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Starting a flow after a Home Assistant restart

Use a Home Assistant automation to set an input boolean to on then from Node-RED check if that input boolean is on after a successful connection or at any time it changes to on.

screenshot

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Tips

The input boolean and automation can be created directly from Node-RED using the inject node found in the exported flow.

Create an input boolean using the Helpers menu (Configuration -> Helpers)

screenshot

input_boolean:
  home_assistant_restarted:
    name: Home Assistant Restarted

Create the Home Assistant automation

alias: Home Assistant Restart
description: ""
trigger:
  - platform: homeassistant
    event: start
condition: []
action:
  - service: input_boolean.turn_on
    data: {}
    entity_id: input_boolean.home_assistant_restarted
mode: single
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