UnathorizedException Error?

Guest User

Hi Team

I am writing a back end application in C# using Azure SDK to the portal, but the exception im getting is as follow;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Azure.Devices.Client;
using Microsoft.Azure.Devices.Common;
using Microsoft.Azure.Devices.Shared;
using Microsoft.Azure.Devices;
namespace BackEndApplication
{
class Program
{
private static ServiceClient _serviceClient;
private readonly static string s_connectionString = "HostName=UniversityIOTHub.azure-devices.net;DeviceId=UniversityDeviceIOT;SharedAccessKey=U433bDviQRc4QlxyZSO+9sZ1d6fY94CJg2AMh+bF78g=";
private static async Task InvokeMethod()
{
var methodInvocation = new CloudToDeviceMethod("SetTelemetryInterval") { ResponseTimeout = TimeSpan.FromSeconds(30) };
methodInvocation.SetPayloadJson("10");
var response = await _serviceClient.InvokeDeviceMethodAsync("UniversityDeviceIOT", methodInvocation);
Console.WriteLine("Response status:{0}, payload", response.Status);
Console.WriteLine(response.GetPayloadAsJson());
}
static void Main(string[] args)
{
Console.WriteLine("IOT Hub Test-- BackEndApplication.\n");
_serviceClient = ServiceClient.CreateFromConnectionString(s_connectionString);
InvokeMethod().GetAwaiter().GetResult();
Console.WriteLine("Press Enter to exit.");
Console.ReadLine();
}
}
}

Microsoft.Azure.Devices.Common.Exceptions.UnauthorizedException

HResult=0x80131500

Message={"Message":"{\"errorCode\":401002,\"trackingId\":\"56456d99a904426686d7547826371c50-G:2-TimeStamp:09/12/2019 06:54:47\",\"message\":\"Unauthorized\",\"timestampUtc\":\"2019-09-12T06:54:47.6295403Z\"}","ExceptionMessage":""}

Source=Microsoft.Azure.Devices

StackTrace:

at Microsoft.Azure.Devices.HttpClientHelper.d__36.MoveNext()

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at Microsoft.Azure.Devices.HttpClientHelper.d__27`2.MoveNext()

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()

at BackEndApplication.Program.d__2.MoveNext() in C:\Users\Gcobanim\source\repos\BackEndApplication\Program.cs:line 25

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.GetResult()

at BackEndApplication.Program.Main(String[] args) in C:\Users\Gcobanim\source\repos\BackEndApplication\Program.cs:line 36

4 Replies

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Guest User7y ago
Hi Rajanikant

They way i see it, it seem there has been limited attempts to this issue on GiHub, while in contrast with stackoverflow. I see the to this via AMQP where JSON is applied to read the invoke method to the client application(C#). Well i'm bit stack now,as this is new to me or decide which best practise to use between the two. Any ideas around this? I urge for more details.

i have tried something i got from the documentation on Microsoft, now i able to get this new error after changing my connString = "{UniversityIOTHub.azure-devices.net;DeviceId=MyDotnetDevice;SharedAccessKey=****=}";

System.FormatException
HResult=0x80131537
Message=Malformed Token
Source=Microsoft.Azure.Devices
StackTrace:
at Microsoft.Azure.Devices.Common.CommonExtensionMethods.ToDictionary(String valuePairString, Char kvpDelimiter, Char kvpSeparator)
at Microsoft.Azure.Devices.IotHubConnectionStringBuilder.Parse(String iotHubConnectionString)
at Microsoft.Azure.Devices.IotHubConnectionStringBuilder.Create(String iotHubConnectionString)
at Microsoft.Azure.Devices.ServiceClient.CreateFromConnectionString(String connectionString)
at BackEndApplication.Program.Main(String[] args) in C:\Users\Gcobanim\source\repos\BackEndApplication\Program.cs:line 35
Rajanikant Hawaldar7y ago
check this
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-direct-methods
https://github.com/Azure/iotedge/issues/98
https://stackoverflow.com/questions/56631201/what-happens-to-azure-iot-hub-direct-method-invocation-if-there-is-no-handler
Guest User7y ago
The status has now changed Rajanikant to this exception below;
NB: I am using service connectionString and do have deviceID on my Azure portal, what am missing now?

Microsoft.Azure.Devices.Common.Exceptions.DeviceNotFoundException
HResult=0x80131500
Message=Device {"Message":"{\"errorCode\":404103,\"trackingId\":\"8073cd65457646c79349f263973202f7-TimeStamp:09/12/2019 07:29:02\",\"message\":\"Timed out waiting for device to connect.\",\"info\":{\"timeout\":\"00:00:00\"},\"timestampUtc\":\"2019-09-12T07:29:02.0716485Z\"}","ExceptionMessage":""} not registered
Source=Microsoft.Azure.Devices
StackTrace:
at Microsoft.Azure.Devices.HttpClientHelper.d__36.MoveNext()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Azure.Devices.HttpClientHelper.d__27`2.MoveNext()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at BackEndApplication.Program.d__2.MoveNext() in C:\Users\Gcobanim\source\repos\BackEndApplication\Program.cs:line 25
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at BackEndApplication.Program.Main(String[] args) in C:\Users\Gcobanim\source\repos\BackEndApplication\Program.cs:line 36
Rajanikant Hawaldar7y ago
This may help you
https://github.com/MicrosoftDocs/azure-docs/issues/14123
https://github.com/Azure/azure-iot-sdk-csharp/issues/425