Send feedback      BucketAccessControls: insert  Stay organized with collections    Save and categorize content based on your preferences.           Creates a new ACL entry on the specified bucket .
   Required permissions  The authenticated user must have the following IAM permissions on the bucket to use this method: 
 storage.buckets.getstorage.buckets.getIamPolicystorage.buckets.setIamPolicystorage.buckets.update  As an alternative to having IAM permissions, the authenticated user can use this method by having the OWNER ACL permission for the bucket.     Request  HTTP request  
POST https://storage.googleapis.com/storage/v1/b/bucket /acl In addition to standard query parameters , the following query parameters apply to this method.
 To see an example of how to include query parameters in a request, see the JSON API Overview  page.
 Parameters     Parameter name  Value  Description        Path parameters    bucketstring Name of a bucket.       
 Request body  In the request body, supply a BucketAccessControls resource  with the following properties:
    Property name  Value  Description  Notes        Required Properties    entitystringThe entity holding the permission, in one of the following forms:  user-email group-groupId group-email domain-domain project-team -projectId allUsersallAuthenticatedUsers  Examples:  The user liz@example.com would be user-liz@example.com.  The group example@googlegroups.com would be group-example@googlegroups.com.  To refer to all members of the domain example.com, the entity would be domain-example.com.      writable      rolestringThe access permission for the entity.  "OWNER"  "READER"  "WRITER"       writable       
     Try it!   Use the APIs Explorer below to call this method on live data and see the response. 
 
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 Last updated 2025-10-24 UTC.
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