I want to send Messages with MQTT-Client to IoT Hub - SAS token is not accepted

Question

Hello,

I use the C-example of https://github.com/Azure-Samples/IoTMQTTSample to send messages to my IoT Hub.

When I try to get the required SAS-Token with command:

az iot hub generate-sas-token -d <DeviceId> -n <MyIoTHub>

I get error:

'generate-sas-token' is misspelled or not recognized by the system.

When I use the SAS-Token from IoT Explorer in my sample program, I get the following error:

Connection Refused, please check your SAS Token, expired ?

Where can I get a working example (C-Code) using mosquitto to send messages to IoT Hub?

Uwe

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Edit:

When I change the API from api-version=2018-06-30 to api-version=2020-09-30 I get another error:

Connect Callback returned : 3=Connection Refused, Server unavailable

Answer 1

@UK Welcome to Microsoft Q&A forum!

When I try to get the required SAS-Token with command:
az iot hub generate-sas-token -d <DeviceId> -n <MyIoTHub>

I get error:
'generate-sas-token' is misspelled or not recognized by the system.

You get these type of errors when Microsoft Azure IoT extension for Azure CLI is not added to the Azure CLI.

What is the CLI version you are using and can you confirm if you have added the Microsoft Azure IoT extension for Azure CLI?