Returning a object from call back function, so that a wrapping function can return the same object in node.js/express

I am trying to return an object that I am constructing from data obtained from a call to a third party API. I am using the Request(https://github.com/mikeal/request) module to accomplish the same.

However, I want to return this object from the callback function.

My request call is a part of a javascript function and I want this outer function to be able to return the newly constructed object. I am facing problem due to non-blocking nature of node.js as whenever I try to return object from the outer function, it returns an empty object because the callback function has not yet contructed the object.

How can I achieve this?

function getData(url){

  var myWeatherData = new Object();
  var data;

  request(url, function (error, response, body) {

    if (!error && response.statusCode == 200) {

      data = JSON.parse(body);

      myWeatherData.locationName = data.current_observation.display_location.full;
      myWeatherData.weather = data.current_observation.weather; 
      myWeatherData.temperature_string = data.current_observation.temperature_string;
      myWeatherData.relative_humidity = data.current_observation.relative_humidity;
      myWeatherData.wind_string = data.current_observation.wind_string;
      myWeatherData.feelslike_string = data.current_observation.feelslike_string;

    }
    return myWeatherData; // THIS IS A RETURN FROM CALL BACK 
  });   
// return myWeatherDataArr; -- THIS RETURNS AN EMPTY 
};

Copyright Notice：Content Author:「Abk」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/25510410/returning-a-object-from-call-back-function-so-that-a-wrapping-function-can-retu