Node.js & Express

Node.js Basics

Node.js allows JavaScript to run on the server-side, enabling full-stack JavaScript development.

Key Topics

1. Core Node.js Features

• Event-driven architecture
• Non-blocking I/O
• CommonJS modules
• NPM package management

2. File System Operations

• Reading and writing files
• Working with directories
• Streaming data

3. HTTP Servers

• Creating basic HTTP servers
• Routing and middleware
• Error handling

Express Framework

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

Express Features

• Routing system
• Middleware support
• Template engine integration
• Error handling
• Security best practices

---

Project: Building a REST API

Created a complete REST API with:

• User authentication
• CRUD operations
• Data validation
• Error handling
• RESTful endpoints

Key Learnings

• RESTful design principles
• MVC pattern implementation
• Security considerations
• Performance optimization