Sets the IAM access control policy on the specified function. Replaces any existing policy.
HTTP request
POST https://cloudfunctions.googleapis.com/v1/{resource}:setIamPolicy
Path parameters
Parameters
resource
string
REQUIRED: The resource for which the policy is being specified. See Resource names for the appropriate value for this field. It takes the form projects/{project}/locations/{location}/functions/{function}.
Request body
The request body contains data with the following structure:
REQUIRED: The complete policy to be applied to the resource. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Google Cloud services (such as Projects) might reject them.
OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only the fields in the mask will be modified. If no mask is provided, the following default mask is used:
paths: "bindings, etag"
This is a comma-separated list of fully qualified names of fields. Example: "user.displayName,photo".
Response body
If successful, the response body contains an instance of Policy.
[[["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 2025-06-16 UTC."],[[["\u003cp\u003eThis endpoint uses a POST request to set the IAM access control policy for a specified Google Cloud function, replacing any existing policy.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eresource\u003c/code\u003e path parameter is required and identifies the specific function, formatted as \u003ccode\u003eprojects/{project}/locations/{location}/functions/{function}\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe request body requires a \u003ccode\u003epolicy\u003c/code\u003e object, defining the complete policy to be applied, and an optional \u003ccode\u003eupdateMask\u003c/code\u003e string to specify which fields of the policy to modify.\u003c/p\u003e\n"],["\u003cp\u003eA successful request returns a \u003ccode\u003ePolicy\u003c/code\u003e object, and the size of the policy is limited to a few 10s of KB.\u003c/p\u003e\n"],["\u003cp\u003eThe request requires the \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e OAuth scope for authorization.\u003c/p\u003e\n"]]],[],null,["# Method: projects.locations.functions.setIamPolicy\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Request body](#body.request_body)\n - [JSON representation](#body.request_body.SCHEMA_REPRESENTATION)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [Try it!](#try-it)\n\nSets the IAM access control policy on the specified function. Replaces any existing policy.\n\n### HTTP request\n\n`POST https://cloudfunctions.googleapis.com/v1/{resource}:setIamPolicy`\n\n### Path parameters\n\n### Request body\n\nThe request body contains data with the following structure:\n\n### Response body\n\nIf successful, the response body contains an instance of [Policy](/functions/docs/reference/rest/Shared.Types/Policy).\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)."]]
