.dumps('Success')
}
1. Create an SQS Queue
2. Create an AWS Lambda Function
3. Set Up Event Source Mapping
4. Grant Permissions
**Summary:**
By following these steps, your Lambda function will be invoked whenever a new message is sent to your SQS queue. The Lambda function will process the messages as they arrive, allowing you to handle them asynchronously.
If you have specific requirements or configurations, feel free to share, and I can provide more detailed guidance. | albine_peter_c2ffb10b422f |
1,918,947 | Typescript Coding Chronicles: Reverse Vowels of a String | Problem Statement: Given a string s, reverse only all the vowels in the string and return... | 0 | 2024-07-10T20:12:09 | https://dev.to/__zamora__/typescript-coding-chronicles-reverse-vowels-of-a-string-2c9p | webdev, javascript, programming, typescript | ## Problem Statement:
Given a string `s`, reverse only all the vowels in the string and return it.
The vowels are 'a', 'e', 'i', 'o', and 'u', and they can appear in both lower and upper cases, more than once.
### Example 1:
- Input: `s = "hello"`
- Output: `"holle"`
### Example 2:
- Input: `s = "leetcode"`
- Output: `"leotcede"`
### Constraints:
- `1 <= s.length <= 3 * 10^5`
- `s` consists of printable ASCII characters.
## Initial Thought Process:
To solve this problem, we need to identify all the vowels in the string, reverse their order, and then place them back in their original positions. This can be done using two approaches:
1. Brute Force Approach: Extract vowels, reverse them, and replace them in the string.
2. Two-Pointer Approach: Use two pointers to reverse vowels in place.
## Basic Solution:
### Code:
```typescript
function reverseVowelsBruteForce(s: string): string {
const vowels = new Set(['a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U']);
let vowelList: string[] = [];
// Extract vowels from the string
for (let char of s) {
if (vowels.has(char)) {
vowelList.push(char);
}
}
// Reverse the list of vowels
vowelList.reverse();
// Create a result array to build the output string
let result: string[] = [];
let vowelIndex = 0;
// Reconstruct the string with reversed vowels
for (let char of s) {
if (vowels.has(char)) {
result.push(vowelList[vowelIndex]);
vowelIndex++;
} else {
result.push(char);
}
}
return result.join('');
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the length of the string. Extracting vowels, reversing them, and reconstructing the string each take O(n) time.
- **Space Complexity:** O(n), for storing the vowels and the result array.
### Limitations:
The brute force solution works well but uses additional space for storing vowels and the result array.
## Optimized Solution:
### Code:
```typescript
function reverseVowelsOptimized(s: string): string {
const vowels = new Set(['a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U']);
let sArray = s.split('');
let left = 0;
let right = sArray.length - 1;
while (left < right) {
while (left < right && !vowels.has(sArray[left])) {
left++;
}
while (left < right && !vowels.has(sArray[right])) {
right--;
}
if (left < right) {
[sArray[left], sArray[right]] = [sArray[right], sArray[left]];
left++;
right--;
}
}
return sArray.join('');
}
```
### Time Complexity Analysis:
- **Time Complexity:** O(n), where n is the length of the string. Each character is checked at most twice.
- **Space Complexity:** O(n), for the array representation of the string. The space complexity can be considered O(1) if we don't count the space used for the input and output strings.
### Improvements Over Basic Solution:
- The optimized solution uses a two-pointer approach to reverse the vowels in place, reducing the need for additional space.
## Edge Cases and Testing:
### Edge Cases:
1. The string contains no vowels.
2. The string contains only vowels.
3. The string has upper and lower case vowels.
4. The string length is at the minimum or maximum limit.
### Test Cases:
```typescript
console.log(reverseVowelsBruteForce("hello")); // "holle"
console.log(reverseVowelsBruteForce("leetcode")); // "leotcede"
console.log(reverseVowelsBruteForce("aA")); // "Aa"
console.log(reverseVowelsBruteForce("")); // ""
console.log(reverseVowelsBruteForce("bcdfg")); // "bcdfg"
console.log(reverseVowelsOptimized("hello")); // "holle"
console.log(reverseVowelsOptimized("leetcode")); // "leotcede"
console.log(reverseVowelsOptimized("aA")); // "Aa"
console.log(reverseVowelsOptimized("")); // ""
console.log(reverseVowelsOptimized("bcdfg")); // "bcdfg"
```
## General Problem-Solving Strategies:
1. **Understand the Problem:** Carefully read the problem statement and constraints to understand what is required.
2. **Identify Key Operations:** Determine the key operations needed, such as identifying and reversing vowels.
3. **Optimize for Readability:** Use clear and concise logic to ensure the code is easy to follow.
4. **Test Thoroughly:** Test the solution with various cases, including edge cases, to ensure correctness.
## Identifying Similar Problems:
1. **String Manipulation:**
- Problems where you need to modify strings based on specific conditions.
- Example: Reversing the order of words in a sentence.
2. **Two-Pointer Technique:**
- Problems where using two pointers can help optimize the solution.
- Example: Removing duplicates from a sorted array.
3. **Character-Based Operations:**
- Problems where operations are performed based on specific characters or character sets.
- Example: Checking if a string is a palindrome by ignoring non-alphanumeric characters.
## Conclusion:
- The problem of reversing vowels in a string can be efficiently solved using both a brute force approach and an optimized two-pointer approach.
- Understanding the problem and breaking it down into manageable parts is crucial.
- Using clear logic and optimizing for readability ensures the solution is easy to follow.
- Testing with various edge cases ensures robustness.
- Recognizing patterns in problems can help apply similar solutions to other challenges.
By practicing such problems and strategies, you can improve your problem-solving skills and be better prepared for various coding challenges. | __zamora__ |
1,918,997 | Slack chatGPT AI bot | Features OpenAI chatGPT bot for Slack app mostly used in corporate This bot is another... | 0 | 2024-07-10T20:41:40 | https://dev.to/nitinkumar30/slack-chatgpt-ai-bot-2aoc | aitools, slackchatbot, chatgpt, aibot | ## Features
> 1. OpenAI chatGPT bot for [Slack app](https://app.slack.com/) mostly used in corporate
> 2. This bot is another app to be used as a chatGPT integrated there
> 3. .env file for all generated tokens
---
## Working
---
## Tokens used
1. SLACK_BOT_TOKEN
2. SLACK_APP_TOKEN
3. OPENAI_API_KEY
---
## Applications used
1. [Slack web app](https://app.slack.com/)
2. [Chat GPT](https://platform.openai.com/)
---
## How to's
### 1. generate OpenAI token
Step 1: Navigate to [openAI web app](https://platform.openai.com/settings/profile?tab=api-keys)
Step 2: Login and click on **Create new secret key** button
Step 3: Provide a name to the token to be generated & click on **Create secret key** button
Step 4: Paste the token hence generated
### 2. Create & configure app in slack
Step 1: Navigate to [Slack API web app](https://api.slack.com/apps?new_app=1)
Step 2: Click on **Create New App** button
Step 3: Click **from scratch** >> provide App name >> Select the workspace from your profile >> Click on **Create App**
Step 4: Go to **OAuth & Permissions** from left menu bar >> Add Bot token scopes (chat:write & chat:write.public)
Step 5: Click on **Install to workspace** >> Click **Allow** button
Step 6: Copy the **Bot User OAuth Token** hence generated
Step 7: Go to **Basic Information** >> App-Level Tokens >> Generate Token and Scopes >> Provide any token name >> Add Scope (connections:write) >> Click on **Generate**
Step 8: Copy the token hence generated
Step 9: Go to **Socket Mode** & enable socket mode
Step 10: Go to **Interactivity & Shortcuts** & enable it(if not already)
Step 11: Go to **Event Subscriptions** >> enable **Enable Events** >> Click on **
Subscribe to bot events** >> Add Bot user events (message.im & app_mention) >> Click on **Save Changes**
Step 12: Now, reinstall the app (As we've done in step 5)
Step 13: Go to **App Home** >> Enable **Allow users to send Slash commands and messages from the messages tab**
---
## How to run
1. First run the python script
2. Then, navigate to the slack web app and type the prompt
3. You'll get response in slack web app
---
## Bibliography
[Linkedin post](https://www.linkedin.com/posts/nitin30kumar_connections-streamline-communication-activity-7216512913161781248-er-Z?utm_source=share&utm_medium=member_desktop)
[GitHub Repo](https://github.com/nitinkumar30/slack_chatBot/)
[Reference YouTube Link](https://youtu.be/Luujq0t0J7A?si=4Eqm3vjPnXSmmftn)
---
## Author
[Nitin Kumar](https://linkedin.com/in/nitin30kumar/)
---
Keep building bots !! | nitinkumar30 |
1,918,948 | Understanding DeFiLlama - The Ultimate Guide to Decentralized Finance Analytics | Ever wondered about the potential paradigm shift in decentralised finances? Or ever heard the... | 0 | 2024-07-10T20:17:47 | https://dev.to/defillama32/understanding-defillama-the-ultimate-guide-to-decentralized-finance-analytics-afo | cryptocurrency, ethereum, blockchain | Ever wondered about the potential paradigm shift in decentralised finances? Or ever heard the whispers of DeFiLlama being a game-changer? Let's shed some light on it. This section is dedicated to demystifying this intriguing concept and revealing the underlying advantages.
Imagine a landscape where the financial arena is no more confined to traditional barriers. That's the marvel of DeFiLlama. Defying the norms, this unique platform paves the way to decentralised finance, epitomising financial freedom and accessibility.
So-called DeFiLlama, it envisions a world where finance is in the hands of the masses, not just a privileged few. Celebrating the essence of transparency and security, it offers a wide range of financial services, weaving a trustless ecosystem where users can navigate with ease and confidence.
Key Features of DeFiLlama
Explore the unique characteristics shared by this revolutionary product. Understanding these core attributes can help you gauge why this offering is disrupting the market and creating a ripple of excitement among its user base.
Decentralized Finance Tracking: This feature enables users to keep a track on their investments and manage their assets with a better outlook.
User-friendly Interface: The intuitive and accessible interface ensures that users of all technical levels can navigate and utilize the platform easily.
Versatile Asset Management: Portfolio diversification gets simpler with the platform's ability to manage a wide array of financial assets.
Robust Security Measures: Safety of user's data and investment is a priority, hence this tool is equipped with advanced security protocols.
Real-time Monitoring: The service supplies real-time data, helping users to make informed, timely decisions about their assets.
A detailed understanding of these key features can place you in the advantageous position to optimize use of this innovative tool, thus maximizing your return on investments and further solidifying your position in the world of decentralized finance.
Why Use DeFiLlama?
DeFiLlama is your go-to platform for all decentralized financemarket data. The service provides you with a comprehensive and detailed overview of the DeFi world, thus helping you make informed decisions. But why should you opt for this specific service? Let's dive into the advantages of using DeFiLlama.
Versatility and comprehensiveness: DeFI Llama is a multi-functional and highly versatile tool, catering to a wide array of needs for its users. It goes beyond simple stats and allows its users to effectively monitor and analyse the DeFi space. The platform enables you to oversee all DeFi protocols across various blockchains.
Ease of access and use: An intuitive and user-friendly interface makes the platform accessible even to beginners in the DeFi space. At the same time, it provides vast data resources and capabilities that satisfy experienced users as well.
Detailed and accurate data: When it comes to market data, accuracy and detail are of utmost importance. DeFiLlama excels at providing the latest, accurate, and comprehensive market data, thus enabling users to make informed decisions.
Community-driven: DeFiLlama stands out by being a platform that’s community driven. This means it’s maintained, updated, and improved upon by a community of dedicated and knowledgeable members which ensures that the platform is constantly evolving to meet the users’ needs.
In summary, DefiLlama equips you with all the resources you need to understand and navigate the complex, highly volatile, but equally promising world of decentralized finance. Whether you are new to the industry or a seasoned finance techno-geek, DefiLlama is a must-have tool for staying up-to-date in the dynamic DeFi landscape.
How to Utilize DeFiLlama
In this section, our focus will be on the steps and procedures necessary to effectively use DeFiLlama. The platform, widely recognized in the field of decentralized finance, offers a plethora of services and tools. Our primary aim will be to guide the readers through a simplified and methodical approach to this innovative platform, keeping in mind the importance of the user interface and features that it provides.
Before you can access the information available in DeFiLlama, you need to have a cryptocurrency wallet. MetaMask is a commonly used wallet in the DeFi space and can be installed in multiple browsers including Chrome and Firefox. Once you have MetaMask installed, you will need to connect it to DeFiLlama.
Now let's understand the step-by-step guide:
Step Description
1 Navigate to the DeFiLlama website.
2 Select the option 'Connect Wallet' on the homepage.
3 Choose MetaMask from the list of available options.
4 Follow the authentication process to sync your wallet with DeFiLlama.
5 Once synced, explore the various informations and tools available, such as 'TVL Charts', 'Project lists' etc.
After following the above steps, users should be able to use DeFiLlama accurately. Happy exploring and remember, the world of decentralized finance is vast and holds immense potential!
Getting Started with DeFiLlama
If you're keen to dive deeper into the decentralized finance sector, the gateway to understanding its breadth is through an introduction to DefiLlama. This section will gently guide you into the specifics, commencing with a tour around its basic components, followed by elaborate steps to help you get familiarized and transition smoothly.
Considering the volume and complexities of data, getting started with DefiLlama is not an indication of a steep insurmountable climb but rather an insightful journey into the decentralized world of crypto-assets. Let's take our first steps toward understanding and utilizing this platform.
Before we delve deeper, it's pertinent to have a DHabitable overview of what DefiLlama represents. It primarily serves as a dashboard that analyzes DeFi projects, aggregating pertinent information into a user-friendly format. Its ubiquitous presence serves numerous users globally, offering a profound insight into the DeFi landscape.
Steps Description
Create an account The first step is to create a free account on DefiLlama. The process is simple and user friendly. Remember to keep your credentials secure.
Explore the dashboard Once you have logged into the account, take time to tour the dashboard. It's segmented into various sections each offering different insights. Understand each section and its purpose.
Experiment Feel free to click around and observe how DefiLlama helps analyze different DeFi projects. The more you interact with the tool, the more comfortable you will become.
Getting started with DefiLlama is all about exploring, learning, and embracing the world of DeFi. Dive in and unlock the potentials that decentralized finance has to offer!
Navigating the DeFiLlama Interface
Exploring the digital landscape can pose a challenge even for the most tech-savvy individuals. However, understanding how to maneuver through the DeFiLlama platform can amplify user experience tenfold. This section aims to break down the complexity of navigating the DeFiLlama interface.
Familiarity with the dashboard is the first step towards seamless navigation. Here, users can see an overview of the global DeFi market, along with the latest updates on major players. It is important to note that the dashboard can be customized to only showcase the user's preferred data, ensuring an efficient browsing experience tailored to each user's needs.
One unique aspect of the DeFiLlama interface is its 'chains' feature. This section, housed within the 'protocols' submenu, presents users with an organized list of DeFi projects sorted by blockchain. A deeper dive into this feature facilitates learning about different blockchains and the stand-out DeFi projects within each one.
The 'protocols' section of the DeFiLlama interface involves comprehensive information about each protocol. A user-friendly directory aids in an efficient search for details about the protocols, such as total value locked, various metrics, and detailed charts.
To experience the maximum benefit from the platform, users are recommended to fully explore the features of the DeFiLlama interface. Every tab and button has been meticulously designed to provide up to date information, and to enhance the user experience.
Interpreting DeFiLlama Data
In this section, we will embark on a journey to understand the analysis of data represented by DeFiLlama. Crucial for anyone delving into DeFi, we will discuss how to process and comprehend the underlying statistics and information. Seeking to illuminate the complex world of decentralized finance, our aim is to make sense of the insights offered by the platform, without getting overwhelmed by the vast array of numbers and facts.
Unearthing Hidden Treasure
DeFiLlama, a prominent platform in the decentralized financial sector, provides in-depth data and analysis on various crypto assets. Making sense of its data can feel like unveiling a hidden treasure trove. With the right understanding, we can transform these dense facts into actionable insights.
Comprehending the Figures
The abundance of numbers displayed may seem daunting, but fear not! Taming the tempest of statistics is a handcrafter's game. Using the right interpretive methods and approaches, we can decode these data points, enabling us to identify patterns, trends and potential investment opportunities.
Navigating the DeFi World
Interpreting DeFiLlama information is akin to navigating through a complex maze, wherein the correct understanding of the data is the roadmap. By mastering the art of interpretation, you will be well equipped to navigate the labyrinth of decentralized finance.
Overall, decoding DeFiLlama data is an indispensable skill in the quest to conquer the DeFi realm. By understanding how to contextualize and interpret the multitude of facts, figures, and trends, we transform information into wisdom, striking gold in DeFi's vast world.
Maximize the Benefits of DeFiLlama
Exploring the landscape of decentralised finance (DeFi) can seem like a daunting task, particularly with a vast number of platforms to choose from. Yet, one standout platform that provides comprehensive data and analytics is DeFiLlama. This section aims to elucidate how you can leverage the utmost advantages of this powerful tool.
Firstly, optimization of decentralized assets data retrieval is pivotal. DeFiLlama is deft at consolidating such data. The platform gathers information from an array of blockchains, offering a holistic view of the DeFi realm.
Secondly, cross-chain comparability is a unique advantage proffered by DeFiLlama. This means you have the capacity to directly contrast performance metrics across different chains. Such cross-comparability affords users the ability to make more informed and nuanced decisions for their assets.
Lastly, the alerts feature of DeFiLlama should not be overlooked. Regular updates about any drastic changes or trends in your specified spheres will aid in potentiating investment results. Truly, staying informed is as easy as pie with this tool at your disposal.
The immense world of DeFi might initially seem convoluted, but with a platform like DeFiLlama, you are never alone in your journey. Harness its capabilities to maximize your benefits and get the most out of your DeFi experience.
https://deffillama.digital/ | defillama32 |
1,918,992 | The Developer's Journey of Coffee Meets Bagel: Crafting a Unique Dating Experience | Coffee Meets Bagel stands out in the crowded dating app market with its unique approach and... | 0 | 2024-07-10T20:22:05 | https://dev.to/joycesemma/the-developers-journey-of-coffee-meets-bagel-crafting-a-unique-dating-experience-30ki | Coffee Meets Bagel stands out in the crowded dating app market with its unique approach and user-centric design. Founded in 2012 by sisters Arum, Dawoon, and Soo Kang, the app was developed with a focus on quality over quantity, aiming to provide meaningful connections rather than endless swiping. Here’s a deep dive into the development journey of Coffee Meets Bagel, the techniques used, and how it became a successful platform.
## The Development Process of Coffee Meets Bagel
1. **User-Centric Design Philosophy** [Coffee Meets Bagel](https://www.reddit.com/r/coffeemeetsbagel/) was designed to address common frustrations users had with existing dating apps. The developers prioritized creating an intuitive and pleasant user experience. They focused on a minimalist design to reduce user fatigue and ensure that the app was easy to navigate.
**2. Daily Match System** One of the unique features of this app is its daily match system. Every day at noon, users receive a limited number of potential matches, called "Bagels." This approach was designed to encourage users to take their time evaluating each match, rather than mindlessly swiping through countless profiles. This system required the backend to handle synchronized notifications and ensure the timely delivery of matches, which was a significant technical challenge.
**3. Integration with Social Media** Coffee Meets Bagel leverages Facebook's social graph to suggest matches based on mutual friends. This not only adds a layer of trust but also integrates smoothly with users’ existing social networks. The developers implemented OAuth for secure Facebook login and Graph API to fetch friends’ data, ensuring that privacy standards were met.
**4. Emphasis on Security and Privacy** The developers were committed to creating a safe space for users. They implemented robust security measures, including data encryption and secure authentication protocols. Additionally, the app offers features like photo verification to prevent fake profiles and ensure authenticity.
## Technical Innovations of Coffee Meets Bagel
**1. Scalable Architecture** As the user base grew, scalability became a crucial focus. The development team utilized cloud services to handle increased traffic and ensure smooth performance. They employed load balancers and auto-scaling groups to manage server load efficiently, providing a seamless experience even during peak times.
**2. Machine Learning for Matchmaking** To enhance the matchmaking process, Coffee Meets Bagel incorporated machine learning algorithms to analyze user preferences and behaviors. This allowed the app to provide more relevant matches over time. The recommendation engine was fine-tuned using user feedback and engagement metrics to continually improve match quality.
**3. Cross-Platform Development** Coffee Meets Bagel is available on both iOS and Android platforms. The development team used a combination of native development and cross-platform tools to ensure consistent performance and user experience across devices. This approach allowed them to reach a broader audience without compromising on app quality.
## How They Planned UI/UX Design of Coffee Meets Bagel App
**1. Minimalist Aesthetic** The user interface of Coffee Meets Bagel is designed to be clean and minimalist, reducing distractions and focusing users' attention on the core functionality. The design team adhered to principles of simplicity and clarity, using whitespace effectively and maintaining a consistent color palette.
**2. User Feedback Integration** Continuous improvement based on user feedback is a cornerstone of Coffee Meets Bagel’s design philosophy. The developers regularly conduct user testing and surveys to gather insights and iterate on the app’s features and design. This agile approach allows them to swiftly address user concerns and enhance the overall experience.
## Success Behind Coffee Meets Bagel
As of 2024, Coffee Meets Bagel has grown significantly, boasting millions of users worldwide. The company has maintained its reputation for fostering serious relationships rather than casual flings, distinguishing itself from many competitors in the dating app space. The company's focus on user experience and meaningful connections has translated into substantial financial success, with the company's valuation reportedly reaching around $150 million as reported by geeksaroundglobe.
## Conclusion
The journey of Coffee Meets Bagel from a startup to a successful dating app is a testament to the power of user-centric design and innovative technology. By focusing on quality matches, integrating robust security measures, and leveraging machine learning, the developers created an app that resonates with users seeking meaningful relationships. As the company continues to grow, its commitment to enhancing the user experience and staying true to its core values will likely keep it at the forefront of the online dating industry.
| joycesemma | |
1,918,993 | United Constructors Inc. | United Constructors, Inc. is a family-inspired company. The family business of construction started... | 0 | 2024-07-10T20:26:18 | https://dev.to/unitedconstructors/united-constructors-inc-5f8d |
United Constructors, Inc. is a family-inspired company. The family business of construction started generations ago with grandpa building his own house. Cash’s father, Jerry, started serving the Bay Area doing kitchen and bathroom remodeling in 1989 and has passed the torch to his sons and they are following in the family footstep!We are proud to say that we have had three generations of the Payne family in this industry and have since the beginning. United enjoys the privilege of many talented people with appropriate licenses, providing us the ability to accomplish multiple tasks within one company. We are a personable and diverse team. Being family owned we are empathetic to the value of quality customer service; therefore, this is our number one aspect and concern, and it is the foundation on which we have built our company. United has grown into a large force in the construction industry here in the Bay Area. We follow the motto of “Do the right thing”. United Constructors Inc. has been constructing for over 40yrs, and has the knowledge and experience in adu remodels, kitchen and bathroom remodeling, and sveral emergency services such as plumbing, electrical and roofing. The job is not to small or too big for the team at United Constructors Inc. Cash is motivated and looks forward to keeping the family tradition going for many years to come. Providing excellent service and dedication to our many valued happy customers. We value the people that work with us at United Constructors Inc, and we welcome all of our clients into our big family of happy clients.
United Constructors Inc.
