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Absolutely ✅ — you can and often should use a class with Express routes in Node.js.
It helps you organize your logic cleanly, especially for larger apps.
Let’s go through a few ways to do this 👇
🧩 1. Basic Example: Class + Route
Here’s a small example where a class handles all user-related logic, and the routes simply call the class methods.
// controllers/UserController.js
class UserController {
  getAll(req, res) {
    res.send('List of all users');
  }

getById(req, res) {
    const { id } = req.params;
    res.send(`User ID: ${id}`);
  }

create(req, res) {
    res.send('User created!');
  }
}

module.exports = new UserController();

Then use it in your route file:
// routes/users.js
const express = require('express');
const router = express.Router();
const userController = require('../controllers/UserController');

router.get('/', userController.getAll);
router.get('/:id', userController.getById);
router.post('/', userController.create);

module.exports = router;
In your main app:
// app.js
const express = require('express');
const app = express();

const usersRouter = require('./routes/users');
app.use('/users', usersRouter);

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

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