teleren/devto huggingface dataset:
How to provide meaningful error messages in your API response
Tags: javascript, beginners, learning, api
Published: 2023-10-31 15:26:52

Let's learn how to provide meaniful error messages through examples.

## Clear and concise messages

Make sure the message is clear and easy to understand for the end user.

```js
{
  "error": "Invalid input: Missing required parameter 'email'."
}
```

## Include error codes

Include error codes in the response to help developers debug the issue.

```js
{
  "error": {
    "code": 400,
    "message": "Bad Request: Invalid input data."
  }
}
```

## Provide suggestion to fix the issue

Sometimes the error message is not enough to fix the issue. In that case, provide a suggestion to help the user fix the issue.

```js
{
  "error": {
    "code": 404,
    "message": "Not Found: The requested resource does not exist. Please check the URL and try again."
  }
}
```

## Make sure to not leak internal errors

Do not leak internal errors to the end user. Instead, log the error and provide a generic error message.

```js
{
  "error": {
    "code": 500,
    "message": "Internal Server Error: Something went wrong. Please try again later."
  }
}
```

## Localization

It is optional and only valid if your API supports multiple languages.

```js
{
  "error": {
    "code": 401,
    "message": {
      "en": "Unauthorized: Please log in to access this resource.",
      "es": "No autorizado: Por favor, inicie sesión para acceder a este recurso."
    }
  }
}
```

Hope this helps you to learn some techniques to provide meaningful error messages in your API response to help developers and users 🚀
Hacktoberfest Maintainer
Tags: hack23maintainer
Published: 2023-10-31 15:16:10

### Intro
I am already participating in Hacktoberfest since 2020.
So it's my third time, but first time as an maintainer.


### Highs and Lows
The Highs were definitive the good vibes among the participants.
Honestly I did not received any crap contributions to my repo.
It was very pleasant.

### Growth
I improved also in working crossteam on cool new ideas!
Hacktoberfest Contributor
Tags: hack23contributor
Published: 2023-10-31 15:14:28

### Intro
I am already participating in Hacktoberfest since 2020.
So it's my third time, but first time as an maintainer.

### Highs and Lows
The Highs were definitive the good vibes among the participants.

### Growth
I improved also in working crossteam on cool new ideas!
Recommendation Systems with Graph Databases: Apache AGE
Tags: postgres, apacheage
Published: 2023-10-31 15:04:51

##Introduction
In today's data-driven world, personalized recommendations have become a cornerstone of user experience across various platforms. From e-commerce to social media, recommendation systems play a crucial role in enhancing user engagement and satisfaction. Leveraging the power of Apache AGE, a dynamic PostgreSQL extension with graph database capabilities, recommendation systems are taken to new heights. With the support of Open Cypher for queries, Apache AGE empowers businesses to create highly effective and tailored recommendation engines.

##Why Choose Graph Databases for Recommendation Systems?

Traditional databases face challenges when it comes to representing and querying complex relationships, a key aspect of building recommendation systems. Graph databases, on the other hand, excel in precisely this arena. Their ability to efficiently handle intricate connections between entities makes them an ideal fit for modeling and generating personalized recommendations.

##Key Benefits of Using Apache AGE for Recommendation Systems
    
1. Efficient Representation of User-Item Interactions: Apache AGE's graph database capabilities provide a natural way to represent user interactions with items. Users and items become nodes, and interactions form the edges, making it easy to track preferences and behaviors.

2. Real-time Personalization: Graph databases like Apache AGE are optimized for real-time querying. This means recommendation engines can deliver personalized suggestions instantly, enhancing user engagement.

3. Complex Relationship Analysis: Apache AGE enables the exploration of complex relationships between users, items, and their interactions. This allows for a deeper understanding of user preferences and behavior patterns.

4. Scalability for Growing User Bases: Apache AGE is designed to handle large-scale recommendation systems, ensuring optimal performance as the user base expands.

5. Integration with Machine Learning: Apache AGE can be seamlessly integrated with machine learning algorithms to enhance recommendation quality and adapt to changing user preferences.

