Operations

The Operations resource represents a long-running operation within Cloud Storage.

Resource representations

{
    "name": string,
    "metadata": {
      "@type": string,
      field1: ...,
      ...
    },
    "done": boolean,

    // Union field result can include either an error or a response:
    "error": {
      "code": integer,
      "message": string,
      "details": [
        {
          "@type": string,
          field1: ...,
          ...
        }
      ]
    },
    "response": {
      "@type": string,
      field1: ...,
      ...
    }
  }
Property name Value Description Notes
name string

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 be a resource name ending with operations/{operation_id}.

metadata object

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.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

done boolean

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.

Union field result. 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 can be set. Some services might not provide the result. result can be only one of the following:
error object

The error result of the operation in case of failure or cancellation.

error.code integer

The status code, which should be an enum value of google.rpc.Code.

error.message string

A developer-facing error message, which should be in English.

error.details[] object

A list of messages that carry the error details. There is a common set of message types for APIs to use.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

response object

The normal, successful response of the operation. 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.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

Methods

The methods for working with long-running operations are as follows:

cancel
Starts asynchronous cancellation on a long-running operation.
get
Gets the latest state of a long-running operation.
list
Lists service operations that match the specified filter in the request.