Address: 1251 Stone Valley Rd, Alamo, California 94507, US
Phone: 925-487-2623
Website: [https://www.unitedconstructorsinc.com/](https://www.unitedconstructorsinc.com/)
Contact email: theunitedconstructorsinc@gmail.com
Visit Us:
[United Constructors Inc. Facebook](https://www.facebook.com/people/United-Constructors-Inc/61557943663194/)
[United Constructors Inc. YouTube](https://www.youtube.com/@unitedconstructorsinc)
[United Constructors Inc. LinkedIn](https://www.linkedin.com/in/cash-payne-389a07aa/)
Our Services:
Kitchen Remodeling
Bathroom Remodeling
ADU Construction
Landscaping
Plumbing
Emergency plumbing and electric | unitedconstructors | |
1,918,995 | Implementando Transactional Outbox com Go, DynamoDB, MongoDB, Kafka e RabbitMq | Introdução O padrão Transactional Outbox é uma solução de arquitetura que ajuda a garantir a... | 0 | 2024-07-10T22:26:06 | https://dev.to/ederfmatos/implementando-transactional-outbox-com-go-dynamodb-e-mongodb-1kn3 | microservices, dynamodb, mongodb, transactionaloutbox |
**Introdução**
O padrão Transactional Outbox é uma solução de arquitetura que ajuda a garantir a consistência de dados entre um banco de dados e um sistema de mensageria. Ele é especialmente útil em sistemas distribuídos onde é necessário garantir que uma mensagem seja enviada somente se a transação do banco de dados for bem-sucedida. Este artigo tem como objetivo introduzir esse padrão e mostrar como implementar utilizando a linguagem Go, Apacke Kafka, DynamoDB ou MongoDB, sem grandes esforços.
**Teoria por Trás do Padrão Transactional Outbox**
O padrão Transactional Outbox resolve o problema de consistência de dados em sistemas distribuídos. Quando uma transação envolve tanto uma atualização no banco de dados quanto o envio de uma mensagem para um sistema de mensageria, o padrão Transactional Outbox garante que essas duas operações sejam executadas de forma atômica. Ou seja, ambas são concluídas com sucesso ou nenhuma delas é concluída. Isso é alcançado ao primeiro salvar o evento em uma tabela no banco de dados e, posteriormente, ler e processar esses eventos para enviá-los ao sistema de mensageria.
**Apache Kafka**
Apache Kafka é uma plataforma de streaming de eventos distribuída que permite publicar, armazenar e consumir fluxos de registros em tempo real. Ele é frequentemente usado para construir pipelines de dados e sistemas de mensageria resilientes. Kafka é conhecido por sua alta taxa de transferência, baixa latência e capacidade de armazenamento durável.
**Amazon DynamoDB**
Amazon DynamoDB é um serviço de banco de dados NoSQL totalmente gerenciado que oferece desempenho previsível e alta escalabilidade. DynamoDB Streams é um recurso que captura todas as alterações feitas nas tabelas do DynamoDB, permitindo que aplicações consumam e processem essas alterações em tempo real. Isso é especialmente útil para implementar o padrão Transactional Outbox, pois permite que as mudanças sejam monitoradas e processadas de forma assíncrona.
**MongoDB**
MongoDB é um banco de dados NoSQL orientado a documentos que utiliza documentos semelhantes a JSON com esquemas. Ele é altamente escalável e flexível, permitindo que desenvolvedores armazenem dados em estruturas complexas de maneira eficiente. MongoDB é amplamente utilizado para aplicações que exigem grande flexibilidade e desempenho em consultas, como aplicações web e móveis.
**MongoDB Change Streams**
O MongoDB Change Streams permite que as aplicações recebam notificações em tempo real sobre mudanças em documentos e coleções no banco de dados. Isso é particularmente útil para construir sistemas reativos e pipelines de dados que precisam processar eventos à medida que eles ocorrem no banco de dados.
**Streams**
Streams são fluxos de dados contínuos que podem ser processados em tempo real. Em sistemas de mensageria e banco de dados, streams permitem a captura e processamento de eventos, como alterações em registros de banco de dados ou mensagens publicadas em um tópico.
## Implementação Prática
Vamos implementar uma aplicação simples em Go que utiliza o padrão Transactional Outbox para garantir a consistência de dados. Nessa aplicação, teremos um caso de uso onde iremos processar um pagamento. Para realizar essa ação, vamos receber os dados de pagamento, como número de cartão de crédito, data de expiração, CVV, nome do dono do cartão e um ID da ordem de compra. Nesta aplicação, o que vamos fazer é chamar um gateway de pagamento, para realizar o processamento do pagamento.
Caso o gateway retorne com sucesso, vamos emitir um evento informando que o pagamento foi processado com sucesso. Caso o gateway retorne com erro, vamos emitir outro evento dizendo que ocorreu uma falha no pagamento, informando no evento o motivo da falha, literalmente a mensagem de erro. Para isso, vamos iniciar com o seguinte código.
```go
type (
ProcessPaymentUseCase struct {
eventEmitter event.Emitter
paymentGateway payment.Gateway
}
Input struct {
PurchaseId string
Amount float64
CardNumber string
CardHolderName string
CardExpirationDate string
CardCVV string
}
)
func New(eventEmitter event.Emitter, paymentGateway payment.Gateway) *ProcessPaymentUseCase {
return &ProcessPaymentUseCase{eventEmitter: eventEmitter, paymentGateway: paymentGateway}
}
func (uc *ProcessPaymentUseCase) Execute(input Input) error {
paymentInput := payment.Input{
CardNumber: input.CardNumber,
CardHolderName: input.CardHolderName,
CardExpirationDate: input.CardExpirationDate,
CardCVV: input.CardCVV,
Amount: input.Amount,
}
paymentOutput, err := uc.paymentGateway.Pay(paymentInput)
if err != nil {
return uc.eventEmitter.Emit(events.NewPaymentFailedEvent(input.PurchaseId, err.Error()))
}
return uc.eventEmitter.Emit(events.NewPaymentProcessedEvent(input.PurchaseId, paymentOutput.TransactionId))
}
```
Temos o nosso caso de uso, onde ele recebe duas dependências: a primeira é o EventEmitter e a segunda é o PaymentGateway. O EventEmitter é uma interface com a seguinte forma:
```go
type Emitter interface {
Emit(event *events.Event) error
}
type Event struct {
ID string `json:"id,omitempty"`
Name string `json:"name,omitempty"`
Payload map[string]string `json:"payload,omitempty"`
}
```
Já o PaymentGateway tem a seguinte forma:
```go
type (
Input struct {
CardNumber string
CardHolderName string
CardExpirationDate string
CardCVV string
Amount float64
}
Output struct {
TransactionId string
}
Gateway interface {
Pay(payment Input) (*Output, error)
}
)
```
Para criar uma implementação fictícia, vamos criar duas implementações do PaymentGateway. Uma que aceita pagamentos acima de R$ 20,00 e outra que aceita pagamentos apenas abaixo de R$ 20,00, como o código a seguir:
```go
type MasterCardPaymentGateway struct{}
func (m *MasterCardPaymentGateway) Pay(input payment.Input) (*payment.Output, error) {
if input.Amount <= 20 {
return nil, errors.New("amount too high")
}
return &payment.Output{
TransactionId: uuid.NewString(),
}, nil
}
type VisaPaymentGateway struct{}
func (v *VisaPaymentGateway) Pay(input payment.Input) (*payment.Output, error) {
if input.Amount > 20 {
return nil, errors.New("amount too high")
}
return &payment.Output{
TransactionId: uuid.NewString(),
}, nil
}
```
Então, como o intuito não é realmente enviar essa mensagem para o sistema de mensageria aqui, mas apenas salvar essa mensagem no banco de dados, temos uma implementação que faz exatamente isso. Simplesmente salvamos esse evento no banco. Utilizando o padrão repositório, temos o OutboxRepository, com duas implementações para este nosso artigo. A primeira utilizando MongoDB, a segunda utilizando DynamoDB. Abaixo, então, vemos o código tanto da implementação do EventEmitter como do OutboxRepository.
```go
type OutboxEventEmitter struct {
outboxRepository repository.OutboxRepository
}
func NewOutboxEventEmitter(outboxRepository repository.OutboxRepository) *OutboxEventEmitter {
return &OutboxEventEmitter{outboxRepository: outboxRepository}
}
func (d *OutboxEventEmitter) Emit(event *events.Event) error {
payload, err := json.Marshal(event)
if err != nil {
return err
}
outbox := repository.NewOutbox(event.ID, event.Name, string(payload))
return d.outboxRepository.Save(outbox)
}
```
**Outbox**
```go
type (
Outbox struct {
Id string `json:"id" bson:"_id"`
Name string `json:"name" bson:"name"`
Payload string `json:"payload" bson:"payload"`
Status string `json:"status" bson:"status"`
CreatedAt time.Time `json:"created_at" bson:"created_at"`
ProcessedAt *time.Time `json:"processed_at" bson:"processed_at"`
}
OutboxRepository interface {
Save(outbox *Outbox) error
}
)
func NewOutbox(id, name, payload string) *Outbox {
return &Outbox{
Id: id,
Name: name,
Payload: payload,
Status: "PENDING",
CreatedAt: time.Now(),
}
}
```
**Implementação do outbox repository com MongoDB**
```go
type mongoOutboxRepository struct {
collection *mongo.Collection
}
func NewMongoOutboxRepository(collection *mongo.Collection) OutboxRepository {
return &mongoOutboxRepository{collection: collection}
}
func (r *mongoOutboxRepository) Save(outbox *Outbox) error {
_, err := r.collection.InsertOne(context.TODO(), outbox)
return err
}
```
**Implementação do outbox repository com DynamoDB**
```go
type dynamoDBOutboxRepository struct {
tableName string
dynamoClient *dynamodb.DynamoDB
}
func NewDynamoDBOutboxRepository(tableName string, dynamoClient *dynamodb.DynamoDB) OutboxRepository {
return &dynamoDBOutboxRepository{tableName: tableName, dynamoClient: dynamoClient}
}
func (r *dynamoDBOutboxRepository) Save(outbox *Outbox) error {
item, err := dynamodbattribute.MarshalMap(outbox)
if err != nil {
return err
}
input := &dynamodb.PutItemInput{
TableName: aws.String(r.tableName),
Item: item,
}
_, err = r.dynamoClient.PutItem(input)
return err
}
```
E com isso, temos o nosso serviço pronto. Dentro das suas responsabilidades, ele fez tudo o que estava proposto. Para verificarmos, temos o seguinte código de exemplo:
```go
func main() {
outboxRepository := mongoOutboxRepository()
outboxEventEmitter := events.NewOutboxEventEmitter(outboxRepository)
paymentGateway := &gateway.VisaPaymentGateway{}
processPayment := process_payment.New(outboxEventEmitter, paymentGateway)
input := process_payment.Input{
PurchaseId: uuid.NewString(),
Amount: 10,
CardNumber: "1234123412341234",
CardHolderName: "Any name",
CardExpirationDate: "10/2024",
CardCVV: "123",
}
err := processPayment.Execute(input)
if err != nil {
slog.Error("Payment process is failed", err)
return
}
slog.Info("Payment process is done")
}
```
Agora então, caso executemos o programa utilizando o MongoDB, podemos ver o registro inserido na coleção do MongoDB. O mesmo vale para o DynamoDB.
## Envio das mensagens para o serviço de mensageria
Agora, então, temos que ter alguma forma de ler esses dados da tabela e enviá-los realmente para o serviço de mensageria. Neste caso, vamos utilizar o Kafka e o RabbitMQ. Para isso, vamos criar uma outra aplicação que também terá o Outbox repositório. Terá um emissor de evento para o RabbitMQ e um para o Kafka, e terá que, de alguma forma, obter os dados tanto do MongoDB quanto do DynamoDB, dependendo da estratégia.
Para isso, vamos definir uma interface chamada OutboxStream. Essa interface terá o método FetchEvents, que nos devolverá um canal do Go, onde, nesse canal, teremos o ID do registro que foi inserido ou do registro que deve ser processado neste momento. E, então, teremos uma implementação dessa interface para o MongoDBStreams e uma para o DynamoDBStreams.
```go
type OutboxStream interface {
FetchEvents() (chan string, error)
}
```
Uma vez que temos este canal de eventos, podemos percorrer este canal e, para cada item que estiver no canal, podemos obter o registro que está no valor de dados a partir do repositório. Então, começamos o processamento, verificando se o registro já foi processado. Se já foi processado, simplesmente o ignoramos. Agora, se ele não foi processado ou foi processado com erro, seguimos com o processamento.
O processamento consiste basicamente em obter os dados do evento que estão no próprio registro, no campo payload, e, a partir desses dados, enviar ao sistema de mensageria normalmente. Caso o sistema de mensageria retorne algum erro, marcamos esse registro como falho, com erro, e salvamos novamente no banco para ser processado depois. Caso o envio da mensagem para o sistema de mensageria tenha sido bem-sucedido, marcamos esse registro como processado e salvamos no banco de dados.
```go
func main() {
eventEmitter := NewRabbitMqEventEmitter(RabbitMqServer)
outboxRepository, outboxStream := mongoOutbox()
outboxHandler := NewOutboxHandler(outboxRepository, eventEmitter)
events, err := outboxStream.FetchEvents()
if err != nil {
panic(err)
}
for id := range events {
outbox, err := outboxRepository.Get(id)
if err != nil {
continue
}
outboxHandler.Handle(outbox)
}
}
```
**Struct responsável pelo processamento do registro**
```go
type OutboxHandler struct {
outboxRepository OutboxRepository
eventEmitter EventEmitter
}
func NewOutboxHandler(outboxRepository OutboxRepository, eventEmitter EventEmitter) *OutboxHandler {
return &OutboxHandler{outboxRepository: outboxRepository, eventEmitter: eventEmitter}
}
func (handler OutboxHandler) Handle(outbox *Outbox) {
if outbox == nil || outbox.Status == "PROCESSED" {
return
}
var messageEvent Event
err := json.Unmarshal([]byte(outbox.Payload), &messageEvent)
if err != nil {
_ = handler.outboxRepository.Update(outbox)
slog.Error("Error unmarshalling message event: " + err.Error())
return
}
err = handler.eventEmitter.Emit(&messageEvent)
if err != nil {
outbox.MarkAsError()
_ = handler.outboxRepository.Update(outbox)
return
}
outbox.MarkAsProcessed()
_ = handler.outboxRepository.Update(outbox)
}
```
Portanto, agora, a única coisa que nos resta é criar a implementação para o Outbox Stream, tanto para o DynamoDB Stream quanto para o MongoDB Stream. Para isso, vamos começar, primeiramente, com o DynamoDB.
## DynamoDB Streams
Aqui, basicamente, temos que entender, então, como o SDK da AWS para Go nos permite consumir os dados do stream. Abaixo, temos o código para consumir esses dados do stream
```go
type DynamoStream struct {
dynamoStreamClient *dynamodbstreams.DynamoDBStreams
awsSession *session.Session
tableName string
dynamoDB *dynamodb.DynamoDB
}
func NewDynamoStream(awsSession *session.Session, tableName string, dynamoDB *dynamodb.DynamoDB) OutboxStream {
return &DynamoStream{
dynamoStreamClient: dynamodbstreams.New(awsSession),
dynamoDB: dynamoDB,
awsSession: awsSession,
tableName: tableName,
}
}
func (stream *DynamoStream) getStreamArn() (string, error) {
result, err := stream.dynamoDB.DescribeTable(&dynamodb.DescribeTableInput{TableName: aws.String(stream.tableName)})
if err != nil {
return "", err
}
if result.Table.StreamSpecification != nil && *result.Table.StreamSpecification.StreamEnabled {
return *result.Table.LatestStreamArn, nil
}
return "", fmt.Errorf("streams not enabled for table %s", stream.tableName)
}
func (stream *DynamoStream) FetchEvents() (chan string, error) {
streamArn, err := stream.getStreamArn()
if err != nil {
return nil, err
}
events := make(chan string)
describeStreamInput := &dynamodbstreams.DescribeStreamInput{StreamArn: aws.String(streamArn)}
describeStreamOutput, err := stream.dynamoStreamClient.DescribeStream(describeStreamInput)
if err != nil {
return nil, err
}
for _, shard := range describeStreamOutput.StreamDescription.Shards {
go stream.processShard(*shard.ShardId, events, streamArn)
}
return events, nil
}
func (stream *DynamoStream) processShard(shardID string, events chan<- string, streamArn string) {
shardIteratorInput := &dynamodbstreams.GetShardIteratorInput{
StreamArn: aws.String(streamArn),
ShardId: aws.String(shardID),
ShardIteratorType: aws.String(dynamodbstreams.ShardIteratorTypeTrimHorizon),
}
shardIteratorOutput, err := stream.dynamoStreamClient.GetShardIterator(shardIteratorInput)
if err != nil {
return
}
ShardIterator := shardIteratorOutput.ShardIterator
backoff := time.Second
for {
getRecordsInput := &dynamodbstreams.GetRecordsInput{ShardIterator: ShardIterator}
records, err := stream.dynamoStreamClient.GetRecords(getRecordsInput)
if err != nil {
continue
}
for _, record := range records.Records {
id := record.Dynamodb.NewImage["id"].S
status := record.Dynamodb.NewImage["status"].S
if *record.EventName == "INSERT" {
backoff = time.Second
events <- *id
} else if *record.EventName == "MODIFY" && *status == "ERROR" {
backoff = time.Second
go func(id string) {
time.Sleep(5 * time.Second)
events <- id
}(*id)
}
}
ShardIterator = records.NextShardIterator
time.Sleep(backoff)
if backoff < 30*time.Second {
backoff *= 2
} else {
backoff = 30 * time.Second
}
}
}
```
Analisando o código, primeiramente recebemos o nome da tabela do DynamoDB e, a partir disso, obtemos o ARN do stream. Para isso, temos que habilitar o uso do stream dentro do DynamoDB. A partir daí, temos basicamente um loop infinito que fica obtendo novos registros que podem existir no DynamoDB Stream. Podemos percorrer esses registros obtendo informações sobre o registro em si.
No nosso caso, temos o ID do registro e o status. Além disso, podemos obter a informação sobre o que aconteceu com o registro, tendo as opções de Insert, Modify e Remove. No nosso caso, sempre que um novo registro for inserido, devemos pegar o ID desse registro e adicioná-lo ao nosso canal. E caso o registro tenha sido modificado para o status de Error, também devemos pegar o ID desse registro e inseri-lo no nosso canal.
Um detalhe é que, sempre que um registro for atualizado para o status de Error, neste nosso evento, eu optei por esperar 5 segundos fixos antes de uma nova tentativa, mas podemos evoluir para estratégias de retentativas mais elaboradas.
Mas para também implementar uma regra de busca, como estamos em um loop infinito, fazer essa consulta sem um delay pode fazer com que a própria AWS nos bloqueie por questões de rate limit. Então optei por utilizar uma estratégia de back-off, onde inicialmente temos um delay de um segundo, e a cada iteração que não encontra nenhum dado no stream, multiplicamos esse delay por dois.
Na primeira iteração o delay será de um segundo, depois dois, quatro, oito, dezesseis, trinta e dois. Esse é o tempo que será esperado em segundos. Assim que esse valor ultrapassar trinta segundos, então mantemos um back-off fixo de trinta segundos. Portanto, vamos esperar exponencialmente, com um tempo máximo de trinta segundos.
## MongoDB Streams
Agora, para o MongoDB, podemos utilizar o método Watch vindo da Collection para sermos notificados sempre que algo acontecer. Esse "algo" nós definimos como filtro do Watch através de uma Pipeline do MongoDB. No nosso caso, vamos tratar de duas Pipelines.
A primeira Pipeline é onde o tipo da operação seja Insert. Então, sempre que houver a inserção de um novo registro nessa Collection, vamos ser notificados. A segunda Pipeline é onde o tipo de operação seja Update e o status do registro que foi atualizado seja Error. Isso indica que o registro foi atualizado para Error, e então vamos ser notificados também. Seguimos a mesma regra que temos na implementação do DynamoDB, esperando 5 segundos no caso de Error antes de mandar para o processamento.
Além disso, ao contrário do DynamoDB Streams, o MongoDB Streams não reprocessa todos os eventos que já aconteceram, apenas novos eventos ou novas operações. Isso significa que dados que estavam esperando para serem processados no banco antes da aplicação subir não serão levados em consideração pelo Stream.
Portanto, assim que a aplicação subir, vamos fazer uma consulta na tabela buscando pelos registros que não foram processados ainda. Esses registros serão então adicionados ao canal.
Com isso, temos o código a seguir:
```go
type MongoStream struct {
collection *mongo.Collection
}
func NewMongoStream(collection *mongo.Collection) *MongoStream {
return &MongoStream{collection: collection}
}
func (stream *MongoStream) FetchEvents() (chan string, error) {
ch := make(chan string)
go stream.consumeExistingEvents(ch)
go stream.consumeErrorEvents(ch)
go stream.consumeNewEvents(ch)
return ch, nil
}
func (stream *MongoStream) consumeExistingEvents(ch chan string) {
cursor, err := stream.collection.Find(context.TODO(), bson.M{"status": bson.M{"$ne": "PROCESSED"}})
if err != nil {
log.Fatalf("Failed to find existing events: %v", err)
}
defer cursor.Close(context.TODO())
for cursor.Next(context.TODO()) {
var outbox Outbox
if err := cursor.Decode(&outbox); err != nil {
log.Printf("Failed to decode existing outbox: %v", err)
continue
}
ch <- outbox.Id
}
if err := cursor.Err(); err != nil {
log.Printf("Cursor error: %v", err)
}
}
func (stream *MongoStream) consumeNewEvents(ch chan string) {
pipeline := mongo.Pipeline{bson.D{{"$match", bson.D{{"operationType", "insert"}}}}}
opts := options.ChangeStream().SetFullDocument(options.UpdateLookup)
changeStream, err := stream.collection.Watch(context.TODO(), pipeline, opts)
if err != nil {
log.Fatalf("Failed to start change stream: %v", err)
}
defer changeStream.Close(context.TODO())
defer close(ch)
for changeStream.Next(context.TODO()) {
var changeEvent struct {
DocumentKey primitive.M `bson:"documentKey,omitempty"`
}
if err := changeStream.Decode(&changeEvent); err != nil {
log.Printf("Failed to decode change stream document: %v", err)
continue
}
ch <- changeEvent.DocumentKey["_id"].(string)
}
if err := changeStream.Err(); err != nil {
log.Printf("Change stream error: %v", err)
}
}
func (stream *MongoStream) consumeErrorEvents(ch chan string) {
pipeline := mongo.Pipeline{bson.D{
{"$match", bson.D{
{"operationType", "update"},
{"fullDocument.status", "ERROR"},
}},
}}
opts := options.ChangeStream().SetFullDocument(options.UpdateLookup)
changeStream, err := stream.collection.Watch(context.TODO(), pipeline, opts)
if err != nil {
log.Fatalf("Failed to start change stream: %v", err)
}
defer changeStream.Close(context.TODO())
defer close(ch)
for changeStream.Next(context.TODO()) {
var changeEvent struct {
DocumentKey primitive.M `bson:"documentKey,omitempty"`
}
if err := changeStream.Decode(&changeEvent); err != nil {
log.Printf("Failed to decode change stream document: %v", err)
continue
}
go func() {
time.Sleep(time.Second * 5)
ch <- changeEvent.DocumentKey["_id"].(string)
}()
}
if err := changeStream.Err(); err != nil {
log.Printf("Change stream error: %v", err)
}
}
```
E por fim, para fecharmos o ciclo, temos a implementação para o envio do evento tanto para o Kafka quanto para o RabbitMQ.
