parse cloud function for validating itunes sandbox receipt data

gistfile1.js

Parse.Cloud.define("verifyReceipt", function(request, response) {
  
  var validationParams = {"receipt-data": request.params.receipt }
	
	Parse.Cloud.httpRequest({
    method: 'POST',
    headers: {
      'Content-Type': 'application/json;charset=utf-8',
    },
  	url: 'https://sandbox.itunes.apple.com/verifyReceipt',
    body: validationParams,
    success: function(httpResponse) {
      response.success(httpResponse.text);
    },
    error: function(httpResponse) {
      response.error('Request failed with response code ' + httpResponse.status);
    }
  }); 

});