aws_iot_send error code

[jake11212]

Hello,

I'm working on an application that uses the aws_iot_send function (https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/libraries/networking/aws_iot.html).  I want to ensure that no data is lost as the function sends to an AWS endpoint, which is then routed via a rule to a dynamoDB table.  I handle the error for the return value of the aws_iot_send function, but was wondering what this guarantees.  I also have the QOS level set to send at least once.

What does the 0 error code guarantee?  Is it possible that a 0 error code is generated but the data was not received by the endpoint or that the rule failed?  Or is it safe to clear the data once the 0 has been received?

Thanks!

[Susheel Nuguru]

I think this question translates more to MQTT api of the zephyr. Since the return 0 can only be returned if mqtt_publish. Based on the Zephyr documentation, it is mentioned that this is a publish subscribe method that this model is designed on. That is, publish api will return 0 if the publish has been successful but it will not trace of the consumers of this publisher. But in general all the consumers get the published message unless there is a bug in the MQTT model.

[jake11212]

Okay, thank you!