ed's node app

twat.js

(function() {
  "use strict";
  var http = require('http')
    , url = require('url')
    , cached = {}
    ;

  function server(req, res) {
    var now = Date.now()
      , twitter = url.parse(req.url).pathname.slice(1)
      ;

    // deal with favicon etc
    if(twitter == 'favicon.ico' || twitter == '') { 
      res.writeHead(501);
      res.end();
      return; 
    }

    if(typeof cached[twitter] != 'undefined' 
    && cached[twitter].grabbed > now - 600) {
      res.writeHead(200, {'Content-Type': 'application/json'});
      res.end(cached[twitter].json);
      console.log(now + ' [H] ' + twitter);
      return;
    }
    
    // get the json from twitter api
    http.get({  host: 'api.twitter.com'
              , port: 80
              , path: '/1/statuses/user_timeline/' + twitter + '.json'
             }, handleTwats);

    function handleTwats(twSock) {
      var twat = {grabbed: now, json: ''}
        ;

      twSock.on('data', function(chunk) {
        twat.json += chunk;
      });

      twSock.on('end', function() {
        cached[twitter] = twat;
        res.writeHead(200, {'Content-Type': 'application/json'});
        res.end(twat.json);
        console.log(now + ' [m] ' + twitter);
      });
    }
  }

  http.createServer(server).listen(10001);
  console.log('Twitter proxy running at on port 10001');
}());