Node.js Backend Project

Setup

1. Initialize a new Node.js project: npm init -y

2. Install Express.js: npm install express

3. Create app.js with the following content:

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

   app.get('/', (req, res) => { res.send('Hello World!'); });

   app.listen(port, () => { console.log(Example app listening at http://localhost:${port}); });

4. Run the server: node app.js