teleren/devto huggingface dataset:
Amazon EC2 Auto Scaling with EC2 Spot Instances
Tags: aws, cloud, awscommunity, 100daysofcloud
Published: 2023-02-01 18:26:57

[32/100] #100DaysOfCloud Today, I created a simple stateless, fault-tolerant workload using Amazon EC2 Auto Scaling with a launch template to request a mix of Amazon EC2 Spot and On-Demand Instances under an Application Load Balancer.

Launch and automatically scale a fleet of On-Demand Instances and Spot Instances within a single Auto Scaling group. In addition to receiving discounts for using Spot Instances, one can use Reserved Instances or a Savings Plan to receive discounted rates of the regular On-Demand Instance pricing. All of these factors combined helps to optimize the cost savings for EC2 instances and helps to get the desired scale and performance for our application.

Can enhance availability by deploying the application across multiple instance types running in multiple Availability Zones. Although we can use one instance type, it's a best practice to use multiple instance types. This way, Amazon EC2 Auto Scaling can launch another instance type if there is insufficient instance capacity in your chosen Availability Zones. If there is insufficient instance capacity with Spot Instances, Amazon EC2 Auto Scaling keeps trying to launch from other Spot Instance pools. (The pools it uses are determined by the choice of instance types and allocation strategy.) Amazon EC2 Auto Scaling helps to leverage the cost savings of Spot Instances by launching them instead of On-Demand Instances.

You can try do it by yourself by following the steps from the link below: [GitHub](https://github.com/aaditunni/100DaysOfCloud/blob/main/Journey/032/Readme.md)
How Domain Authentication for Emails Work on Sendchamp
Published: 2023-02-01 18:26:36

Domain authentication is an important aspect of email communication. It verifies the identity of the sender and ensures that the emails are not marked as spam or blocked by the recipient’s email server. On Sendchamp, domain authentication is a simple process that can be completed with no coding skills.

The first step is to [Sign up on Sendchamp](https://my.sendchamp.com/?utm_campaign=sendchamp_developers_website&utm_medium=webl&utm_source=sendchamp_developers_website) if you don't have an account. If you already have an account, the next step is to access your [Sendchamp Dashboard](https://my.sendchamp.com/). From there, navigate to the email section and select the "Domain auth and SMTP" option. Fill in the details for your domain. Enter your domain name without including HTTP or HTTPS. For example, mywebsite.com or mail.mywebsite.com.


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/3wqo8fgdgv11ty3qs0u6.png)

Once the information is entered, Sendchamp will provide you with a set of cname records. These records must be added to your DNS server for verification. The process of adding cname records to your DNS server may vary depending on your domain provider, but typically involves logging into your domain account and adding the records under the DNS management section.

Once the cname records have been added, the verification process can begin. Sendchamp will check that the records have been correctly added to your DNS server and verify your domain. The process may take a few hours to complete, but once it is done, your domain will be fully authenticated on Sendchamp.

With domain authentication, you can be sure that your emails are reaching your customers without any issues. It also helps to establish trust with your customers and improve the deliverability of your emails. So, domain authentication is a must-have feature if you’re looking to send high-quality, professional emails to your customers.

In conclusion, domain authentication is a straightforward process on Sendchamp, making it easy for businesses to send messages to their customers with confidence. Whether you’re communicating via WhatsApp, SMS, email, or voice, Sendchamp has you covered. With zero coding skills required, it’s the perfect platform for growing businesses looking to take their communication to the next level.
Analytical Adventure
Tags: analytics, datascience, machinelearning
Published: 2023-02-01 18:03:26

"Once upon a time, in a land far, far away (ok, maybe just a few cubicles over), I embarked on a wild and wondrous journey into the world of data. It was a land filled with endless possibilities, where every number and statistic held the key to unlocking the secrets of the universe (or at least, the secrets of your business).

But as with any great adventure, there were challenges to overcome. The data was vast, overwhelming, and sometimes, just plain confusing. But fear not, my friends! For with the power of datascience, even the most daunting of data problems can be conquered.

So grab your calculators and your courage, and join me on this analytical adventure as we delve into the world of data and discover the solutions it holds!"