Graph databases, in conjunction with Apache AGE, open up a world of possibilities for building highly effective recommendation systems. By efficiently modeling and analyzing user-item interactions, businesses can offer personalized experiences that drive user engagement and satisfaction.

More about Apache AGE here:

GitHub: https://github.com/apache/age
Website: https://age.apache.org/
Placeholder Contributor
Tags: hack23contributor
Published: 2023-10-31 14:56:12

<!-- ✨This template is only meant to get your ideas going, so please feel free to write your own title, structure, and words! ✨ -->

### Intro
<!-- Share a bit about yourself as a contributor. Is this your first Hacktoberfest, or have you contributed to others? Feel free to embed your GitHub account by using {% embed LINK %} -->

### Highs and Lows
<!-- What were some of your biggest accomplishments or light-bulb moments this month? Did any problems come up that seemed impossible to fix? How did you adapt in those cases?  -->

### Growth
<!-- What was your skillset before Hacktoberfest 2023 and how did it improve? Have your learning or career goals changed since working on these new projects? -->
Graph Databases for IoT: Managing Complex Relationships
Tags: apacheage, postgres
Published: 2023-10-31 14:51:57

##Introduction
The Internet of Things (IoT) has ushered in an era of interconnected devices, generating a staggering volume of data. Effectively managing the complex web of relationships between these devices is paramount. Enter graph databases, a powerful solution tailored for precisely this purpose. With the support of Apache AGE, a PostgreSQL extension that imbues PostgreSQL with graph database capabilities, managing IoT relationships becomes seamless and efficient.

##Key Advantages of Using Apache AGE for IoT Relationship Management

1. Efficient Representation of Device Relationships: Apache AGE's graph database capabilities allow for the natural representation of IoT networks, where devices and sensors are nodes, and their connections form the edges.

2. Scalability for Large-scale IoT Deployments: Apache AGE is engineered to handle large-scale IoT networks with millions of nodes and edges, ensuring optimal performance as your IoT deployment grows.

3. Real-time Querying for Instant Insights: Graph databases excel at real-time querying, making them invaluable for IoT applications that require immediate response times, such as monitoring critical systems.

4. IoT Device Lifecycle Management: Apache AGE enables the tracking of device lifecycles, from provisioning to decommissioning, ensuring optimal utilization and security.

5. IoT Network Optimization: By modeling IoT networks as graphs, you can optimize communication routes, detect network bottlenecks, and enhance overall network efficiency.

Graph databases are key to managing IoT relationships well. Apache AGE turns PostgreSQL into a strong graph database, ready to handle the challenges of IoT network management.

More about Apache AGE here:

GitHub: https://github.com/apache/age
Website: https://age.apache.org/
Navigating the JS TS Limbo
Tags: javascript, ts, javascrpt, typescript
Published: 2023-10-31 14:36:50


---
title: Navigating the JS TS Limbo
published: true
description: 
tags: #js #ts #javascrpt #typescript
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hxj1so9yqmqa7yl5pfpn.png

# Use a ratio of 100:42 for best results.
# published_at: 2023-10-27 06:46 +0000
---

When working with a valuable JavaScript library, transitioning it entirely to TypeScript might not be optimal solution. However, what if you could embrace the best of both worlds?

In this post, we look into a middle-ground solution that seamlessly combines JavaScript and TypeScript, offering the advantages of both while mitigating the need for maintaining separate code-bases.

By incorporating TypeScript declaration files (.d.ts) alongside your JavaScript library, you can ensure the transparency of your code-base. This empowers developers to seamlessly switch between JavaScript and TypeScript projects without losing touch with the core logic.

Take, for example, an Entity-Component System (ECS) within library. In TypeScript, you might have used the following code to retrieve components of the right type:
```typescript
var components = entityManager.get(MyComponent, entity)
                     as MyComponent[]
```
With the added .d.ts file:
```typescript
declare class EntityManager {
    create(): Entity;
    assign(component: any, e: Entity): void;
    get<T>(c_type: new (...args: any) => T, e: Entity): T[];
    getEntities(c_type: any): Entity[];
}
```
Now, in TypeScript, you can enjoy a cleaner, more type-safe approach, without end programmer assuming type:
```typescript
var components = entityManager.get(MyComponent, entity)
```

This approach ensures that your library remains accessible to both JavaScript and TypeScript projects. It can be a lifesaver when dealing with legacy systems or when the simplicity of JavaScript is the more fitting choice.

