Intent script for shopping_list

Configuration
1

Hi guys.

I’m trying to create an intent for the shopping list.

  addShoppingListItem:
    action:
      - service: shopping_list.add_item
        data_template:
          name: {{ shopping_item }}

This gives me this error:

Tue Jan 01 2019 15:19:43 GMT+0100 (Mitteleuropäische Normalzeit)

invalid key: "OrderedDict([('shopping_item', None)])"
  in "/home/homeassistant/.homeassistant/intent_script.yaml", line 167, column 0
2

When i do it like that :

  addShoppingListItem:
    action:
      - service: shopping_list.add_item
        data:
          name: '{{ shopping_item }}'

{{ shopping_item }} is added to my shopping list as a word

3

I think I’m a little late here. but

conversation:
  intents:
    shoppinglistadditem:
      - "[morgen] {item} [auf die] [einkaufen] [kaufen] [einkaufsliste] "

intent_script:
  shoppinglistadditem:
    action:
      service: shopping_list.add_item
      data_template:
        name: "{{item}}"
    speech:
      text: "{{item}} ist auf deiner Liste"

just stumbled across here because I try to find a template to get the items out as a string