#install mongodb

[arashtadstudio]

How to Install and Uninstall MongoDB on Linux Debian 12

[learntechsolution]

Django provides a signals framework that allows certain senders to notify a set of receivers when certain actions occur. This can be very useful for decoupling components of your application and keeping your code modular. Django's built-in signals can be used for model events by utilizing the django.db.models.signals module. Here's a step-by-step guide on how to use Django signals for model events

[learn-techsolution]

Django provides a signals framework that allows certain senders to notify a set of receivers when certain actions occur. This can be very useful for decoupling components of your application and keeping your code modular. Django's built-in signals can be used for model events by utilizing the django.db.models.signals module. Here's a step-by-step guide on how to use Django signals for model events

[learntech-solution]

Django provides a signals framework that allows certain senders to notify a set of receivers when certain actions occur. This can be very useful for decoupling components of your application and keeping your code modular. Django's built-in signals can be used for model events by utilizing the django.db.models.signals module. Here's a step-by-step guide on how to use Django signals for model events

[learn-tech-solution]

Django provides a signals framework that allows certain senders to notify a set of receivers when certain actions occur. This can be very useful for decoupling components of your application and keeping your code modular. Django's built-in signals can be used for model events by utilizing the django.db.models.signals module. Here's a step-by-step guide on how to use Django signals for model events

[virtualizationhowto]

Graylog Docker Compose Setup: An Open Source Syslog Server for Home Labs

Graylog Docker Compose Install: Open Source Syslog Server for Home #homelab GraylogInstallationGuide #DockerComposeOnUbuntu #GraylogRESTAPI #ElasticsearchAndGraylog #MongoDBWithGraylog #DockerComposeYmlConfiguration #GraylogDockerImage #Graylogdata

A really great open-source log management platform for both production and home lab environments is Graylog. Using Docker Compose, you can quickly launch and configure Graylog for a production or home lab Syslog. Using Docker Compose, you can create and configure all the containers needed, such as OpenSearch and MongoDB. Let’s look at this process. Table of contentsWhat is Graylog?Advantages of…

[full-stack1]

Certainly! Let’s explore how to build a full-stack application using Node.js. In this comprehensive guide, we’ll cover the essential components and steps involved in creating a full-stack web application.

Building a Full-Stack Application with Node.js, Express, and MongoDB

1. Node.js: The Backbone of Our Application

Node.js is a runtime environment that allows us to run JavaScript on the server-side.

It’s built on Chrome’s V8 JavaScript engine and uses an event-driven, non-blocking I/O model, making it lightweight and efficient.

Node.js serves as the backbone of our application, providing the environment in which our server-side code will run.

2. Express.js: Simplifying Server-Side Development

Express.js is a minimal and flexible Node.js web application framework.

It provides a robust set of features for building web and mobile applications.

With Express.js, we can:

Set up middlewares to respond to HTTP requests.

Define routing rules.

Add additional features like template engines.

3. MongoDB: Storing Our Data

MongoDB is a document-oriented database program.

It uses JSON-like documents with optional schemas and is known for its flexibility and scalability.

We’ll use MongoDB to store our application’s data in an accessible and writable format.

Building Our Full-Stack Application: A Step-by-Step Guide

Setting Up the Environment:

Install Node.js:sudo apt install nodejs

Initialize a new Node.js project:mkdir myapp && cd myapp npm init -y

Install Express.js:npm install express

Creating the Server:

Create a basic Express server:const express = require('express'); const app = express(); const port = 3000; app.get('/', (req, res) => { res.send('Hello World!'); }); app.listen(port, () => { console.log(`Server running at http://localhost:${port}`); });

Defining Routes:

Define routes for different parts of our application:app.get('/user', (req, res) => { res.send('User Page'); });

Connecting to MongoDB:

Use Mongoose (a MongoDB object modeling tool) to connect to MongoDB and handle data storage.

Remember, this is just the beginning! Full-stack development involves frontend (client-side) work as well. You can use React, Angular, or other frontend libraries to build the user interface and connect it to your backend (Node.js and Express).

Feel free to explore more about each component and dive deeper into building your full-stack application! 😊 12

[meandertraining]

Importance of MERN Stack

What is MERN Stack?

