Sample Node.js code for connecting to Redis Service in CloudFoundry

gistfile1.js

require.paths.unshift('./node_modules')
var http = require('http');
var fs = require('fs');
var redis = require("redis");
var util = require('util');

var server = http.createServer(function (request, response) {

  // Redis local settings, overridden below if we're running in CloudFoundry
  var redisPort = 6379;
  var redisHost = '127.0.0.1';
  var redisPassword = '';

  if (process.env.VCAP_SERVICES) {      
    var vcapServices = JSON.parse(process.env.VCAP_SERVICES);
    var cfRedis = vcapServices['redis-2.2'][0];  
    redisHost = cfRedis.credentials.hostname;
    redisPort = cfRedis.credentials.port;
    redisPassword = cfRedis.credentials.password;
  }

  response.writeHead(200, {"Content-Type": "text/plain"});

  var client = redis.createClient(redisPort, redisHost);
  if (process.env.VCAP_SERVICES) {
    client.auth(redisPassword);
  }

  client.on("connect", function () {
    if (process.env.VCAP_SERVICES) {      
      client.auth(redisPassword, function(err, res) {
        if (err) {
          response.end("err: " + err);
        }
      });
    }
  });

  client.on("error", function (err) {
    response.end("ERROR: " + err);
  });

  client.on("ready", function (err) {
    if (err) {
      response.end("READY: err " + err);
    }
    client.get("time", function(err, reply) {
      var t = reply; console.log(reply);
      if (reply == undefined || reply == "") {
        t = "Cached time: " + Date.now();
        client.set('time', t, function (err, reply) {});
      }
          
      client.quit();        
      response.end("Time: " + t);
    });
  });

});

server.listen(process.env.VCAP_APP_PORT ||8001);
console.log("Server running at http://127.0.0.1:8001/");