How to show last 20 tweets with twitter api on express.js with node.js?

I'll try to keep it short, here we go:

Install express-generator module first: npm install -g express-generator

Run express --hbs (you can choose Jade or anything else, but I prefer Handlebars, so I'll continue with that)

Go to the folder and install dependencies: npm install

Install twitter module: npm install --save twitter

Go to Twitter's Application Management Page and create your app. Get the necessary keys: consumer_key, consumer_secret, access_token_key, and access_token_secret.

After this point, I'd like to share the actual codes instead of explaining what to do

Here's /routes/index.js file:

var express = require('express');var Twitter = require('twitter');var router = express.Router(); var client = new Twitter({  consumer_key: 'XXX',  consumer_secret: 'XXX',  access_token_key: 'XXX',  access_token_secret: 'XXX'});router.get('/', function(req, res, next) {  // https://dev.twitter.com/rest/reference/get/statuses/user_timeline  client.get('statuses/user_timeline', { screen_name: 'nodejs', count: 20 }, function(error, tweets, response) {    if (!error) {      res.status(200).render('index', { title: 'Express', tweets: tweets });    }    else {      res.status(500).json({ error: error });    }  });});module.exports = router;

And here's /views/index.hbs file:

<ul>  {{#each tweets }}  <li>{{ this.text }}</li>  {{/each }}</ul>

When you save them all and run npm start, you can see the results at http://localhost:3000