Home assistant webhook from n8n

blueprint.yaml

blueprint:
  name: Phone Do Not Disturb via Webhook
  description: >
    Sets Do Not Disturb on an Android phone running the Home Assistant
    companion app, driven by an external webhook (n8n, etc.).

    POST a JSON body of {"dnd": "on"} or {"dnd": "off"} — an empty body is
    treated as "on".

    Android only: iOS has no DND notification command. The first command sent
    opens a prompt on the phone to grant Home Assistant access to the
    Notification Policy; DND won't change until that is granted. On Android 15+
    the app can only turn DND back off if the app is what turned it on.
  domain: automation
  input:
    phone:
      name: Phone
      description: The device running the companion app.
      selector:
        device:
          filter:
            - integration: mobile_app
    webhook_id:
      name: Webhook ID
      description: The endpoint becomes /api/webhook/<this value>. Treat it as a secret.
      default: phone_dnd
      selector:
        text:
    dnd_mode:
      name: DND mode
      description: Interruption filter applied when turning DND on.
      default: priority_only
      selector:
        select:
          options:
            - alarms_only
            - priority_only
            - total_silence
    local_only:
      name: Local network only
      description: Leave on if the caller (n8n add-on) reaches HA over the local network.
      default: true
      selector:
        boolean:

mode: queued
max: 10

variables:
  phone: !input phone
  dnd_mode: !input dnd_mode
  notify_service: "notify.mobile_app_{{ device_attr(phone, 'name') | slugify }}"

trigger:
  - platform: webhook
    webhook_id: !input webhook_id
    allowed_methods:
      - POST
    local_only: !input local_only

action:
  - variables:
      desired: "{{ (trigger.json | default({}, true)).get('dnd', 'on') | string | lower }}"
  - choose:
      - conditions:
          - condition: template
            value_template: "{{ desired in ['on', 'true', '1', 'start', 'enable'] }}"
        sequence:
          - service: "{{ notify_service }}"
            data:
              message: command_dnd
              data:
                command: "{{ dnd_mode }}"
    default:
      - service: "{{ notify_service }}"
        data:
          message: command_dnd
          data:
            command: "off"