How do I set up routing in Express.js?

How do I set up routing in Express.js?

To set up routing in Express.js, you need to use the express.Router() method. This allows you to create modular route handlers.

Can you show me a simple example?

Sure! Here's a basic example:

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

const router = express.Router();

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

app.use('/api', router);

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

What if I want to handle different HTTP methods?

You can use methods like router.post(), router.put(), and router.delete() for handling different HTTP methods on the same route.

Is it possible to use route parameters?

Yes, you can define route parameters using a colon. For example, router.get('/user/:id', (req, res) => {...}); allows you to access the id parameter.