**Data Science** is an interdisciplinary field that involves using scientific methods, algorithms, and systems to extract knowledge and insights from structured and unstructured data. 

**Machine Learning** is a subset of Artificial Intelligence that provides systems the ability to automatically learn and improve from experience without being explicitly programmed.

In data science, data is collected, cleaned, and analyzed to gain insights and make predictions. Machine learning algorithms are then used to build models that can automatically make predictions or decisions based on input data. These models can be used in various applications such as natural language processing, image and speech recognition, and prediction of outcomes in fields such as finance, healthcare, and marketing.


Exciting advancements are constantly being made in the field, including the development of deep learning algorithms and the increasing availability of big data, leading to improved accuracy and efficiency in prediction and decision making.

In our next blog we'll get to cover the characteristics of data sources.
What is AWS EKS
Tags: beginners, devops, kubernetes, aws
Published: 2023-02-01 17:57:10

###Introduction to AWS EKS
AWS EKS, or Amazon Elastic Kubernetes Service, is a fully managed service from AWS that provides a reliable, secure, and scalable Kubernetes environment. Users can quickly create clusters and install applications on them thanks to it. Users can benefit from features like autoscaling and automated updating as well as manage, monitor, and scale their Kubernetes environment with ease using EKS. EKS is made to free users from having to manage the underlying infrastructure so they can concentrate on creating and using applications. Additionally, it gives users access to the full range of AWS services, enabling them to fully utilize the cloud's power. EKS makes it simple to set up and maintain Kubernetes clusters, allowing users to deploy their applications quickly and work more efficiently.

EKS is an excellent choice for running Kubernetes on AWS because it is:
- Is easy to set up and manage
- Is highly available and scalable
- Integrates seamlessly with other AWS services

If you're new to Kubernetes or looking for a managed solution that makes it easy to run Kubernetes on AWS, EKS is a great option!

###AWS EKS Benefits
####Secure and Controlled Access
EKS is highly secure and provides control over user access, allowing organizations to enforce least-privilege access policies. With AWS EKS, organizations can configure user authentication and authorization using AWS IAM, allowing users to access resources based on their assigned roles.
####Reducing Operational Complexity 
EKS Helps organizations reduce operational complexity. It automates the deployment, scaling, and management of Kubernetes clusters, allowing organizations to focus on their applications and workloads.
####Scaling Applications and Workloads
EKS allows organizations to quickly and easily scale their applications and workloads. With AWS EKS, organizations can spin up Kubernetes clusters in minutes and scale up or down as needed.
####Integrating with AWS Services 
EKS integrates with other AWS services. AWS EKS allows organizations to use AWS services such as Amazon ECS, Amazon EC2, Amazon S3, and more, making it easier to manage their applications and workloads.
####Cost-Effective Kubernetes Clusters 
EKS is cost-effective. Organizations can pay for the services they use, and since AWS EKS automates the deployment, scaling, and management of Kubernetes clusters, organizations can save time and money.


Overall, AWS EKS provides businesses with a dependable, secure, and economical solution to scale their Kubernetes clusters. With EKS, businesses can concentrate on running and distributing their apps as opposed to controlling the underlying infrastructure. EKS is a fantastic option for hosting Kubernetes on AWS thanks to its robust features, interfaces with other AWS services, and support for autoscaling.
Best Churn Management Software to Keep Your Business Afloat
Tags: startup
Published: 2023-02-01 17:47:14

**Customer satisfaction and generating leads are two of the most important aspects of any business's success. **

Millions, if not billions, of companies are trying to keep existing customers while reducing churn rates.
The study found that a 5% decrease in customer retention could boost profits by 25% to 95%.

**What is Churn Management Software?**
Businesses use churn management software to keep track of customer churn. By using churn prediction software, you can identify trends and patterns in customer behavior and predict future churn. By offering incentives to customers at risk of leaving, businesses can also reduce customer churn.

**How does customer churn software work?**
Churn management software helps businesses reduce customer churn, or the number of customers who cancel their service. A variety of methods are used by the software to calculate the churn rate.

One of the most common ways to calculate churn is by using monthly recurring revenue. This method measures a company's revenue from customers who are still using their service. 