Four essential technologies make up the full-stack JavaScript framework MERN Stack:

MongoDB: A NoSQL database system known for its flexibility and scalability, MongoDB stores data in a JSON-like format, making it ideal for handling large volumes of data.

Express.js: A minimalist web application framework for Node.js, Express.js simplifies the process of building robust and scalable web applications by providing a set of features for web and mobile applications.

React.js: Developed by Facebook, React.js is a powerful JavaScript library for building interactive user interfaces. Its component-based architecture allows developers to create reusable UI components, resulting in a more modular and maintainable codebase.

Node.js: A server-side JavaScript runtime environment, Node.js enables developers to build fast and scalable network applications. With its event-driven, non-blocking I/O model, Node.js is well-suited for building real-time web applications.

Why Choose MERN Stack?

Streamlined Development: With MERN Stack, developers can leverage the power of JavaScript across the entire development stack, from frontend to backend. This unified approach reduces development time and eliminates the need to switch between different programming languages and frameworks.

SEO-Friendly Architecture: MERN Stack's server-side rendering capabilities, coupled with its support for modern JavaScript frameworks like React.js, make it highly SEO-friendly. This ensures that web applications built with MERN Stack are easily discoverable by search engines, leading to improved search engine rankings and increased organic traffic.

Optimized Performance: MERN Stack's asynchronous, non-blocking architecture allows for seamless communication between frontend, backend, and database components, resulting in faster response times and improved performance. This translates to a smoother user experience and higher customer satisfaction.

Improved Security: In today's digital environment, security is of the highest priority. MERN Stack provides built-in security features, such as authentication and authorization mechanisms, as well as support for encryption and data validation, to ensure that web applications are protected against common security threats.

Scalability and Flexibility: Whether you're building a small-scale application or a large-scale enterprise solution, MERN Stack offers the scalability and flexibility you need to grow and adapt to changing business requirements. With its modular architecture and support for microservices, MERN Stack allows for easy scaling and maintenance of complex applications.

Getting Started with MERN Stack

Are you prepared to explore the MERN Stack world? Here is a detailed how-to for getting started:

Install Node.js: Begin by installing Node.js, which includes npm (Node Package Manager), on your local machine. Node.js will serve as the runtime environment for your server-side code.

Set Up MongoDB: Install MongoDB, a NoSQL database system, and set up a local or remote MongoDB instance to store your application data.

Create an Express.js Server: Use Express.js to create a server-side application that will handle HTTP requests and serve as the backend for your web application.

Build Your React.js Frontend: Use React.js to create a client-side application that will handle user interface interactions and communicate with the backend server.

Integrate MongoDB with Express.js: Connect your Express.js server to your MongoDB database using Mongoose, a MongoDB object modeling tool for Node.js.

Deploy Your Application: Once your application is complete, deploy it to a hosting provider of your choice to make it accessible to users worldwide.

Conclusion

MERN Stack offers a powerful and versatile framework for building modern web applications that are fast, scalable, and secure. Whether you're a seasoned developer or just getting started, MERN Stack provides the tools and resources you need to bring your ideas to life. So why wait? Start exploring the endless possibilities of MERN Stack today and unlock the potential of your web development projects with Meander Training, Meander training is a platform where you can start your web development journey, it provides industrial training with certification.

[datavalleyai]

Azure Data Engineering Tools For Data Engineers

Azure is a cloud computing platform provided by Microsoft, which presents an extensive array of data engineering tools. These tools serve to assist data engineers in constructing and upholding data systems that possess the qualities of scalability, reliability, and security. Moreover, Azure data engineering tools facilitate the creation and management of data systems that cater to the unique requirements of an organization.

In this article, we will explore nine key Azure data engineering tools that should be in every data engineer’s toolkit. Whether you’re a beginner in data engineering or aiming to enhance your skills, these Azure tools are crucial for your career development.

Microsoft Azure Databricks

Azure Databricks is a managed version of Databricks, a popular data analytics and machine learning platform. It offers one-click installation, faster workflows, and collaborative workspaces for data scientists and engineers. Azure Databricks seamlessly integrates with Azure’s computation and storage resources, making it an excellent choice for collaborative data projects.

Microsoft Azure Data Factory

Microsoft Azure Data Factory (ADF) is a fully-managed, serverless data integration tool designed to handle data at scale. It enables data engineers to acquire, analyze, and process large volumes of data efficiently. ADF supports various use cases, including data engineering, operational data integration, analytics, and data warehousing.

