DataContractJsonSerializer ser =
                new DataContractJsonSerializer(typeof(string));
            MemoryStream mem = new MemoryStream();
            ser.WriteObject(mem, "test");
            ser.WriteObject(mem, "pass");
            string data =
                Encoding.UTF8.GetString(mem.ToArray(), 0, (int)mem.Length);
            WebClient webClient = new WebClient();
            webClient.Headers["Content-type"] = "application/json";
            webClient.Encoding = Encoding.UTF8;
            webClient.UploadString("http://85.187.80.91:9090/Login", "POST", data);
            Console.WriteLine("Order placed successfully...");