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// Copyright 2016 Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.longrunning;
import "google/api/annotations.proto";
import "google/protobuf/any.proto";
import "google/protobuf/empty.proto";
import "google/rpc/status.proto";
option csharp_namespace = "Google.LongRunning";
option go_package = ";longrunning";
option java_multiple_files = true;
option java_outer_classname = "OperationsProto";
option java_package = "";
// Manages long-running operations with an API service.
// When an API method normally takes long time to complete, it can be designed
// to return [Operation][google.longrunning.Operation] to the client, and the client can use this
// interface to receive the real response asynchronously by polling the
// operation resource, or pass the operation resource to another API (such as
// Google Cloud Pub/Sub API) to receive the response. Any API service that
// returns long-running operations should implement the `Operations` interface
// so developers can have a consistent client experience.
service Operations {
// Lists operations that match the specified filter in the request. If the
// server doesn't support this method, it returns `UNIMPLEMENTED`.
// NOTE: the `name` binding below allows API services to override the binding
// to use different resource name schemes, such as `users/*/operations`.
rpc ListOperations(ListOperationsRequest) returns (ListOperationsResponse) {
option (google.api.http) = { get: "/v1/{name=operations}" };
// 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.
rpc GetOperation(GetOperationRequest) returns (Operation) {
option (google.api.http) = { get: "/v1/{name=operations/**}" };
// Deletes a long-running operation. This method indicates that the client is
// no longer interested in the operation result. It does not cancel the
// operation. If the server doesn't support this method, it returns
// `google.rpc.Code.UNIMPLEMENTED`.
rpc DeleteOperation(DeleteOperationRequest) returns (google.protobuf.Empty) {
option (google.api.http) = { delete: "/v1/{name=operations/**}" };
// 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][google.longrunning.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][google.longrunning.Operation.error] value with a [google.rpc.Status.code][google.rpc.Status.code] of 1,
// corresponding to `Code.CANCELLED`.
rpc CancelOperation(CancelOperationRequest) returns (google.protobuf.Empty) {
option (google.api.http) = { post: "/v1/{name=operations/**}:cancel" body: "*" };
// This resource represents a long-running operation that is the result of a
// network API call.
message Operation {
// The server-assigned name, which is only unique within the same service that
// originally returns it. If you use the default HTTP mapping, the
// `name` should have the format of `operations/some/unique/name`.
string name = 1;
// Service-specific metadata associated with the operation. It typically
// contains progress information and common metadata such as create time.
// Some services might not provide such metadata. Any method that returns a
// long-running operation should document the metadata type, if any.
google.protobuf.Any metadata = 2;
// If the value is `false`, it means the operation is still in progress.
// If true, the operation is completed, and either `error` or `response` is
// available.
bool done = 3;
// The operation result, which can be either an `error` or a valid `response`.
// If `done` == `false`, neither `error` nor `response` is set.
// If `done` == `true`, exactly one of `error` or `response` is set.
oneof result {
// The error result of the operation in case of failure or cancellation.
google.rpc.Status error = 4;
// The normal response of the operation in case of success. If the original
// method returns no data on success, such as `Delete`, the response is
// `google.protobuf.Empty`. If the original method is standard
// `Get`/`Create`/`Update`, the response should be the resource. For other
// methods, the response should have the type `XxxResponse`, where `Xxx`
// is the original method name. For example, if the original method name
// is `TakeSnapshot()`, the inferred response type is
// `TakeSnapshotResponse`.
google.protobuf.Any response = 5;
// The request message for [Operations.GetOperation][google.longrunning.Operations.GetOperation].
message GetOperationRequest {
// The name of the operation resource.
string name = 1;
// The request message for [Operations.ListOperations][google.longrunning.Operations.ListOperations].
message ListOperationsRequest {
// The name of the operation collection.
string name = 4;
// The standard list filter.
string filter = 1;
// The standard list page size.
int32 page_size = 2;
// The standard list page token.
string page_token = 3;
// The response message for [Operations.ListOperations][google.longrunning.Operations.ListOperations].
message ListOperationsResponse {
// A list of operations that matches the specified filter in the request.
repeated Operation operations = 1;
// The standard List next-page token.
string next_page_token = 2;
// The request message for [Operations.CancelOperation][google.longrunning.Operations.CancelOperation].
message CancelOperationRequest {
// The name of the operation resource to be cancelled.
string name = 1;
// The request message for [Operations.DeleteOperation][google.longrunning.Operations.DeleteOperation].
message DeleteOperationRequest {
// The name of the operation resource to be deleted.
string name = 1;