Furthermore, this method avoids managing two distinct versions of your library for JavaScript and TypeScript. Changes and bug fixes need only be applied once in the core code, significantly saving time and effort.

However, one minor inconvenience is that when exploring your library in a TypeScript project, clicking on a function may direct you to the declaration file (.d.ts) instead of the actual source code, potentially hindering developers seeking in-depth insights.

It's worth noting that the usage of JavaScript and TypeScript in a single project could potentially bug developers who are not accustomed to this particular setup.

In conclusion, the decision to employ JavaScript and TypeScript in tandem with declaration files is a pragmatic approach, offering the advantages of both worlds. This middle-ground strategy ensures that library remains a valuable asset in the diverse landscape of software development.

Links:
[d.ts]
(https://github.com/slobacartoonac/js_lib/blob/main/ecs/ecs.d.ts)
[lib](https://github.com/slobacartoonac/js_lib/blob/main/ecs/ecs.js)
[tests]
(https://github.com/slobacartoonac/js_lib/blob/main/test/ecs_test.js)
Hello Everyone 👋
Tags: blockchain, solidity, aws, webdev
Published: 2023-10-31 14:35:08

Hey Devs 👋

I'm Abdul, and I'm passionate about blockchain technology. I represent Blockchain Web Services (BWS), a platform that makes blockchain easy for developers. With BWS, you can start using blockchain services from day one and integrate them into your projects seamlessly. Let's connect and explore the potential of blockchain tech together. Join our Discord community for more!

Discord:
https://discord.com/invite/EUPSezD8j2

Learn more:
https://bws.ninja

Cheers,
Abdul
Hacktoberfest 2023
Tags: hack23maintainer, hacktoberfest23
Published: 2023-10-31 14:33:27

<!-- ✨This template is only meant to get your ideas going, so please feel free to write your own title, structure, and words! ✨ -->

### Intro
<!-- Share a bit about yourself as a maintainer. Is this your first Hacktoberfest, or have you maintained in others? Feel free to embed your GitHub account by using {% embed LINK %} -->
I have been part of hacktoberfest for quite few years and it has helped me alot both on my personal and professional level.
Thank you for letting me a part of this great event every year.

### Project
<!-- Tell us about the repository that you hosted. What processes did you set up to review and merge pull requests? Feel free to embed your GitHub repo by using {% embed LINK %} -->

### Highs and Lows
<!-- What were some of your biggest accomplishments or light-bulb moments this month? Did any problems come up that seemed impossible to fix? How did you adapt in those cases?  -->

### Growth
<!-- What was your skillset before Hacktoberfest 2023 and how did it improve? Have your project goals changed since publicly maintaining it? -->
Hacktoberfest 2023
Tags: hack23contributor, hacktoberfest23
Published: 2023-10-31 14:30:50

<!-- ✨This template is only meant to get your ideas going, so please feel free to write your own title, structure, and words! ✨ -->

### Intro
<!-- Share a bit about yourself as a contributor. Is this your first Hacktoberfest, or have you contributed to others? Feel free to embed your GitHub account by using {% embed LINK %} -->

### Highs and Lows
<!-- What were some of your biggest accomplishments or light-bulb moments this month? Did any problems come up that seemed impossible to fix? How did you adapt in those cases?  -->

### Growth
<!-- What was your skillset before Hacktoberfest 2023 and how did it improve? Have your learning or career goals changed since working on these new projects? -->
Professional Cover Letter Writing Services in UAE
Tags: professional
Published: 2023-10-31 14:27:02

