OperationMetadata

Represents the metadata of the long-running operation.

JSON representation 
{
  "createTime": string,
  "endTime": string,
  "target": string,
  "verb": string,
  "statusDetail": string,
  "cancelRequested": boolean,
  "apiVersion": string
}
Fields
createTime

string (Timestamp format)

Output only. The time the operation was created.

Uses RFC 3339, where generated output will always be Z-normalized and uses 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
endTime

string (Timestamp format)

Output only. The time the operation finished running.

Uses RFC 3339, where generated output will always be Z-normalized and uses 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
target

string

Output only. Server-defined resource path for the target of the operation.
verb

string

Output only. Name of the verb executed by the operation.
statusDetail

string

Output only. Human-readable status of the operation, if any.
cancelRequested

boolean

Output only. Identifies whether the user has requested cancellation of the operation. Operations that have been cancelled successfully have google.longrunning.Operation.error value with a google.rpc.Status.code of 1, corresponding to Code.CANCELLED.
apiVersion

string

Output only. API version used to start the operation.