**KafkaEventEmitter**
```go
type KafkaEventEmitter struct {
writer *kafka.Writer
}
func NewKafkaEventEmitter(brokers []string, topic string) *KafkaEventEmitter {
return &KafkaEventEmitter{
writer: &kafka.Writer{
Addr: kafka.TCP(brokers...),
Topic: topic,
Balancer: &kafka.LeastBytes{},
},
}
}
func (k *KafkaEventEmitter) Emit(event *Event) error {
eventBytes, err := json.Marshal(event)
if err != nil {
slog.Error("Error on emit event", "event", event, "error", err)
return err
}
message := kafka.Message{
Value: eventBytes,
Topic: event.Name,
Key: []byte(event.ID),
}
return k.writer.WriteMessages(context.Background(), message)
}
```
**RabbitMqEventEmitter**
```go
type RabbitMqEventEmitter struct {
connection *amqp.Connection
producerChannel *amqp.Channel
}
func NewRabbitMqEventEmitter(server string) EventEmitter {
connection, err := amqp.Dial(server)
if err != nil {
panic(err)
}
producerChannel, err := connection.Channel()
if err != nil {
panic(err)
}
return &RabbitMqEventEmitter{
connection: connection,
producerChannel: producerChannel,
}
}
func (e *RabbitMqEventEmitter) Emit(event *Event) error {
eventBytes, err := json.Marshal(event)
if err != nil {
slog.Error("Error on emit event", "event", event, "error", err)
return err
}
err = e.producerChannel.Publish(
"amq.direct",
event.Name,
false,
false,
amqp.Publishing{ContentType: "text/plain", Body: eventBytes},
)
if err != nil {
slog.Error("Error on publish event", "event", event, "error", err)
return err
}
return nil
}
```
E com isso, finalizamos a aplicação que irá fazer o processamento dos eventos que foram inseridos na nossa tabela. Em caso de falha na publicação no serviço de mensageria, o evento permanece com status de erro para ser processado posteriormente. Podemos ainda definir estratégias para um número limite de tentativas de publicação do evento e, caso esse número seja atingido, emitir notificações via e-mail ou algum alerta em um sistema de monitoramento para que uma equipe veja o motivo do erro.
Pensando em uma grande empresa, pode ser desenvolvido um SDK interno para abstrair a publicação do evento, que no nosso caso é o envio do evento para uma tabela, para que todos os micro-serviços não precisem conhecer os detalhes do DynamoDB, MongoDB ou do lugar onde realmente está sendo salvo.
## Evoluções
Uma evolução interessante a ser feita é no próprio registro do evento, tendo também dados referentes ao serviço de mensageria específico. Por exemplo, se estamos utilizando um tópico no Kafka, a informação do nome do tópico poderia estar no evento. Ou, se estamos utilizando o RabbitMQ, no evento poderíamos ter o nome da Exchange e a routing key, que seriam utilizadas para o envio da mensagem. Se o intuito da mensagem é ser publicada no SQS, por exemplo, podemos ter o ARN ou qualquer informação que identifique a fila SQS onde a mensagem deve ser publicada.
Neste artigo abordamos isso de forma bem simples, onde o processador identifica qual o destino da mensagem, mas poderíamos evoluir para que essas informações estivessem no registro que foi salvo no banco de dados também.
## Conclusão
O uso do padrão Transactional Outbox traz uma segurança muito maior para a resiliência das transações. Com o uso deste padrão, temos a opção de manter um registro de todos os eventos que ocorreram, o que pode ser extremamente útil para fins de auditoria.
A capacidade de armazenar de maneira consistente os eventos e garantir que eles sejam processados corretamente pelos sistemas de mensageria contribui para a robustez do sistema. Além disso, esse padrão permite a recuperação e reprocessamento de eventos em caso de falhas temporárias, aumentando a confiabilidade da aplicação.
A escolha entre DynamoDB, MongoDB ou qualquer outro serviço para implementar esse padrão pode depender de vários fatores, incluindo a familiaridade da equipe com a tecnologia, requisitos de escalabilidade e o ecossistema ao redor. Ambas as soluções oferecem mecanismos de streaming que podem ser utilizados para garantir a consistência de dados e facilitar a construção de sistemas resilientes.
Espero que este artigo tenha fornecido uma visão clara e detalhada sobre como implementar o padrão Transactional Outbox, juntamente com exemplos de código e considerações práticas para diferentes cenários de uso.
[Repositório do Github](https://github.com/ederfmatos/transactional-outbox) | ederfmatos |
1,918,996 | Properties and attributes in Python | When writing code in Python there are many different functions you can write. In these functions you... | 0 | 2024-07-11T19:17:30 | https://dev.to/spencer_adler_880da14d230/properties-and-attributes-in-python-39aj | python, properties, attributes | When writing code in Python there are many different functions you can write. In these functions you can create attributes and property.
The definition of attributes are variables that belong to an object. The definition of properties are attributes that are controlled by methods.
An example of attributes and properties are below.
**Attributes:**
class Traveler:
some attribute= "All members of this class will have this attribute."
def __init__(self, name):
self.name = name
name is an attribute of the traveler class. Since it is inside the function it is instance attribute.
Some attribute will be same for all the travelers while the name can change for each traveler.
The traveler class can have many attributes like age, height etc... These attributes provide more information about the class. Similar to props in React.
**Properties:**
In adding to the code above you can get and set the name using some parameters. Then you would have a property for the name.
def get_name(self):
return self._name
def set_name(self, name):
if type(name)==str and len(name) > 0:
self._name = name
else:
print("Name needs to be a string and longer than 0 characters.")
name = property(get_name,set_name)
get_name gets the name and then set name sets the name with the parameters in the code. When the name is input not following those parameters the console prints out an error message on what the requirements are. Then the property calls get_name and set_name when the property is called. See below for a way to call the property for name.
some_traveler = Traveler(name="Spencer")
name equaling Spencer is passed into the Traveler class and the property name is called. It gets the name and then sets it. Since it is a string and greater than 0 characters it is able to set it without an error message. Now when some_traveler.name is called it will be Spencer.
| spencer_adler_880da14d230 |
1,918,998 | How to install the most recent Python in your Synology diskstation | Synology, the taiwanese manufacturer of the best NASes in the world, deliveres its devices with a... | 0 | 2024-07-10T20:50:35 | https://codehouse.digfish.org/how-to-install-the-most-recent-python-in-your-synology-diskstation/ | python, anaconda, synology, nas | Synology, the taiwanese manufacturer of the best NASes in the world, deliveres its devices with a [RTD1619B](https://gadgetversus.com/processor/realtek-rtd1619b-specs/) processor, which is based the in ARM-64 architecture (also known as aarch64). I possess a [NAS DS223j](https://www.synology.com/en-br/products/DS223j#specs), after owning a DS212j for 11 years since 2012.
Being a Python-savyy developer, it is unfortunate that Synology does not ship its NASes with Python support built-in, so I have to download its Python distribution using the Package Center for the Diskstation. THe problem is that it is a old version of Python: 3.8, which was shipped more than 4 years ago. I need to use the most recent features of Python, so it is an handicap had to use and old Python.
The alternative to use the most recent Python (at the time of this article is 3.21), you can use the Python shipped by Anaconda, which provides a package manager compiled statically available for download called **micromamba**, which you can download by following the instructions at [mamba.readthedocs.io](https://mamba.readthedocs.io/en/latest/installation/micromamba-installation.html#mamba-org-releases).
Here are the steps:
1. In a bash shell, execute `curl -Ls https://micro.mamba.pm/api/micromamba/linux-aarch64/latest | tar -xvj bin/micromamba`
2. This will download the `micromamba` binary into the `bin` subfolder
3. Then, execute `./bin/micromamba shell init -s bash `. This will add a initialization snippet into the `.bashrc` file.
4. Then, do a `source ~/.bashrc` and `micromamba activate && micromamba config append channels conda-forge`
5. The last command will configure micromamba to download the last releases of a python basic development environment which can started by `micromamba install`
6. Once there, execute the `python` executable and voila, you have a very recent compiled python, perhaps no more than 1 month old ! The basic installation also installs `pip`, so you have all the power of Python on your hands!
References:
- <https://avivleemann.github.io/blog/blog/posts/2023-12-07-micromamba/micromamba-guide.html>
- <https://mamba.readthedocs.io/en/latest/installation/micromamba-installation.html#mamba-org-releases>
 | digfish |
1,918,999 | Journey of Streamlining Oncall and Incident Management | For many engineering and operations teams, being available when needed is essential to... | 0 | 2024-07-12T07:30:44 | https://dev.to/pagerlyio/journey-of-streamlining-oncall-and-incident-management-3043 | oncall, devops, incident, sre |
For many engineering and operations teams, being available when needed is essential to maintaining the dependability and availability of their services. One of the main responsibilities is to assist in meeting different SLAs. The key principles of on-call work are discussed in this article along with real-world examples from the industry on how to plan and carry out these tasks for a worldwide team of site reliability engineers (SREs).
## An overview of the main ideas
When there is a person on call, they are available for production incidents promptly and can prevent a breach of service level agreements (SLAs) that could have a major negative impact on the organisation. An SRE team usually dedicates at least 25% of its time to being on call; for instance, they might be on call for one week out of every month.
SREs are engineering teams that, historically, have approached on-call work as more than merely an engineering challenge. Some of the most difficult tasks are managing workloads, scheduling, keeping up with technological advancements, and managing work. Any organisation must also instil the culture of site reliability engineering.
The following are the essential components that SRE teams must take into account in order to successfully handle on-call shifts.
- Timetable for on-call creating on-call plans with the right amount of work-life balance
- Modify the compositionTypical tasks that those who are available for call should complete HandoffIssues should be summarised and given to the person taking the following shift.
- Post-mortem conferencesWeekly conversation about platform stability-related occurrences
- Create plans for escalation.Effective flow of escalation with deadlines for turnaround
- Enhancing the page loadCreating effective pager policies
- runbook upkeepA synopsis that serves as a "Swiss army knife" for SREs who are on call
- Management of Change Coordinating the introduction of platform modifications
- Instruction and record-keeping establishing documentation for the training of both new and current SREs and integrating additional team members
## Scheduling for on-call and using Slack
Traditionally, the purpose of SRE teams has been to maintain complicated distributed software systems. These systems could be set up in a number of data centres worldwide. Teams can use tools like [Pagerly](https://pagerly.io) for creating schedules on Slack.
## Handover for on-call
A "handover" procedure is required at the conclusion of every shift, during which the team taking over on-call responsibilities is informed about on-call matters as well as other pertinent matters. For a total of five consecutive working days, this cycle is repeated. If traffic is less than it is during the week, SRE on-call staff could work one shift per weekend. An extra day off the following week or, if they would choose, cash payment should be given to this person as compensation.
While most SRE teams have the aforementioned structure, some are set up differently, with extremely small satellite teams supplementing a disproportionately big centralised office. If the duties are distributed among several regions in that case, the small satellite teams could feel overburdened and excluded, which could eventually lead to demoralisation and a high turnover rate. The expense of having to deal with on-call concerns outside of regular business hours is then seen as justified by having complete ownership of responsibilities at a single place.
Arranging for a rotation with a team from a particular region
The on-call schedule could be created by dividing the year into quarters, such as January to March, April to June, July to September, and October to December, if the company does not have a multi-region team. One of these groups should be allocated to the current team, and every three months, the nocturnal work effort should be rotated.
It is best to have a timetable like this to support the human sleep cycle and have a well-structured team that cycles every three months rather than every few days, which is more strenuous on people's schedules, as it is not good to be on call a few days per week.
## Management of PTO and vacation time
Managing the personal time off (PTO) plan is essential since the availability and dependability of the platform as a whole is dependent on the SRE position. On-call support needs to take precedence over development work, and the team size should be large enough for those who are not on call to cover for absentees.
There are local holidays specific to each geographic place, such as Thanksgiving in the USA and Diwali in India. Globally, SRE teams should be allowed to switch shifts at these times. Common holidays around the world, including New Year's Day, should be handled like weekends with minimal staff support and a slack pager response time.
[Here is a blog about oncall compensation and way to set rotations
](https://www.pagerly.io/blog/navigating-on-call-compensation-in-the-tech-industry-in-2023#:~:text=Additionally%2C%20compensation%20for%20oncall%20work,their%20expectations%20and%20financial%20needs.)
## Modify the composition
Every shift begins with a briefing given to the on-call engineer about the major events, observations, and any outstanding problems that need to be fixed as part of the handover from the previous shift. Next, the SRE opens the command line terminal, monitoring consoles, dashboards, and ticket queue in preparation for the on-call session.
## Alerts with Slack and Teams
Based on metrics, the SRE and development teams identify SLIs and produce alerts. Event-based monitoring systems can be set up to send out alerts based on events in addition to data. Consider the following scenario: the engineering team and the SREs (during their off-call development time) decide to use the metric cassandra_threadpools_activetasks as a SLI to track the performance of the production Cassandra cluster. In this instance, the Prometheus alert management YAML file can be used by the SRE to configure the alert. The annotation that is highlighted in the sample below can be used to publish alerts. One way to interface with contemporary incident response management systems is to utilise this annotation.
The Prometheus alert manager forwards the alert to the incident response management platform when the alert condition is satisfied. The on-call SRE engineer needs to examine the dashboard's active task count closely and ascertain the cause of the excessive task count by delving into the metrics. Corrective action must be taken after the reason has been identified.
Global integration of these alerting systems with a ticketing system, such Atlassian's Jira ticket management platform, is recommended. Every alert ought to generate a ticket on its own. The SRE and all other stakeholders who responded appropriately to the alert must update the ticket when it has been handled.
## Troubleshooting
The SRE should have a terminal console available to use SSH or any other CLI tools provided by the organisation at the start of the on-call time. The engineering or customer service staff may contact the on-call SRE for assistance with a technical problem. Assume, for instance, that a user's action on the platform—such as hitting the cart's checkout button—produces a distinct request ID. The distributed system's various components—such as the database service, load balancing service, compute service, and others—all interact with this request. The SRE may receive a request ID; when receiving it, they are supposed to provide information about the request ID's life cycle. Some examples of this data include the machines and components that logged the request.
An SRE might be needed to look into network problems if the problem isn't immediately evident, like in the scenario where the request ID stated above wasn't registered by any service. The SRE may use TCPDump for Wireshark, two open-source packet analysis programmes, to record packets in order to rule out any network-related problems. The SRE may enlist the assistance of the network team and ask them to examine the packets in this laborious task.
When troubleshooting such challenges, the cumulative knowledge gathered from the varied backgrounds of SREs in a given team would undoubtedly be helpful. As part of the onboarding process, all of these actions ought to be recorded and subsequently utilised for training new SREs.
## Implementation
The on-call SRE should be in charge of the deployment procedure during business hours. In the event that something goes wrong, the SRE need to be able to resolve the problems and reverse or forward the modifications. SRE should only perform production-impacting emergency deployments and has sufficient knowledge to assist the development team in preventing any negative effects on production. The change management process should be closely integrated with deployment procedures, which should be thoroughly documented.
## Ticket administration (Jira, Slack, JSM, Pagerduty)
SREs keep a close eye on the tickets that are being routed through their queues and are awaiting action. These tickets have a lesser priority than those created by ongoing production issues since they were either generated by the alerting programme or escalated by other teams.
It is usual procedure for every ticket to provide a statement regarding SRE actions that have been completed. The tickets have to be escalated to the appropriate teams if nothing is done about them. When one SRE team passes over to another, the queue should ideally be empty.
[Pagerly can help on following tickets on Tools like Jira, Pagerduty , Opsgenie](https://www.pagerly.io/workflow/jira-slack-2-way-sync)
## Encourage raising the stakes
SREs who are on call are most affected by these problems. The on-call SRE must use all of their skills to swiftly resolve the issue if the monitoring and alerting software fails to notify them or if there is an issue that is undiscovered and only discovered when the customer reports it. The relevant development teams should also be enlisted by the SRE to help.
After the problem is fixed, all pertinent stakeholders should be given a ticket with comprehensive incident documentation, a summary of all the actions performed to fix the problem, and an explanation of what could be automated and notified on. Above all other development effort, this ticket should be developed first.
## Transfer Protocols
During every transition of SRE responsibilities, certain conventions must be observed to enable a seamless handover of the on-call responsibilities to the next personnel member. One such standard is giving the person who is next on call a summary packet. Every ticket in the shift has to be updated and documented with the steps taken to resolve it, any additional comments or queries from the SRE staff, and any clarifications from the development team. These tickets ought to be categorised according to how they affect the dependability and availability of the platform. Tickets that affect production should be marked and categorised, particularly for the post-mortem. Following its compilation and classification, this list of tickets by the on-call SRE ought to be uploaded to a shared communication channel for handover. The team may decide to use a different Slack channel, Microsoft Teams, or the collaborative features found in incident response platforms like [Pagerly](https://pagerly.io) for this. It should be possible for the entire SRE organisation to access this summary.
## Meeting after the death
Every week, all of the engineering leads and SREs attend this meeting. The format of post-mortem sessions is outlined in the flowchart that follows.
Making sure the problems highlighted don't happen again is the post-mortem most crucial result. This is not an easy task to accomplish; the corrective actions could involve anything as basic as creating a script or introducing more code checks, or they could involve something more complex like redesigning the entire application. To come as near to the objective of preventing recurring issues as possible, SRE and development teams should collaborate closely.
## Create an escalation strategy
Every time a problem arises, a ticket with the necessary action items, documentation, and feature requests needs to be filed. It is frequently unclear right away which team will handle a specific ticket. Pagerly routing and tagging features make it possible to automate this process, which helps to overcome this obstacle. It may begin as a customer service ticket at first, and based on the type and severity of the event, it may be escalated to the engineering or SRE teams. The ticket will be returned to customer service after the relevant team has addressed it. The resolution may involve communicating with the customer or it may just involve documenting and closing the issue. Furthermore, this ticket will be reviewed in the post-mortem for additional analysis and be a part of the handoff procedure. To lessen alert fatigue, it is recommended practice to accurately classify and allocate the issue to the highest level of expertise.
## Enhancing the page load
Paging occurs often among members of on-call engineering teams. In order to minimise the frequency of paging, pages must be carefully targeted to the right teams. When there is a problem that warrants a page on the internet, the customer service team is typically the first person to contact. From that point on, as was covered in the previous part, several investigations and escalation procedures must be taken.
Every alarm needs to have a written plan and resolution procedures. When a client reports a problem, for instance, the SRE should check to see whether any alerts are still running and determine whether they are connected in any way to the customer's problem.
Restricting page views of the SRE to genuine good matters should be the aim. When it is impossible to decide which team to page, a central channel of communication must be established so that SRE, engineering, customer service, and other team members can participate, talk about, and address the problem.
## Runbook upkeep
A runbook is a summary of the precise actions—including commands—that an SRE engineer has to take in order to address a specific incident, as opposed to a cheat sheet that lists every command for a certain platform (like Kubernetes or Elasticsearch). When solving difficulties, time is of the essence. If the engineer on call is well-versed in the subject and has a list of instructions and action items at hand, they can implement solutions much more rapidly.
As a team, you may administer a single runbook centrally, or each person could prefer to have their own. Here's an example runbook for you.
One could argue that a large number of the tasks in a runbook could be automated, carried out with Jenkins, or built as separate continuous integration jobs. Although that is the best case scenario, not all SRE teams are experienced enough to carry it out flawlessly. An effective runbook could also be a helpful manual for automating tasks. An engineer's requirement for the command line is constant, thus anything that must be regularly entered into a terminal is a perfect choice for a runbook.
[Pagerly has workflow which helps to annotate each alerts and try to keep runbook updated](https://www.pagerly.io/workflow/annonate-alerts-on-slack)
## Concluding remarks
Creating an on-call rotation plan that works and is sustainable requires careful thought. These include preparing shift changes and scheduling, creating an escalation mechanism, and holding post-mortem analysis meetings following every event. Pagerly is made to plan, carry out, monitor, and automate duties related to standard site reliability engineering responsibilities, such as on-call rotations. | falitjain |
1,919,000 | Validated forms with useFetcher in Remix | Build a custom "useFetcherForm" hook to easily handle fetcher requests. Interacting with the... | 0 | 2024-07-10T21:05:15 | https://blog.sjdonado.com/validated-forms-with-usefetcher-in-remix | remix, react, typescript | > Build a custom "useFetcherForm" hook to easily handle fetcher requests.
Interacting with the server without using `window.navigation` significantly improves the user experience. E.g: Login forms within a dialog box or modal, optimistic UI forms or submitting multiple forms within a complex view.
If you are not familiar with Remix or the useFetcher hook, please refer to:
- https://remix.run/docs/en/main/hooks/use-fetcher
- https://remix.run/docs/en/main/discussion/form-vs-fetcher
## The FetcherForm Provider
The Remix `fetcher` object contains three primary attributes: `fetcher.state`, `fetcher.data` and the method `fetcher.submit`. To interact with them we will use `React.useEffect`.
This post will show how to create a provider that manages the state of a fetcher submitted form, along with a minimal custom hook:
```ts
const { onChange, submitForm, isSubmitted, error } = useFetcherForm();
```
Let's break down the FetcherFormProvider props one by one.
**1) onChange**
External inputs will notify through this method to change the internal state of the provider, it receives a `FormData` argument:
```ts
export default function FetcherFormProvider({
action,
method,
children,
}: {
action: string;
method: SubmitOptions['method'];
children: React.ReactNode;
}) {
const [formData, setFormData] = useState<FormData>();
[...]
return (
<FetcherFormContext.Provider
value={[
(formData: FormData) => {
setFormData(formData);
},
[...]
]}
>
{children}
</FetcherFormContext.Provider>
);
}
```
**2) submitForm**
Since the `formData` was already captured by the `onChange` method, the request can be send by calling `fetcher.submit`:
```ts
export default function FetcherFormProvider({
action,
method,
children,
}: {
action: string;
method: SubmitOptions['method'];
children: React.ReactNode;
}) {
const fetcher = useFetcher();
const [formData, setFormData] = useState<FormData>();
[...]
return (
<FetcherFormContext.Provider
value={[
(formData: FormData) => {
setFormData(formData);
},
() => {
if (formData) {
fetcher.submit(formData, {
method,
action,
});
}
},
[...]
]}
>
{children}
</FetcherFormContext.Provider>
);
}
```
**3) isSubmitted**
Submitting the form is an asynchronous operation. There is a separate variable to listen to the form submitted event: `isSubmitted`. This is helpful in the following cases:
1. To close the Dialog or Modal when the form is successfully submitted.
2. To check from outside that the form was submitted and/or the request returned an OK status.
```diff
export default function FetcherFormProvider({
action,
method,
children,
}: {
action: string;
method: SubmitOptions['method'];
children: React.ReactNode;
}) {
const fetcher = useFetcher();
+ const [isSubmitted, setIsSubmitted] = useState(false);
[...]
const [formData, setFormData] = useState<FormData>();
useEffect(() => {
const response = fetcher.data as { error: string } | undefined;
+ if (isSubmitted || error) return;
if (fetcher.state === 'loading' && response) {
[...]
+ setIsSubmitted(true);
}
}, [fetcher, action, formData, isSubmitted, error]);
return (
<FetcherFormContext.Provider
value={[
(formData: FormData) => {
setFormData(formData);
},
() => {
if (formData) {
fetcher.submit(formData, {
method,
action,
});
}
},
+ isSubmitted,
[...]
]}
>
{children}
</FetcherFormContext.Provider>
);
}
```
**4) error**
One drawback of using Remix `useFetcher` is the lack of a straightforward error handling method. There are proposals in progress to provide a more streamlined error handling approach:
- https://github.com/remix-run/remix/discussions/4645
- https://github.com/remix-run/react-router/discussions/10013
As a workaround we can rely on `fetcher.state` to check if the request is complete and get the message with `fetcher.data` by defining a common structure between the client and server actions.
The highlights
- `const response = fetcher.data as { error: string } | undefined;` -> defines the JSON response structure to be received form the server `return json({ error: new Error() }, { status: 400 } );`
- `if (fetcher.state === 'loading' && response) {` -> checks if the request is completed and a response is available.
