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://file.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 2025-06-17 UTC."],[[["This webpage details the process for initiating the asynchronous cancellation of a long-running operation, though success is not guaranteed."],["The cancellation is triggered via an HTTP POST request to a specific URL, which includes the name of the operation to be canceled as a path parameter."],["The request body for this operation must be empty, indicating that no additional data is required for the cancellation request."],["A successful cancellation request will result in an empty JSON object being returned as the response, and the operation's status will be updated accordingly."],["To authorize this request, the OAuth scope `https://www.googleapis.com/auth/cloud-platform` is required, granting access to cloud platform resources."]]],[]]