If you are looking for a cover letter service provider, you have many options to choose from. Here are some of the best cover letter writing services of 2023, according to [CV Writing Services](https://cvwritingservices.ae/). This service has over 10 years of experience in writing cover letters, and they ask you to answer a few questions about your professional background before assigning you a writer. You can check out their website [Cover Letter Writing Services](https://cvwritingservices.ae/cover-letter-writing). This is a platform where you can find freelance writers who specialize in cover letters. You can browse through their profiles, reviews, and portfolios, and choose the one that suits your needs and budget. You can also post your project and receive proposals from qualified writers. This is a well-known job board that also offers resume and cover letter writing services. They have a team of certified writers who can create a customized cover letter for you based on your industry and career goals. You can find out more about their service. These are just some of the examples of cover letter service providers that you can consider. There are many more options available online, so you can do some research and compare the features, prices, and reviews of different services before making your decision. I hope this helps you find the best cover letter service provider for your needs. Good luck with your job search.
Email obfuscation
Tags: webdev, javascript, html, webscraping
Published: 2023-10-31 14:20:04

Email obfuscation is a technique used to hide email addresses from web scrapers and spammers by converting them into a format that can be easily read by humans but is challenging for automated bots to recognize. One common way to obfuscate email addresses is by using JavaScript to dynamically assemble the email address on the client side. Here's a simple example of an email obfuscation script:

We recommend using the email to link tool https://veilmail.io to [hide email on website with captcha](https://veilmail.io)

```html
<!DOCTYPE html>
<html>
<head>
  <title>Email Obfuscation</title>
</head>
<body>

<!-- Place this div where you want to display the email address -->
<div id="email-container"></div>

<script type="text/javascript">
  // Define the email parts
  var user = "contact";  // Replace with the user part of your email
  var domain = "example.com";  // Replace with your domain

  // Create an array to store the email characters
  var emailCharacters = (user + "@" + domain).split("");

  // Obfuscate the email address
  for (var i = 0; i < emailCharacters.length; i++) {
    emailCharacters[i] = '&#' + emailCharacters[i].charCodeAt(0) + ';';
  }

  // Create a mailto link
  var emailLink = '<a href="mailto:' + user + '@' + domain + '">' + emailCharacters.join('') + '</a>';

  // Display the email address
  document.getElementById("email-container").innerHTML = emailLink;
</script>

</body>
</html>
```

This script creates a mailto link with the email address obfuscated using HTML character codes. When a user clicks on the link, it will open their default email client with the obfuscated email address, making it harder for bots to scrape.

Keep in mind that no obfuscation technique is foolproof, and determined spammers may still be able to extract email addresses from your website. Additionally, obfuscation can make it more challenging for users with screen readers or other accessibility needs to access your contact information. It's a good practice to balance email obfuscation with other spam prevention methods, such as using CAPTCHAs and maintaining a good spam filter.

Be sure tocheck out the email to link tool https://veilmail.io to [hide email on website with captcha](https://veilmail.io) to prevent unwanted spam.
Hacktoberfest Contributor
Tags: hack23contributor, hacktoberfest23, hacktoberfest
Published: 2023-10-31 14:19:25

Hacktoberfest made October month too special

Hey DEVs, I'm Binay Tripathy, Happy to share I have completed my 1st year of hacktoberfest challenge.

#### [GitHub Profile](https://github.com/binay-tripathy)

### Highs and Lows
I have decided to take an opportunity to contribute with different technologies. Initially it took time, but later on it was quite smooth and challenging. I was highly excited on the outcome. I have seen lots of repos where I couldn't even run the application because of missing classes or methods. I had to contribute on new feature and also the existing bug.

