using System;

using RestSharp;

public class Program

{

    public static string sorgula(string barkod_no)

        {

            string result;

            try

            {

                RestClient restClient = new RestClient("https://pttws.ptt.gov.tr");

                restClient.UserAgent = "com.pttxd";

                RestRequest restRequest = new RestRequest("/cepptt/mssnvrPttaceaemaa/gonderitakipvepostakod/gonderisorguYurticiveYurtDisi");

                restRequest.AddParameter("kaynak", "ANDROID");

                restRequest.AddParameter("barkod", barkod_no);

                result = restClient.Post(restRequest).Content;

            }

            catch (Exception hata)

            {

                Console.WriteLine(hata.Message);

                result = string.Empty;

            }

            return result;

        }

    public static void Main()

    {

        Console.WriteLine(sorgula("4004383642853"));

            Console.ReadLine();

    }

}