```diff
export default function FetcherFormProvider({
action,
method,
children,
}: {
action: string;
method: SubmitOptions['method'];
children: React.ReactNode;
}) {
const fetcher = useFetcher();
const [isSubmitted, setIsSubmitted] = useState(false);
+ const [error, setError] = useState<string>();
const [formData, setFormData] = useState<FormData>();
useEffect(() => {
const response = fetcher.data as { error: string } | undefined;
if (isSubmitted || error) return;
if (fetcher.state === 'loading' && response) {
+ if (response.error) {
+ setError(response.error);
+ return;
+ }
setIsSubmitted(true);
}
}, [fetcher, action, formData, isSubmitted, error]);
return (
<FetcherFormContext.Provider
value={[
(formData: FormData) => {
setFormData(formData);
+ setError(undefined);
},
() => {
if (formData) {
fetcher.submit(formData, {
method,
action,
});
}
},
isSubmitted,
+ error,
]}
>
{children}
</FetcherFormContext.Provider>
);
}
```
Optionally, the error state management can be sent as a callback. This can be received in the `onSubmit` function and registered as state. For example, using a `registeredCallback`:
```diff
- if (response.error) {
- setError(response.error);
- return;
- }
+ registeredCallback?.(response.error);
```
## The useFetcherForm hook
The values sent to `FetcherFormContext.Provider` are defined in the `FetcherFormContext`
```ts
const FetcherFormContext = createContext<
[(formData: FormData) => void, (callback?: () => void) => void, boolean, string?]
>([() => null, () => null, false]);
```
Then the hook exposes them in an object structure:
```ts
export const useFetcherForm = () => {
const [onChange, submitForm, isSubmitted, error] = useContext(FetcherFormContext);
return {
onChange,
submitForm,
isSubmitted,
error,
};
};
```
An example of how it can be defined:
```ts
export function AssignmentUpdateStatusDialogButton({
assignmentId,
status,
}: {
assignmentId: string;
status: AssignmentStatus;
}) {
const [isAttached, setIsAttached] = useState(false);
const dialog = useRef<HTMLDialogElement>();
useEffect(() => {
if (isAttached) {
dialog.current?.showModal();
}
}, [isAttached, dialog]);
return (
<ClientOnly>
{() => (
<>
{isAttached &&
createPortal(
<FetcherFormProvider
action={`/assignments/${assignmentId}/status`}
method="post"
>
<AssignmentUpdateStatusDialog
ref={dialog}
[...]
setIsAttached={setIsAttached}
/>
</FetcherFormProvider>,
document.body
)}
<button
type="button"
className="cursor-pointer leading-none"
onClick={() => setIsAttached(true)}
>
<AssignmentStatusBadge status={status} />
</button>
</>
)}
</ClientOnly>
);
}
```
## Demo
Real-world example available on Github: https://github.com/sjdonado/remix-dashboard/blob/da9445646392626cea065442f7758230b3d8d1fa/app/components/dialog/AssignmentUpdateStatusDialog.tsx#L32C56-L32C70 | sjdonado |
1,919,001 | shadcn-ui/ui codebase analysis: How does shadcn-ui CLI work? — Part 2.10 | I wanted to find out how shadcn-ui CLI works. In this article, I discuss the code used to build the... | 0 | 2024-07-10T21:06:46 | https://dev.to/ramunarasinga/shadcn-uiui-codebase-analysis-how-does-shadcn-ui-cli-work-part-210-3j60 | opensource, shadcnui, nextjs, node | I wanted to find out how shadcn-ui CLI works. In this article, I discuss the code used to build the shadcn-ui/ui CLI.
In part 2.9, we looked at getRegistryStyles function, fetchRegistry function and stylesSchema.
In this article, we will understand the below concepts:
1. getRegistryBaseColors function
2. prompts
3. Creating components.json
4. resolveConfigPaths
getRegistryBaseColors
---------------------
Unlike the getRegistryStyles function, getRegistryBaseColors does not use fetchRegistry function, it simply returns an array as shown below:
```js
export async function getRegistryBaseColors() {
return \[
{
name: "slate",
label: "Slate",
},
{
name: "gray",
label: "Gray",
},
{
name: "zinc",
label: "Zinc",
},
{
name: "neutral",
label: "Neutral",
},
{
name: "stone",
label: "Stone",
},
\]
}
```
prompts
-------
promptForMinimalConfig calls [prompts](https://www.npmjs.com/package/prompts) with an array objects as in the below image.
[Prompts is an npm package](https://www.npmjs.com/package/prompts) is an easy to use CLI prompts to enquire users for information. [Prompts docs](https://www.npmjs.com/package/prompts) has a [lot of examples](https://www.npmjs.com/package/prompts#-examples), do check them out.
Based on the response that you provide in your CLI, it sets the style, baseColor and cssVariables.
```js
const config = rawConfigSchema.parse({
$schema: defaultConfig?.$schema,
style,
tailwind: {
...defaultConfig?.tailwind,
baseColor,
cssVariables,
},
rsc: defaultConfig?.rsc,
tsx: defaultConfig?.tsx,
aliases: defaultConfig?.aliases,
})
```
and these are used in setting the config.
Creating components.json
------------------------
After setting the config, promptsForMinimalConfig creates components.json using this config.
```js
// Write to file.
logger.info("")
const spinner = ora(\`Writing components.json...\`).start()
const targetPath = path.resolve(cwd, "components.json")
await fs.writeFile(targetPath, JSON.stringify(config, null, 2), "utf8")
spinner.succeed()
```
[fs.writeFile](https://nodejs.org/api/fs.html#filehandlewritefiledata-options) asynchronously writes data to a file, replacing the file if it already exists. data can be a string, a buffer, an [<AsyncIterable>](https://tc39.github.io/ecma262/#sec-asynciterable-interface), or an [<Iterable>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterable_protocol) object. The promise is fulfilled with no arguments upon success.
### JSON.stringify(config, null, 2)
We all have seen JSON.stringify(<some variable>) but what are these additional params, null and 2?
Reading the [mdn docs for JSON.stringify](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#examples), JSON.stringify has the below syntax:
```js
JSON.stringify(value)
JSON.stringify(value, replacer)
JSON.stringify(value, replacer, space)
```
This example below demonstrates perfectly
```js
function replacer(key, value) {
// Filtering out properties
if (typeof value === "string") {
return undefined;
}
return value;
}
const foo = {
foundation: "Mozilla",
model: "box",
week: 45,
transport: "car",
month: 7,
};
JSON.stringify(foo, null, 2);
```
resolveConfigPaths
------------------
```js
export async function resolveConfigPaths(cwd: string, config: RawConfig) {
// Read tsconfig.json.
const tsConfig = await loadConfig(cwd)
if (tsConfig.resultType === "failed") {
throw new Error(
\`Failed to load ${config.tsx ? "tsconfig" : "jsconfig"}.json. ${
tsConfig.message ?? ""
}\`.trim()
)
}
return configSchema.parse({
...config,
resolvedPaths: {
tailwindConfig: path.resolve(cwd, config.tailwind.config),
tailwindCss: path.resolve(cwd, config.tailwind.css),
utils: await resolveImport(config.aliases\["utils"\], tsConfig),
components: await resolveImport(config.aliases\["components"\], tsConfig),
ui: config.aliases\["ui"\]
? await resolveImport(config.aliases\["ui"\], tsConfig)
: await resolveImport(config.aliases\["components"\], tsConfig),
},
})
}
```
resolveConfigPaths has the resolvedPaths object with some keys resolved using using path.resolve. Keys like tailwindConfig, tailwindCss, utils, components, ui are set.
Conclusion:
-----------
In this article, I discussed the following concepts:
1. getRegistryBaseColors
Unlike the getRegistryStyles function, getRegistryBaseColors does not use fetchRegistry function, it simply returns an array
2\. prompts
[Prompts](https://www.npmjs.com/package/prompts) package lets you enquire users for information in the CLI. [Prompts docs](https://www.npmjs.com/package/prompts) has a [lot of examples](https://www.npmjs.com/package/prompts#-examples), do check them out.
3\. Creating components.json
promptsForMinimalConfig creates components.json using fs.writeFile
4\. JSON.stringify(config, null, 2)
We all have seen JSON.stringify(<some variable>) but what are these additional params, null and 2 used in shadcn-ui/ui CLI source code?
```js
await fs.writeFile(targetPath, JSON.stringify(config, null, 2), "utf8")
```
[From the mdn docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#examples), JSON.stringify can have any of the following syntax:
```js
JSON.stringify(value)
JSON.stringify(value, replacer)
JSON.stringify(value, replacer, space)
```
> _Want to learn how to build shadcn-ui/ui from scratch? Check out_ [_build-from-scratch_](https://tthroo.com/)
About me:
---------
Website: [https://ramunarasinga.com/](https://ramunarasinga.com/)
Linkedin: [https://www.linkedin.com/in/ramu-narasinga-189361128/](https://www.linkedin.com/in/ramu-narasinga-189361128/)
Github: [https://github.com/Ramu-Narasinga](https://github.com/Ramu-Narasinga)
Email: [ramu.narasinga@gmail.com](mailto:ramu.narasinga@gmail.com)
[Build shadcn-ui/ui from scratch](https://tthroo.com/)
References:
-----------
1. [https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/commands/init.ts#L232](https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/commands/init.ts#L232)
2. [https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/utils/registry/index.ts#L39](https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/utils/registry/index.ts#L39)
3. [https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/utils/get-config.ts#L65](https://github.com/shadcn-ui/ui/blob/main/packages/cli/src/utils/get-config.ts#L65) | ramunarasinga |
1,919,003 | CLOUD COMPUTING THE NEW ERA OF SERVERS. | Cloud computing is one of the fundamentals in any business operation, personal life routines given... | 0 | 2024-07-10T22:56:50 | https://dev.to/emmanuel_adodoadjie/cloud-computing-the-new-era-of-servers-222p |
Cloud computing is one of the fundamentals in any business operation, personal life routines given how quickly our digital world's landscape has changed. Cloud computing allows the deployment of different types of software applications without in-depth knowledge but demand short term access to dynamic resources over IP and can provide fast scalability with greater efficiency. This blog will help you to understand, What is Cloud Computing and Its advantages with deployment models and services model available in cloud.
## What is Cloud Computing?
Cloud computing involves the delivery of various services such as servers, storage and networking over internet. Cloud service providers enable businesses and individuals to rent computing power and storage space, rather than owning their own physical data centers or servers. It allows customers to access (near) unlimited resources, that are available from the internet and manage them with minimalistic cost (for a quite large number of applications).
**Benefits of Cloud Computing**
**Cost Efficiency**: The biggest benefit of cloud computing is the cost savings it provides. Instead, partnering with cloud services enables companies to skirt those capital expenditures by outsourcing the procurement and upkeep of physical hardware. Instead they pay only for what they use via subscription or on a "pay-per-use" model, which can be much more cost efficient.
**Scalability**: This is an area where cloud computing stands out head and shoulder above the rest. It automates the process of scaling resources depending on demand; effectively it adds capacity when needed (such as during peak times) and removes capacity to save you from over-provisioning in quiet periods.
**Disaster Recovery and Business Continuity**: The cloud providers have great DR solutions; So, data will be safe always in case of hardware failure or natural disasters. This improved business continuity and less downtime.
**Accessibility and Collaboration**: With cloud services there is the ability to access work from anywhere you have an internet connection, promoting remote working and collaboration. Work with other teams on live documents and projects from anywhere.
**Automatic Updates & Maintenance**: Businesses are relieved of the overhead of applying software updates, security patches and maintenance which leads to always have access to current features and amenability.
**Green** : Clustering and sharing resources in a cloud-like environment could save the ecology. Cloud providers hosting green data centers
## Cloud Deployment Models
**What is Cloud Deployment Model and its Type**
**Public Cloud**: the public cloud which are service providers, generally offer these run across a standard internet connection and are accessible to anyone that pays for them. Some examples are: Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform. Businesses that require scalability and cost without the hassle of building infrastructure are good candidates for public clouds.
**Private Cloud**: A private cloud is owned and operated by a single organization that has control over the infrastructure it resides. Private: This is best for organizations that require greater control and security due to strict compliance requirements or sensitive data.
**Hybrid Cloud** : The combination of both public and private clouds where data as well applications are shared. This model delivers flexibility and resource optimization, which not only allow companies to keep control of potentially classified information whilst benefiting from the elasticity public clouds offer.
## Cloud Service Models
Cloud computing services are typically categorized into three primary models:
**Infrastructure as a Service (IaaS)**: IaaS provides virtualized computing resources over the internet, including virtual machines, storage, and networking. Users can rent and manage these resources as needed, allowing them to run their own applications and operating systems. Examples include AWS EC2, Microsoft Azure VMs, and Google Compute Engine.
**Platform as a Service (PaaS)**: PaaS offers a platform for developing, testing, and deploying applications without worrying about the underlying infrastructure. It provides tools and frameworks to streamline the development process, making it easier for developers to create and manage applications. Examples include Google App Engine, Microsoft Azure App Services, and AWS Elastic Beanstalk.
**Software as a Service (SaaS)**: SaaS delivers software applications over the internet, on a subscription basis. Users can access these applications through a web browser, eliminating the need for installation and maintenance. Examples include Google Workspace, Microsoft Office 365, and Salesforce.
Cloud computing has revolutionized the way we think about and interact with IT infrastructure. Its benefits, including cost efficiency, scalability, disaster recovery, accessibility, and automatic updates, make it an attractive option for businesses of all sizes. By understanding the various cloud deployment models and service models, organizations can make informed decisions about how to best leverage the cloud to meet their specific needs. As cloud technology continues to evolve, its potential to drive innovation and efficiency will only grow, solidifying its place as a fundamental component of modern computing.
| emmanuel_adodoadjie | |
1,919,016 | Os Principais Pontos para uma Documentação Técnica de Negócios com Arquitetura de Sistemas | Percebo que muitos profissionais tem dificuldade em como estruturar ou desenvolver uma boa... | 0 | 2024-07-10T21:24:17 | https://dev.to/annamatias/desvendando-os-segredos-os-principais-pontos-para-uma-documentacao-tecnica-de-negocios-com-arquitetura-de-sistemas-5blj | programming, learning, documentation, dataengineering | Percebo que muitos profissionais tem dificuldade em como estruturar ou desenvolver uma boa documentação técnica. É imprescindível documentar os processos de negócios e suas regras, além de descrever como o técnico se alinha a cada processo de negócio. Não deixar de incluir quais são as ferramentas/frameworks utilizados, detalhar uma arquitetura técnica até a parte de infraestrutura, não deixando de constar as áreas envolvidas e que são impactadas.
Portanto, com minhas experiências, eu estruturei um padrão com tópicos super pertinentes na hora de redigir uma documentação, deixando pequenas explicações ao longo de cada tópico para te inspirar e assim desenvolver belas documentações funcionais e que com certeza muitas pessoas vão agradecer, além de você.
Centralizar informações é essencial para o nosso trabalho; entender como começou e o atual faz muitas dúvidas serem sanadas, além de estar registrado caso alguém esteja ausente.
## Título da Documentação
Na composição do título, seja objetivo, utilizando padrões como: `<Sistema + Ação>`
> Sugestão: `<nome do sistema> - Processos de Negócio e Mapeamento Técnico`
## Descrição
Descreva de forma objetiva, incluindo o propósito da documentação.
> Exemplo: Nesta documentação, você encontrará como o modelo de negócio funciona, juntamente com processos e funcionalidades técnicas principais.
## Conteúdo da Documentação
Explique como o negócio e os processos técnicos se integram ao modelo da empresa. Isso pode incluir arquitetura, explicações dos processos de negócios até detalhes técnicos, mencionando melhorias operacionais discutidas em conversas ou vídeos, redução de custos, otimização de processos ou melhorias.
> Sugestão: Utilize tabelas para melhorar a visualização, podendo ser do tipo Excel ou feita em markdown (recomendo muito o site: [Markdown Guide](https://www.markdownguide.org/basic-syntax/)).
Segue um exemplo simples:
| Sistema | Ambiente | Tabela | Link completo |
| --------------- | -------- | -------- | ------------------------- |
| Nome do sistema | PRD | dbo.xpto | [https://link.completo](https://link.completo) |
## Requisitos Técnicos
Liste os requisitos de hardware, software e outras infraestruturas necessárias para implementar e/ou acessar, descrevendo links importantes e quem contatar, como solicitar acessos.
## Procedimentos de Implementação
Detalhe passo a passo como foi a implementação, incluindo configuração inicial, treinamento necessário para a equipe e ajustes operacionais. Você pode também descrever a ideia, funcionamento e processos técnicos com documentações de referência, links relevantes ou relatórios.
> **Importante: Descrever pontos de falha, resoluções atuais, assim como áreas para melhoria e atenção.**
## Monitoramento e Manutenção
Especifique como monitorar o desempenho dos processos ao longo do tempo e os procedimentos de manutenção preventiva para garantir sua eficácia contínua.
## Segurança e Privacidade
Descreva quaisquer considerações de segurança cibernética e privacidade de dados relacionadas às ferramentas da arquitetura e como elas são abordadas.
> É interessante trazer pontos de governança de dados, visando uma área de dados, trazer padrões dentro da empresa. Um exemplo bem simples é o Data Contract, para mapear e democratizar os dados.
## Impacto no Negócio
Avalie o impacto esperado das operações nos principais indicadores de desempenho do negócio, como receita, custos operacionais, satisfação do cliente/empresa, etc. É importante identificar as áreas e processos dependentes para prever quem estará envolvido nesses sistemas.
### Sugestões
- Crie tabelas que referenciam quais áreas/pessoas são impactadas. Lembre-se de comparar o antes e o depois dos processos, por exemplo: pessoas necessárias para iniciar um processo e pessoas dependentes dos resultados.
> Essa informação é ouro dentro de uma documentação, principalmente em sistemas legados, muitas vezes é necessário realizar um discovery muito longo de conversas com vários stakeholders até encontrar pessoas certas, isso quando você não encontra e quando descontinua algum serviço ou fica indisponível a pessoa aparece, rs.
## Observações
> Coloque aqui observações importantes, pontos relevantes que merecem atenção e que talvez não se enquadre nos pontos acima, ou simplesmente dedique essa sessão para maior visibilidade das principais observações.
---
## Conclusão
Desejo que com este artigo você tenha desenvolvido uma excelente habilidade na escrita de documentação de negócios e arquitetura técnica. Obrigada por ler até o final, abraçosssss!
> Autora: Anna Karoliny Matias dos Santos, Data Engineer
| annamatias |
1,919,017 | Most In-Demand Programming Languages in Europe and Worldwide: A Discussion | 🌍 What programming languages do you think are most in demand in Europe and worldwide? 💬 Share your... | 0 | 2024-07-10T21:27:23 | https://dev.to/burakboduroglu/most-in-demand-programming-languages-in-europe-and-worldwide-a-discussion-1jdf | beginners, career, discuss, programming | 🌍 What programming languages do you think are most in demand in Europe and worldwide?
💬 Share your thoughts and experiences in the comments!
🤔 We’re curious to hear your perspectives on which languages are leading the job market and why they are so sought after.
📊📱💻 Whether it's for web development, mobile apps, data science, or other fields, let's discuss the trends and factors driving the demand for different programming languages. 👋🏼 | burakboduroglu |
1,919,018 | Do you know these 4 API monitoring pillars? | API observability and monitoring go beyond technical details, requiring an understanding of API... | 0 | 2024-07-10T21:29:26 | https://dev.to/ehikioya/do-you-know-these-4-api-monitoring-pillars-3796 | API observability and monitoring go beyond technical details, requiring an understanding of API health and performance for optimal software experiences.
## Four pillars underpin API observability
**Logs:** Detailed records of API interactions, essential for troubleshooting and understanding user behavior.
**Metrics:** Quantifiable measures of API health, like response times, for gauging performance and identifying bottlenecks.
**Tracing:** Visualization of request journeys across various services, helping pinpoint performance issues and debug complex problems.
**Events:** Alerts for significant API moments, like endpoint deprecation or traffic surges, enabling proactive responses.
These pillars, organizations gain a comprehensive view of API health and can ensure robust, efficient APIs. As technology evolves, I expect observability and monitoring practices to evolve as well, but these pillars remain the foundation for API understanding and management.
My final thought: Devs shy away from API management tools because we think we can handle issues ourselves. But if we're being honest, API issues have cost every senior and mid level dev a lot of money and terrible headaches.
I'd appreciate if you guys could recommend the best API monitoring tools in the comment | ehikioya | |
1,919,019 | What Makes Golden Doodles Special | Golden Doodles Kissimmee are a cross between a Golden Retriever and a Poodle. This combination brings... | 0 | 2024-07-10T21:31:17 | https://dev.to/aronwilliam/what-makes-golden-doodles-special-16j | [Golden Doodles Kissimmee](https://g.page/r/CSIjnm8znrUHEAE) are a cross between a Golden Retriever and a Poodle. This combination brings together the best traits of both breeds, resulting in a dog that is not only friendly and affectionate but also intelligent and easy to train. Here are some reasons why Golden Doodles are such a popular choice:
1. Hypoallergenic Coats: Golden Doodles often inherit the Poodle’s hypoallergenic coat, making them a great option for people with allergies. Their low-shedding fur means less mess and fewer allergens in your home.
2. Friendly Disposition: Known for their sociable nature, Golden Doodles are great with children, other pets, and strangers. They thrive on companionship and love being part of family activities.
3. Intelligence: Golden Doodles are highly intelligent, making them easy to train. They quickly pick up commands and tricks, and their eagerness to please makes them excellent candidates for therapy and assistance work.
4. Versatility: These dogs are versatile and adapt well to different living environments, whether it’s a city apartment or a suburban home with a yard. They enjoy physical activities like walks, hikes, and playtime but are also happy to relax indoors with their family.
| aronwilliam | |
1,919,020 | Total Madness #1: Async/Await | In the last episode (which is also the first episode, lol) we explored a bit of the world of... | 0 | 2024-07-10T21:36:37 | https://dev.to/gmelodie/total-madness-1-asyncawait-1omk | rust, async, futures, concurrency | In the last episode (which is also the first episode, lol) we explored a bit of the world of concurrency by talking about locks. I mean, we didn't use the word "concurrent" explicitly, but effectively that's what we were talking about.
> Concurrency means multiple computations are happening at the same time.
>
> [MIT](https://web.mit.edu/6.005/www/fa14/classes/17-concurrency/)
Today we'll explore a crucial concurrency model: async/await.
Oh and don't you think I forgot about the promise I made about async locks, they're coming in the next post. First, though, we need to understand why async/await is even a thing, and how it *actually* works.
# Episode 1: Async/Await
You might remember the gross example we used to illustrate what happens on a computer when different *tasks* are competing for resources. Here's a refresher:
> Two siblings want to use the toothbrush they share, but obviously only one of them can use it at a time. The childish, sibling-like thing to do is to say “I’m first!” before the other person. The rule is simple: whoever starts saying “I’m first” first, gets to use it.
Now the word *task* here is an important, deliberate choice. We're talking about theoretical concepts, not what one programming language calls `Task` (and another would call `Process`, or `Thread`, or anything else). For us now, a task is simply a sequence of things a computer will do like add 1 to a variable or load a file from disk. For example, `task1` could be updating a file while `task2` would be printing to the screen. Here are the rough steps each task would need to accomplish:
```
Task1
1. task1 loads file from disk to memory (RAM)
2. task1 writes to file in memory
3. task1 saves file from memory to disk
Task2
1. task2 loads matrix of pixels from disk
2. task2 updates matrix of pixels
3. task2 writes matrix of pixes to screen
```
Because we want our computers to do a lot of things at once but have limited processing units (in our theoretical computer, we only have one processing unit!), clever computer people created the concept of **multitasking**, where tasks run intermittently to give the users the *impression* that everything is happening at once. Behind the scenes, however, the computer jiggles tasks like crazy to create this illusion. In our `task1` and `task2` examples from before, the sequence of instructions running could look like this:
```
1. task1 loads file from disk to memory (RAM)
2. task2 loads matrix of pixels from disk
3. task1 writes to file in memory
4. task1 saves file from memory to disk
5. task2 updates matrix of pixels
6. task2 writes matrix of pixes to screen
```
As you can see, the tasks are broken into pieces and jiggled by the processing unit. How would you design an algorithm to do that given a list of tasks?
## Tasks
Ready? A first, naïve idea, is fairly straightforward: we use a `queue` of tasks being run. We cycle through this list and run a part of each task for a little bit of time. Then, when we reach the end of the queue, we go back to the beginning and do it all over again.