The monthly recurring revenue is calculated by dividing the total revenue generated by the number of customers still using your service at the end of the month.

**For example:**
For example, let’s say a company has 100 customers and generates $10,000 in revenue in a month. If 10 of those customers cancel their service, that leaves 90 customers remaining. The company’s MRR would then be $10,000 / 90 = $111.11.

[Read more](https://churnfree.com/blog/best-churn-management-software-to-keep-your-business-afloat/)
nodemcu crashes while sending get request to webser implemented with asyncwebsever while serialcommunication is on
Published: 2023-02-01 17:35:22

I am trying to read data from gps module and update the location on server with inverval of 5s and server index.html from nodemcu but whenever i use gpsmodule then and send request for index.html then server crashes i am using asyncwebserver library for creating server there is the error
No AI Needed! 7 Proven Time-Saving Apps and tools To Turn Every Front-End Developer & Designer into a Design Ninja 🎨🥷🏽! Part One
Tags: ai, css, html, javascript
Published: 2023-02-01 17:29:03

## Unleash Your Design & UX UI Potential with the No-Search Required Tools Already at Your Fingertips: AI & ChatGPT Take a Backseat

With AI and ChatGPT on the rise, it's important to remember the tried and true tools that are already available to help with our design and UX/UI needs. No searching required and user-friendly interfaces come standard. 

Here is Part One of my 7 favorite tools for streamlining the design process:

1. https://html-css-js.com
This site has it all, from borders to typography and everything in between. It even includes templates and code for HTML and JavaScript. And if you need further explanation on what the generated code means, tutorials are readily available. It's a one-stop-shop for all things design!

2. https://codepen.io/jipdev/full/ZEJOWjP
This tool is perfect for generating grid layouts. Simply set the number of columns and cards, and it will randomly generate a layout for inspiration.

3. https://webcode.tools/generators
This site not only generates code for CSS, HTML, and more, but it also helps with SEO for your website. 

4. https://keyframes.app/ 
Ideal for animation enthusiasts, this app is a great visualizer for trying out concepts and generating ideas.

5. CSS Viewer (Chrome Extension) https://github.com/miled/cssviewer
Ever wonder what font or color scheme a website is using? This extension allows you to quickly identify these elements without opening dev tools.

6. Outliner (Chrome Extension)
https://chrome.google.com/webstore/detail/outliner-css/epodomlablfiehjgajhlhbdhidlkokaj
This extension is a must-have for any designer or developer. It allows you to easily see the layout and how each section of a website is divided.

7. Milanote
https://milanote.com
A mood board and sketchbook all in one, this app is my go-to for organizing and collaborating with teams. The interface is intuitive and easy to navigate.

What tools and apps do you use? 

Part Two of my favorite design tools: [Part Two](https://dev.to/ramziosta/no-ai-needed-7-proven-time-saving-apps-and-tools-to-turn-every-front-end-developer-designer-into-a-design-ninja-part-two-4a6k)
CLI - commands and their uses
Tags: cli, commands
Published: 2023-02-01 17:22:53


1)What is the difference between Service and Application? 
- Service(API) is a kind of work/process which is mostly used by other programs, whereas Application(Software) is a service offered to the user or any other application to manage the process/work.

* * * 
<br/>
2)What are these wildcards ~, ., .., * and ??
- Wildcards are special characters which are used to ease the search process. It is used for identifying multiple items but not identical data.
    *  ~     Home directory
    *  .     Current working directory
    *  ..    Prev to the current directory
    *  *     Any number of characters.

