Nest Events

generated: '2026-07-20'
method: searched
source: https://developers.google.com/nest/device-access/subscribe-to-events
spec_type: Webhooks
transport: google-cloud-pubsub
summary: >-
  The Smart Device Management API delivers device and structure events
  asynchronously through a Google Cloud Pub/Sub topic tied to the Device Access
  project, rather than through HTTP callback webhooks. Partners create a Pub/Sub
  subscription to receive events. This is the provider's event surface.
delivery:
  mechanism: Google Cloud Pub/Sub subscription
  enablement: Enable Pub/Sub events for the Device Access project and subscribe to the project's topic
event_families:
  - name: trait events
    description: Device trait value changes (e.g. temperature setpoint, humidity, connectivity, camera/doorbell events)
    resource: enterprises/{project-id}/devices/{device-id}
  - name: relation events
    description: Structure/room/device relationship changes (device added or removed from a structure)
notes: >-
  Camera and doorbell media events (motion, person, sound, chime) are delivered
  as trait events with short-lived media references. No AsyncAPI document is
  published by the provider; this artifact captures the documented event surface.