How do you use two or more route.js files in Express Router in Node?

Question

I am not running into any errors but I am wondering if this is the correct way to use two or more route.js files using express.Router. Am I using module.exports = router correctly as they are in two separate files, or is there a different way?

app.js

const express = require("express");

const api = require("./routes/tracking.route");
const user = require("./routes/user.route");

const app = express();

app.use("/api", api);
app.use("/user", user);

tracking.route.js

const express = require("express");
const router = express.Router();

const tracking_controller = require("../controllers/tracking.controller");

router.get("/list", tracking_controller.tracking_list);

module.exports = router;

user.route.js

const express = require("express");
const router = express.Router();

const User = require("../models/user.model");

router.post("/signup", ...");

module.exports = router;