* * * 
<br/>
3)What are the different flags for the kill? Why do we use kill -9 in general?
- Kill command is used to kill the process in Linux systems but also we can use it to halt/interrupt/continue the process. To do that we can use the command 
 ``` kill SignalName/ID PID``` 
  
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/fiqvblk2ab6f1uz2ng5x.png)
* * * 
<br/>
4)Are you clear about file permissions? Explain them. chmod and chown commands?
    
* CHMOD cmd is used to alter the permission(Read, Write, Execute) of the file. Two different ways of representation.
    * Absolute - ```CHMOD 755 file.txt```
    * Symbolic - ```CHMOD a=rwx file.txt```
* CHOWN cmd is used to update the user/group of the file.
    * To update the user - ```Sudo CHOWN user filename```
    * To update user & group - ```Sudo CHOWN user: group filename ```

* * * 
  
<br/>
5)Usage of Ctrl+R to search previously run commands, arrow keys and tab autocompletion.
* **Tab** - Autocomplete the word based on what we have typed.
* **Arrow Keys** - up/down keys Navigate to frequently used commands.
* **CTRL+R** - It's like a search box to find the previously ran command.

* * *
View All changed files in Branch in PhpStorm
Published: 2023-02-01 16:57:04

Hi everyone, I found a great PhpStorm Power User Tip today which will enable you easily view files ALL files changed in the current branch you are working on while in PhpStorm.

USECASE:

You are working on a feature/bug branch off of your staging branch, and you want to see all files changes within the feature/bug branch from staging.

1) click on the top folder of your project in project files
2) press control-shift-a for the actions popup
3) type "compare with branch" (if it doesn't show up, checkbox 'include disabled actions'
4) Voila! The Changes tab is now available!


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/208iyj4gbuixcbbk5tum.png)
Entendendo SetTimeout e SetInterval:
Tags: javascript, beginners, programming
Published: 2023-02-01 16:53:45

O conceito de SetTimeout e SetInterval é ligado ao uso assíncrono do JavaScript. Eles são métodos que gerenciam um tempo no nosso código quando está em execução de segundo plano. 

**SetTimeout:**

A função setTimeout executa uma ação após um determinado período de tempo especificado em milissegundos após o tempo determinado acabar. 

Sua sintaxe pode ser exemplificada nesse modelo:

```
setTimeout(functionRef) //A function será executada depois que o timer expirar.

setTimeout(functionRef, delay)// (delay) O tempo determinado que o timer deve aguardar.

setTimeout(functionRef, delay, param1)// (param1) Argumentos adicionais que são passados ​​para a função especificada por functionRef.


setTimeout(functionRef, delay, param1, param2)Segundos parâmetros...
```


A forma dele em ação seria assim:

```
setTimeout(function() {
  console.log("Executado depois de 3 segundos");
}, 3000);
```

Isso fará com que a mensagem "Executando depois de 3 segundos" seja exibida no console após 3 segundos.



**SetInterval:**

Já a função setInterval executa uma ação de forma repetida a cada intervalo de tempo especificado, também em milissegundos. 

Por exemplo:

```
setInterval(function() {
  console.log("Executando a cada 2 segundos");
}, 2000);
```
Isso fará com que a mensagem "Executando a cada 2 segundos" seja exibida no console a cada 2 segundos.


É interessante que os dois casos retornam um ID que pode ser usado para cancelar a execução futura da função, usando a função clearTimeout ou clearInterval, respectivamente. Por exemplo:

```
let intervalID = setInterval(function() {
  console.log("Executando a cada 2 segundos");
}, 2000);

// Parar a execução após 5 segundos
setTimeout(function() {
  clearInterval(intervalID);
}, 5000);
```

Em resumo, vimos o como setTimeout e setInterval funcionam e com utilizar pra controlar a execução intervalo de tempo em JavaScript. É importante salientar sobre o uso indevido destes, pois podem afetar o desempenho da aplicação se não forem gerenciados corretamente.

Obrigado por ler!!!
Unleashing the Power of Structs: A Guide to Organizing Data in Solidity
Tags: web3, blockchain, solidity, ethereum
Published: 2023-02-01 16:43:06

> Solidity Structs: The building blocks for organizing and managing complex data in Ethereum smart contracts.

Record representation is accomplished through the usage of structs in Solidity. 

Consider the following scenario: you want to keep track of your books in a library. You may want to keep track of the following characteristics of each book:

- Title

- Author

- Subject

- Book ID

##Defining a Struct:

The struct keyword must be used in order to define a Struct. The term struct is used to define a new data type that has more than one member. The following is the format of the struct statement:
```
struct struct_name { 
   type1 type_name_1;
   type2 type_name_2;
   type3 type_name_3;
}
```
Example:
```
struct Book { 
   string title;
   string author;
   uint book_id;
} 
```
##Accessing a Struct and its variable:

To access any member of a structure, we use the member access (.) operator, which lets us get to any part (.). It looks like a period between the structure variable name and the structure member that we want to get to. You would use the struct to set up variables of the structure type with the help of this tool. Structures can be used in programs like this one to make things easier for people to understand.

The following code will help you understand how structs work in Solidity:
```
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

contract Todos {
    struct Todo {
        string text;
        bool completed;
    }

