Data Catalog API methods that are related to Data Catalog search and metadata are deprecated and will be discontinued on January 30, 2026. See Transition from Data Catalog to Dataplex Universal Catalog. Methods that are related to policy tags and policy tag taxonomies are not deprecated.
Sets the IAM policy for a taxonomy or a policy tag.
HTTP request
POST https://datacatalog.googleapis.com/v1beta1/{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}/taxonomies/{taxonomies}.
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 2025-07-17 UTC."],[[["\u003cp\u003eThis endpoint utilizes a POST request to set the IAM policy for a specified taxonomy or policy tag resource.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eresource\u003c/code\u003e parameter in the URL is required and defines the target taxonomy or policy tag using a string that conforms to the specified resource name format.\u003c/p\u003e\n"],["\u003cp\u003eThe request body requires a \u003ccode\u003epolicy\u003c/code\u003e object, and it can optionally include an \u003ccode\u003eupdateMask\u003c/code\u003e field to selectively modify specific parts of the policy.\u003c/p\u003e\n"],["\u003cp\u003eUpon success, the API returns an instance of the \u003ccode\u003ePolicy\u003c/code\u003e object, which represents the updated IAM policy.\u003c/p\u003e\n"],["\u003cp\u003eAuthenticating with the scope \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e is required to access this resource.\u003c/p\u003e\n"]]],[],null,["# Method: projects.locations.taxonomies.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 policy for a taxonomy or a policy tag.\n\n### HTTP request\n\n`POST https://datacatalog.googleapis.com/v1beta1/{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](/data-catalog/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)."]]
