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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}/v3/{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 request to a specified endpoint with a defined path, using gRPC Transcoding syntax."],["The `name` parameter in the path specifies the operation resource to be cancelled."],["An empty request body is required for this operation to run, and if successful, it returns an empty JSON object as a response."],["The request requires one of the following OAuth scopes: `https://www.googleapis.com/auth/cloud-platform` or `https://www.googleapis.com/auth/dialogflow`."]]],[]]
