rest_command:
example_request:
url: "https://URL"
alias: Webhook Test
description: ''
trigger:
- platform: device
type: turned_on
device_id: 12345
entity_id: switch.basement_filter
domain: switch
condition: []
action:
- service: rest_command.example_request
mode: single
That format above works for me. The only thing I can think of is that you have an issue with formatting or your trigger is bad.