Seems simple enough, but a ton of issues can stem from this approach, as well as a ton of ways to solve them. Let's implement a simple task runner following this idea. In case you're new to the posts, the examples are in Rust, but I'll explain the non-trivial parts.
So I'm thinking that we'll eventually need to have a struct holding important information about our executor, but I have no idea what that is at this point, so I'll make an empty struct for now and focus on the methods I want it to have.
```rust
struct Executor {}
impl Executor {
fn new() -> Self {
Self {}
}
}
fn main() {
let mut executor = Executor::new();
}
```
Okay, we have a struct, an associated `new()` function/method that returns a new instance of the struct, and a way to call it. The Rust compiler complains of course: "You're not doing anything!", it says. The compiler is right, so let's do something. But, before we do anything, let's also create a `Task` type that our executor will hold in the queue:
```rust
// new!
struct Task {}
// new!
impl Task {
fn new() -> Self {
Self {}
}
}
struct Executor {
tasks: Vec<Task>, // new: task queue
}
impl Executor {
fn new() -> Self {
Self { tasks: Vec::new() } // create new empty task queue
}
}
fn main() {
let mut executor = Executor::new();
}
```
I added a `Task` struct and a field on our executor to hold a list of tasks (in a `Vec`). But still, we're not really doing anything with it. Our task should also be able to `run()`, so let's add a method for this:
```rust
impl Task {
fn new() -> Self {
Self {}
}
fn run(&mut self) {} // new!
}
// ... rest of code
```
`run()` takes the `Task` it refers to as a mutable reference (hence the `&mut self` as the first argument), this is because it will need to change something in the `Task` struct when `run()`ing. To run our tasks, we'll add a `for` loop that goes from start to finish of the list, calls `run()` on each task, and do that for as long as we have tasks to run:
```rust
// ... rest of code
fn main() {
let mut executor = Executor::new();
// new!
while executor.tasks.len() != 0 { // while there are taks at queue
for task in executor.tasks.iter_mut() { // go over each task at queue
task.run(); // run task
}
}
}
```
Here we used `iter_mut` to get an [`Iterator`](https://doc.rust-lang.org/std/iter/trait.Iterator.html) of mutable references (remember our `run()` method needs to be able to mutate the struct). Now we just need to create some tasks to add to our executor:
```rust
// ... rest of code
fn main() {
let mut executor = Executor::new();
executor.tasks.push(Task::new()); // add task 1
executor.tasks.push(Task::new()); // add task 2
executor.tasks.push(Task::new()); // add task 3
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.run();
}
}
}
```
Nice. But these tasks don't do anything! Let's give each of them a name and make them print to the screen. This is the new entire code:
```rust
struct Task {
name: String,
}
impl Task {
fn new(name: String) -> Self { // new: name
Self { name: name } // new: name
}
fn run(&mut self) {
println!("Hi from task: {}", self.name); // new: print to screen
}
}
struct Executor {
tasks: Vec<Task>,
}
impl Executor {
fn new() -> Self {
Self { tasks: Vec::new() }
}
}
fn main() {
let mut executor = Executor::new();
// new!
executor.tasks.push(Task::new("task1".to_string())); // add task 1
executor.tasks.push(Task::new("task2".to_string())); // add task 2
executor.tasks.push(Task::new("task3".to_string())); // add task 3
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.run();
}
}
}
```
Wohoooo! Our code does *something*! Now the problem is that it never stops "*doing* something". Here's a part of the output:
```
Hi from task: task1
Hi from task: task2
Hi from task: task3
Hi from task: task1
Hi from task: task2
Hi from task: task3
Hi from task: task1
Hi from task: task2
Hi from task: task3
Hi from task: task1
Hi from task: task2
...
```
What is happening here? Going back to our original idea: the plan was to have each task run for a bit, then circle back when we got to the end of the task queue, but we also need two more things: (1) a way for the task to signal it's done and (2) remove all tasks that are done before circling back to the begining of the queue.
For the first issue, the solution is easy:
1. add a `bool` field called `done` to the `Task` struct
2. set the `done` field to `false` when a task is first created (inside `new()`)
3. set the `done` field to `true` at the end of `run()`
**Obs**: I'll also add a simple method `is_done()` to check if the task is done (note that `is_done()` doesn't need `&mut self`, but rather `&self` since it just needs to read the struct, not mutate/change it).
**Obs2**: Don't stress too much about `&self` and `&mut self`, as these concepts are not too important to us.
```rust
struct Task {
name: String,
done: bool,
}
impl Task {
fn new(name: String) -> Self {
Self {
name: name,
done: false, // new!
}
}
// new!
fn is_done(&self) -> bool {
self.done // returns self.done (equivalent to `return self.done;`, note that we don't put a ; at the end with this approach)
}
fn run(&mut self) {
println!("Hi from task: {}", self.name);
self.done = true; // new!
}
}
// ... rest of the code
```
Now for our second issue, we can remove all tasks that are done from the `tasks` vector. A task is `done` if `is_done()` returns `true`. Rather, we'll `retain()` all the tasks that return `false` on `is_done()`:
```rust
// ... rest of the code
fn main() {
let mut executor = Executor::new();
executor.tasks.push(Task::new("task1".to_string())); // add task 1
executor.tasks.push(Task::new("task2".to_string())); // add task 2
executor.tasks.push(Task::new("task3".to_string())); // add task 3
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.run();
}
// new: clean up tasks that are done (aka retain tasks that are not done)
executor.tasks.retain(|task| !task.is_done());
}
}
```
Here's our new output:
```
Hi from task: task1
Hi from task: task2
Hi from task: task3
```
Eureka! Our executor runs the three tasks and stops running. Here's the full code for the curious:
```rust
struct Task {
name: String,
done: bool,
}
impl Task {
fn new(name: String) -> Self {
Self {
name: name,
done: false,
}
}
fn is_done(&self) -> bool {
self.done // returns self.done (equivalent to `return self.done;`, note that we don't put a ; at the end with this approach)
}
fn run(&mut self) {
println!("Hi from task: {}", self.name);
self.done = true;
}
}
struct Executor {
tasks: Vec<Task>,
}
impl Executor {
fn new() -> Self {
Self { tasks: Vec::new() }
}
}
fn main() {
let mut executor = Executor::new();
executor.tasks.push(Task::new("task1".to_string())); // add task 1
executor.tasks.push(Task::new("task2".to_string())); // add task 2
executor.tasks.push(Task::new("task3".to_string())); // add task 3
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.run();
}
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
Okay, but is this really what we wanted? Are we missing something? Think about it, then read on.
## Async
Let's review what we wanted in the beginning:
> A first, naïve idea, is fairly straightforward: we use a `queue` of tasks being run. We cycle through this list and run a part of each task for a little bit of time. Then, when we reach the end of the queue, we go back to the beginning and do it all over again.
We're missing the part where we run each task for **a little bit of time**. Our implementation runs each task to completion before moving on, but that's not what we want. What if one of the tasks took a long time to run, while the next two were super quick? The two tasks would **starve** waiting for the processor to run them. To fix that, we'll first make our example a bit more complicated. Here are the new tasks, see if you can understand how they work (I'll explain below):
```rust
struct Task {
name: String,
done: bool,
run_counter: usize,
}
impl Task {
fn new(name: String) -> Self {
Self {
name, // this is equivalent to `name: name`
done: false,
run_counter: 0,
}
}
fn is_done(&self) -> bool {
self.done
}
fn run(&mut self) {
if self.run_counter == 100 {
self.done = true;
return;
}
self.run_counter += 1;
println!("Hi from task: {}", self.name);
}
}
```
We added a field called `run_counter` that starts with zero and is incremented every time we call `run()`. When the counter is `100` and we call `run()`, the `done` field is set to `true`, and the task returns. Then our executor will clean it up since `is_done() == true`. What this effectively does is make every task print "Hi from task {name}" 100 times. For our purposes, this simulates the task being run partially every time we call `run()` on it.
Ideally, however, we want our tasks to be general and flexible, that is, we want to create a task and pass a function that it'll execute, rather than having it hardcoded in the `run()` method. To do that, let's go back to our tooth-brushing example from the last post.
Let's say Aunt Fefê brushes her teeth exactly `100` times, she's a very meticulous lady! Nathan, however, is not as clean, he brushes his teeth `30` times, and I'll brush mine `20` times. How would this look in terms of code?
First, we create a function that takes in the number of times a person brushes their teeth:
```rust
fn brush_teeth(times: usize) {
for i in 0..times {
println!("Brushing teeth {}", i);
}
}
```
Now, we to make our `run()` function execute the `brush_teeth()` function. There are two ways to do that in Rust: **closures** and **function pointers**. The former requires way too much magic (perhaps a topic for a future post?). Here's how we'd adjust our `Task` type to use function pointers:
```rust
struct Task {
name: String,
done: bool,
max_runs: usize, // new!
run_counter: usize,
func: fn(usize), // new: f is a variable of type function pointer
}
impl Task {
// f is a pointer to a fn that takes a usize as first (and only) argument and returns nothing
fn new(name: String, max_runs: usize, f: fn(usize)) -> Self {
Self {
name,
done: false,
max_runs, // new!
run_counter: 0,
func: f, // new!
}
}
fn is_done(&self) -> bool {
self.done
}
fn run(&mut self) {
if self.run_counter == self.max_runs { // new: run self.max_runs times
self.done = true;
return;
}
self.run_counter += 1;
(self.func)(self.run_counter); // new!
// old: println!("Hi from task: {}", self.name);
}
}
fn brush_teeth(times: usize) {
for i in 0..times {
println!("Brushing teeth {}", i);
}
}
struct Executor {
tasks: Vec<Task>,
}
impl Executor {
fn new() -> Self {
Self { tasks: Vec::new() }
}
}
fn main() {
let mut executor = Executor::new();
let gabe = Task::new("gabe".to_string(), 20, brush_teeth);
let nathan = Task::new("nathan".to_string(), 30, brush_teeth);
let fefe = Task::new("fefe".to_string(), 100, brush_teeth);
executor.tasks.push(gabe);
executor.tasks.push(nathan);
executor.tasks.push(fefe);
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.run();
}
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
Summary of the changes:
1. Added a `func` field that will hold the function pointer to the `Task` struct.
2. Added a `max_runs` field that will hold the number of times to run `brush_teeth`.
3. Added an `f` and `max_runs` as inputs to the `new()` function.
4. Made `run()` call `(self.func)`, effectively executing the function that the task holds.
5. Finally, we changed the call to `executor.tasks.push(Task::new(...))` to include the `brush_teeth` function pointer and `max_runs`.
You might've noticed that this causes a new issue: Aunt Fefê brushes her teeth 5050 times! Why is that? The `run()` function is the culprit:
```rust
fn run(&mut self) {
if self.run_counter == self.max_runs {
self.done = true;
return;
}
self.run_counter += 1;
(self.func)(self.run_counter); // new!
}
```
The issue is that `run()` calls `self.func`, which is `brush_teeth()`, `100` times, but each time `brush_teeth()` runs, it receives `run_counter` as an argument. In the first call, `run_counter` is zero, so Aunt Fefê will brush her teeth one time. The second call will have `run_counter == 2`, making her brush twice. In the end, she'll brush her teeth `100` times in a single call! Adding all of those together gives us `5050` brushes when we wanted only `100` (you can thank [Gauss](https://letstalkscience.ca/educational-resources/backgrounders/gauss-summation) for the calculations here). The fix is as simple as:
```rust
fn run(&mut self) {
if self.run_counter == self.max_runs {
self.done = true;
return;
}
self.run_counter += 1;
(self.func)(1); // fixed!
}
```
This looks good, but our executor is still way too limited. For starters, our `Task` still very much depends on the `func` signature we're passing. What if we wanted to run different tasks? For instance, if I'm brushing my teeth (`brush_teeth(20)`) while Nathan does the dishes (`do_dishes(10, 20)`)? Now we have a problem, because these functions have different signatures (`brush_teeth(usize)` and `do_dishes(usize, usize)`), but our `Task` struct can only hold `fn(usize)`, not `fn(usize, usize)`, and certainly not *both*! We need an even more general and flexible approach. Enter Futures!
**Note:** This next section will be a bit Rust-specific, but bear with me as these concepts are important to really understand async. Also, we'd have to go through this language-specific part ragardless of the language we were using anyway.
## Futures
Ever wonder what the future looks like? Here it is:
```rust
pub trait Future {
type Output;
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>;
}
```
But what are we even looking at here? First of all, let's talk traits. Traits are what other programming languages like Java refer to as an **Interface** (although there might be slight differences between those definitions). In Rust, traits are a way to define general characteristics a type needs to fulfill in order to be considered "something".
An example is in order: let's say a general characteristic a `Person` needs to fulfill in order to be considered a `Sibling` is the ability to `annoy` another `Sibling`. This is how it would look in Rust:
```rust
trait Sibling {
fn annoy(&mut self, other: &dyn Sibling);
}
struct Person {
name: String,
}
impl Person {
fn new(name: String) -> Self {
Self { name }
}
}
impl Sibling for Person {
fn annoy(&mut self, other: &dyn Sibling) {
println!("I am {} and I'm annoying you!", self.name);
}
}
fn main() {
let mut gabe = Person::new("gabriel".to_string());
let nathan = Person::new("nathan".to_string());
gabe.annoy(&nathan);
}
```
This is good because `Person` is not the only type that can be `Sibling`, but any type that implements the `annoy` function. By our definition, any type `MyType` that *implements* all the functions specified in `Sibling` (`impl Sibling for MyType`) **is** a `Sibling`. Say we had an `Elephant` struct. As long as we corrently implement all the functions that `Sibling` requires, with an `impl Sibling for Elephant` clause, then the `Elephant` struct could be a `Sibling` as well!
This is very useful especially when we want to create functions that take or return different types. Remember our problem of `Task` receiving functions of both `fn(usize)` and `fn(usize, usize)`? We could just have it receive a `Future` and it'd be able to receive different types, as long as they're `Future`s.
Now let's go back to the `Future` trait:
```rust
pub trait Future {
type Output;
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>;
}
```
Here we're basically saying: "Any type that implements the `poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>` function is a `Future`".
**Obs**: Another important thing to note is the `Output` type inside the trait. As every task/job/future will have a different output/return type, we need to specify what the output of our Future will be. This will make more sense as we `impl Future for Task`, so don't worry too much about it for now.
You may be wondering what the `poll` function is and what it does. Great thinking! Let's review that next.
## Poll
Remember that in our original tooth brushing implementation we had to `return` every time we wanted to tell the executor "I'm done doing *a little work*"? Well, `poll`ing is a better way to do exactly that. The idea is simple:
- On the executor side we `poll` Futures;
- On the Future side we return one of two possible answers:
1. `Poll::Pending`: "I did some work but there's still more"
2. `Poll::Ready(T)`: "I did some work (or not) and I'm all done! Here's the output `T`"
`Poll` is an enum (not to be mistaken with the function `poll` that returns a variable of the type `enum Poll`). An enum is basically a struct that represents different options, in this case, either `Ready` or `Pending`. For reference, here's the source code for the `Poll` enum:
```rust
pub enum Poll<T> {
Ready(T),
Pending,
}
```
This is a good time to stop and appreciate how much we've covered so far: a lot! Come back later if you need to. Also, it might be a good idea to code along. It can be hard to understand things like the need for `Poll` and `Future` (and even traits) without actually writing code.
\*clears throat\*
Let's continue.
## An async implementation of our executor
Now let's try to use `Poll` and `Future` to solve our problem. First, we'll change our `Task` struct to hold a `Future` instead of a function pointer.
```rust
pub struct Task {
name: String,
done: bool,
future: Pin<Box<dyn Future<Output = String>>>,
}
```
And our `new()` function will take in a future as well:
```rust
pub fn new(name: String, future: impl Future<Output = String> + 'static) -> Self {
Self {
name,
done: false,
future: Box::pin(future),
}
}
```
Again, we need to do that because a function pointer has a strict function signature (like `fn(usize)`, which *needs* to be a function that takes exactly one `usize` and returns **"nothing"**). In other words, all `Task`s will need to have the same function signature, while with `Future`s that's not the case.
**Obs**: Let's accept the concepts of **"nothing"**, `Pin`, `Box`, and the `dyn` keyword as things we need to have for our code to work. We can go into detail about why those are important in a later post.
Now we can write a `poll` method for our `Task` struct:
```rust
pub fn poll(&mut self) -> String {
let binding = futures::task::noop_waker();
let mut cx = Context::from_waker(&binding);
match self.future.as_mut().poll(&mut cx) {
Poll::Ready(output) => {
self.done = true;
output
}
Poll::Pending => "Task not finished".to_string(),
}
}
```
Our `poll()` method in turn calls `poll()` on a mutable reference to our `future` (hence the `.as_mut()` there). Another thing to note is that the `poll()` method on `Future`s takes in a `Context`, but for now we're just using a placeholder from `noop_waker()` that holds no information whatsoever.
Now for the important part: we do a `match` (which is like a switch/case or an if/else clause, but much more powerful) and, if the return result of the `poll()` function is `Poll::Ready(output)` we set `self.done = true`, take that `output` and return it ourselves. Otherwise, if the return result is `Poll::Pending` we return a string saying we're not done.
**Obs:** We will not go into pattern matching and how this makes `match` incredible in this post, again, let's save that discussion for the future.
In our main function, things are pretty much the same:
```rust
fn main() {
let mut executor = Executor::new();
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.poll();
}
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
The only change was `task.run()` to `task.poll()`. But now you may be thinking: "Wait what??? We went through all that work for *this*?! This is stupid.". Well, not quite. You see, there's one thing missing in our `main()`, can you spot what it is? I'll give you a hint, it's actually three things.
We're missing... tasks! We never spawn any! How about we do that:
```rust
fn main() {
let mut executor = Executor::new();
let task1 = Task::new("first_task".to_string(), future);
executor.tasks.push(task1);
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.poll();
}
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
Okay, now we have a task on our executor, but trying to run this code gives us:
```bash
➜ cargo run
Compiling episode-1-async v0.1.0
error[E0425]: cannot find value `future` in this scope
--> src/main.rs:10:53
|
10 | let task1 = Task::new("first_task".to_string(), future);
| ^^^^^^ not found in this scope
For more information about this error, try `rustc --explain E0425`.
error: could not compile `episode-1-async` (bin "default") due to 1 previous error
```
We never specify a `future`! Come to think of it, we haven't talked about how to **create** a future. Here's how: imagine we have a function we want the task to run. All we need to do is add the `async` keyword to that function and some `await` statements inside it to tell the compiler where it should return `Poll::Pending` (aka saying "I'm done working a little"), like so:
```rust
// new!
async fn brush_teeth(times: usize) -> String {
for i in 0..times {
println!("Brushing teeth {}", i);
}
return "Done".to_string();
}
fn main() {
let mut executor = Executor::new();
let future = brush_teeth(10); // new!
let task1 = Task::new("first_task".to_string(), future);
executor.tasks.push(task1);
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.poll();
}
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
This code runs just fine, but we need a final touch. Can you figure out what it is? Hint: try to figure out what the output of the following code will be versus what it *should* be:
```rust
async fn brush_teeth(times: usize) -> String {
for i in 0..times {
println!("Brushing teeth {}", i);
}
return "Done".to_string();
}
fn main() {
let mut executor = Executor::new();
let future = brush_teeth(10);
let task1 = Task::new("first_task".to_string(), future);
executor.tasks.push(task1);
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
task.poll();
}
println!("Went through all tasks once"); // new!
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
The output is:
```
Brushing teeth 0
Brushing teeth 1
Brushing teeth 2
Brushing teeth 3
Brushing teeth 4
Brushing teeth 5
Brushing teeth 6
Brushing teeth 7
Brushing teeth 8
Brushing teeth 9
Went through all tasks once
```
But it should be:
```
Brushing teeth 0
Went through all tasks once
Brushing teeth 1
Went through all tasks once
Brushing teeth 2
Went through all tasks once
Brushing teeth 3
Went through all tasks once
Brushing teeth 4
Went through all tasks once
Brushing teeth 5
Went through all tasks once
Brushing teeth 6
Went through all tasks once
Brushing teeth 7
Went through all tasks once
Brushing teeth 8
Went through all tasks once
Brushing teeth 9
Went through all tasks once
```
One way to let our executor know we're done running a little is to use the `pending!()` macro from the `futures` crate. A crate is a library in Rust. A library is a collection of utilities (functions, structs, traits, enums, etc.) you can `use` in your code. Here's how we'll use this:
```rust
use futures::pending; // import the pending!() macro
async fn brush_teeth(times: usize) -> String {
for i in 0..times {
println!("Brushing teeth {}", i);
pending!(); // new: I'm done with "a little work" (aka return Poll::Pending)
}
return "Done".to_string(); // I'm done with all the work (aka return Poll::Ready("Done")
}
```
The `use futures::pending` line imports the `pending!()` macro. A macro is used like a function, so we can see it as that (see [Appendix I](#appendix-i-rust-macros) for more about Rust macros). Another way of having `brush_teeth()` return after "a little" work is done would be to have a type `BrushTeethFuture` and implement the `Future` trait on it (`impl Future for BrushTeethFuture`) aka implement the `poll()` function which would return `Poll::Pending` after a single brush. In fact, that's a good exercise for the reader: try to implement `Future` for a `struct BrushTeethFuture`, put it inside our `Task`, and have the `Executor` run it and get the expected result.
Now let's unfold what the `pending!()` macro actually does. Here's the [source code](https://docs.rs/futures-util/0.3.30/src/futures_util/async_await/pending.rs.html) for it:
```rust
use core::pin::Pin;
use futures_core::future::Future;
use futures_core::task::{Context, Poll};
/// A macro which yields to the event loop once.
///
/// This is equivalent to returning [`Poll::Pending`](futures_core::task::Poll)
/// from a [`Future::poll`](futures_core::future::Future::poll) implementation.
/// Similarly, when using this macro, it must be ensured that [`wake`](std::task::Waker::wake)
/// is called somewhere when further progress can be made.
///
/// This macro is only usable inside of async functions, closures, and blocks.
/// It is also gated behind the `async-await` feature of this library, which is
/// activated by default.
#[macro_export]
macro_rules! pending {
() => {
$crate::__private::async_await::pending_once().await
};
}
#[doc(hidden)]
pub fn pending_once() -> PendingOnce {
PendingOnce { is_ready: false }
}
#[allow(missing_debug_implementations)]
#[doc(hidden)]
pub struct PendingOnce {
is_ready: bool,
}
impl Future for PendingOnce {
type Output = ();
fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
if self.is_ready {
Poll::Ready(())
} else {
self.is_ready = true;
Poll::Pending
}
}
}
```
Phew! This may look like a mess, but it's actually pretty simple. Here's the breakdown:
1. There's a struct `PendingOnce` that holds an `is_ready` boolean field.
2. The `Future` trait is implemented for `PendingOnce`.
3. When `poll()` is called on `PendingOnce`:
- If `is_ready == false`: set it to `true` and return `Poll::Pending`.
- If `is_ready == true`: return `Poll::Ready(())`.
4. There's a function `pending_once()` that returns an instance of the `PendingOnce` struct with the `is_ready` field set to `false`. Much like our `Task::new()` and `Executor::new()` functions that create initialized structs.
What all of this effectively does is create a type (a `struct`) that returns `Poll::Pending` when first `poll()`ing, and after that it'll always return `Poll::Ready` (hence the name `PendingOnce`). The `pending!()` macro calls `pending_once().await`, which will make the future run. That's all `await` is.
And voilà! Here's our output now:
```
Brushing teeth 0
Went through all tasks once
Brushing teeth 1
Went through all tasks once
Brushing teeth 2
Went through all tasks once
Brushing teeth 3
Went through all tasks once
Brushing teeth 4
Went through all tasks once
Brushing teeth 5
Went through all tasks once
Brushing teeth 6
Went through all tasks once
Brushing teeth 7
Went through all tasks once
Brushing teeth 8
Went through all tasks once
Brushing teeth 9
Went through all tasks once
Went through all tasks once
```
As a final exercise, try to figure out why `Went through all tasks once` appears twice in the end.
