How to connect to IoT Core by IAM (access key id / pwd)

Question

hello,
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i'm trying to connect to AWS IoT Core from my PC using mqtt client tools. (like, MQTT.fx, mqttbox)
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I can connect successfully by certificate mode.
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But I cannot connect by user id / pwd mode. (IAM user access key id, access key pwd)
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Let me know how to configure AWS settings or mqtt client settings.
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Answer

Hi, thanks for the question! In order to use IAM credentials, the SigV4 process is used. Since this is not supported in the MQTT protocol overall, it is accomplished by establishing a connection via MQTT over websocket. The full list of communication protocols can be found here.

You can see this in action here. This is a Python example that uses publish/subscribe. By setting the --use-websocket and --signing-region arguments, normal IAM credentials can be used. For example, by setting environment variables.

Let us know if this is helpful!

You can see this in action [here](https://github.com/aws/aws-iot-device-sdk-python-v2/blob/main/samples/pubsub.py). This is a Python example that uses publish/subscribe. By setting the `--use-websocket` and `--signing-region` arguments, normal IAM credentials can be used. For example, by setting environment variables.

Let us know if this is helpful!

How to connect to IoT Core by IAM (access key id / pwd)

hello,

i'm trying to connect to AWS IoT Core from my PC using mqtt client tools. (like, MQTT.fx, mqttbox)

I can connect successfully by certificate mode.

But I cannot connect by user id / pwd mode. (IAM user access key id, access key pwd)

Let me know how to configure AWS settings or mqtt client settings.

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