app.js

var configuration = {
  domain: 'localhost',
  port: 3000,
  keys: require('./keys.js')
}

var express = require('express');
var app = express();
app.listen(configuration.port);
var passport = require('passport');
var twitter_strategy = require('passport-twitter').Strategy;
var GLOBAL_USER;
var request = require('request');

passport.use(
  new twitter_strategy({
    consumerKey: configuration.keys.consumer_key,
    consumerSecret: configuration.keys.consumer_secret,
    callbackURL: 'http://'+configuration.domain+':'+configuration.port+'/auth/twitter/callback'
  },
  function(token, tokenSecret, profile, done) {
    GLOBAL_USER = {
      token: token,
      tokenSecret: tokenSecret,
      profile: profile
    }
    done(null, GLOBAL_USER);
  }
));
passport.serializeUser(function(user, done) {
  done(null, user);
});
passport.deserializeUser(function(obj, done) {
  done(null, obj);
});

app.configure(function() {
  app.use(express.static('public'));
  app.use(express.cookieParser());
  app.use(express.bodyParser());
  app.use(express.session({ secret: 'keyboard cat' }));
  app.use(passport.initialize());
  app.use(passport.session());
  app.use(app.router);
  app.get('/auth/twitter', passport.authenticate('twitter'));
  app.get('/auth/twitter/callback', passport.authenticate('twitter', { successReturnToOrRedirect: '/view-retweets', failureRedirect: '/' }));
  app.get('/view-retweets', function (req, res, next){
    var options = {
      url: 'https://api.twitter.com/1.1/statuses/retweets_of_me.json', 
      oauth: {
        consumer_secret: configuration.keys.consumer_secret,
        consumer_key: configuration.keys.consumer_key,
        token: GLOBAL_USER.token,
        token_secret: GLOBAL_USER.tokenSecret
      },
      json: true
    };

    request(options, function (err, resp, body) {
      if (err) return res.send(err.stack, 500);
      res.send(body, 200);
    });

  });
});