teleren/devto huggingface dataset:
Introducing CHEMAXE: The Innovation in Chemical Trade
Tags: chemicaltrading, chemaxe, pythondevelopment, innovation
Published: 2024-06-19 18:21:41

**Introducing CHEMAXE:** The Innovation in Chemical Trade
CHEMAXE serves as a centralized platform where buyers and sellers engage in real-time trading of chemicals like methanol, toluene, and styrene. Powered by advanced algorithms, CHEMAXE automates the matching process, ensuring seamless transactions and updated market prices through the Last Traded Price (LTP) model.

**Leveraging Firebase for Real-Time Database Management**
One of the core aspects of CHEMAXE’s infrastructure is its real-time trading database, managed efficiently using Firebase. As a Python developer, my role involves:

**Database Integration:** Implementing Firebase to ensure real-time updates of trade data, enabling instantaneous matching of buyers and sellers.
**API Development:** Creating robust APIs to support various platform functionalities, ensuring smooth communication between frontend interfaces and backend systems.
Testing and Optimization: Conducting thorough testing to validate functionalities and optimize performance, guaranteeing a seamless user experience.
Ensuring Data Security and User Verification
Security and trust are critical in chemical trading. With Firebase’s secure infrastructure, we manage user authentication and data security with utmost diligence. Features like:

**User Authentication:** Implementing Firebase Authentication to safeguard user accounts and ensure secure access to platform features.
KYC Verification: Facilitating a streamlined Know Your Customer (KYC) process, verifying user identities and business credentials to maintain platform integrity.
Enhancing User Experience with Real-Time Insights
Firebase’s real-time capabilities empower CHEMAXE users with:

**Market Insights:** Providing real-time updates on market prices and trade volumes, enabling informed decision-making.
Transaction Monitoring: Allowing users to track their transactions in real-time, from order placement to trade completion.
Future Directions and Continuous Improvement
As we continue to innovate, CHEMAXE is committed to enhancing its features:

**AI Integration:** Exploring AI-driven solutions to further optimize trade matching algorithms and enhance user experience.
Enhanced Analytics: Leveraging Firebase Analytics to gain deeper insights into user behavior and platform performance.
Join the CHEMAXE Community
Whether you’re a chemical trader, buyer, or seller, CHEMAXE offers a cutting-edge platform designed to simplify and optimize your trading experience. Explore the possibilities with us and join the CHEMAXE community today.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/z8msvnx06wql5w19z021.png)
Should I buy a new PC?
Tags: learning, hardware
Published: 2024-06-19 18:14:53

Hello all!

I am a complete beginner to the world of programming and I had a few questions concerning my hardware and whether or not it needs an upgrade.

My specs:

Dell Inspiron 3584
128GB with about 11GB free
intel I3-7020U @2.3Ghz
8GB ram

Currently installed:

VSCode
Webstorm
IDEA for Python
JDK 22

If there is any more information I can provide let me know.
Convert .caf to mp3 by Directory
Tags: audio, ffmpeg, chatgpt
Published: 2024-06-19 18:10:51

[***Read the original conversation shared via ChatGPT***](https://chatgpt.com/share/3553b9d1-3c28-4a58-9111-50db9ddd5aa4)

---

#### You:
If possible, could you help me construct an ffmpeg command that converts all of the .caf files in the current directory to 320 kbps, constant bitrate mp3s?

#### ChatGPT:
Certainly! To construct an `ffmpeg` command that converts all `.caf` files in the current directory to 320 kbps constant bitrate MP3 files, you can use a shell loop in a terminal. Below is an example of how you can do this on a Unix-like system (such as macOS or Linux):

```sh
#!/bin/bash
for file in *.caf; do
    # Extract the base name without the .caf extension
    base=$(basename "$file" .caf)
    # Convert the .caf file to a .mp3 file with 320 kbps bitrate
    ffmpeg -i "$file" -codec:a libmp3lame -b:a 320k "${base}.mp3"
done
```

### Explanation:

1. `#!/bin/bash`: This line is the shebang, which tells the system that this script should be run with the Bash shell.
2. `for file in *.caf; do`: This loop iterates over all files in the current directory with the `.caf` extension.
3. `base=$(basename "$file" .caf)`: This command extracts the base name of the file, removing the `.caf` extension.
4. `ffmpeg -i "$file" -codec:a libmp3lame -b:a 320k "${base}.mp3"`: This command converts the input `.caf` file to an MP3 file with a constant bitrate of 320 kbps using the `libmp3lame` codec.

