etag property
etag is used for optimistic concurrency control as a way to help prevent
simultaneous updates of an alert metadata from overwriting each other.
It is strongly suggested that systems make use of the etag in the
read-modify-write cycle to perform metatdata updates in order to avoid
race conditions: An etag is returned in the response which contains
alert metadata, and systems are expected to put that etag in the request
to update alert metadata to ensure that their change will be applied to
the same version of the alert metadata. If no etag is provided in the
call to update alert metadata, then the existing alert metadata is
overwritten blindly.
Optional.
Implementation
core.String? etag;