[Backlogmanager] [FIWARE-JIRA] (HELP-22063) [fiware-stackoverflow] How to realize the ERROR Path for Commands using MQTT-binding of the FIWARE IoT-Agent-JSON

[Fernando Lopez (JIRA)]

     [ https://jira.fiware.org/browse/HELP-22063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fernando Lopez reassigned HELP-22063:
-------------------------------------

    Assignee: Miguel Ángel Pedraza

> [fiware-stackoverflow] How to realize the ERROR Path for Commands using MQTT-binding of the FIWARE IoT-Agent-JSON
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: HELP-22063
>                 URL: https://jira.fiware.org/browse/HELP-22063
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>            Assignee: Miguel Ángel Pedraza
>              Labels: fiware, iot, mqtt
>
> Created question in FIWARE Q/A platform on 24-08-2023 at 09:08
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/76967925/how-to-realize-the-error-path-for-commands-using-mqtt-binding-of-the-fiware-iot
> +Question:+
> How to realize the ERROR Path for Commands using MQTT-binding of the FIWARE IoT-Agent-JSON
> +Description:+
> from the FIWARE IoT-Agent-Json documentation I understand that there is the happy path and error path for command execution (https://fiware-iotagent-json.readthedocs.io/en/latest/usermanual.html#commands)
> Using the MQTT-binding, sending a payload on the topic /json/<APIKey>/<DeviceId>/cmdexe always results in an update of the corresponding command-info to OK. This is fine as long the device does the right thing about receiving the command. However, how can I trigger an ERROR, e.g. the device receives the command, but can not execute it. Somehow with MQTT, I currently onyl understand the _info to be on either PENDING or OK once the IoT-Agent published the command to the device.
> In which case will the _info udpated to ERROR? I could not find anything in the code about this scenario.
> Thanks, for any help on this.



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