Help Needed with Automation for Toggling Todo Status Based on NFC Tag Scan

Configuration
1

Hello Home Assistant Community,

I’m new to Home Assistant and have been working on an automation to manage a “Restmüll” (waste) todo item using an NFC tag scan. My goal is to be able to scan the trash bin when it is full. Then a todo is beeing added to the wohnung_verlassen todo list. With another automation I read out all the open todos from this list when I leave the house. When I’ve emptied the trash, I want to re-scan the tag and set the todo back to completed. Despite several attempts, I keep running into issues, and I need your help to figure out what I’m doing wrong.

So what I’m Trying to Achieve:

  • Scan an NFC Tag: When I scan a specific NFC tag (ID: 20d0ad4f-7b0a-485c-881d-828bbdae4af8), it should:
    • Check if the “Restmüll” todo item exists in todo.wohnung_verlassen.
    • If it exists, toggle its status between needs_action and completed.
    • Send notifications about the actions taken.

What I’ve Tried

Here’s the current version of my automation:

alias: Restmüll Management
description: "Toggle Restmüll task based on NFC tag scan"
trigger:
  - platform: tag
    tag_id: 20d0ad4f-7b0a-485c-881d-828bbdae4af8
condition: []
action:
  - service: notify.mobile_app_pixel_5
    data:
      message: "NFC Tag scanned: {{ trigger.event.data.tag_id }}"
  - service: todo.get_items
    target:
      entity_id: todo.wohnung_verlassen
    data:
      status: needs_action
    response_variable: mylist
  - variables:
      restmuell_exists: "{{ 'Restmüll' in mylist['todo.wohnung_verlassen']['items'] | map(attribute='summary') | list }}"
  - choose:
      - conditions:
          - condition: template
            value_template: "{{ restmuell_exists }}"
        sequence:
          - service: todo.get_items
            target:
              entity_id: todo.wohnung_verlassen
            data:
              status: needs_action
            response_variable: item_status
          - variables:
              current_status: "{{ item_status['todo.wohnung_verlassen']['items'] | selectattr('summary', 'eq', 'Restmüll') | map(attribute='status') | first }}"
          - choose:
              - conditions:
                  - condition: template
                    value_template: "{{ current_status == 'needs_action' }}"
                sequence:
                  - service: todo.update_item
                    target:
                      entity_id: todo.wohnung_verlassen
                    data:
                      item: Restmüll
                      status: completed
                  - service: notify.mobile_app_pixel_5
                    data:
                      message: "Restmüll completed"
              - conditions:
                  - condition: template
                    value_template: "{{ current_status != 'needs_action' }}"
                sequence:
                  - service: todo.update_item
                    target:
                      entity_id: todo.wohnung_verlassen
                    data:
                      item: Restmüll
                      status: needs_action
                  - service: notify.mobile_app_pixel_5
                    data:
                      message: "Restmüll set to needs action"
      - conditions:
          - condition: template
            value_template: "{{ not restmuell_exists }}"
        sequence:
          - service: todo.add_item
            target:
              entity_id: todo.wohnung_verlassen
            data:
              summary: Restmüll
              status: needs_action
          - service: notify.mobile_app_pixel_5
            data:
              message: "Restmüll item created and set to needs_action"
  - service: notify.mobile_app_pixel_5
    data:
      message: "End of automation reached with tag: {{ trigger.event.data.tag_id }}"
mode: single

Issues I’m Facing:
Invalid Keys Error:
When trying to update the todo item, I receive the error: extra keys not allowed @ data[‘summary’].
Toggling Status:
Setting the status to completed works, but setting it back to needs_action doesn’t work, and I get the error: extra keys not allowed @ data[‘summary’].

What I’ve Tried

  • Ensuring that summary is only included when creating a new todo item.
  • Checking and updating the status based on conditions to toggle between needs_action and completed.

Can someone please help me understand why the todo.update_item service call is failing when I try to set the status to needs_action? Any guidance or suggestions on how to properly structure this automation would be greatly appreciated.

Thank you for your assistance!

2

I figured it out.
Here is a working automation, that can identify the current state of a todo.

alias: Restmüll Management
description: Toggle Restmüll task based on NFC tag scan
trigger:
  - platform: tag
    tag_id: 20d0ad4f-7b0a-485c-881d-828bbdae4af8
condition: []
action:
  - service: todo.get_items
    target:
      entity_id: todo.wohnung_verlassen
    data: {}  # Retrieve all items regardless of status
    response_variable: all_items
  - variables:
      current_status: >-
        {{ all_items['todo.wohnung_verlassen']['items'] |
        selectattr('summary', 'eq', 'Restmüll') |
        map(attribute='status') | first | default('not found') }}
  - choose:
      - conditions:
          - condition: template
            value_template: "{{ current_status == 'completed' }}"
        sequence:
          - service: todo.update_item
            target:
              entity_id: todo.wohnung_verlassen
            data:
              item: Restmüll
              status: needs_action
          - service: notify.mobile_app_pixel_5
            data:
              message: Restmüll bitte rausbringen
              title: Todo
              data:
                importance: high
      - conditions:
          - condition: template
            value_template: "{{ current_status == 'needs_action' }}"
        sequence:
          - service: todo.update_item
            target:
              entity_id: todo.wohnung_verlassen
            data:
              item: Restmüll
              status: completed
          - service: notify.mobile_app_pixel_5
            data:
              message: Restmüll erledigt
              title: Todo
              data:
                importance: high
    default:
      - service: notify.mobile_app_pixel_5
        data:
          message: "Error: Unexpected status '{{ current_status }}' for Restmüll"
mode: single
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