ZHA: What is the correct way to push events out?

[slender storm]

I have ZHA set up and working, with a button paired.

When I was using Zigbee2MQTT, getting events "externally" to Home Assistant was as simple as listening to the correct topic.

I would rather not have to run an automation to publish ZHA events to other applications - is there a better way to broadcast information FROM Home Assistant out to other services on my network?

Use case:
I have a service running on another box that was originally listening to an MQTT topic, that then performed some tasks for me when I pressed a button.

Yes, I could write an Addon or use Node Red but having an event bus was far simpler.

[true dome]

Something like this? https://www.home-assistant.io/integrations/mqtt_statestream/

[slender storm]

https://www.home-assistant.io/integrations/mqtt_eventstream/ looks close, but it being "legacy" is a worry

@true dome huh, I wonder what the difference is

[true dome]

States vs events

[slender storm]

yeah, got it: this is interesting. https://community.home-assistant.io/t/mqtt-statestream-and-mqtt-eventstream-pass-back-command/120599/4?u=voltagex

Thanks @true dome, I think I am on the right track

That's a pity, the button doesn't seem to have a state.

Whereas the zigbee temperature sensor does.

[true dome]

It probably emits an event

I think that's how ZHA does it vs creating entities

[slender storm]

yeah, one of my issues there is the statestream has nice include and exclude configuration, eventstream doesn't.

[true dome]

But now events can also create entities

It looks like maybe ZHA doesn't support that yet

You could probably just have a single automation that listens for zha_event and published to MQTT with whatever scheme you want

[slender storm]

how heavy is that, CPU wise?

actually, it's probably better than streaming all events to MQTT...

[true dome]

How many events do you have?

Listen and see