Method: projects.subscriptions.seek

Seeks an existing subscription to a point in time or to a given snapshot, whichever is provided in the request. Snapshots are used in subscriptions.seek operations, which allow you to manage message acknowledgments in bulk. That is, you can set the acknowledgment state of messages in an existing subscription to the state captured by a snapshot. Note that both the subscription and the snapshot must be on the same topic.

HTTP request


Path parameters

Parameters
subscription

string

Required. The subscription to affect.

Request body

The request body contains data with the following structure:

JSON representation 
{

  // Union field target can be only one of the following:
  "time": string,
  "snapshot": string
  // End of list of possible types for union field target.
}
Fields

Union field target.

target can be only one of the following:
time

string (Timestamp format)

Optional. The time to seek to. Messages retained in the subscription that were published before this time are marked as acknowledged, and messages retained in the subscription that were published after this time are marked as unacknowledged. Note that this operation affects only those messages retained in the subscription (configured by the combination of messageRetentionDuration and retainAckedMessages). For example, if time corresponds to a point before the message retention window (or to a point before the system's notion of the subscription creation time), only retained messages will be marked as unacknowledged, and already-expunged messages will not be restored.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
snapshot

string

Optional. The snapshot to seek to. The snapshot's topic must be the same as that of the provided subscription. Format is projects/{project}/snapshots/{snap}.

Response body

If successful, the response body is empty.

Authorization scopes

Requires one of the following OAuth scopes:

  • https://www.googleapis.com/auth/pubsub
  • https://www.googleapis.com/auth/cloud-platform

For more information, see the Authentication Overview.