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Re: [mosquitto-dev] Introspecting information about last wills in Mosquitto

Hi Alex,

I'm glad you've found a solution that works for you. There isn't
client level information in the $SYS topics, no. I'm thinking about
adding interfaces to allow plugins to get more client information
which would allow you to do this, but for right now I think you've got
the best idea.



On Mon, 22 Feb 2021 at 09:20, Alex R <ralienpp@xxxxxxxxx> wrote:
> Hi everyone,
> I am writing some automated acceptance tests for robots that use MQTT for communication. One of the steps is to ensure that the robot's MQTT client has set a last will.
> Assuming that I have root access to the machine where Mosquitto is running, is there a way to check this programmatically?
> I'd like to avoid the need of having a human to physically walk to the robot and unplug its antenna or perform some other action to actually provoke a real "client disconnected ungracefully" situation. The $SYS topics didn't provide anything that seemed useful for this goal, so I'd like to tap into the collective mind to find some potential approaches I could try. If there's no direct solution, perhaps there would be a "next best alternative"?
> Thank you forward,
> Alex
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