Building REST APIs with Node.js Node.js and Express make it easy to build powerful REST APIs. Let's explore the fundamentals. Setting Up Express First, install Express and set up a basic server: const express = require('express'); const app = express(); const PORT = process.env.PORT || 3000; // Middleware app.use(express.json()); app.use(express.urlencoded({ extended: true })); // Basic route app.get('/', (req, res) => { res.json({ message: 'Welcome to our API!' }); }); app.listen(PORT, () ...