private static async Task <string> iTopAPIWorker(iTopAPIMessage Message)
        {
            string res = null;


            //HttpResponseMessage res = new HttpResponseMessage();
            using (var client = new HttpClient())
                using (var request = new HttpRequestMessage(HttpMethod.Post, Message.EndPoint))
                {
                    string json = JsonConvert.SerializeObject(Message.Create);
                    using (HttpContent stringContent = new StringContent(json, Encoding.UTF8, "application/json"))
                    {
                        request.Content = stringContent;
                        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Message.Credentials);
                        stringContent.Headers.ContentType          = new MediaTypeHeaderValue("application/json");
                        using (var response = await client
                                              .SendAsync(request, HttpCompletionOption.ResponseHeadersRead)
                                              .ConfigureAwait(false))
                        {
                            response.EnsureSuccessStatusCode();
                            res = response.Content.ReadAsStringAsync().Result;
                        }
                    }
                }
            return(res);
        }
        public async Task <iTopCreateResponse> CreateInsidentAsync(iTopCreateRequest message)
        {
            iTopAPIMessage msg = new iTopAPIMessage();

            msg.EndPoint = $"{ItopAPIOptions.Endpoint}&auth_user={ItopAPIOptions.Username}&auth_pwd={ItopAPIOptions.Password}&json_data={JsonConvert.SerializeObject(message)}";
            var creds = new Credentials {
                Username = ItopAPIOptions.Username, Password = ItopAPIOptions.Password
            };

            msg.Credentials = Convert.ToBase64String(Encoding.UTF8.GetBytes(creds.Username));
            msg.Create      = message;
            //msg.Create.operation = message.operation;
            //msg.Create.fields.caller_id.first_name = "";
            //msg.Create.fields.caller_id.name = "";
            // var response = (await iTopAPIWorker(msg)).Content.ReadAsStringAsync();
            var rsp = await iTopAPIWorker(msg);

            return(JsonConvert.DeserializeObject <iTopCreateResponse>(rsp));
        }