[ceph-users] Bucket/object create/update/delete notification

Hi, I would like to get info if the bucket or object got updated. I can get this info with a changed etag of an object, but not I cannot get etag from bucket, so I am looking at https://docs.ceph.com/en/latest/radosgw/notifications/ How do I create a topic and where do I send request with parameters? Anyone have an example (cli, python, ...) with topic creation where I can get notification to a http endpoint when an object got created in a bucket? Kind regards, Rok