How do I create REST APIs with JavaScript

Creating REST APIs with JavaScript can be accomplished using various frameworks and libraries. Below is a basic example of how to create a simple REST API using Node.js with the Express framework:


        const express = require('express');
        const app = express();
        const port = 3000;

        app.use(express.json());

        // Sample data
        let users = [
            { id: 1, name: 'John Doe' },
            { id: 2, name: 'Jane Doe' }
        ];

        // GET all users
        app.get('/users', (req, res) => {
            res.json(users);
        });

        // GET a single user by ID
        app.get('/users/:id', (req, res) => {
            const user = users.find(u => u.id === parseInt(req.params.id));
            if (!user) return res.status(404).send('User not found.');
            res.json(user);
        });

        // POST a new user
        app.post('/users', (req, res) => {
            const newUser = {
                id: users.length + 1,
                name: req.body.name
            };
            users.push(newUser);
            res.status(201).json(newUser);
        });

        // Start the server
        app.listen(port, () => {
            console.log(`Server running at http://localhost:${port}`);
        });

How do I create REST APIs with JavaScript

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How do I create REST APIs with JavaScript

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