NodeJS Twitter API v1.1 Proxy

tweets.js

var util    = require('util'),
    express = require('express'),
    twitter = require('mtwitter'),
    nconf   = require('nconf'),
    cache   = require('memory-cache');

var port = process.env.PORT || 5000

app = express();

nconf.argv().env().file({ file: 'config.json' });

var twit = new twitter({
  consumer_key: process.env.CONSUMER_KEY || nconf.get('CONSUMER_KEY'),
  consumer_secret: process.env.CONSUMER_SECRET || nconf.get('CONSUMER_SECRET'),
  application_only: true
});

app.get('/tweets', function(req, res) {
  if(cache.get('tweets')) {
    res.jsonp(cache.get('tweets'));
  } else {
    twit.get('/favorites/list', { screen_name: 'divshot', count: 50 }, function(err, data) {
        if(err) {
          console.log(err.toString());
          res.send('An error occurred. Please try again later.', 400);
        } else {
          // Cache for 1 hour
          cache.put('tweets', data, 3600000);
          res.jsonp(cache.get('tweets'));
        }
    });
  }
});

app.listen(port);
console.log('Started server on: ' + port);