apps.yaml

events_forwarder:
  module: events_forwarder
  class: EventsForwarder
  entities:
    # - binary_sensor.aqara_door_1_contact
    # - binary_sensor.debug_contact
    # - sensor.aqara_multi_outdoor_temperature
    - sensor.day_night_custom
    - sensor.zwift_online_1013655
    - binary_sensor.aqara_water_rain_water_leak
    - sensor.raingauge_tips
    # - light.kotlownia

events_forwarder.py

import appdaemon.plugins.hass.hassapi as hass
import requests

class EventsForwarder(hass.Hass):
  def initialize(self):
    self.log("Hello from AppDaemon Events forwarder")
    self.log( self.args["entities"] )

    for entity in self.args["entities"]:
      self.listen_state(self.forward_event, entity)

  def forward_event(self, entity, attribute, old, new, kwargs):
    # self.log("Changed!!! [state]")
    # self.log(entity)
    # self.log(attribute)
    # self.log(old)
    # self.log(new)
    if old != "unknown":
      requests.post('http://000.000.00.00:0000/ha_events_slack_bot_this_is_only_fyi', json={"entity": entity})