Node.js

The Node.js for Web Development course aims to provide learners with a comprehensive understanding of Node.js, from foundational concepts to advanced techniques.
This course will equip participants with the skills needed to build scalable, high-performance web applications using Node.js.
Topics include setting up the Node.js environment, working with core modules and file systems, asynchronous programming, and using Express.js for web frameworks.
Additionally, the course covers database integration, authentication, real-time communication with Socket.io, and deployment best practices.
By the end of the course, participants will be proficient in creating, securing, and deploying Node.js applications.
It offers comprehensive skill development in Node.js, Express.js, and real-time application development, equipping participants with practical knowledge essential for modern web development.
Learners will gain hands-on experience in building, deploying, and securing web applications using industry- standard tools and practices.
This foundational expertise will enhance career opportunities in backend development roles.
Through engaging in real-world projects, such as creating RESTful APIs and integrating databases, participants will apply their skills effectively.
Additionally, the course emphasizes best practices for code organization, performance optimization, and ensuring secure, scalable applications.

Participants should have a basic understanding of JavaScript and web development concepts.
Familiarity with HTML and CSS, as well as basic programming principles such as variables, loops, and functions, will be beneficial.
Prior experience with server-side programming or other web frameworks is helpful but not required.
The course will start with a brief introduction to Node.js for those new to the platform.

Overview of Node.js
- What is Node.js and its role in web development
- Understanding the Node.js runtime environment
- The event-driven, non-blocking I/O model
Setting Up the Environment
- Installing Node.js and npm (Node Package Manager)
- Introduction to Node.js modules and package management
- Creating your first Node.js application

Node.js Core Modules
o Working with the fs (file system) module
o Using the http module to create a basic web server
o Understanding the path module for file and directory operations
File System Operations
o Reading and writing files asynchronously
o Creating, deleting, and renaming files and directories
o Working with streams for efficient file handling

Asynchronous JavaScript
o Callbacks, Promises, and async/await in Node.js
o Handling asynchronous operations with event emitters
o Understanding the Event Loop and its role in Node.js
Error Handling
o Managing errors in asynchronous code
o Using try-catch for synchronous and asynchronous code
o Creating custom error handling middleware

Introduction to Express.js
o Setting up an Express.js project
o Routing in Express: handling GET, POST, PUT, DELETE requests
o Working with middleware in Express.js
Building RESTful APIs
o Creating RESTful endpoints
o Managing request and response objects
o Implementing route parameters and query strings

Connecting to Databases
o Working with MongoDB using Mongoose
o Introduction to SQL databases with MySQL/PostgreSQL
o Connecting Node.js to databases and performing CRUD operations
Data Modeling
o Designing and implementing schemas with Mongoose
o Working with relational databases and ORMs (Sequelize)
o Handling database migrations and validations

User Authentication
o Implementing authentication with Passport.js
o Using JWT (JSON Web Tokens) for secure authentication
o Managing user sessions and cookies
Security Best Practices
o Preventing common security vulnerabilities (e.g., SQL injection, XSS)
o Using environment variables to manage sensitive data
o Implementing HTTPS and secure headers

Introduction to WebSockets
o Understanding WebSocket communication in Node.js
o Setting up a real-time chat application using Socket.io
o Broadcasting messages and handling real-time events
Advanced Socket.io
o Implementing rooms and namespaces
o Handling disconnections and reconnections
o Integrating Socket.io with Express.js

Deploying Node.js Applications
o Deploying on popular platforms (Heroku, AWS, DigitalOcean)
o Setting up environment variables for production
o Monitoring and managing Node.js applications with PM2
Node.js Best Practices
o Writing clean and maintainable code
o Performance optimization techniques
o Logging and debugging in Node.js

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