Now of course there is one last thing (I promise) for us to do: solve our original toothbrushing problem. For that, all we need to do is add some tasks. Here's what that would look like:
```rust
fn main() {
let mut executor = Executor::new();
let task_gabe = Task::new("gabe".to_string(), brush_teeth(20)); // new: gabe + brush_teeth(20)
let task_nat = Task::new("nat".to_string(), brush_teeth(30)); // new: nat + brush_teeth(30)
let task_fefe = Task::new("fefe".to_string(), brush_teeth(100)); // new: fefe + brush_teeth(100)
// new: push tasks
executor.tasks.push(task_gabe);
executor.tasks.push(task_nat);
executor.tasks.push(task_fefe);
while executor.tasks.len() != 0 {
for task in executor.tasks.iter_mut() {
print!("{}: ", task.name); // new: print task.name
task.poll();
}
println!("--- Went through all tasks once"); // new: "--- " for better readability
// clean up tasks that are done
executor.tasks.retain(|task| !task.is_done());
}
}
```
Here's the output for that code. Note that the executor cycles through the three tasks, but as long as `gabe` finishes, then only `nat` and `fefe` are alternating, until when there's only `fefe` left and it runs forever:
```
gabe: Brushing teeth 0
nat: Brushing teeth 0
fefe: Brushing teeth 0
--- Went through all tasks once
gabe: Brushing teeth 1
nat: Brushing teeth 1
fefe: Brushing teeth 1
--- Went through all tasks once
gabe: Brushing teeth 2
nat: Brushing teeth 2
fefe: Brushing teeth 2
--- Went through all tasks once
gabe: Brushing teeth 3
nat: Brushing teeth 3
fefe: Brushing teeth 3
--- Went through all tasks once
gabe: Brushing teeth 4
nat: Brushing teeth 4
fefe: Brushing teeth 4
--- Went through all tasks once
gabe: Brushing teeth 5
nat: Brushing teeth 5
fefe: Brushing teeth 5
--- Went through all tasks once
gabe: Brushing teeth 6
nat: Brushing teeth 6
fefe: Brushing teeth 6
--- Went through all tasks once
gabe: Brushing teeth 7
nat: Brushing teeth 7
fefe: Brushing teeth 7
--- Went through all tasks once
gabe: Brushing teeth 8
nat: Brushing teeth 8
fefe: Brushing teeth 8
--- Went through all tasks once
gabe: Brushing teeth 9
nat: Brushing teeth 9
fefe: Brushing teeth 9
--- Went through all tasks once
gabe: Brushing teeth 10
nat: Brushing teeth 10
fefe: Brushing teeth 10
--- Went through all tasks once
gabe: Brushing teeth 11
nat: Brushing teeth 11
fefe: Brushing teeth 11
--- Went through all tasks once
gabe: Brushing teeth 12
nat: Brushing teeth 12
fefe: Brushing teeth 12
--- Went through all tasks once
gabe: Brushing teeth 13
nat: Brushing teeth 13
fefe: Brushing teeth 13
--- Went through all tasks once
gabe: Brushing teeth 14
nat: Brushing teeth 14
fefe: Brushing teeth 14
--- Went through all tasks once
gabe: Brushing teeth 15
nat: Brushing teeth 15
fefe: Brushing teeth 15
--- Went through all tasks once
gabe: Brushing teeth 16
nat: Brushing teeth 16
fefe: Brushing teeth 16
--- Went through all tasks once
gabe: Brushing teeth 17
nat: Brushing teeth 17
fefe: Brushing teeth 17
--- Went through all tasks once
gabe: Brushing teeth 18
nat: Brushing teeth 18
fefe: Brushing teeth 18
--- Went through all tasks once
gabe: Brushing teeth 19
nat: Brushing teeth 19
fefe: Brushing teeth 19
--- Went through all tasks once
gabe: nat: Brushing teeth 20
fefe: Brushing teeth 20
--- Went through all tasks once
nat: Brushing teeth 21
fefe: Brushing teeth 21
--- Went through all tasks once
nat: Brushing teeth 22
fefe: Brushing teeth 22
--- Went through all tasks once
nat: Brushing teeth 23
fefe: Brushing teeth 23
--- Went through all tasks once
nat: Brushing teeth 24
fefe: Brushing teeth 24
--- Went through all tasks once
nat: Brushing teeth 25
fefe: Brushing teeth 25
--- Went through all tasks once
nat: Brushing teeth 26
fefe: Brushing teeth 26
--- Went through all tasks once
nat: Brushing teeth 27
fefe: Brushing teeth 27
--- Went through all tasks once
nat: Brushing teeth 28
fefe: Brushing teeth 28
--- Went through all tasks once
nat: Brushing teeth 29
fefe: Brushing teeth 29
--- Went through all tasks once
nat: fefe: Brushing teeth 30
--- Went through all tasks once
fefe: Brushing teeth 31
--- Went through all tasks once
fefe: Brushing teeth 32
--- Went through all tasks once
...
```
## Appendix I: Rust Macros
Macros are processed before the actual code is compiled, and thus is an effective way to include and alter source code before compilation. On our `pending_once` example, the `pending!()` macro is defined as follows:
```rust
#[macro_export]
macro_rules! pending {
() => {
$crate::__private::async_await::pending_once().await
};
}
```
This roughly means that when we call it in our code, the compile will replace `pending!()` with `futures::__private::async_await::pending_once().await`. So, when compiled, our code *actually* looks like this:
```rust
use futures::pending;
async fn brush_teeth(times: usize) -> String {
for i in 0..times {
println!("Brushing teeth {}", i);
futures::__private::async_await::pending_once().await;
}
return "Done".to_string(); // I'm done with all the work
}
```
In this case, the macro is a mere and simple convenience, but they can be incredibly powerful. For more information check out [The Little Book of Rust Macros](https://veykril.github.io/tlborm/).
---
Thank you for reading! You can find the full source code for this episode at https://github.com/gmelodie/total-madness.
## References
- [Operating Systems: Three Easy Pieces](https://pages.cs.wisc.edu/~remzi/OSTEP/threads-locks.pdf): I should note that I intentionally tried to mimic the writing style of this book, in which you make the reader stop and think before giving the answers. Huge shoutouts!
- [The Little Book of Rust Macros](https://veykril.github.io/tlborm/)
| gmelodie |
1,919,021 | Made a new logo for Place! | Hopefully when Place 2 is finished, mobile support will be a LOT better, it's completely disabled... | 0 | 2024-07-10T21:33:10 | https://dev.to/aud/made-a-new-logo-for-place-40l4 | Hopefully when Place 2 is finished, mobile support will be a LOT better, it's completely disabled right now.
Anyway, the new logo is available on the beta site, [here!](https://beta.placepixel.online/)
Have fun!
 | aud | |
1,919,022 | How to work with an external API to seed your database | Seeding a database with data from an external API can be a super great way to populate your... | 0 | 2024-07-10T21:43:35 | https://dev.to/chimichimi123/how-to-work-with-an-external-api-to-seed-your-database-16i9 | Seeding a database with data from an external API can be a super great way to populate your application with real world data. whether it be product information, user data or something else entirely like geographical details, using an external API can save you a lot of time and effort in the long run. In this blog I'm gonna kinda go over how to work with an external API specifically for seeding your DB (if that wasn't obvious from the title).
1, **Choose the right API**
First step might seem a bit obvious but you need to choose the right API for your application. A few key things to consider are the data accuracy, the limit rate, update frequency and the routes provided, not all API's are equal, some may be for the same thing, but one may provide much much more information than the other. In this example I'll just use a hypothetical API that provides information about books.
2, **Setting up your project**
Make sure that you alreadt have a database and project set up, I'll be going off of Flask with SQLAlchemy for this example so for that your project structure should look something like this
```
/myapp
/models.py
/app.py
/seed.py
/requirements.txt
```
3, **Create your models**
You need to define the database models that are going to store the API data, so like if you're working with the book data your model would look something like this
```
class Book(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(150), nullable=False)
author = db.Column(db.String(100), nullable=False)
published_date = db.Column(db.String(10))
isbn = db.Column(db.String(13))
pages = db.Column(db.Integer)
cover = db.Column(db.String(150))
language = db.Column(db.String(50))
```
4, **Fetch data from the API**
To do this you need to write a script to fetch data from the external API. this script will basically just parse the API response and insert the data into your database, below is an example I wrote.
```
def fetch_books():
response = requests.get('https://api.example.com/books')
if response.status_code == 200:
return response.json()
else:
raise Exception('Failed to fetch data from API')
def seed_books():
books = fetch_books()
for book in books:
new_book = Book(
title=book['title'],
author=book['author'],
published_date=book['published_date'],
isbn=book['isbn'],
pages=book['pages'],
cover=book['cover'],
language=book['language']
)
db.session.add(new_book)
db.session.commit()
if __name__ == '__main__':
seed_books()
```
5, **Run the script**
Now you just run the script using python seed.py in the terminal.
6, **Verify everything is correct**
Just check your database in vscode to make sure that the data you wanted was correctly inserted.
## Conclusion
Seeding your database with the help of an external API can greatly enhance the functionality of your application as well as save you a lot of time tediously seeding your database manually. By following these steps you should be able to seamlessly integrate real world external data into your application. | chimichimi123 | |
1,919,023 | Practice for beginners? | Hola! I recently began my journey with coding and am excited to find out more about resources that... | 0 | 2024-07-10T21:44:00 | https://dev.to/coderudy/practice-for-beginners-165o | Hola! I recently began my journey with coding and am excited to find out more about resources that will allow me some extra practice during my free time from work and school. I recently downloaded the MIMO app and have found it very enjoyable. What works for you? | coderudy | |
1,919,024 | Day 1 - JavaScript Essential Training | Today, I want to share something that has significantly improved my coding workflow: useful... | 0 | 2024-07-10T21:46:44 | https://dev.to/ryoichihomma/day-1-javascript-essential-training-on-linkedin-learning-20h | javascript, extensions, vscode, linkedinlearning | Today, I want to share something that has significantly improved my coding workflow: useful extensions for VS Code and Cursor.
Here are two extensions that have made a big difference in my coding experience:
## 1. ESLint
**ESLint** is a tool for identifying and reporting on patterns found in JavaScript code. It helps ensure that your code adheres to a consistent style and catches potential errors early. Here's why I love using ESLint:
- **Error Prevention:** ESLint helps catch syntax and logical errors before they become a problem.
- **Code Consistency:** By enforcing coding standards, ESLint ensures that my code looks clean and follows best practices.
- **Customizable Rules:** You can tailor ESLint rules to match your project's requirements or personal preferences.
To get started with ESLint, you need to install the extension in VS Code and then set up a configuration file in your project. The configuration can be as simple or as detailed as you like, allowing you to focus on writing quality code.
## 2. Prettier - Code Formatter
**Prettier** is another must-have extension that helps keep your code neat and readable. It automatically formats your code according to a consistent style, saving you time and reducing the need for manual formatting. Here’s why I find Prettier indispensable:
- **Automatic Formatting:** Prettier formats your code every time you save, ensuring it looks clean and professional.
- **Consistency Across Projects:** By using Prettier, you can maintain a consistent coding style across different projects.
- **Easy to Configure:** Prettier integrates seamlessly with ESLint, allowing you to use both extensions together without conflicts.
To set up Prettier, simply install the extension in VS Code and add a configuration file to your project. You can customize the formatting rules or stick with the default settings.
## Conclusion
Using ESLint and Prettier has greatly enhanced my coding efficiency and code quality. These tools take care of the nitty-gritty details, allowing me to focus on writing great code and learning new concepts.
If you’re not already using these extensions, I highly recommend giving them a try. They’re easy to set up and can make a significant difference in your coding workflow. | ryoichihomma |
1,919,025 | 5 Essential Flags to Enable on Your TypeScript Code | Introduction TypeScript is a powerful tool that brings static typing to JavaScript,... | 0 | 2024-07-10T21:53:05 | https://dev.to/geraldhamiltonwicks/5-essential-flags-to-enable-on-your-typescript-code-271k | typescript, javascript, programming | ## Introduction
TypeScript is a powerful tool that brings static typing to JavaScript, providing a robust foundation for building scalable and maintainable applications. To maximize the benefits of TypeScript, it's crucial to enable certain compiler options flags that enhance type safety and code quality. In this article, we'll explore five essential flags you should enable in your TypeScript projects and how they can help you write better code.
## Initial Setup
In this article, we will cover the TypeScript flags: `noImplicitAny`, `strictNullChecks`, `strictPropertyInitialization`, `noImplicitReturns`, and `noUnusedParameters`. To enable each flag, you need to update your `tsconfig.json` file, setting these flags to true as shown in the example below:
```json
{
"compilerOptions": {
// ...other configurations
"noImplicitAny": true,
"strictNullChecks": true,
"strictPropertyInitialization": true,
"noImplicitReturns": true,
"noUnusedParameters": true
}
}
```
## 1. Avoid using 'any' type
- **Flag:** `noImplicitAny`
- **Description:** The `noImplicitAny` flag ensures that you explicitly declare types instead of defaulting to the `any` type. This enhances type safety by preventing untyped variables from creeping into your codebase.
- **Pro Tip:** Instead of using `any`, leverage the `unknown` type. To check if a variable is of the type you want, use type guards. If you're unfamiliar with type guards, check out this article: [Elevate Your TypeScript Skills with Type Guards](https://dev.to/geraldhamiltonwicks/elevate-your-typescript-skills-with-type-guards-ts-36k7). This practice enforces better type checks and reduces runtime errors.
When you enable `noImplicitAny`, TypeScript will issue an error whenever it would have inferred `any`:
```typescript
function fn(s) {
// Type Error: Parameter 's' implicitly has an 'any' type.
console.log(s.subtr(3));
}
```
## 2. Enable strict null checks
- **Flag:** `strictNullChecks`
- **Description:** Enabling `strictNullChecks` ensures that `null` and `undefined` are only assignable to their respective types. This prevents common pitfalls related to null values and improves code reliability.
- **Pro Tip:** Use optional chaining (`?.`) and nullish coalescing (`??`) operators to handle `null` and `undefined` values gracefully.
Setting `strictNullChecks` to true will raise an error if you try to use a variable that could be `null` or `undefined` without a proper check:
```typescript
declare const loggedInUsername: string;
const users = [
{ name: "Oby", age: 12 },
{ name: "Heera", age: 32 },
];
const loggedInUser = users.find((u) => u.name === loggedInUsername);
// Type Error: 'loggedInUser' is possibly 'undefined'.
console.log(loggedInUser.age);
```
## 3. Enforce strict property initialization
- **Flag:** `strictPropertyInitialization`
- **Description:** The `strictPropertyInitialization` flag ensures that all class properties are initialized either in the constructor or with a default value. This helps catch uninitialized properties early in the development process.
- **Pro Tip:** Use definite assignment assertions (`!`) when you're sure a property will be initialized by the time it's accessed.
When set to true, TypeScript will raise an error when a class property is declared but not set in the constructor:
```typescript
class UserAccount {
name: string;
accountType = "user";
// Type Error: Property 'email' has no initializer and is not definitely assigned in the constructor.
email: string;
constructor(name: string) {
this.name = name;
// Note that this.email is not set
}
}
```
## 4. Enable noImplicitReturns
- **Flag:** `noImplicitReturns`
- **Description:** The `noImplicitReturns` flag ensures that all code paths in a function return a value. This helps catch logical errors where a function might accidentally return `undefined` or no value at all.
- **Pro Tip:** Review your functions to ensure they have consistent return statements, providing a clear and predictable flow of data.
When enabled, TypeScript will check all code paths in a function to ensure they return a value:
```typescript
// Type Error: Function lacks ending return statement and return type does not include 'undefined'.
function lookupHeadphonesManufacturer(color: "blue" | "black"): string {
if (color === "blue") {
return "beats";
} else {
("bose");
}
}
```
## 5. Enable noUnusedLocals and noUnusedParameters
- **Flags:** `noUnusedLocals`, `noUnusedParameters`
- **Description:** These flags help you maintain a clean codebase by reporting unused local variables and parameters. This reduces clutter and makes the code more readable.
- **Pro Tip:** Regularly review and refactor your code to remove unused variables and parameters, keeping your codebase clean and efficient.
These flags will report errors for unused variables and parameters, helping you keep your code tidy:
```typescript
// Type Error: 'modelID' is declared but its value is never read.
const createDefaultKeyboard = (modelID: number) => {
const defaultModelID = 23;
return { type: "keyboard", modelID: defaultModelID };
};
```
## Conclusion
Enabling these essential TypeScript flags not only enhances type safety but also promotes best practices and code maintainability. By leveraging TypeScript's powerful type system and compiler options, you can write more robust and reliable code, ultimately leading to a smoother development experience.
By incorporating these flags and best practices into your TypeScript projects, you'll be well on your way to writing cleaner, safer, and more maintainable code. And you, what are the flags that you use in your TypeScript code? | geraldhamiltonwicks |
1,919,026 | Hospede seu site Django com arquivos estáticos na Vercel gratuitamente (Novo Método) | Hospedar um site Django completo pode ser um desafio, especialmente ao optar por plataformas... | 0 | 2024-07-12T18:24:17 | https://dev.to/aghastygd/hospede-seu-site-django-com-arquivos-estaticos-na-vercel-gratuitamente-novo-metodo-339p | tutorial, vercel, django, python | Hospedar um site Django completo pode ser um desafio, especialmente ao optar por plataformas gratuitas. No entanto, com a Vercel, você pode configurar seu site para ser hospedado sem custo algum 💸 , e com os arquivos estáticos funcionando corretamente utilizando esse novo método sem erros 🤩.
Neste tutorial, você será guiado por todo o processo, desde a preparação do ambiente até o deploy final.
####Requisitos:
- Ter um projeto Django funcional na sua máquina
- Ter Python instalado
Atendendo esses requisitos, você já pode continuar o tutorial abaixo:
## Preparando o ambiente
####**Passo 1:**
Abra o arquivo `wsgi.py` do seu projeto, normalmente localizado dentro do seu diretorio "project_name e adicione a seguinte linha no final:
```
import os
from django.core.wsgi import get_wsgi_application
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'nomedoseuprojeto.settings')
application = get_wsgi_application()
# esta linha
app = application
```
#### **Passo 2:**
Navegue até a pasta raiz do seu projeto e crie o arquivo `vercel.json` com o seguinte código:
```
{
"version": 2,
"builds": [
{
"src": "nomedoseuprojeto/wsgi.py",
"use": "@vercel/python",
"config": { "maxLambdaSize": "15mb", "runtime": "python3.9" }
}],
"routes": [
{
"src": "/(.*)",
"dest": "nomedoseuprojeto/wsgi.py"
}
]
}
```
Substitua "nomedoseuprojeto" pelo nome do diretório onde está localizado o arquivo `wsgi.py` do seu projeto Django
#### **Explicação (pode pular se quiser):**
O arquivo `vercel.json` configura como seu projeto será construído e roteado na plataforma Vercel
- **version: 2**: Define a versão da configuração da Vercel (geralmente 1 ou 2).
- **builds**: Especifica como seu projeto será construído.
- **src**: Caminho para o arquivo `wsgi.py` do seu projeto Django.
- **use**: Usa o ambiente Python da Vercel.
- **config**: Configurações específicas para Python, como tamanho máximo do pacote e versão.
- **routes**: Define como as solicitações HTTP são roteadas.
- **src**: Todas as solicitações HTTP.
- **dest**: Encaminha para `wsgi.py` do seu projeto.
Agora com o vercel.json criado corretamente, no próximo passo você irá adicionar um script bash para executar comandos de terminal na plataforma Vercel.
####Passo 3:
Na pasta raíz do seu projeto, crie mais um arquivo `build.sh` com o seguinte código:
```
# build.sh
echo "Starting build script"
pip install -r requirements.txt
# make migrations
python3 manage.py makemigrations
python3 manage.py migrate
# collectstatic
python3 manage.py collectstatic
echo "Build script completed"
```
####**Passo 4**:
Gere um requirements.txt de todas as dependências do seu projeto, e adicione `whitenoise` na lista, conforme o exemplo abaixo:
```
# outras dependências...
Django==5.0.6
whitenoise==6.7.0
```
No momento da escrita deste post, a versão atual do WhiteNoise é a 6.7.0. Sinta-se à vontade para usar uma versão mais recente no seu caso.
####**Explicação**:
- **WhiteNoise** é uma biblioteca Python que ajuda a servir arquivos estáticos em aplicações web de maneira eficiente. É frequentemente usado com Django para simplificar a configuração e melhorar o desempenho no serviço de arquivos estáticos como CSS, JavaScript e imagens, muito útil para hospedagem em plataformas cloud.
####**Passo 5**:
Adicione o middleware do whitenoise no `settings.py` do seu projeto:
```
'django.middleware.security.SecurityMiddleware',
'whitenoise.middleware.WhiteNoiseMiddleware', # Adicione esta linha
```
Configure a localização dos seus arquivos estáticos:
```
STATIC_URL = 'static/'
STATIC_ROOT = (BASE_DIR/"static/")
```
E se preferir, adicione também a seguinte configuração para ativar a compressão e armazenamento em cache, garantindo melhor performance na sua aplicação:
```
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
```
##Fazendo Deploy na Vercel
Agora que você preparou o ambiente, está pronto para fazer o deploy do seu projeto na Vercel. Siga os passos abaixo para completar o processo:
1 - **Crie uma conta na plataforma [Vercel](vercel.com)** se ainda não tiver
2 - **Importe o repositório git do seu projeto:**
3 - **Configure as variáveis de ambiente se o seu projeto precisar de alguma e depois clique em "Deploy"**:
4 - **Aguarde o processo:**
5 - **Finalmente, após a conclusão do processo, você deve ver uma tela semelhante a esta:**
E booyah! Você conseguiu hospedar o seu projeto Django com arquivos estáticos na Vercel! Parabéns pelo feito, é um grande passo!
Prepare-se para futuras jornadas, pois, uma vez que a Vercel é serverless, você não poderá realizar tarefas de escrita diretamente na Vercel, como upload de imagens e vídeos. No entanto, não se preocupe, Em um artigo futuro, você aprenderá como fazer isso gratuitamente utilizando a API de outra plataforma gratuita que serve arquivos de mídia, sem custos. 💸🫡
**Nota:** Se o seu projeto Django estiver utilizando o banco de dados SQLite, que é geralmente gerado em todos os projetos Django, não será possível realizar gravações diretamente na Vercel. Para isso, será necessário utilizar um servidor de banco de dados. A Vercel oferece uma instância gratuita de PostgreSQL que pode ser configurada no seu projeto.
##Links Utéis
- **Código-fonte do Projeto usado para deploy neste tutorial:** https://github.com/AghastyGD/ai-interview-django/tree/deploy (acesse a branch deploy)
- **Documentação do Whitenoise**: https://whitenoise.readthedocs.io/en/stable/django.html
Volte sempre! ❤️ Dúvidas? deixe nos comentários!
| aghastygd |
1,919,027 | 18 Métodos de Arrays em JavaScript que Você Deveria Saber | Os arrays são uma parte essencial da programação em JavaScript, proporcionando uma maneira poderosa... | 0 | 2024-07-10T21:56:36 | https://josafa.com.br/blog/18-metodos-de-array-em-javascript-que-voce-deveria-saber/ | javascript, programming, braziliandevs | Os arrays são uma parte essencial da programação em JavaScript, proporcionando uma maneira poderosa de armazenar e manipular coleções de dados. Neste artigo, vamos explorar dezoito métodos fundamentais de arrays que todo programador JavaScript deveria conhecer para escrever código mais eficiente e claro.
## 1. Push
O método `arr.push(..element)` adiciona um novo elemento ao final de um array e retorna o novo comprimento do array. Este método altera o array original.
