Google: Watch for changes to ACL resources — response body

API reference · Contract 2026-10-27

SDK schema: Watch for changes to ACL resources — response body

Field	Type	Presence	Description and constraints
$	object	Root
address	string	Optional	The address where notifications are delivered for this channel.
expiration	string	Optional	Date and time of notification channel expiration, expressed as a Unix timestamp, in milliseconds. Optional. Format: int64
id	string	Optional	A UUID or similar unique string that identifies this channel.
kind	string	Optional	Identifies this as a notification channel used to watch for changes to a resource, which is “api#channel”. Default: api#channel
params	object	Optional	Additional parameters controlling delivery channel behavior. Optional. Additional keys: see wildcard field
params.*	string	Additional keys	Declares a new parameter by name.
payload	boolean	Optional	A Boolean value to indicate whether payload is wanted. Optional.
resourceId	string	Optional	An opaque ID that identifies the resource being watched on this channel. Stable across different API versions.
resourceUri	string	Optional	A version-specific identifier for the watched resource.
token	string	Optional	An arbitrary string delivered to the target address with each notification delivered over this channel. Optional.
type	string	Optional	The type of delivery mechanism used for this channel. Valid values are “web_hook” (or “webhook”). Both values refer to a channel where Http requests are used to deliver messages.