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 policy tag or a taxonomy.
HTTP request
POST https://datacatalog.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}/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 allows you to set the IAM policy for a specified policy tag or taxonomy using a POST request.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eresource\u003c/code\u003e path parameter is a required string that identifies the policy tag or taxonomy to which the policy applies, following a specific format.\u003c/p\u003e\n"],["\u003cp\u003eThe request body must contain a \u003ccode\u003epolicy\u003c/code\u003e object, and can also include an optional \u003ccode\u003eupdateMask\u003c/code\u003e field to specify which policy fields to modify.\u003c/p\u003e\n"],["\u003cp\u003eA successful request returns a \u003ccode\u003ePolicy\u003c/code\u003e object in the response body, which reflects the updated IAM policy.\u003c/p\u003e\n"],["\u003cp\u003eTo use this endpoint, you need to be authorized with the \u003ccode\u003ehttps://www.googleapis.com/auth/cloud-platform\u003c/code\u003e OAuth scope.\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 policy tag or a taxonomy.\n\n### HTTP request\n\n`POST https://datacatalog.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](/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)."]]
