cancel method
Starts asynchronous cancellation on a long-running operation.
The server makes a best effort to cancel the operation, but success is not
guaranteed. If the server doesn't support this method, it returns
google.rpc.Code.UNIMPLEMENTED. Clients can use Operations.GetOperation
or other methods to check whether the cancellation succeeded or whether
the operation completed despite cancellation. On successful cancellation,
the operation is not deleted; instead, it becomes an operation with an
Operation.error value with a google.rpc.Status.code of 1, corresponding to
Code.CANCELLED.
request - The metadata request object.
Request parameters:
name - The name of the operation resource to be cancelled.
Value must have pattern
^projects/\[^/\]+/locations/\[^/\]+/operations/\[^/\]+$.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a Empty.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<Empty> cancel(
CancelOperationRequest request,
core.String name, {
core.String? $fields,
}) async {
final body_ = convert.json.encode(request);
final queryParams_ = <core.String, core.List<core.String>>{
if ($fields != null) 'fields': [$fields],
};
final url_ = 'v1/' + core.Uri.encodeFull('$name') + ':cancel';
final response_ = await _requester.request(
url_,
'POST',
body: body_,
queryParams: queryParams_,
);
return Empty.fromJson(response_ as core.Map<core.String, core.dynamic>);
}