AddonLoader.js

var async = require('async');
var fs = require('fs');
var initArr = [];

exports.init = function(directory, context, callback){
  var files = fs.readdirSync(directory);
  console.log('Files Readed:' + files);
  files.forEach(function(element) {
    var module = require(directory + element);
    initArr.push(function(cb) {
      module.init(context, function (err, result) {cb(null, err||result)});
    });
  });

  async.series(initArr, function(err, result) {
      //never throws error
      console.log('Listeners Addons Loaded:');
      console.dir(result);
      callback();
  });
};