[node.js] How to include route handlers in multiple files in Express?

index.js

const express = require("express");
const app = express();
const http = require('http');
const server = http.createServer(app).listen(3000);
const router = (global.router = (express.Router()));
app.use('/books', require('./routes/books'))
app.use('/users', require('./routes/users'))
app.use(router);

routes/users.js

const router = global.router
router.get('/', (req, res) => {
    res.jsonp({name: 'John Smith'})
}

module.exports = router

routes/books.js

const router = global.router
router.get('/', (req, res) => {
    res.jsonp({name: 'Dreams from My Father by Barack Obama'})
}

module.exports = router

if you have your server running local (http://localhost:3000) then

// Users
curl --request GET 'localhost:3000/users' => {name: 'John Smith'}

// Books
curl --request GET 'localhost:3000/users' => {name: 'Dreams from My Father by Barack Obama'}

Examples related to node.js

Hide Signs that Meteor.js was Used Querying date field in MongoDB with Mongoose SyntaxError: Cannot use import statement outside a module Server Discovery And Monitoring engine is deprecated How to fix ReferenceError: primordials is not defined in node UnhandledPromiseRejectionWarning: This error originated either by throwing inside of an async function without a catch block dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib error running php after installing node with brew on Mac internal/modules/cjs/loader.js:582 throw err DeprecationWarning: Buffer() is deprecated due to security and usability issues when I move my script to another server Please run `npm cache clean`

Examples related to express

UnhandledPromiseRejectionWarning: This error originated either by throwing inside of an async function without a catch block jwt check if token expired Avoid "current URL string parser is deprecated" warning by setting useNewUrlParser to true MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017] npm notice created a lockfile as package-lock.json. You should commit this file Make Axios send cookies in its requests automatically What does body-parser do with express? SyntaxError: Unexpected token function - Async Await Nodejs Route.get() requires callback functions but got a "object Undefined" How to redirect to another page in node.js