public static IList <Config> SetConfigValuesEx(this DataServiceQuery <Config> service, UpdateConfigValuesDescriptor updateConfigValuesDescriptor) { using (var client = new HttpClient()) { client.BaseAddress = service.Context.BaseUri; var settings = new JsonSerializerSettings { Converters = new List <JsonConverter> { new StringEnumConverter { CamelCaseText = false } } }; var requestUriPath = service.SetConfigValues(null).RequestUri.PathAndQuery; var stringPayload = JsonConvert.SerializeObject(updateConfigValuesDescriptor, settings); var httpContent = new StringContent(stringPayload, Encoding.UTF8, "application/json"); var responseMessage = client.PostAsync(requestUriPath, httpContent).Result; if (!responseMessage.IsSuccessStatusCode) { throw new ServerException(responseMessage); } var responseJson = responseMessage.Content.ReadAsStringAsync().Result; var valueObject = JObject.Parse(responseJson); var updatedConfigs = valueObject.SelectToken("value").ToObject <IList <Config> >(); return(updatedConfigs); } }