Express REST API Skill

Master building robust, scalable REST APIs with Express.js, the de-facto standard for Node.js web frameworks.

Quick Start

Build a basic Express API in 5 steps:

1. Setup Express - npm install express
2. Create Routes - Define GET, POST, PUT, DELETE endpoints
3. Add Middleware - JSON parsing, CORS, security headers
4. Handle Errors - Centralized error handling
5. Test & Deploy - Use Postman/Insomnia, deploy to cloud

Core Concepts

1. Express Application Structure

const express = require('express');
const app = express();