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 returnsgoogle.rpc.Code.UNIMPLEMENTED. Clients can useOperations.GetOperationor 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 anOperation.errorvalue with agoogle.rpc.Status.codeof1, corresponding toCode.CANCELLED.
HTTP request
POST https://datafusion.googleapis.com/v1/{name=projects/*/locations/*/operations/*}:cancel
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-06-20 UTC."],[[["\u003cp\u003eThis webpage documents the process for initiating the asynchronous cancellation of a long-running operation, acknowledging that cancellation success isn't guaranteed.\u003c/p\u003e\n"],["\u003cp\u003eThe HTTP request to cancel an operation is a POST request to a specific URL structure defined by gRPC Transcoding, including the operation's unique name as a path parameter.\u003c/p\u003e\n"],["\u003cp\u003eTo initiate the cancellation, the request body must be empty, meaning that no content needs to be included in the body of the request.\u003c/p\u003e\n"],["\u003cp\u003eA successful cancellation attempt will result in an empty JSON object as the response body.\u003c/p\u003e\n"],["\u003cp\u003eThe request requires \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e scope for authorization.\u003c/p\u003e\n"]]],[],null,["# Method: projects.locations.operations.cancel\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [Try it!](#try-it)\n\nStarts 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](/data-fusion/docs/reference/rest/v1beta1/projects.locations.operations/get#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](/data-fusion/docs/reference/rest/Shared.Types/ListOperationsResponse#Operation.FIELDS.error) value with a [google.rpc.Status.code](/data-fusion/docs/reference/rest/Shared.Types/ListOperationsResponse#Status.FIELDS.code) of `1`, corresponding to `Code.CANCELLED`.\n\n### HTTP request\n\n`POST https://datafusion.googleapis.com/v1/{name=projects/*/locations/*/operations/*}:cancel`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n### Request body\n\nThe request body must be empty.\n\n### Response body\n\nIf successful, the response body is an empty JSON object.\n\n### Authorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/cloud-platform`\n\nFor more information, see the [Authentication Overview](/docs/authentication#authorization-gcp)."]]
