[ceph-users] [ Radosgw Admin API] - How to include user tenant in API requests

Hi All, I'm trying to find out how to use the radsogw admin api to get user usage information ,hence the user has a tenant and I trying to pass :

/admin/bucket?uid=tenant$user

/admin/bucket?uid=user

/admin/bucket?uid=user&tenant=tenant

/admin/bucket?uid=tenant/user

But I always get an empty response (https://docs.ceph.com/en/latest/radosgw/adminops/#id60) May be there is another way to call the api with user and tenant ? Thanks