### Usage:

1. Open your terminal.
2. Navigate to the directory containing your `.caf` files.
3. Save the script to a file, for example, `convert_caf_to_mp3.sh`.
4. Make the script executable by running `chmod +x convert_caf_to_mp3.sh`.
5. Run the script by typing `./convert_caf_to_mp3.sh`.

This script will process all `.caf` files in the directory and convert them to MP3 files with the specified settings. If you encounter any issues or need further customization, feel free to ask!
New tech sales jobs in the US today 19/06/2024
Tags: career, jobs, hiring, remote
Published: 2024-06-19 18:08:16

Nouvelles Opportunités d'Emploi Aujourd'hui !

Software Engineer ffsdgsdwww / Tech Company grevvddasv / https://www.baguettebrain.com/undefined

Data Scientist frprpgoss / Data ffffffCompany / https://www.baguettebrain.com/undefined

Web Developer / Web Development Inc. / https://www.baguettebrain.com/undefined
Smart meal tracking on whatsapp [POC]
Tags: devchallenge, twiliochallenge, ai, twilio
Published: 2024-06-19 18:01:48

*This is a submission for [Twilio Challenge v24.06.12](https://dev.to/challenges/twilio)*

## What I Built
I developed a proof-of-concept WhatsApp bot that accepts an image of the meal you're having. In return, it provides the calorie intake along with detailed nutrition information such as carbohydrates, fats, and proteins.

This is just a proof of concept; we can significantly enhance it by incorporating a database to store user data and generate regular reports. Use background workers for image saving and calorie estimation from AI, and employing another worker to send the messages.

Read more about functionality and flow on github [readme](https://github.com/sanketmunot/twilio-ai-challenge-meal-alerts/blob/main/README.md)
## Demo
I cannot provide a demo because I used ngrok to route WhatsApp webhook requests to localhost. But here are some screenshots ->

Positive case I send an image of Indian thali
![Indian thali](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/eks15q1xbm3ddtpchti4.jpeg)

Positive case I send an image of burger meal
![Burger meal](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/dm1p9xgfr2igwv5lchlg.jpeg)

Negative case Naruto, When he is kept away from Ramen (IYKYK)
![When you keep Naruto away from Ramen](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rp95r6rr0ljjuxb5ief7.jpeg)

## Twilio and AI
- **Twilio's API** is used to receive images of food sent by users via WhatsApp.
- **Google's Generative AI model - Gemeni** analyzes the received images to estimate the caloric content and nutritional breakdown.
- **Twilio** sends back the detailed nutritional information to the user on WhatsApp.
- The integration of **Twilio and AI** enhances user interaction by providing instant and informative responses.


## Additional Prize Categories
Twilio Times Two
Impactful Innovators

Thanks for reading my post, connect me on Linkedin @ [Sanket Munot](https://www.linkedin.com/in/sanket-munot/)
D
Tags: devchallenge, twiliochallenge, ai, twilio
Published: 2024-06-19 17:35:12

*This is a submission for the [Twilio Challenge ](https://dev.to/challenges/twilio)*

## What I Built
<!-- Share an overview about your project. -->

## Demo
<!-- Share a link to your app and include some screenshots here. -->

## Twilio and AI
<!-- Tell us how you leveraged Twilio’s capabilities with AI -->

## Additional Prize Categories

<!-- Does your submission qualify for any additional prize categories (Twilio Times Two, Impactful Innovators, Entertaining Endeavors)? Please list all that apply.  -->

<!-- Team Submissions: Please pick one member to publish the submission and credit teammates by listing their DEV usernames directly in the body of the post. -->

<!-- Don't forget to add a cover image (if you want). -->

<!-- Thanks for participating! →
what is selenium ?why do we use selenium for automation.
Published: 2024-06-19 17:47:31

selenium is atool used to automate web browsers.it helps developers and testers write scripts that can interact with different web browerslike chrome or firefox.we use selenium for automation because.it lets us test our web applications automatically.it's good because it works with many browsers and operating systems,so we can make sure our website works everywhere.also selenium supports different programming languagr=es like java or python,which makes it easier for us to write tests in the language we known best.it"s free ans has a big community,so there are lots of resources and support available when we have questions or
problems.overall,selenium is great for automating tests and making sure our website work correctly across different browsers and platforms.here are some reasons why selenium is widely used for automation.
1.Cross-Browser Testing:selenium supports multiple browsers,allowing teters to write scripts and execute them across different browsers.
2.Platform Independence:selenium supports multiple operating systems making it versatile for testing web applications.
3.Language Support:selenium supports dufferent languages like java,python,c.
4Integration:selenium can be integrated with other tools and 
frameworkslike testNG for reporting continuous 
integration,and test management.
5.Flexibility:it supports various testing types including functional testing,regression testing,and even load testing.
6.Community support:Being open source,selenium has a large and active community that provides support and shares resources and best practices.
aitorrent/Meta-Llama-3-8B-Instruct-abliterated-v3-GGUF-torrent
Tags: ai, machinelearning, llm, beginners
Published: 2024-06-19 17:41:09

