NodeJS and ExpressJS: Using Twitter authentication via Passport

app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var passport = require('passport');
var Strategy = require('passport-twitter').Strategy;
var session = require('express-session');

passport.use(new Strategy({
    consumerKey: 'KKBIawUSE_OWNPJwM',
    consumerSecret: 'BJCahJjoUSE_OWNTStPFAj',
    callbackURL: 'http://localhost:3000/twitter/return'
}, function(token, tokenSecret, profile, callback) {
    return callback(null, profile);
}));

passport.serializeUser(function(user, callback) {
    callback(null, user);
})

passport.deserializeUser(function(obj, callback) {
    callback(null, obj);
})

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(session({secret: 'whatever', resave: true, saveUninitialized: true}))

app.use(passport.initialize())
app.use(passport.session())

// 

app.get('/', function(req, res) {
    res.render('index', {user: req.user})
})

app.get('/twitter/login', passport.authenticate('twitter'))

app.get('/twitter/return', passport.authenticate('twitter', {
    failureRedirect: '/'
}), function(req, res) {
    res.redirect('/')
})

module.exports = app;$ 

index.jade

extends layout

block content
  if user
    p Hello #{user.username}
    img(src=user.photos[0].value)
  else
    a(href='/twitter/login') Login using twitter!