Microsoft Azure Stream Analytics

Azure Stream Analytics is a real-time, complex event-processing engine designed to analyze and process large volumes of fast-streaming data from various sources. It is a critical tool for data engineers dealing with real-time data analysis and processing.

Microsoft Azure Data Lake Storage

Azure Data Lake Storage provides a scalable and secure data lake solution for data scientists, developers, and analysts. It allows organizations to store data of any type and size while supporting low-latency workloads. Data engineers can take advantage of this infrastructure to build and maintain data pipelines. Azure Data Lake Storage also offers enterprise-grade security features for data collaboration.

Microsoft Azure Synapse Analytics

Azure Synapse Analytics is an integrated platform solution that combines data warehousing, data connectors, ETL pipelines, analytics tools, big data scalability, and visualization capabilities. Data engineers can efficiently process data for warehousing and analytics using Synapse Pipelines’ ETL and data integration capabilities.

Microsoft Azure Cosmos DB

Azure Cosmos DB is a fully managed and server-less distributed database service that supports multiple data models, including PostgreSQL, MongoDB, and Apache Cassandra. It offers automatic and immediate scalability, single-digit millisecond reads and writes, and high availability for NoSQL data. Azure Cosmos DB is a versatile tool for data engineers looking to develop high-performance applications.

Microsoft Azure SQL Database

Azure SQL Database is a fully managed and continually updated relational database service in the cloud. It offers native support for services like Azure Functions and Azure App Service, simplifying application development. Data engineers can use Azure SQL Database to handle real-time data ingestion tasks efficiently.

Microsoft Azure MariaDB

Azure Database for MariaDB provides seamless integration with Azure Web Apps and supports popular open-source frameworks and languages like WordPress and Drupal. It offers built-in monitoring, security, automatic backups, and patching at no additional cost.

Microsoft Azure PostgreSQL Database

Azure PostgreSQL Database is a fully managed open-source database service designed to emphasize application innovation rather than database management. It supports various open-source frameworks and languages and offers superior security, performance optimization through AI, and high uptime guarantees.

Whether you’re a novice data engineer or an experienced professional, mastering these Azure data engineering tools is essential for advancing your career in the data-driven world. As technology evolves and data continues to grow, data engineers with expertise in Azure tools are in high demand. Start your journey to becoming a proficient data engineer with these powerful Azure tools and resources.

Unlock the full potential of your data engineering career with Datavalley. As you start your journey to becoming a skilled data engineer, it’s essential to equip yourself with the right tools and knowledge. The Azure data engineering tools we’ve explored in this article are your gateway to effectively managing and using data for impactful insights and decision-making.

To take your data engineering skills to the next level and gain practical, hands-on experience with these tools, we invite you to join the courses at Datavalley. Our comprehensive data engineering courses are designed to provide you with the expertise you need to excel in the dynamic field of data engineering. Whether you’re just starting or looking to advance your career, Datavalley’s courses offer a structured learning path and real-world projects that will set you on the path to success.

Course format:

Subject: Data Engineering Classes: 200 hours of live classes Lectures: 199 lectures Projects: Collaborative projects and mini projects for each module Level: All levels Scholarship: Up to 70% scholarship on this course Interactive activities: labs, quizzes, scenario walk-throughs Placement Assistance: Resume preparation, soft skills training, interview preparation

Subject: DevOps Classes: 180+ hours of live classes Lectures: 300 lectures Projects: Collaborative projects and mini projects for each module Level: All levels Scholarship: Up to 67% scholarship on this course Interactive activities: labs, quizzes, scenario walk-throughs Placement Assistance: Resume preparation, soft skills training, interview preparation

For more details on the Data Engineering courses, visit Datavalley’s official website.

