Google Analytics Realtime API retrieval

gistfile1.js

var http = require('http');
var https = require('https');
var uri = require('url');
 
module['exports'] = function garealtime (hook) {
   var auth = hook.params.authorization
   
   run = function() {
    var url = "https://www.googleapis.com/analytics/v3/data/realtime?ids="+hook.params.ga+"&metrics=rt%3AactiveUsers&key=" + hook.params.key
    options = uri.parse(url)
    options.headers = {
     "Authorization": auth
    }
    https.get(options, function(res){
      var body = '';
      res.on('data', function (chunk) {
        body += chunk;
      });
      res.on('end', function () {
        hook.debug("recieved results");
        data = JSON.parse(body);
        var users = -1
        if(typeof(data.totalsForAllResults) !== 'undefined'){
         users = data.totalsForAllResults['rt:activeUsers'];
        }else {
         hook.debug(body)
        }
        hook.debug(users);
        
        //hook.debug('Summe ist:' + sum);
        hook.res.end('{"value": ' + users + '}');
      });
   }).on('error', function (){
     hook.res.end('error calling google analytics');
   });
  };
 
  if(auth == hook.env.pwd) {
    var tokenHook = hook.open('http://hook.io/piffie/GoogleRefreshToken?pwd='+auth);
    var body = ''
    tokenHook.on('data', function(chunk){
      body += chunk;
    });
    
    tokenHook.on('end', function() {
     auth = "Bearer " + JSON.parse(body).token
     run();
    });
  } else {
   run();
  }
 
 
  //hook.res.end(JSON.stringify(hook.params, true, 2));
 
};
 
module['exports'].schema = {
  "key": {
    "type": "string"
  },
  "ga": {
    "type": "string"
  },
  "authorization": {
    "type": "string"
  },
};