### Growth
Hacktoberfest is a great way of encouraging developers. I just needed some push from others to do something and here is the hacktoberfest for that. Initially I was little busy, I started late but when I started contributing it was not restrict to 4 PRs, I just continued to contribute on multiple repo's irrespective of challenges. It helped a lot in understanding others code and way of practicing clean code.
gdb debugger
Published: 2023-10-31 14:17:26


runs on many Unix-like systems and works for many programming languages, including Ada, Assembly, C, C++, D, Fortran, Haskell, Go, Objective-C, OpenCL C, Modula-2, Pascal, Rust,...

```strings programm```
shows all strings of a programm 

```./check $(python3 -c 'print("a" * 200)')```


##gdb debugger

gdb programm (start programm in same folder) 
(gdb) disas function
(gdb) b* 0x401402 (set breakpoint)
(gdb) r xxxxxxxx (start Programm with parameter (eg pw))
(gdb) i r (info register) show registger
eg PW: for every letter show:
(gdb) set $al = $dl
(gdb) c
Spatial Data in Graph Databases: Geographical Applications
Tags: postgres, apacheage
Published: 2023-10-31 14:15:33

##Introduction
The integration of spatial data in graph databases has revolutionized the way we analyze and visualize geographical information. From urban planning to logistics optimization, the applications are boundless. In this post, we'll explore how Apache AGE, a powerful PostgreSQL extension, empowers spatial data analysis using the versatile Open Cypher query language.

##Leveraging Apache AGE for Geographical Applications

Apache AGE extends PostgreSQL to incorporate graph database capabilities, making it a versatile platform for handling complex spatial relationships. This combination of PostgreSQL, Apache AGE, and Open Cypher provides a seamless environment for geographical analysis.

##Key Advantages of Using Apache AGE for Spatial Data Analysis

1. Efficient Representation of Spatial Relationships: Apache AGE's graph database capabilities allow for the natural representation of geographical entities like locations, routes, and boundaries, along with their intricate relationships.

2. Cypher for Geospatial Queries: Open Cypher, with its intuitive syntax, enables powerful querying of spatial data. You can traverse geographical graphs, retrieve location-based insights, and perform complex spatial operations.

3. Real-time Geospatial Analytics: Apache AGE's real-time querying capabilities are invaluable for dynamic geospatial analysis. It enables businesses to make informed decisions based on the latest geographical data.

4. Optimized Route Planning and Logistics: By modeling transportation networks and locations as nodes and edges in a graph, Apache AGE facilitates efficient route planning, enhancing logistics operations.

5. Urban Planning and Infrastructure Optimization: Graph databases are instrumental in urban planning projects. They allow for the modeling of city layouts, infrastructure networks, and the impact of development projects on the environment.

Spatial data analysis is indispensable in today's data-driven world, and Apache AGE equips businesses with a powerful tool set to harness geographical information effectively. By seamlessly integrating with PostgreSQL and leveraging the capabilities of Open Cypher, Apache AGE empowers you to unlock valuable insights from your spatial data.

More about Apache AGE here:

GitHub: https://github.com/apache/age
Website: https://age.apache.org/
Hacktoberfest23 Pledge
Tags: hacktoberfest23, hacktoberfest
Published: 2023-10-31 14:15:09

Intro
Hi, this is Binay Tripathy. This is my first time at dev.to and hacktoberfest both. I joined hacktoberfest this year since I needed an opening to join open source community and it helped greatly.

Background
I have been mild coding since few years but never got around to getting to know a language from inside out or a domain. But I enjoy doing it.

Pledge
MY goal is to contribute 4 good PR's during October and hoping for a smooth journey contributing in open source.
How to get the F1, F2, F3 ... keys in Rust ? 💬
Tags: rust, programming, tutorial, opensource
Published: 2023-10-31 14:14:42

If you're using a **GNU/Linux** operating system and want to develop a system that requires the F1, F2, F3, and so on keys as inputs, I recommend reading this short article on how to do it!

First of all, let's add the library that will allow us to interact with keyboard events at a low level. I'm talking about [k_board](https://crates.io/crates/k_board).

`cargo add k_board`

Let's add the program's logic:

```rust
use k_board::{Keyboard, Keys};

fn main() {
    for key in Keyboard::new() {
        match key {
            Keys::F(1) => /*run some function*/,
            Keys::F(5) => /*update screen*/,
            Keys::F(11) => /*full screen*/,
            Keys::Enter => break,
            _ => {}
        }
    }
}

```
k_board has matched from F1 to F12, here is the [source code](https://docs.rs/k_board/latest/src/k_board/lib.rs.html).