Call Lamda function from AWS iot

Question

I am trying to call Lamda function from iot. I can see the subscribed message on MQTT Test Client sent from iot device. But not able to call Lamda function. I followed the tutorial https://docs.aws.amazon.com/iot/latest/developerguide/iot-lambda-rule.html#iot-lambda-rule-test-rule
I have also attached cloudwatch logs under error action to the AWS IoT rule. Still, nothing was logged. I am not sure if the connection is being established between AWS IoT and Lamda. However, I am able to call Lamda function successfully from API Gateway.

Accepted Answer

Hi. I recommend you [enable IoT logging](https://docs.aws.amazon.com/iot/latest/developerguide/configure-logging.html) and look for the `RuleExecution` event type: https://docs.aws.amazon.com/iot/latest/developerguide/diagnosing-rules.html

This will confirm or deny whether your rule is running, and tell if you if it's suffering any errors when executing the Lambda action.

Call Lamda function from AWS iot

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