New service calls and sensors for shopping list component

Feature Requests
50

Different method is to call the shopping list JSON directly from the undocumented API using a REST sensor. However the value template ignores the “complete” status, which isn’t a problem for me. Nice and simple :grinning:

# Shopping list
- platform: rest
  name: Grocery List
  headers:
    authorization: !secret shopping_list
    content-type: 'application/json'
  resource: http://<HA-IP>:8123/api/shopping_list
  value_template: "{{ value_json | map(attribute='name') | list | join(', ') }}"
  method: GET
  scan_interval: 60

More information can be found here

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