mundo.js

// module
exports.makePaulo = function (cb) {
  var ret = {valid: false, data = ''};
  request('http://blaablablablbla', function(err, res, body){
    ret.valid = true;
    return ret;
  });
};


//using module

var mundo = require('mundo');

var paulo = mundo.makePaulo();

if(paulo.valid)
  console.log(paulo.data); //should be a statusCode like 200 but I got undefined  
else
  console.log('No data yet!');