[hindintech]

You can learn NodeJS easily, Here's all you need:

1.Introduction to Node.js

• JavaScript Runtime for Server-Side Development

• Non-Blocking I/0

2.Setting Up Node.js

• Installing Node.js and NPM

• Package.json Configuration

• Node Version Manager (NVM)

3.Node.js Modules

• CommonJS Modules (require, module.exports)

• ES6 Modules (import, export)

• Built-in Modules (e.g., fs, http, events)

4.Core Concepts

• Event Loop

• Callbacks and Asynchronous Programming

• Streams and Buffers

5.Core Modules

• fs (File Svstem)

• http and https (HTTP Modules)

• events (Event Emitter)

• util (Utilities)

• os (Operating System)

• path (Path Module)

6.NPM (Node Package Manager)

• Installing Packages

• Creating and Managing package.json

• Semantic Versioning

• NPM Scripts

7.Asynchronous Programming in Node.js

• Callbacks

• Promises

• Async/Await

• Error-First Callbacks

8.Express.js Framework

• Routing

• Middleware

• Templating Engines (Pug, EJS)

• RESTful APIs

• Error Handling Middleware

9.Working with Databases

• Connecting to Databases (MongoDB, MySQL)

• Mongoose (for MongoDB)

• Sequelize (for MySQL)

• Database Migrations and Seeders

10.Authentication and Authorization

• JSON Web Tokens (JWT)

• Passport.js Middleware

• OAuth and OAuth2

11.Security

• Helmet.js (Security Middleware)

• Input Validation and Sanitization

• Secure Headers

• Cross-Origin Resource Sharing (CORS)

12.Testing and Debugging

• Unit Testing (Mocha, Chai)

• Debugging Tools (Node Inspector)

• Load Testing (Artillery, Apache Bench)

13.API Documentation

• Swagger

• API Blueprint

• Postman Documentation

14.Real-Time Applications

• WebSockets (Socket.io)

• Server-Sent Events (SSE)

• WebRTC for Video Calls

15.Performance Optimization

• Caching Strategies (in-memory, Redis)

• Load Balancing (Nginx, HAProxy)

• Profiling and Optimization Tools (Node Clinic, New Relic)

16.Deployment and Hosting

• Deploying Node.js Apps (PM2, Forever)

• Hosting Platforms (AWS, Heroku, DigitalOcean)

• Continuous Integration and Deployment-(Jenkins, Travis CI)

17.RESTful API Design

• Best Practices

• API Versioning

• HATEOAS (Hypermedia as the Engine-of Application State)

18.Middleware and Custom Modules

• Creating Custom Middleware

• Organizing Code into Modules

• Publish and Use Private NPM Packages

19.Logging

• Winston Logger

• Morgan Middleware

• Log Rotation Strategies

20.Streaming and Buffers

• Readable and Writable Streams

• Buffers

• Transform Streams

21.Error Handling and Monitoring

• Sentry and Error Tracking

• Health Checks and Monitoring Endpoints

22.Microservices Architecture

• Principles of Microservices

• Communication Patterns (REST, gRPC)

• Service Discovery and Load Balancing in Microservices

[wafaicloudcom3]

virtual machine

virtual machine

WafaiCloud – Leading Cloud and Web Hosting Solutions in Saudi Arabia

In today’s fast-paced digital landscape, businesses across Saudi Arabia are moving rapidly towards cloud technologies to achieve scalability, security, and high performance. At the forefront of this shift is WafaiCloud, a trusted Saudi-based provider offering cutting-edge solutions including Cloud Servers, Managed Databases, VPS Hosting, and Web Hosting.

Whether you're a startup, a growing e-commerce brand, or a government agency, WafaiCloud delivers reliable and cost-effective infrastructure tailored to meet your needs—fully compliant with local regulations and high-performance standards.

Why Choose WafaiCloud?

WafaiCloud is more than a hosting provider—it's a strategic partner for digital growth. Here's why businesses across Saudi Arabia trust WafaiCloud:

1. Saudi-Based Infrastructure

All our services are hosted on local data centers within the Kingdom of Saudi Arabia. This ensures faster load times, lower latency, and compliance with Saudi data sovereignty laws—making WafaiCloud the ideal partner for businesses that demand performance and privacy.

2. 24/7 Arabic Support

Our bilingual support team is available round-the-clock to assist you in Arabic or English. We understand the unique challenges of the Saudi market and provide real-time local support, not just automated responses.

3. Customizable Solutions for Every Business

From small businesses to enterprise-level organizations, WafaiCloud offers scalable cloud services that grow with your needs. Choose from our flexible plans or request a custom infrastructure package.

