server.js

//
// # SimpleServer
//
// A simple chat server using Socket.IO, Express, and Async.
//
var http = require('http');
var path = require('path');

var async = require('async');
var request = require("request");
var express = require('express');
var session = require("express-session");
var bodyParser = require("body-parser");
var levels = require("./levels");

var vorbis = require("vorbis");
var ogg = require("ogg");
var lame = require("lame"); // for MP3
var wav = require("wav"); // for WAVE files
//

var redis = require("redis");

// ## SimpleServer `SimpleServer(obj)`
//
// Creates a new instance of SimpleServer with the following options:
//  * `port` - The HTTP port to listen on. If `process.env.PORT` is set, _it overrides this value_.
//
var router = express();

router.use(express.static(path.resolve(__dirname, "public")));
router.use(session({secret:"Triple Secret"}));
router.use(bodyParser.json());
router.use(bodyParser.urlencoded());

var API_KEY = "009057c6287f8c80a49053c3c8c2da500b6abb3f9a925a737";

router.get("/:id", function(req, res) {
  var url = "http://api.wordnik.com/v4/words.json/randomWord?api_key=" + API_KEY +"&";
  var level = levels[req.params.id];
  for(var key in level) {
    url += key + "=" + level[key] + "&";
  }
  request.get(url, function(err, resp, body) {
    body = JSON.parse(body).word;
    if(err) {
      throw err;
    } else if(req.query.type === "text") {
      console.log(body);
      res.end(body);
    } else {
      var mp3 = request.get(
        "http://translate.google.com/translate_tts?ie=UTF-8&tl=en&q=" + body);
      if(req.query.type === "mp3") {
        mp3.pipe(res);
      } else if(req.query.type === "ogg") {
        var mp3Decoder = new lame.Decoder();
        mp3.pipe(mp3Decoder);

        mp3Decoder.on("format", function() {
          var vorbisEncoder = new vorbis.Encoder();
          mp3Decoder.pipe(vorbisEncoder);

          var oggEncoder = new ogg.Encoder();
          vorbisEncoder.pipe(oggEncoder.stream());
   
          oggEncoder.pipe(res);
        });
      } else if(req.query.type === "wav") {
        mp3
          .pipe(lame.Decoder())
          .pipe(wav.Writer())
          .pipe(res);
      }
    }
  });
});

var client = redis.createClient(16181, "pub-redis-16181.us-east-1-2.1.ec2.garantiadata.com");

router.get("/leaderboard/:board?", function(req, res) {
  client.zrange("global" || req.params.board, 0, req.query.end || 10, function(err, keys) {
    res.end(keys);
  });
});

router.post("/leaderboard/:board", function(req, res) {
  client.zadd(req.params.board, req.body.score, req.body.name, function(err) {
    if(err) {
      res.end(err);
    }
  });
});

http.createServer(router).listen(process.env.PORT, process.env.IP);