private static void createSubscription(IoTDAClient client) { CreateSubscriptionRequest req = new CreateSubscriptionRequest { Body = new CreateSubReq() { Callbackurl = "https://10.10.10.10:443/deviceActivate", Channel = "http", Subject = new Subject() { Event = "activate", Resource = "device" } } }; try { var resp = client.CreateSubscription(req); Console.WriteLine(resp); } catch (RequestTimeoutException requestTimeoutException) { Console.WriteLine(requestTimeoutException.ErrorMessage); } catch (ServiceResponseException clientRequestException) { Console.WriteLine(clientRequestException.HttpStatusCode); Console.WriteLine(clientRequestException.ErrorCode); Console.WriteLine(clientRequestException.ErrorMsg); } catch (ConnectionException connectionException) { Console.WriteLine(connectionException.ErrorMessage); } }