Core Services We Offer

1. Cloud Servers in Saudi Arabia

Experience the power of a virtualized environment with WafaiCloud’s Cloud Servers. Our cloud infrastructure is built for speed, uptime, and data security.

Fully redundant, SSD-powered infrastructure

Scale vertically or horizontally on demand

Ideal for SaaS applications, e-commerce, and business-critical operations

API and dashboard access for full control

Our cloud servers are optimized for performance and support advanced configurations such as load balancing, backups, and firewall rules.

2. Managed Database Services

WafaiCloud simplifies database management so you can focus on development and innovation. Our Managed Database services support MySQL, PostgreSQL, and MongoDB.

Fully automated backups and high availability

Zero-downtime scaling

Monitoring, patching, and security updates included

Real-time performance metrics via dashboard

Whether you are building a fintech app or an enterprise CRM, we manage the backend to ensure 99.99% uptime.

3. VPS Hosting in Saudi Arabia

Our Virtual Private Servers (VPS) provide the power of dedicated hosting at a fraction of the cost. Perfect for developers, small businesses, and growing websites.

Root access with full customization

SSD storage and high-performance CPUs

Affordable monthly and annual plans

Ideal for hosting websites, game servers, or development environments

Hosted in local Saudi data centers, our VPS services ensure fast response times for your target audience.

4. Reliable Web Hosting

WafaiCloud’s Web Hosting solutions are ideal for bloggers, entrepreneurs, and small businesses launching their first website.

Easy-to-use cPanel access

Free SSL certificates

One-click WordPress installation

Daily backups and malware protection

Your website deserves to be online 24/7. With 99.9% guaranteed uptime and lightning-fast load speeds, we help you stay competitive in the Saudi digital space.

Built for Saudi Businesses

At WafaiCloud, we understand the needs of Saudi entrepreneurs, tech startups, e-commerce stores, and government clients. That’s why we offer:

Local billing in SAR (Saudi Riyals)

Compliance with CITC and local regulations

Cloud-native architecture optimized for Arabic content and right-to-left (RTL) websites

We make cloud adoption simple, affordable, and reliable—without compromising on quality.

SEO, Speed & Security: All in One Package

Search engine visibility begins with performance. Our hosting services are optimized for SEO and Core Web Vitals, including:

Fast server response time (TTFB)

Secure HTTPS encryption

100% mobile-friendly hosting

Integrated caching and CDN options

Google prioritizes fast, secure websites—so should you.

Getting Started with WafaiCloud

Starting your digital journey is easy with WafaiCloud. Our onboarding team will help you:

Migrate your website or database with zero downtime

Choose the right hosting package

Secure your site with SSL and DDoS protection

Monitor and scale resources from a centralized dashboard

Whether you’re launching a personal blog or a high-traffic portal, WafaiCloud ensures peace of mind with unmatched technical support.

Trusted by Developers & Businesses in Saudi Arabia

Our clients include leading tech startups, educational institutions, and growing e-commerce stores in Riyadh, Jeddah, Dammam, and beyond. They trust us because we offer:

Transparent pricing

No hidden fees

Flexible billing

Local experience and knowledge

Ready to Grow with WafaiCloud?

Make the switch to a faster, safer, and locally compliant cloud provider. WafaiCloud is here to help your business grow in the digital age with expert infrastructure, real-time support, and scalable technology..

Know more about - virtual machine

[learntechsolution]

Adding authentication to Django REST Framework (DRF) views involves configuring authentication classes in your DRF settings. DRF provides a variety of authentication classes that you can choose from based on your project's requirements. Here's a general guide on how to add authentication to DRF views

[learn-techsolution]

Adding authentication to Django REST Framework (DRF) views involves configuring authentication classes in your DRF settings. DRF provides a variety of authentication classes that you can choose from based on your project's requirements. Here's a general guide on how to add authentication to DRF views

[learntech-solution]

Adding authentication to Django REST Framework (DRF) views involves configuring authentication classes in your DRF settings. DRF provides a variety of authentication classes that you can choose from based on your project's requirements. Here's a general guide on how to add authentication to DRF views

[learn-tech-solution]

Adding authentication to Django REST Framework (DRF) views involves configuring authentication classes in your DRF settings. DRF provides a variety of authentication classes that you can choose from based on your project's requirements. Here's a general guide on how to add authentication to DRF views