**Sintaxe:**
```js
arr.push(element1, element2, …)
```
**Exemplo:**
```js
let arr = [1, 2, 3];
arr.push(4); // arr agora é [1, 2, 3, 4]
```
## 2. Pop
O método `arr.pop()` remove o último elemento de um array e retorna o elemento removido. Este método também altera o array original e seu comprimento.
**Sintaxe:**
```js
arr.pop()
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.pop(); // arr agora é [1, 2, 3]
```
## 3. Shift
O método `arr.shift()` remove o primeiro elemento de um array e retorna o elemento removido. Este método também altera o comprimento do array original.
**Sintaxe:**
```js
arr.shift()
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.shift(); // arr agora é [2, 3, 4]
```
## 4. Unshift
O método `arr.unshift(elements)` adiciona um ou mais elementos ao início de um array e retorna o novo comprimento do array.
**Sintaxe:**
```js
arr.unshift(item1, item2, …)
```
**Exemplo:**
```js
let arr = [2, 3, 4];
arr.unshift(1); // arr agora é [1, 2, 3, 4]
```
## 5. Splice
O método `arr.splice()` modifica o array original removendo, substituindo ou adicionando elementos.
**Sintaxe:**
```js
array.splice(start[, deleteCount[, item1[, item2[, ...]]]])
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.splice(1, 1); // arr agora é [1, 3, 4]
```
## 6. Slice
O método `arr.slice()` seleciona uma parte de um array e retorna um novo array com os itens copiados do índice de início até o fim. O array original não é alterado.
**Sintaxe:**
```js
arr.slice(start, end)
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
let newArr = arr.slice(1, 3); // newArr é [2, 3]
```
## 7. Includes
O método `arr.includes(item, index)` verifica se o item está presente no array a partir do índice fornecido e retorna `true` se encontrado, caso contrário, retorna `false`.
**Sintaxe:**
```js
arr.includes(item, index)
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.includes(3); // true
```
## 8. forEach
O método `arr.forEach()` executa uma função fornecida uma vez para cada elemento do array.
**Sintaxe:**
```js
arr.forEach(callback)
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.forEach(num => console.log(num)); // imprime 1, 2, 3, 4
```
## 9. Join
O método `arr.join(separator)` cria uma string com todos os elementos de um array concatenados, separados por um delimitador específico.
**Sintaxe:**
```js
arr.join(separator)
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.join('-'); // "1-2-3-4"
```
## 10. toString
O método `arr.toString()` converte um array em uma string e retorna o resultado.
**Sintaxe:**
```js
arr.toString()
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
arr.toString(); // "1,2,3,4"
```
## 11. Map
O método map() chama uma função callback em cada elemento do array original e retorna um novo array com os resultados. Este é um método não mutante.
**Sintaxe:**
```js
arr.map(function callback(currentValue, index, array) {
// Retorna um novo valor
})
```
**Exemplo:**
```javascript
let arr = [1, 2, 3, 4];
let doubled = arr.map(num => num * 2); // [2, 4, 6, 8]
```
## 12. Reduce
O método reduce() aplica uma função a um acumulador e cada elemento do array (da esquerda para a direita) para reduzir a um único valor.
**Sintaxe:**
```js
arr.reduce(function callback(accumulator, currentValue, index, array) {
// Retorna o valor acumulado
}, initialValue)
```
**Exemplo:**
```js
let arr = [1, 2, 3, 4];
let sum = arr.reduce((acc, num) => acc + num, 0); // 10
```
## 13. Filter
O método filter() cria um novo array com todos os elementos que passaram no teste implementado pela função fornecida.
**Sintaxe:**
```javascript
arr.filter(function callback(element, index, array) {
// Retorna true para manter o elemento
})
```
**Exemplo:**
```javascript
let arr = [1, 2, 3, 4];
let even = arr.filter(num => num % 2 === 0); // [2, 4]
```
## 14. Sort
O método sort() organiza os elementos de um array em ordem crescente ou conforme a função de comparação fornecida.
**Sintaxe:**
```javascript
arr.sort([compareFunction])
```
**Exemplo:**
```javascript
let arr = [4, 2, 3, 1];
arr.sort(); // [1, 2, 3, 4]
```
## 15. Find
O método find() retorna o primeiro elemento no array que satisfaz a função de teste fornecida.
**Sintaxe:**
```javascript
arr.find(function callback(element, index, array) {
// Retorna true para encontrar o elemento
})
```
**Exemplo:**
```javascript
let arr = [1, 2, 3, 4];
let found = arr.find(num => num > 2); // 3
```
## 16. IndexOf
O método indexOf() retorna o primeiro índice no qual um dado elemento pode ser encontrado no array, ou -1 se o elemento não estiver presente.
**Sintaxe:**
```javascript
arr.indexOf(searchElement, fromIndex)
```
**Exemplo:**
```javascript
let arr = [1, 2, 3, 4];
let index = arr.indexOf(3); // 2
```
## 17. Some
O método some() testa se ao menos um elemento no array passa na função de teste implementada.
**Sintaxe:**
```javascript
arr.some(function callback(element, index, array) {
// Retorna true se pelo menos um elemento passar no teste
})
```
**Exemplo:**
```javascript
let arr = [1, 2, 3, 4];
let hasEven = arr.some(num => num % 2 === 0); // true
```
## 18. Concat
O método concat() é usado para mesclar dois ou mais arrays.
**Sintaxe:**
```javascript
arr.concat(array2, array3, ..., arrayN)
```
**Exemplo:**
```javascript
let arr1 = [1, 2];
let arr2 = [3, 4];
let merged = arr1.concat(arr2); // [1, 2, 3, 4]
```
Esses métodos são fundamentais para trabalhar com arrays em JavaScript. Dominar esses métodos permitirá que você manipule dados de forma mais eficiente e escreva códigos mais limpos e legíveis. Feliz codificação!
Referências:
- [10 Important JavaScript Array Methods You Must Know](https://javascript.plainenglish.io/10-important-javascript-array-methods-you-must-know-bd791cbd6e43)
- [Lists of Top 10 JavaScript array methods a beginner Js developer should know](https://medium.com/weekly-webtips/top-10-javascript-array-methods-all-should-know-253721609187)
| josafamarengo |
1,919,028 | AI for System Design and Architecture Documentation | Learn how AI transforms system design and architecture with insights from Multiplayer's CTO. Explore new tools and collaborative features for developers. | 25,852 | 2024-07-10T22:02:59 | https://codingcat.dev/podcast/ai-for-system-design-and-architecture-documentation | webdev, javascript, beginners, podcast |
Original: https://codingcat.dev/podcast/ai-for-system-design-and-architecture-documentation
{% youtube https://youtu.be/BLIPiA6P4kc %}
## Introduction and Welcome
* **Introduction of Guests and Sponsors:** The host welcomes the audience to the Coding Cat.dev podcast, sponsored by Cloudinary and Algolia, and introduces Thomas Johnson, CTO of Multiplayer.
* **Brief Overview of Multiplayer:** Thomas provides a one-minute overview of Multiplayer, explaining that it offers tools for teams working on distributed software to visualize system architecture and manage dependencies collaboratively.
## Early Career and Inspiration in Tech
* **Tom's Introduction to Programming:** Thomas shares how he first got into technology as a child when his father brought home an Apple II Plus. He learned BASIC programming to create simple programs, which ignited his lifelong interest in software development.
* **Academic and Career Journey:** Thomas discusses his educational background, including graduate studies in robotics and AI, and his early professional experiences in speech recognition and distributed systems.
## Pain Points in Early Software Development
* **Challenge of Distributed Systems:** Thomas highlights how early experiences with speech recognition in telecom introduced him to the complexities of distributed systems.
* **Scaling and Technical Debt:** Discussion on how startups often face challenges scaling their products and dealing with technical debt, based on Thomas’s observations from his consulting roles.
## Multiplayer Features and Capabilities
* **Introduction to Multiplayer:** The host and Thomas delve into Multiplayer's features, including system architecture visualization, real-time collaboration, version control, and its upcoming Radar and Pulsar features.
* **Manual Versus Automated Documentation:** Comparison of traditional, manual system documentation methods to Multiplayer’s automated solutions using Radar for detecting system architecture without manual input.
## Practical Demo of Multiplayer
* **Before Multiplayer:** Thomas shows how traditional tools like diagrams.net or swagger fall short in effectively documenting and communicating complex system architectures.
* **Using Multiplayer:** A demonstration of Multiplayer’s capabilities, such as auto layout, real-time collaboration, and connecting to GitHub repositories to pull accurate data. Thomas explains how their future feature, Pulsar, will allow users to build and deploy platforms from templates.
## AI in System Design
* **AI Assistance:** Discussion on how AI can assist in system design within Multiplayer, from automating monotonous tasks to providing debugging aids. The AI will also help users with best practices and potentially generate initial code based on user inputs.
* **Chat-Based Interaction:** The potential for a chat interface to assist developers and even customers in interacting with and modifying system components.
## Potential for Consulting and Partnerships
* **Consulting Opportunities:** Exploration of how Multiplayer could partner with consulting firms to offer system architecture expertise to their clients, providing integrated workspaces within Multiplayer for a seamless project handover.
* **Broader Application:** Emphasis on how the benefits of having a well-documented, collaborative platform can extend beyond initial development to ongoing maintenance and scaling.
## Concluding Thoughts and Future Features
* **Future Development:** Thomas outlines upcoming features for Multiplayer, emphasizing how they aim to make system design easier and more collaborative. This includes enhancing the AI capabilities and deploying complete environments with third-party solutions.
* **Closing Remarks and Picks:** The host wraps up by sharing their recent entertainment picks, and Thomas recommends a book on drawing comics. They conclude by expressing enthusiasm for what Multiplayer is set to achieve. | codercatdev |
1,919,029 | 30 things I wish I could go back and tell my junior engineer self👇 | Consistency is more important than inconsistent hustling Anyone can learn software engineering, keep... | 0 | 2024-07-10T22:03:48 | https://dev.to/msnmongare/30-things-i-wish-i-could-go-back-and-tell-my-junior-engineer-self-5ae | webdev, beginners, programming, tutorial | - Consistency is more important than inconsistent hustling
- Anyone can learn software engineering, keep going
- Join a team where others are growing
- Take on challenging projects that will stretch you
- Freelancing is a business, you have to be good at coding and running a business
- Drive the screen while screen sharing
- Git is a lifesaver, “git” good at it
- Learn how to learn, it will help you grow quicker
- Don’t be afraid to make mistakes, we all do it
- Develop a bias for action, just try things
- There are no stupid questions, ask more questions
- Spend an extra 15-30 mins to understand the larger system when you work on a bug
- Clean coding design patterns really help reduce spaghetti code
- Read one or two books a year to help you grow more depth in your skills
- Take some basic design training, you’ll need it some day
- Build yourself a support system of 2-3 engineers, you’ll need it during hard times
- Find a mentor who really cares about you
- There’s always more work, don’t forget to take breaks and enjoy hobbies
- Imposter syndrome is a sign you are in a season of 🚀 growth
- Work hard and never say that’s not my job
- Develop interpersonal skills and learn how to work well with others on a team
- We are problem solvers first, then coders
- Communication skills are huge, both written and verbal
- Being approachable, reliable, and kind go a long way to building connections and trust
- Learn about the business and customers, it will help you build better products
- Some company cultures are just toxic, it’s ok to leave
- Don’t be afraid to negotiate a salary, recruiters expect you too
- You only need 60% of skills for a job to apply, don’t hold yourself back
- Keep a brag doc for encouragement and resume building
- Your skills are worth a lot, research salaries and make sure you are paid well | msnmongare |
1,919,032 | Casting to the Same-Sized Unsigned Type | Given an integral expression, how to cast it to an unsigned type of the same size. | 0 | 2024-07-10T23:08:33 | https://dev.to/pauljlucas/casting-to-the-same-sized-unsigned-type-1kd3 | c | ---
title: Casting to the Same-Sized Unsigned Type
published: true
description: Given an integral expression, how to cast it to an unsigned type of the same size.
tags: #c
# cover_image: https://direct_url_to_image.jpg
# Use a ratio of 100:42 for best results.
# published_at: 2024-07-10 21:47 +0000
---
## Introduction
In [cdecl](https://github.com/paul-j-lucas/cdecl), there’s this [enumeration](https://dev.to/pauljlucas/enumerations-in-c-ae7):
```c
enum cdecl_show {
CDECL_SHOW_PREDEFINED = 1 << 0,
CDECL_SHOW_USER_DEFINED = 1 << 1,
CDECL_SHOW_OPT_IGNORE_LANG = 1 << 2
};
typedef enum cdecl_show cdecl_show_t;
```
whose values are bit-flags that can be bitwise-or’d together.
> What the flags do isn’t important here, but, briefly, they control which types are shown in response to a cdecl `show` command.
I was working on enhancing the behavior of the `show` command such that if no user-defined type having a specific name was shown, show a predefined type having the same name, if any, via code like:
```c
if ( !showed_any && (show & CDECL_SHOW_USER_DEFINED) != 0 ) {
show &= ~CDECL_SHOW_USER_DEFINED;
show |= CDECL_SHOW_PREDEFINED;
// ...
}
```
That is, turn off the `CDECL_SHOW_USER_DEFINED` bit and turn on the `CDECL_SHOW_PREDEFINED` bit. The problem was, when compiling with the `Wsign-conversion` compiler option, I got:
```
show.c:244:8: warning: implicit conversion changes signedness: 'int' to 'unsigned int' [-Wsign-conversion]
show &= ~CDECL_SHOW_USER_DEFINED;
~~ ^~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
```
This happens because enumeration values in C implicitly convert to their underlying type (here, `int`), but the `~` converts its operand to `unsigned int`.
The obvious way to silence the warning is to cast to `unsigned` first:
```c
show &= ~(unsigned)CDECL_SHOW_USER_DEFINED; // no warning
```
The problem is, in C prior to [C23](https://en.wikipedia.org/wiki/C23_(C_standard_revision)), you can’t be sure what the underlying type of an enumeration is. From the C11 standard §6.7.2.2 ¶4:
> Each enumerated type shall be compatible with `char`, a signed integer type, or an unsigned integer type. The choice of type is implementation-defined.
If you don’t know what the underlying type is, in particular its size, you don’t know that `unsigned int` is the right choice of unsigned type because you want the sizes to match.
Given that `cdecl_show` has only the values 1, 2, and 4, it’s a pretty safe bet that its underlying type is `int` — but you can’t be _sure_. What’s needed is a way to cast to an unsigned type that’s the same size as the type of a given expression.
## The Solution
Using [`_Generic`](https://dev.to/pauljlucas/generic-in-c-i48) and `STATIC_IF` (given in that article), we can implement:
```c
#define TO_UNSIGNED(N) \
STATIC_IF( sizeof(N) == sizeof(char), \
(unsigned char)(N), \
STATIC_IF( sizeof(N) == sizeof(short), \
(unsigned short)(N), \
STATIC_IF( sizeof(N) == sizeof(int), \
(unsigned int)(N), \
STATIC_IF( sizeof(N) == sizeof(long), \
(unsigned long)(N), \
(unsigned long long)(N) ) ) ) )
```
where `N` is any numeric expression of any integral or enumeration type. The implementation is straight-forward: use a chain of `STATIC_IF`s to determine the size of the type of the expression `N`, then cast it to an unsigned type of the same size.
Given that, I can now write:
```c
show &= ~TO_UNSIGNED( CDECL_SHOW_USER_DEFINED );
```
and get no warning.
## Conclusion
Once again, `_Generic` allows you to do some compile-time type introspection. The nice thing about `TO_UNSIGNED()` is that it will always work even if the underlying type changes.
In addition to being useful for enumerations, it’s also useful for `typedef`s of integral types in that you’ll never have to look up what the underlying type of a `typedef` is to know which unsigned type to cast to. | pauljlucas |
1,919,033 | [Game of Purpose] Day 53 | Today I finally made the animation work. It turns out that I had to check the "Use Acceleration for... | 27,434 | 2024-07-10T22:14:17 | https://dev.to/humberd/game-of-purpose-day-53-1j96 | gamedev | Today I finally made the animation work. It turns out that I had to check the "Use Acceleration for Paths" checkbox on a Character Movement component. Reading its description I assume Animation Class assigns proper animation: Stand/Walk/Run depending on how much it accelerates.
Oh, and I constantly revert all the files, because I test stuff and make a mess and want to start again on a clean slate. However, it turned out that I didn't commit yesterday's changes and changes to Manny disappeared :/ Fortunately, I posted a screenshot of my Manny Blueprint under yesterday's post, so I was able to quickly recreate everything. Uff...
{% embed https://youtu.be/gmUaa9r2_Wc %}
| humberd |
1,919,038 | How to Download TikTok Photos Without Watermark: A Detailed Guide with Tikvid.xyz | Discover how to download TikTok photos effortlessly using the TikVid tool and compare it with other popular downloaders. Explore tips for a smooth download experience, legal considerations, and additional tools for enhancing your TikTok content. | 0 | 2024-07-10T22:23:14 | https://dev.to/simply_stanley_/how-to-download-tiktok-photos-without-watermark-a-detailed-guide-with-tikvidxyz-4hif | tiktok, nuxt, socialmedia | ---
title: How to Download TikTok Photos Without Watermark: A Detailed Guide with Tikvid.xyz
published: True
description: Discover how to download TikTok photos effortlessly using the TikVid tool and compare it with other popular downloaders. Explore tips for a smooth download experience, legal considerations, and additional tools for enhancing your TikTok content.
tags: tiktok, Nuxtjs, socialmedia
# cover_image: https://media.dev.to/cdn-cgi/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fkb8xje73plb9fc8inz90.png
# Use a ratio of 100:42 for best results.
# published_at: 2024-07-10 22:12 +0000
---
## Introduction
TikTok has become a powerhouse of creative content, attracting millions of users worldwide. From engaging videos to stunning photo slideshows, the platform offers a plethora of multimedia experiences. However, downloading these photos can sometimes be a challenge. If you’re in a hurry to download TikTok photos, click [here for our TikTok Photos Downloader](https://www.tikvid.xyz/download-tiktok-photo).
This article will walk you through the process of downloading TikTok photos using the TikVid tool and compare it with other popular downloaders. We'll also cover the benefits, tips for a smooth download experience, additional tools for TikTok content, and legal considerations.
## Why Download TikTok Photos?
Downloading TikTok photos can be incredibly useful for a variety of reasons:
- **Offline Viewing:** Enjoy your favorite TikTok photos anytime, even without an internet connection.
- **Sharing:** Easily share downloaded photos with friends and family on other social media platforms or via messaging apps.
- **Archiving Creative Content:** Save unique and inspiring content for future reference or personal inspiration.
## Step-By-Step Guide to Download TikTok Photos
Using the TikVid tool is simple and efficient. Follow these steps:
1. **Open TikTok:** Launch the TikTok app on your phone or access TikTok on your web browser.
2. **Copy the Link:** Navigate to the photo you want to download. Click the "Share" button and select "Copy Link."
3. **Paste the Link:** Go to the TikVid Photo Downloader. Paste the copied link into the designated field.
4. **Download the Photo:** Click the download button. The photo will be processed and ready for download in just a few seconds.
This straightforward method ensures you can quickly save any TikTok photo to your device.
## Comparison of TikTok Photo Downloaders
While TikVid is a robust tool, it's helpful to understand how it stacks up against other popular options:
- **SnapAny**
- *Pros:* Fast, HD quality, supports multiple devices.
- *Cons:* Requires more steps to complete downloads.
- **TTSave**
- *Pros:* No need to install software, works on various devices.
- *Cons:* Limited to slideshow downloads.
- **SnapTik**
- *Pros:* Allows downloading individual photos from slideshows, removes watermarks.
- *Cons:* Interface can be less intuitive for beginners.
- **FavTik**
- *Pros:* High-quality downloads, supports various devices, and fast download speeds.
- *Cons:* Primarily focused on video downloads, with fewer features for photos.
## Tips for a Smooth Download Experience
To ensure a seamless experience while downloading TikTok photos, consider these tips:
- **Stable Internet Connection:** Ensure you have a reliable internet connection to avoid interruptions during the download process.
- **Use a Reliable Web Browser:** Modern browsers like Google Chrome, Mozilla Firefox, or Safari provide better performance and compatibility with most downloaders.
- **Troubleshooting:** If a download fails, try refreshing the page, clearing your browser cache, or restarting your device.
## Additional Tools for TikTok Content
Enhance your TikTok experience with these related tools:
- [**TikTok Video Downloader:**](https://www.tikvid.xyz/) Save videos from TikTok without watermarks.
- [**TikTok Video to MP3 Downloader:**](https://www.tikvid.xyz/download-tiktok-mp3) Extract and download audio tracks from TikTok videos.
- [**Pinterest Video Downloader:**](https://www.tikvid.xyz/pinterest-video-downloader) Download videos from Pinterest effortlessly.
- [**Facebook Video Downloader:**](https://www.tikvid.xyz/facebook-video-downloader) Save Facebook videos for offline viewing.
## Legal Considerations
When downloading content from TikTok, it's important to be aware of the legal implications:
- **Respect Content Creators:** Always credit the original creators if you plan to share downloaded content publicly.
- **Personal Use:** Ensure that downloaded content is used for personal purposes and not for commercial gain unless you have explicit permission from the creator.
- **Copyright Laws:** Adhere to local copyright laws and TikTok’s terms of service to avoid legal issues.
## Conclusion
Downloading TikTok photos can greatly enhance your social media experience by allowing you to keep, share, and enjoy creative content offline. With tools like the TikVid Photo Downloader, the process is quick and easy. Don't forget to explore other tools like the TikTok Video Downloader and the TikTok Video to MP3 Downloader to make the most out of your TikTok usage.
By following the steps and tips provided in this guide, you can confidently download and enjoy TikTok photos whenever you like. Happy downloading! | simply_stanley_ |
1,919,039 | Elevate Your Mobility: The Ultimate Guide to the Best 4 Wheel Mobility Scooters for Adults in 2024 | In the dynamic landscape of mobility aids, 2024 marks a remarkable leap forward in innovation and... | 0 | 2024-07-10T22:23:23 | https://dev.to/elon01/elevate-your-mobility-the-ultimate-guide-to-the-best-4-wheel-mobility-scooters-for-adults-in-2024-2a4b | In the dynamic landscape of mobility aids, 2024 marks a remarkable leap forward in innovation and technology, shaping the lives of seniors, the elderly, and individuals with mobility challenges. Discovering the perfect **[4 wheel scooter for adults](https://www.topmedicalmobility.com/product-category/4-wheel-scooter-for-adults/)** isn't just about convenience—it's about enhancing quality of life. Let's delve into the top options available, highlighting their cutting-edge features, benefits, and why investing in one is a game-changer.
## Unleashing the Power of 4 Wheel Mobility Scooters
## Why 4 Wheel Mobility Scooters Are Essential
At the core of mobility scooters lies a profound impact beyond mere transportation:
**Stability and Safety**: Enhanced balance and stability for users, particularly those with limited mobility.
**Enhanced Comfort**: Ergonomic seating and advanced suspension systems ensure a comfortable ride even on longer journeys.
