     }
 
     /**
-     Perform POST request with a JSON payload and expect JSON result in response.
+     Perform POST request with a JSON payload in the body and expect JSON result in response.
      
      - note: It is guaranteed that exactly one of the success or failure closures will be invoked after this method is called regardless of whether a valid NSURLSessionDataTask is returned.
 

    
    //MARK: - Utility

    private func httpDataTask(url:NSURL,
                      method:String,
                      contentType:String?,

        
        return dataTask
    }

    ///Utility method to print response and error objects for debugging purposes
    private func printResult(response:NSHTTPURLResponse?, error:NSError?) {
        if let response = response {
            print("httpDataTask response: \(response)")
        }

        if let error = error {
            print("httpDataTask error: \(error.localizedDescription)")
        }
    }
}