https://aitorrent.zerroug.de/aitorrent-meta-llama-3-8b-instruct-abliterated-v3-gguf-torrent/
Wednesday Links - Edition 2024-06-19
Tags: java, jvm, spring, ai
Published: 2024-06-19 17:40:26

Debugger Godmode: Hacking a JVM Application with the Debugger (10 min) 🔍
https://foojay.io/today/debugger-godmode-hacking-a-jvm-application-with-the-debugger/

REST URI Design: Best Practices (7 min) 🌐
https://www.mscharhag.com/api-design/rest-uri-design

Hibernate 6 and the hibernate.type.java_time_use_direct_jdbc Setting (5 min) 🕰️
https://vladmihalcea.com/hibernate-type-java_time_use_direct_jdbc/

The Road to Gradle 9 (8 min) 🛤️
https://blog.gradle.org/road-to-gradle-9

Text Classification with Spring AI (12 min) 🤖
https://www.thomasvitale.com/text-classification-with-spring-ai/

SpringAI, LLaMA3, and pgvector: Bragging Rights (9 min) 🦙
https://dev.to/mcadariu/springai-llama3-and-pgvector-bragging-rights-2n8o
Avoiding the Dreaded 404
Tags: webdev, beginners, tutorial, seo
Published: 2024-06-19 17:39:49

I am writing this blog to track my progress. I am currently on my second week of back-end development of my bootcamp and I am learning how to work with servers. We are starting to dabble on status codes such as: 200, 400, 401, 400, 500, etc... As I start to learn how to work with servers I want to know how to develop sites without prompting status code 404.

There are several ways to redirect users to a desired page. However, if it is done carelessly it will prompt status code 404, indicating that a bad request has been made. A correct URL would look like the following: 

- /supplements/spore-probiotic-6066

This is correct because it contains the name of the website and the ID.
ID = 6066

Incorrect but acceptable URL would look like the following:

- /supplements/spore-probiotic

This will still redirect users to the desired URL despite having a missing ID. 

- /supplements/youtheory-spore-probiotic 

The aforementioned link includes the brand name and a missing ID but will still redirect users to the desired link. This is because they are known as fallback methods and the database contains built-in methods in case such errors occur. While they not may be completely accurate, it is still within the server's capacity of understanding where the user should be redirected.

This post was inspired from:
Artz, L. (2024, June 10) Designing a website to not have 404s
Retrieved from: [https://pillser.com/engineering/2024-06-10-website-without-404s]
Mount Up! A Step-by-Step Guide to Creating and Using Amazon EFS on Ubuntu
Tags: aws, efs, storage, cloudcomputing
Published: 2024-06-19 17:33:18

[Amazon Elastic File System (EFS)](https://aws.amazon.com/efs/) provides a simple, scalable, and fully managed Network File System for use with AWS Cloud services and on-premises resources. This guide will walk you through the process of creating an EFS, mounting it on an Ubuntu instance, and adding files to it.

## **Prerequisites**

- An AWS account
- An EC2 instance running Ubuntu in the same VPC as your EFS file system
- Proper security group settings to allow NFS traffic

---

## **Step 1: Create an EFS File System**

1.. Navigate to the EFS Dashboard

- Open the AWS Management Console.
- Go to the EFS dashboard.
- Create a File System

2.. Click on "Create file system".

- Follow the prompts to set up your EFS file system. You can choose the VPC, security group, and performance mode as per your requirements.

---

## **Step 2: Configure Security Groups**
1.. EFS Security Group

- Ensure the security group associated with your EFS allows inbound traffic on port 2049 (NFS).

2.. EC2 Security Group

- Modify the security group associated with your EC2 instance to allow NFS traffic from the security group used by the EFS.

---

## **Step 3: Install NFS Client on Ubuntu**

1.. Connect to Your EC2 Instance

- Use SSH to connect to your EC2 instance.

