Field mask is used to specify the fields to be overwritten in the Api resource by the update. The fields specified in the updateMask are relative to the resource, not the full request. A field will be overwritten if it is in the mask. If the user does not provide a mask then all fields will be overwritten.
A comma-separated list of fully qualified names of fields. Example: "user.displayName,photo".
[[["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 2025-07-28 UTC."],[[["\u003cp\u003eThis page details how to update the parameters of a single API using a PATCH HTTP request to a specific URL, which follows gRPC Transcoding syntax.\u003c/p\u003e\n"],["\u003cp\u003eThe update process involves path parameters, such as \u003ccode\u003eapi.name\u003c/code\u003e, which specify the target API resource in the format \u003ccode\u003eprojects/{project}/locations/global/apis/{api}\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eQuery parameters, including \u003ccode\u003eupdateMask\u003c/code\u003e, allow for the specification of which fields within the API resource should be updated; without a mask, all fields will be overwritten.\u003c/p\u003e\n"],["\u003cp\u003eThe request body should contain an instance of the \u003ccode\u003eApi\u003c/code\u003e resource, and the response body, if successful, will contain an instance of \u003ccode\u003eOperation\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eTo perform this operation, authorization is required via the OAuth scope \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]