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.
HTTP request
POST https://{endpoint}/v2/{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 2025-06-27 UTC."],[[["This endpoint initiates an asynchronous cancellation of a long-running operation, with no guarantee of success."],["The HTTP request is a POST to a specific URL structure, defined by the gRPC Transcoding syntax and the service endpoint."],["The `name` path parameter is required, indicating the operation resource to be cancelled."],["The request body must be empty when cancelling the operation, and a successful response will also be an empty JSON object."],["To use this cancellation endpoint, authorization with either the `https://www.googleapis.com/auth/cloud-platform` or `https://www.googleapis.com/auth/dialogflow` OAuth scopes is mandatory."]]],[]]
