getOperation method
Gets the latest state of a long-running operation. Clients can use this method to poll the operation result at intervals as recommended by the API service.
Throws a http.ClientException if there were problems communicating with
the API service. Throws a StatusException if the API failed with a
Status message. Throws a ServiceException for any other failure.
Implementation
Future<Operation> getOperation(GetOperationRequest request) async {
final url = Uri.https(_host, '/v1/${request.name}');
final response = await _client.get(url);
return Operation.fromJson(response);
}