Node.js server to turn twitter favorites into an RSS feed. Twitter api v1.1 is killing this, so I made my own and put it on heroku.

app.coffee

http = require 'http'
twitter = require 'ntwitter'
express = require 'express'
moment = require 'moment'

app = express()

client = new twitter
  consumer_key: ''
  consumer_secret: ''
  access_token_key: ''
  access_token_secret: ''

app.get '/favorites', (req, res) ->
  client.get '/favorites/list.json',
    include_entities: 1
    count: 20
  , (err, data) ->
    output = """
    <?xml version="1.0" encoding="UTF-8"?>
    <rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:twitter="http://api.twitter.com" version="2.0" xmlns:georss="http://www.georss.org/georss">
      <channel>
        <title>Twitter / Favorites from tedkulp</title>
        <link>http://twitter.com/tedkulp/favorites</link>
        <atom:link type="application/rss+xml" href="http://api.twitter.com/1/favorites.rss?screen_name=tedkulp" rel="self"/>
        <description>Twitter updates favorited by Ted Kulp / tedkulp.</description>
        <language>en-us</language>
        <ttl>40</ttl>

    """

    data.forEach (tweet) ->
      output += """
      <item>
        <title>#{tweet.text}</title>
        <description>#{tweet.text}</description>
        <pubDate>#{moment(tweet.created_at).utc().format('ddd, DD MMM YYYY HH:mm:ss ZZ')}</pubDate>
        <guid>http://twitter.com/#{tweet.user.screen_name}/status/#{tweet.id_str}</guid>
        <link>http://twitter.com/#{tweet.user.screen_name}/status/#{tweet.id_str}</link>
        <author>#{tweet.user.screen_name}</author>
      </item>

      """

    output += """
      </channel>
    </rss>
    """

    res.setHeader 'Content-Type', 'application/rss+xml; charset=utf-8'
    res.send output

port = process.env.PORT || 4000
app.listen port
console.log "Started on port #{port}"

package.json

{
  "name": "feedme",
  "version": "0.0.1",
  "author": "Ted Kulp <ted@tedkulp.com>",
  "engines": {
    "node": "0.8.x",
    "npm":  "1.1.x"
  },
  "dependencies": {
    "coffee-script": "1.4.0",
    "express": "3.x",
    "moment": "1.x",
    "ntwitter": "0.x"
  }
}

Procfile

web: coffee app.coffee

Pretty cool! Is there a way to generate the feed when there's a new tweet and "cache" the file so that it's much faster to load?