private static void getCertificates(IoTDAClient client) { ListCertificatesRequest req = new ListCertificatesRequest { InstanceId = "1a7ffc5c-d89c-44dd-8265-b1653d951ce0", }; try { var resp = client.ListCertificates(req); foreach (var Certificate in resp.Certificates) { Console.WriteLine(JsonConvert.SerializeObject(Certificate)); } Console.WriteLine(resp.Page); Console.WriteLine(resp.HttpStatusCode); } 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); } }