How do you structure a scalable Express js project with multiple route modules

Question

tell me via and example and code How do you structure a scalable Express.js project with multiple route modules?

Answer 1

Implementation Steps:

Initialize Express App (app.js)

const express = require("express");

const userRoutes = require("./routes/user.routes");

const app = express();

app.use(express.json());

app.use("/api/users", userRoutes); // Use modular routes

module.exports = app;


Create Route Modules (routes/user.routes.js)

const express = require("express");

const { getUsers } = require("../controllers/user.controller");

const router = express.Router();

router.get("/", getUsers);

module.exports = router;


Define Controllers (controllers/user.controller.js)

exports.getUsers = (req, res) => {

    res.json({ message: "List of users" });

};

Start Server (server.js)

const app = require("./app");

const PORT = process.env.PORT || 5000;

app.listen(PORT, () => {

    console.log(`Server running on port ${PORT}`);

});