Building RESTful APIs with Express.js Framework

Express.js REST API Scaffolding

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

app.use(express.json()); // Built-in JSON body parser

const courses = [
    { id: 1, title: 'Node.js Masterclass', is_free: true }
];

app.get('/api/courses', (req, res) => {
    res.status(200).json(courses);
});

app.post('/api/courses', (req, res) => {
    const newCourse = { id: courses.length + 1, ...req.body };
    courses.push(newCourse);
    res.status(201).json(newCourse);
});

app.listen(3000, () => console.log('Server running on port 3000'));