Building RESTful APIs with Express.js
Express.js remains one of the most popular Node.js frameworks for building web APIs. Here's a modern approach.Project Setup
mkdir my-api && cd my-api
npm init -y
npm install express cors helmet
Basic Server
const express = require('express');
const app = express();
app.use(express.json());
app.use(cors());
app.get('/api/health', (req, res) => {
res.json({ status: 'ok' });
});
app.listen(3000);
Structuring Your Application
Organize your code by feature, not by technical role:src/
├── routes/ # Route definitions
├── middleware/ # Custom middleware
├── models/ # Data models
└── services/ # Business logic
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