Hassio rest api shelly -1

switch:
  - platform: rest
    name: "Shelly1 Switch1"
    scan_interval: 5
    resource: http://192.168.2.xxx/relay/0
    body_on: 'turn=on'
    body_off: 'turn=off'
    is_on_template: '{{ value_json.ison == true}}'
    headers:
      content-type: application/x-www-form-urlencoded