**Versatility**: From indoor spaces to rugged terrains, these scooters adapt effortlessly to diverse environments.
**Convenience and Portability**: Modern designs with folding capabilities make storage and transportation hassle-free.
## Top Innovations in 2024
2024 heralds a new era of innovations revolutionizing the mobility scooter landscape:
**Improved Battery Life**: Extended range for uninterrupted travel experiences.
**Advanced Suspension Systems**: Smoother rides, shielding users from rough surfaces.
**Smart Features**: GPS tracking, mobile app integration, and safety alerts for a connected experience.
**Lightweight Materials**: Portability without compromising strength or stability.
## Unveiling the Finest 4 Wheel Mobility Scooters
## E Wheels EW-26 Folding Mobility Scooter
**Best For**: Portability and Reliability
**Key Features**: Powerful motor, long-lasting battery for daily use
## Merits Roadster 4 Scooter
**Best For**: Sturdy Build and Stability
**Key Features**: Indoor and outdoor usage, comfort in various environments
## FreeRider ASCOT 4 Mobility Scooter
**Best For**: Advanced Suspension System and Comfort
**Key Features**: Smooth ride, ergonomic design for optimal comfort
## Vive Health 4 Wheel Mobility Scooter
**Best For**: User-Friendly Controls and Compact Design
**Key Features**: Reliable and easy-to-use mobility solution
## EV Rider TeQno Mobility Scooter
**Best For**: Smart Features and Connectivity
**Key Features**: Advanced safety sensors, mobile app compatibility for tech enthusiasts
## E Wheels EW-22 Mobility 4 Wheel Scooter
**Best For**: Robust Performance and Versatility
**Key Features**: Suitable for various terrains, ideal for adventurous users
## EW-M34 E Wheels Electric Scooter 4
**Best For**: Power and Portability
**Key Features**: Lightweight, high performance for easy transportation
## Embrace Independence and Freedom with a 4 Wheel Mobility Scooter
**Independence and Freedom**: Enhance overall quality of life with free movement and autonomy.
**Convenience**: User-friendly controls, foldable designs, and enduring batteries for hassle-free experiences.
**Improved Quality of Life**: Participate in social activities, errands, and outdoor ventures with ease.
**Safety and Security**: Advanced safety features and stable designs for peace of mind.
## Who Benefits from a 4 Wheel Mobility Scooter?
**Elderly and Seniors**: Stability and support for an active lifestyle.
**Mobility Patients**: Convenience and independence for enhanced mobility.
**Home Care Providers**: Invaluable tools for assisting patients in maintaining independence.
## Choose Top Medical Mobility for Unmatched Excellence
As an authorized dealer of top-quality mobility scooter brands, Top Medical Mobility offers expert advice, discounts, and rewards programs to ensure customers receive premier products and services.
## Conclusion: Elevate Your Mobility with Top Medical Mobility
Investing in a 4 wheel scooter for adults is a transformative step towards enhancing mobility and independence. As we embrace the innovations of 2024, there's never been a better time to explore the plethora of options available. Whether you seek stability, comfort, or cutting-edge features, the perfect scooter awaits. Visit Top Medical Mobility to discover your ideal mobility solution today. | elon01 | |
1,919,040 | How can we create Instant Background with 1 click Photoroom | In today’s digital age, creating captivating and professional-looking photos is more important than... | 0 | 2024-07-10T22:25:32 | https://dev.to/alexbhatti/how-can-we-create-instant-background-with-1-click-photoroom-30p4 | In today’s digital age, creating captivating and professional-looking photos is more important than ever. Whether you are a business owner, a social media influencer, or simply someone who loves taking photos, having a powerful photo editing tool is essential. One such tool that stands out from the rest is Photoroom Photo Editor. It has quickly become a favorite for many due to its exceptional background editing capabilities. In this article, we will explore why [photoroom pro mod apk no watermark](https://photoroomaiapk.pro/) is considered the best background editor.
#### User-Friendly Interface
One of the most notable features of Photoroom Photo Editor is its user-friendly interface. Even if you are not tech-savvy, you can easily navigate through the app and start editing your photos in no time. The design is clean and intuitive, making it simple to understand and use. This accessibility ensures that everyone, regardless of their experience with photo editing, can create stunning images.
#### Automatic Background Removal
Photoroom’s automatic background removal tool is a game-changer. With just one click, the app can instantly remove the background from any photo. This feature is powered by advanced artificial intelligence, which accurately detects the subject of the photo and separates it from the background. This saves you a lot of time and effort, as you no longer need to manually erase the background pixel by pixel.
#### High-Quality Backgrounds
Once the background is removed, you can replace it with a new one from Photoroom’s extensive library of high-quality backgrounds. Whether you need a simple white background for product photos or a vibrant scenery for a social media post, Photoroom has got you covered. The app offers a wide variety of backgrounds to choose from, ensuring that you can find the perfect one to complement your subject.
#### Custom Backgrounds
In addition to the pre-made backgrounds, Photoroom allows you to upload your own custom backgrounds. This feature is particularly useful for businesses that want to maintain a consistent brand image. By using your own backgrounds, you can ensure that all your photos align with your brand’s aesthetics and messaging.
#### Editing Tools
Photoroom is not just a background editor; it is a comprehensive photo editing tool. The app offers a range of editing tools that allow you to enhance your photos even further. You can adjust the brightness, contrast, and saturation, add filters and effects, and crop and resize your images. These tools are easy to use and help you achieve a polished and professional look.
#### Batch Editing
If you have multiple photos to edit, Photoroom’s batch editing feature will come in handy. This feature allows you to edit several photos at once, saving you time and effort. You can apply the same background and editing settings to all your photos in one go, ensuring consistency across your entire photo collection.
#### Versatility
Photoroom is versatile and can be used for a variety of purposes. It is an excellent tool for product photography, helping businesses create professional-looking product images for their online stores. It is also perfect for social media influencers who want to create eye-catching posts and stories. Additionally, Photoroom is great for personal use, allowing you to enhance your family photos, travel pictures, and more.
#### Affordable Pricing
Despite its powerful features, Photoroom is surprisingly affordable. The app offers a free version with basic features, which is perfect for casual users. For those who need more advanced tools and capabilities, Photoroom offers a premium subscription at a reasonable price. This makes it accessible to everyone, regardless of their budget.
#### Regular Updates
Photoroom is constantly evolving and improving. The developers regularly release updates that introduce new features and enhancements. This commitment to continuous improvement ensures that users always have access to the latest and best tools for photo editing.
#### Positive Reviews
Photoroom has received numerous positive reviews from users all around the world. Many people praise the app for its ease of use, powerful features, and exceptional customer support. The positive feedback from users is a testament to Photoroom’s quality and reliability.
#### Customer Support
Photoroom offers excellent customer support to help you with any issues or questions you may have. Whether you need assistance with using the app or have a technical problem, the Photoroom support team is always ready to help. This ensures that you have a smooth and enjoyable experience while using the app.
#### Conclusion
In conclusion, Photoroom Photo Editor is the best background editor available today. Its user-friendly interface, automatic background removal, high-quality backgrounds, and comprehensive editing tools make it an indispensable tool for anyone who wants to create stunning photos even you can also [download Photoroom apk older version](https://photoroomaiapk.pro/download-photoroom-mod-apk-old-versions/). Whether you are a business owner, a social media influencer, or simply someone who loves taking photos, Photoroom has everything you need to enhance your images and make them stand out. With its affordable pricing, regular updates, and excellent customer support, Photoroom is a must-have app for all your photo editing needs. Give it a try and see the difference it can make to your photos. | alexbhatti | |
1,919,042 | Discover How to Fix Your Sleep for Better Health and Well-being | Sleep is a crucial component of our overall health and well-being. Without quality rest, we can... | 0 | 2024-07-10T22:38:40 | https://dev.to/ericryan3132/discover-how-to-fix-your-sleep-for-better-health-and-well-being-l5g | Sleep is a crucial component of our overall health and well-being. Without quality rest, we can experience a range of negative effects, from impaired cognitive function to weakened immune systems. If you're struggling to get a good night's sleep, it might be time to take action and [fix your sleep](https://sleepingquickfix.com/). By addressing common sleep issues, you can improve your rest and enjoy the benefits of waking up refreshed and energized. For more tips and solutions, visit sleepingquickfix.
One of the most common sleep issues is difficulty falling asleep. This can be caused by a variety of factors, including stress, an irregular sleep schedule, and poor sleep hygiene. To fix your sleep, start by establishing a consistent bedtime routine. Going to bed and waking up at the same time every day, even on weekends, helps regulate your body's internal clock. Additionally, creating a calming pre-sleep ritual, such as reading a book or taking a warm bath, can signal to your body that it's time to wind down.
Another important aspect to consider when you want to fix your sleep is your sleep environment. Ensure that your bedroom is conducive to rest by keeping it cool, dark, and quiet. Invest in a comfortable mattress and pillows, and consider using blackout curtains or a white noise machine if external light and noise are issues. Decluttering your sleep space can also have a calming effect, making it easier for you to relax and fall asleep.
Diet and exercise play significant roles in your ability to fix your sleep. Avoid large meals, caffeine, and alcohol close to bedtime, as these can interfere with your ability to fall and stay asleep. Instead, opt for a light snack if you're hungry before bed. Regular physical activity can also promote better sleep, but try to finish exercising at least a few hours before bedtime to prevent it from affecting your sleep.
Mental health is closely linked to sleep quality. Anxiety, depression, and other mental health conditions can make it challenging to fix your sleep. Practicing relaxation techniques such as meditation, deep breathing exercises, or yoga can help calm your mind and prepare you for rest. If you're struggling with persistent sleep issues, it may be beneficial to seek support from a mental health professional who can provide additional strategies and interventions.
By taking these steps to fix your sleep, you can enhance your overall quality of life. Improved sleep leads to better mood, increased productivity, and a stronger immune system. Don't let sleep problems hold you back any longer. For more comprehensive advice and solutions, be sure to visit sleepingquickfix. Taking control of your sleep health is a powerful way to invest in your long-term well-being.
| ericryan3132 | |
1,919,043 | The discord bot works! | This discord bot monitors your DEV.to account and lets people know when you’ve posted in your Discord... | 0 | 2024-07-10T22:39:15 | https://dev.to/aud/the-discord-bot-works-3ide | This discord bot monitors your DEV.to account and lets people know when you’ve posted in your Discord server!
You can invite it [here!](https://discord.com/oauth2/authorize?client_id=1260712345106382880)
Use /setwatch <channel> <username> to update your server members when there’s a new post! | aud | |
1,919,044 | Foremost ที่ไม่ใช่ นม | ในการทำงานทางด้าน Computer Forensics นั้น มีเครื่องมือด้วยกันหลายตัว หนึ่งในนั้น คือ Foremost... | 0 | 2024-07-10T22:39:24 | https://dev.to/iyosnu/foremost-thiiaimaich-nm-217d | security, forensic, datacarving, foremost | ในการทำงานทางด้าน Computer Forensics นั้น มีเครื่องมือด้วยกันหลายตัว หนึ่งในนั้น คือ Foremost ซึ่งจัดได้ว่าเป็น tool ที่ ใช้ง่าย และใช้กันอย่างแพร่หลาย ดังนั้น จึงนำเครื่องมือตัวนี้มาแนะนำให้รู้จัก และ อธิบายถึงการใช้งาน เพื่อให้ได้รู้จักเครื่องมือที่มีประโยชน์ และ ยังไม่เสียค่าใช้จ่ายอีกด้วย
Foremost เป็นเครื่องมือตัวหนึ่งที่ใช้สำหรับงานทางด้าน Computer Forensics ถูกพัฒนาขึ้นโดยหน่วยงาน Air Force Office of Special Investigations และ The Center for Information Systems Security Studies and Research ของอเมริกา ในปัจจุบัน Foremost ได้ถูกเผยแพร่ให้บุคคลทั่วไปได้นำไปใช้งาน ถึงแม้ในขั้นต้น จะถูกพัฒนาขึ้น เพื่อให้ใช้สำหรับหน่วยงานบังคับใช้กฎหมายเป็นหลักก็ตาม แต่ด้วยประโยชน์หลากหลาย จึงถูกนำไปใช้ในด้านอื่นๆ ด้วย เช่น ใช้อ่านข้อมูลภายในไฟล์ที่ได้มาจากการทำ image เช่น โปรแกรม dd, Safeback, EnCase เป็นต้น หรือ ทำการ dump ข้อมูลจาก Memory หรือ Swap files แล้วแสดงข้อมูลที่อ่านได้
Foremost เป็นโปรแกรมที่ทำงานแบบ command line ถูกพัฒนาขึ้นเพื่อใช้บน แพลตฟอร์ม Linux หรือเราจะติดตั้ง Cygwin เพื่อให้สามารถใช้งานบน Windows ก็ได้ สำหรับ Foremost นั้น ถูกนำมาใช้ในการกู้ไฟล์คืนกลับมา โดยดูจากลักษณะ Headers, Footers และ โครงสร้างภายในของไฟล์ประเภทนั้นๆ (Internal data structures) ซึ่งเราอาจเรียกการกู้ข้อมูลในลักษณะนี้ได้ว่า เป็นการทำ Data Carving ประเภทหนึ่ง (เนื่องจากในการทำ Data Carving นั้นจะสามารถแบ่งออกได้หลายวิธีแล้วแต่รูปแบบ เช่น Header/Footer Carving, File structure based Carving เป็นต้น) การค้นหาข้อมูลลักษณะนี้ จะช่วยในการระบุไฟล์ที่ต้องการค้นหา และประกอบขึ้นมาใหม่ จากพื้นที่ที่มีปัญหา ของ File systems เช่น slack space หรือ ภายหลังจากทำการติดตั้งระบบปฏิบัติลงไปใหม่ไปแล้วก็ตาม ซึ่งการกู้ข้อมูลในลักษณะนี้มีเงื่อนไขว่า ไฟล์หรือข้อมูลที่ต้องการนี้ ยังไม่ถูกเขียนทับ สำหรับการระบุประเภทของไฟล์ที่ต้องการค้นหานั้น จะทำโดย matching header ของไฟล์ประเภทนั้นๆ ซึ่งลักษณะ header ของไฟล์ต่างๆ จะถูกจัดเก็บอยู่ใน ไฟล์ configuration ของ Foremost เอง | iyosnu |
1,919,045 | Awesome ("must have" links to recourses ) | Awesome Lists on GitHub are curated lists of resources and tools related to a specific topic or area.... | 0 | 2024-07-10T22:44:50 | https://dev.to/mibii/awesome-must-have-links-to-recourses--1o6o | musthave | Awesome Lists on GitHub are curated lists of resources and tools related to a specific topic or area. They are created and maintained by the GitHub community and often serve as a comprehensive and well-organized collection of useful resources for developers, data scientists, system administrators, etc. Awesome lists cover a wide range of topics, from specific programming languages and frameworks to broader topics such as machine learning, security and QA. They are a great starting point for anyone who wants to learn more about a specific topic or find the best tools and resources for their work.
[👩💻 JavaScript: awesome-javascript](https://github.com/sorrycc/awesome-javascript)
[👩💻 React: awesome-react](https://github.com/enaqx/awesome-react)
[👩💻 Vue: awesome-vue](https://github.com/vuejs/awesome-vue)
[👩💻 Angular: awesome-angular ](https://github.com/PatrickJS/awesome-angular)
[👩💻 Node.js: awesome-nodejs]
(https://github.com/sindresorhus/awesome-nodejs)
[👩💻 Typescript: awesome-typescript]
(https://github.com/dzharii/awesome-typescript)
[👩💻 Java: awesome-java]
(https://github.com/akullpp/awesome-java)
[👩💻 Go: awesome-go]
(https://github.com/avelino/awesome-go)
[👩💻 Ruby: awesome-ruby]
(https://github.com/markets/awesome-ruby)
[👩💻 PHP: awesome-php]
(https://github.com/ziadoz/awesome-php)
[👩💻 Kotlin: awesome-kotlin]
(https://github.com/KotlinBy/awesome-kotlin)
[👩💻 Rust: awesome-rust]
(https://github.com/rust-unofficial/awesome-rust)
[👩💻 Swift: awesome-swift]
(https://github.com/Wolg/awesome-swift)
[🍎 iOS-разработка: awesome-ios]
(https://github.com/vsouza/awesome-ios)
[👩💻 Android-разработка: awesome-android]
(https://github.com/JStumpp/awesome-android)
[👩💻 C: awesome-c]
(https://github.com/oz123/awesome-c)
[👩💻 C++: awesome-cpp]
(https://github.com/fffaraz/awesome-cpp)
[👩💻 C#: awesome-dotnet]
(https://github.com/quozd/awesome-dotnet)
[👩💻 Unreal Engine: awesome-unreal]
(https://github.com/insthync/awesome-unreal)
[👩💻 Unity: awesome-unity3d]
(https://github.com/insthync/awesome-unity3d)
[👩💻 Python: awesome-python]
(https://github.com/vinta/awesome-python)
[👩💻 Django: awesome-django]
(https://github.com/wsvincent/awesome-django)
[Data Science: awesome-datascience]
(https://github.com/bulutyazilim/awesome-datascience)
[👩💻 TensorFlow: awesome-tensorflow]
(https://github.com/jtoy/awesome-tensorflow)
[👩💻 Linux: Awesome-Linux-Software]
(https://github.com/luong-komorebi/Awesome-Linux-Software)👩💻 [DevOps: awesome-devops]
(https://github.com/awesome-soft/awesome-devops)
[👩💻 SysAdmins: awesome-sysadmin]
(https://github.com/awesome-foss/awesome-sysadmin)
[👩💻 Nginx: awesome-nginx]
(https://github.com/agile6v/awesome-nginx)
[👩💻 Kubernetes: awesome-kubernetes]
(https://github.com/ramitsurana/awesome-kubernetes)
[🐋 Docker: awesome-docker]
(https://github.com/veggiemonk/awesome-docker)
[👩💻 AWS: awesome-aws]
(https://github.com/donnemartin/awesome-aws)
[👩💻 Google cloud: awesome-google-cloud]
(https://github.com/GoogleCloudPlatform/awesome-google-cloud)
[🌐awesome-selfhosted] (https://github.com/awesome-selfhosted/awesome-selfhosted)
[awesome-networking]
(https://github.com/facyber/awesome-networking)
[awesome-network-automation]
(https://github.com/networktocode/awesome-network-automation)🕵️ [awesome-security]
(https://github.com/sbilly/awesome-security)
[🧪 QA: awesome-testing] (https://github.com/TheJambo/awesome-testing)
[👩💻 awesome-database-learning]
(https://github.com/pingcap/awesome-database-learning)
| mibii |
1,919,046 | Day 988 : So Good | liner notes: Professional : Got up super early to sit in on a talk prep session. Then I went back... | 0 | 2024-07-10T22:47:09 | https://dev.to/dwane/day-988-so-good-3jdi | hiphop, code, coding, lifelongdev | _liner notes_:
- Professional : Got up super early to sit in on a talk prep session. Then I went back to sleep. Woke up a couple of hours later and got to work. Responded to some community questions. Worked on the refactor of a project. Sat in another talk prep session. After that, I had another meeting. For the rest of the day I added some functionalities, removed some functionalities, and refactored some UI.
- Personal : Last night, I went through some tracks for the radio show. Looked into some technology for a feature of my application. Ended the night watching the season finale of "Demon Slayer". Sooooo goooood!
So, I watched the Samsung event and the items I was looking forward to hearing more about checked my boxes. To make sure, I watched a couple of initial impressions from reviewers that actually held the devices. I placed a pre-order. I'll basically be eating beans for the rest of the year. haha To add insult to injury, I think I may also pick up the travel backpack since it was on sale and I got a coupon to get a free item and another discount applied. Going to go through tracks for the radio show. I want to see if I can spin up a proof of concept for the feature of my application and test it out.
Have a great night!
peace piece
Dwane / conshus
https://dwane.io / https://HIPHOPandCODE.com
{% youtube b-xY0hoRzgY %} | dwane |
1,919,047 | useFormState（useActionState） | I introduce "useFormState" which is new hook in React19. Now this hook is called "useActionState" as... | 0 | 2024-07-11T12:19:01 | https://dev.to/makoto0825/useformstateuseactionstate-642 | webdev, react, nextjs | I introduce "useFormState" which is new hook in React19. Now this hook is called "useActionState" as another name.
**Note**: The official React reference says that "useFormState" will change to "useActionState". It is expected that useFormState will no longer be available in the near future.
## What is "useFormState"?
"useFormState" that allows the state to be updated based on the result of a function (form action). [Please refer to this article for information about form actions](https://dev.to/makoto0825/form-actions-in-react-19-3ghd).
## How to use it.
```react
const [state, dispatch] = useFormState(putcart, null);
```
useFormState can be used like useState.
- The first element of the array is the state variable. The second element is a function for updating the state. At this time, the variable name needs to match the one specified in the Action attribute.
- The first argument of useFormState is a function for performing updates. The second argument is the initial value of the state. In this case, null is passed as the initial value.
## Example
The following example shows that by using useFormState, the state is being updated with a function called putcart.
**FormComp.tsx**
```react
"use client";
import React from "react";
// import { useActionState } from "react";
import { useFormState } from "react-dom";
import { putcart } from "./functions";
const FormCop = () => {
const [state, dispatch] = useFormState(putcart, null);
return (
<form
className="bg-white w-1/3 text-center m-auto mt-20 p-5"
action={dispatch}
>
<h1 className="font-bold">Shopping cart</h1>
<input type="hidden" name="itemID" value={"1"} />
<button className="bg-teal-400 w-3/4 p-2 text-white m-5" type="submit">
ADD TO CART
</button>
{state && <p className="text-green-500">{state}</p>}
</form>
);
};
export default FormCop;
```
**functions.ts**
```react
"use server";
export const putcart = async (prev: string | null, formDate: FormData) => {
await new Promise((resolve) => setTimeout(resolve, 1000));
console.log("this comment is put debug console because in serverside");
const itemID = formDate.get("itemID");
if (itemID === "1") {
return "you have added item to cart";
}
return prev;
};
```
When the button is clicked, putcart is called by useFormState. At this time, the information from the form is passed as an argument to putcart. In this case, since the input value is 1, the string "you have added item to cart" is returned, and the state is updated with this value. Then, due to the condition state &&, the text "you have added item to cart" is displayed on the screen.
**(Result)**
| makoto0825 |
1,919,180 | The 7 Best Canned Ham of 2024 | Is canned ham good for you? Canned ham can be a convenient and long-lasting food option, but whether... | 0 | 2024-07-11T03:09:24 | https://dev.to/chien_bui_8ed10263e2f8ebb/the-7-best-canned-ham-of-2024-b5p | Is canned ham good for you?
Canned ham can be a convenient and long-lasting food option, but whether it is good for you depends on several factors, including its nutritional content, ingredients, and how it fits into your overall diet. Here are some points to consider:
Nutritional Content
Protein: Canned ham is a good source of protein, which is essential for muscle repair and growth.
Fat: It often contains a significant amount of fat, including saturated fat, which can be concerning if consumed in large amounts.
Sodium: One of the major drawbacks of canned ham is its high sodium content. High sodium intake is linked to increased blood pressure and a higher risk of heart disease.
Preservatives: Canned ham usually contains preservatives like sodium nitrite, which have been associated with certain health risks when consumed in large quantities.
* [What are the best Amazon shopping?](https://www.theprimrose.net/)
Ingredients
Quality of Meat: The quality of the meat used in canned ham can vary. Some products may include fillers, while others use higher-quality cuts.
Additives: Many canned hams contain added sugars, artificial flavors, and other additives that may not be ideal for a healthy diet.
Overall Diet
Balanced Diet: If consumed occasionally as part of a balanced diet rich in fruits, vegetables, whole grains, and lean proteins, canned ham can be a reasonable choice.
Moderation: Due to its high sodium and fat content, it is best to consume canned ham in moderation.
Health Considerations
Heart Health: Individuals with hypertension or heart disease should be particularly cautious about the sodium content.
Weight Management: The calorie and fat content should be considered if you are trying to manage your weight.
Alternatives
Fresh Ham: Fresh or minimally processed ham can be a healthier alternative, offering similar protein benefits without as many preservatives and potentially lower sodium.
Other Protein Sources: Lean meats, poultry, fish, beans, and legumes can provide healthier protein options with lower sodium and fat.
In summary, while canned ham can be part of a healthy diet if consumed occasionally and in moderation, it is important to be mindful of its high sodium and fat content and to consider alternative protein sources for a more balanced diet.
• [What are the benefits of taking evening primrose oil?](https://www.theprimrose.net/home/buying-guides/evening-primrose-oil)
| chien_bui_8ed10263e2f8ebb |
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