docs/reference.rst @mqtt_trigger and callbacks #707
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It says four variables, but lists five, removed "four". I was tripped up by a null message with a payload_obj listed as a required function parameter, give a hint for not specifying it as a required parameter. Moved qos before payload as I listed the arguments in order, and needed it to not be last for payload_obj to be optional and qos not. Fixed the Wildcard formatting, the two bullet points were all made into one paragraph with "- + matches" confusing as I didn't think - was a wildcard, it needed the blank line to render them as bullet points.
Give @pyscript_compile and lambda as another work around for python callback functions.
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Thanks for the doc updates! |
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I just got bit by a couple things and wanted to contribute back to improve the documentation.
I think they are all minor changes or formatting and straight forward.
The biggest hurdle I had was trying to query the history, I was wanting yesterday's value, and everything in Home Assistant is geared around the most recent value. In my case I was monitoring my car's TPMS and was wanting the leak rate, so now - yesterday. I tried the Derivative sensor, but it does weighted averages for the time period, and since there's a large block of time each day that the car isn't available to get the pressure completely throws off the average leak rate.
I see the asyncio Futures page list
print(await fut)for getting the future value, but that doesn't seem to work. The best I've done isfuture.add_done_callbackwith all the drawbacks of needing to pass a compiled python function or lambda, it does work for what I need.