    // An array of 'Todo' structs
    Todo[] public todos;

    function create(string memory text) public {
        // 3 ways to initialize a struct
        // - calling it like a function
        todos.push(Todo(text, false));

        // key value mapping
        todos.push(Todo({text: text, completed: false}));

        // initialize an empty struct and then update it
        Todo memory todo;
        todo.text = text;
        // todo.completed initialized to false

        todos.push(todo);
    }

    // Solidity automatically created a getter for 'todos' so
    // you don't actually need this function.
    function get(uint index) public returns (string memory text, bool completed) {
        Todo storage todo = todos[index];
        return (todo.text, todo.completed);
    }

    // update text
    function update(uint index, string memory text) public {
        Todo storage todo = todos[_index];
        todo.text = text;
    }

    // update completed
    function toggleCompleted(uint index) public {
        Todo storage todo = todos[_index];
        todo.completed = !todo.completed;
    }
}
```
For more content, follow me on - https://linktr.ee/shlokkumar2303
Netlify Acquires GatsbyJS
Tags: news, javascript, webdev, gatsby
Published: 2023-02-01 16:35:53

It was announced today that [Netlify has acquired Gatsby Inc.](https://www.netlify.com/press/netlify-acquires-gatsby-inc-to-accelerate-adoption-of-composable-web-architectures/)

{% embed https://thenewstack.io/netlify-acquires-gatsby-its-struggling-jamstack-competitor/ %}

What do you think this means for...

- The JS/webdev ecosystem?
- The future of Gatsby?
- The future of the Composable Web?
- You, as a developer? (Or your team!)
How to use Python Configparser Package
Tags: python, conifgpar
Published: 2023-02-01 16:31:51




```python
import configparser
import os

def get_config(section, key):
    config = configparser.ConfigParser()
    config.read(os.path.join(APP_PATH, 'config.ini'))
    return config

CONFIG = get_config()

# You can use it as CONFIG['section']['key']

```
Introducing Wisdom — Your Daily Dose of Inspiration
Tags: javascript, reactnative, motivation, news
Published: 2023-02-01 16:17:10

![](https://cdn-images-1.medium.com/max/2000/0*w9MhDWL7vBX6nl9Q)

[Download Now](https://apps.apple.com/us/app/wisdom-daily-quotes/id1665478736)

I am thrilled to announce the launch of my latest creation — the Wisdom app. Designed to help you cultivate wisdom and lead a more meaningful life, Wisdom delivers daily quotes from five categories — Success, Inspiration, Wisdom, Friendship, and Famous Quotes — to help you get through each day with lessons and insights from successful individuals. With over 4,000 quotes and daily notifications, the Wisdom app provides daily inspiration to help you navigate life’s challenges.

In addition to the daily quotes, Wisdom also offers daily reminders, so you never miss an opportunity to be inspired. And for iOS users, we have added a home widget so you can have quick access to a daily quote right from your home screen.

![](https://cdn-images-1.medium.com/max/4096/1*IxoL4mVNppUPgWdnkqAVKw.png)

We also proudly stand with Ukraine and are committed to bringing positivity and inspiration to people worldwide.

If you’re looking for a tool to help you stay motivated and inspired, be sure to check out the Wisdom app. Available now on the App Store, the Wisdom app is your ultimate guide to personal growth and wellness. Download it now at: [https://apps.apple.com/us/app/wisdom-daily-quotes/id1665478736](https://apps.apple.com/us/app/wisdom-daily-quotes/id1665478736) and follow us on Instagram at [https://www.instagram.com/wisdom_dailyquotes/](https://www.instagram.com/wisdom_dailyquotes/) for more daily inspiration.

Start your journey to a more inspired life today! Download Wisdom now on the App Store. #WisdomApp #AppStore #Launch #Motivation #Inspiration 💫