2.. Install NFS Client using the following script:

_- sudo apt-get update sudo apt-get install -y nfs-common_

---

## **Step 4: Create a Mount Point**

1.. Create a Directory to Mount EFS using the following script: 

_- sudo mkdir /mnt/efs_

---

## **Step 5: Mount the EFS File System**

1.. Mount the EFS File System using the following script:

_- sudo mount -t nfs4 -o nfsvers=4.1 < file-system-id >.efs. < region >.amazonaws.com:/ /mnt/efs_

Note: Be sure to replace **file-system-id** with your EFS file system ID and **region** with the appropriate AWS region (e.g., us-west-2).

---

## **Step 6: Verify the Mount**

1.. Check the Mount Point using the following script:

_- ls /mnt/efs_

---

## **Step 7: Add Files to EFS**

1.. Copy Files to the EFS using the following script:

_- sudo cp /path/to/local/file /mnt/efs/_

and / or 

2.. Create Files Directly in EFS using the following script:

_- echo "Hello, EFS!" | sudo tee /mnt/efs/hello.txt_

---

## **Summary**

There you have it! By following these steps, you can easily create an Amazon EFS, mount it on your Ubuntu instance, and add files to it. EFS provides a solution for storing files in the cloud, accessible from multiple instances as well as on-premises environments.

Let me know your thoughts by leaving a comment below. Thanks!
Why HTML is Not a Programming Language?
Tags: html, programming, web, tech
Published: 2024-06-19 17:29:47

## Understanding HTML
HTML stands for HyperText Markup Language. It's the standard language used to creUnderstanding HTML

HTML stands for HyperText Markup Language. It's the standard language used to create web pages. When you visit a website, what you see is made up of HTML. It's like the skeleton of a web page, providing the basic structure.

**What HTML Does**
HTML uses tags to tell the web browser how to display content. For example:

- h1 tag is used for main headings.

- p tag is used for paragraphs.

- a tag is used for links.

These tags wrap around content to give it meaning and structure. They don't do any calculations or perform any actions. They just tell the browser what each part of the content is.

## What is a Programming Language?

A programming language is used to write instructions that a computer can follow. These instructions can perform complex tasks like:

- Making decisions (if this happens, do that).

- Repeating actions (do this action 10 times).

- Calculating and processing data (add these numbers together).

Examples of programming languages include Python, JavaScript, and C++. They can create applications, games, and more by using logic and control flow.

**Key Differences**

- Structure vs. Action:
- Static vs. Dynamic:
- No Logic in HTML:

## Working Together

- While HTML is not a programming language, it often works alongside them. For example:
- CSS (Cascading Style Sheets): Used with HTML to style the content (colors, fonts, layout).
- JavaScript: Used to add interactivity (like responding to button clicks or validating forms).

Think of HTML as the building blocks of a web page, CSS as the paint and decorations, and JavaScript as the electricity that makes everything work.


## Conclusion
In simple terms, HTML is like the blueprint of a house. It shows where everything goes but doesn't build the house or make things work. A programming language, on the other hand, is like the tools and machinery that actually build the house and make things function. So, while HTML is crucial for web development, it’s not a programming language because it doesn’t perform actions or handle logic.
The significance of leadership in socio-economic development.
Published: 2024-06-19 17:25:20

dayitwa, a pioneering organization, is committed to fostering leadership and driving socio-economic transformation in India. Through its innovative programs, Dayitwa empowers individuals to become changemakers in their communities, addressing pressing challenges and creating sustainable solutions. This blog will delve into the mission, vision, and core values that guide Dayitwa's initiatives.
for more knowledge about this just click on this link : [](https://www.dayitwa.org.in/)
One Byte Explainer : NP-Complete Problems
Tags: devchallenge, cschallenge, computerscience, beginners
Published: 2024-06-19 17:15:02

*This is a submission for [DEV Computer Science Challenge v24.06.12: One Byte Explainer](https://dev.to/challenges/cs).*

## Explainer

Are you talking about a CS problem and its solution, such that you can prove your solution without getting frustrated? Can you convert other similar CS problems to your problem, but don't know how to accurately solve your problem yet? You have an NP-complete problem in your hand.

## Additional Context

CS - Computer Science.
NP-Complete - Non-deterministic Polynomial Complete problem.

Proving your solution for a problem without getting frustrated means that the correctness of the solution for the problem can be checked with polynomial time complexity, like O(n<sup>2</sup>) or even O(n<sup>10</sup>). 

