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MQTT bridge - SmartApp does not trigger DH

I found this bridge but it seems the author is no longer active.

I’m trying to get this working and was wondering if anyone here could help.

I can see the SmartApp is getting the on / off signal, and it’s trying to call the DH - but in the DH there are debug statements that never fire…

Is there any docs on how to call a DH from inside the SmartApp?

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For anyone else interested, I move the hubAction call from the DH into the smartApp. I can get the hub to trigger the rest call to my mqtt-bridge.

I’m now working on the call from mqtt -> bridge -> hub -> ST.

Of course, we could just use the ST rest service, but I am still trying to get the call to the hub to work.