Easy Rest API With Serialize and Deserialize

EasyRest.cs

        public bool EasyRest(long sortingDataId, out string error, out int error_code, out bool fatal)
        {
            var httpWebRequest = (HttpWebRequest)WebRequest.Create(Api.ApiOptions.LightSortingConfirmationURL);
            httpWebRequest.ContentType = "application/json";
            httpWebRequest.Method = "POST";
            httpWebRequest.Headers.Add("Authorization", $"{ApiOptions.TokenType} {ApiOptions.Token}");
            error_code = 0;
            fatal = false;


            using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
            {
                string json = JsonConvert.SerializeObject(new
                {
                    sortingDataId = sortingDataId

                }
                );


                streamWriter.Write(json);
            }

            try
            {
                using (var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse())
                {
                    using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                    {
                        var result = streamReader.ReadToEnd();

                        var json_result = JsonConvert.DeserializeObject<IGTResponse>(result);
                        if (json_result != null)
                        {
                                error = json_result.errorMessage;
                                error_code = json_result.errorCode;
                                return true;
                            
                        }
                    }
                }

                error = "Return result is not valid";
                return false;

            }
            catch (WebException ex)
            {
                error = ex.Message;
                fatal = true;
                if (ex.Status == WebExceptionStatus.ProtocolError && ex.Response != null)
                {
                    var resp = (HttpWebResponse)ex.Response;
                    if (resp.StatusCode == HttpStatusCode.NotFound)
                    {
                        error = "404 Page Not Found, URL is not valid";
                        return false;
                    }

                }


            }

            return false;
        }