<!-- Don't forget to add a cover image to your post (if you want). -->
Belajar Membuat Project Pertama Laravel
Tags: webdev, beginners, programming, laravel
Published: 2024-06-19 17:14:53

Installasi laravel menggunakan composer

```bash
composer create-project laravel/laravel project-name
```
Sekarang buka project nya dengan mengetik
```bash
cd project-name
```
Jalankan local server

```bash
php artisan serve
```
Sekarang buka `http://localhost:8000` dan jadi.
Global or Local Minima and Maxima and Saddle Points in Deep Learning
Tags: deeplearning, minima, maxima, saddlepoints
Published: 2024-06-19 17:13:18

### <**Global and Local Minima**>

- A global minimum is the globally minimal point whose gradient is zero but not a local minimum.

- A local minimum is the locally minimal point whose gradient is zero but not a global minimum.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ebk2ediuj3bh54m6n6rn.png)

*Memos:
- I used [math3d](https://www.math3d.org/).
- The left formula is 10x/e^(x^2+y^2)(-x)^e. *`x∈` is [-3, 3] and `y∈` is [-3, 3]. 
- The right formula is -4x/e^(x^2+y^2)(x)^e. *`x∈` is [-3, 3] and `y∈` is [-3, 3]. 

___

### <**Global and Local Maxima**>

- A global maximum is the globally maximal point whose gradient is zero but not a local maximum.

- A local maximum is the locally maximal point whose gradient is zero but not a global maximum.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fodccahk8j19w4zop8p3.png)

*Memos:
- I used [math3d](https://www.math3d.org/).
- The left formula is -10x/e^(x^2+y^2)(-x)^e. *`x∈` is [-3, 3] and `y∈` is [-3, 3]. 
- The right formula is 4x/e^(x^2+y^2)(x)^e. *`x∈` is [-3, 3] and `y∈` is [-3, 3]. 

___

### <**Saddle Points**>

A saddle point is the combination point of a local minimum and maximum.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/8btfpwvb8bd5d6oyrrn5.png)

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/12y26jxx1vyzm1n33cqy.png)

*Memos:
- I used [math3d](https://www.math3d.org/).
- The formula is x^2-y^2. *`x∈` is [-4, 4] and `y∈` is [-4, 4].
Learning to Code: My CS50 Story
Tags: webdev, beginners, programming, productivity
Published: 2024-06-19 17:12:24

A few months ago, I was completely clueless about what to do in my programming journey. Then, due to advice from some YouTubers and friends, I embarked on my CS50 journey. I must say—what an experience it was!

### I completed my CS50 course a few weeks ago

- By exploring, learning, failing, and understanding various technologies such as Scratch, C, data structures, memory management, HTML, CSS, SQLite, Python, JavaScript, and Flask.
    
- Learning the basics of all these technologies in such a short time with such amazing explanations and creative demonstrations was incredible.
    
- The problem sets associated with each week were really challenging and sharpened my knowledge and programming skills.
    
- ![certificate](https://cdn.hashnode.com/res/hashnode/image/upload/v1718815358425/3946626b-2b70-4b50-b973-81eae9769ba7.webp)

### Problem Sets

- To be honest, the problem sets were one of the best things, and Brian's short snippets explaining problems and solutions were amazing.
    
- The problem sets where we had to play with 64-bit math to convert normal images to various filters, the finance problem set where we had to figure out routing of GET and POST requests and various stuff in Flask, and Fiftyville where we had to catch a robber using database records were such enthralling experiences.
    

### Imposter Syndrome

- Although now I say it was such a great experience, when I was doing the course, I felt like an imposter all the time.
    
- I always doubted if I could really complete it, but then I had a friend who was doing the course with me. That really pushed me, and now here I am, writing a blog about completing it 🙂.
    

### Final Project

- When I arrived at the last part of the course to make a final project, I felt so confused about how to progress, what to make, and what technology to use, among many other questions.
    
- Then I tried to scan my own problems. I always had trouble hopping between two websites or apps for listening to lofi study beats and maintaining my to-do list. I thought, what if I could combine these two into one website?
    
- I know it's not a mind-blowing or world-changing website, but hey, at least I will use it.
    
- So I decided to make a website that combines productivity, i.e., lofi study beats, and habits, i.e., a to-do list.
    
- Website link:- [http://ashishnagmoti.pythonanywhere.com/](http://ashishnagmoti.pythonanywhere.com/)
    
- Tutorial Link:-[https://youtu.be/NlTR48V-_rs?si=qCaCIaMN0fsdA0YP](https://youtu.be/NlTR48V-_rs?si=qCaCIaMN0fsdA0YP)
    
- 

### Conclusion

- My last but not least words will be that this is one of the most amazing things I have ever done in my learning journey. I definitely recommend it to anyone who wants to enter CS.
    

So this was my experience. Share your thoughts/experience in the comments.