Firebase security rules with wildcards

Question

I\'ve got a data structure like this:

How can I access /Restaurant/-KK37k6g5cYYippEHpZ3/User/-KK37k6g5cYYippEHpZ4/id\'s value within the fireba

Answer 1

Not sure if I fully understood what you are asking for but here goes my thoughts.

The first problem in your rule is that you are specifying child($id) but you already are inside the $id. it is implicit in your data that you are referring to $id.

To resolve your main problem you wont need another wildcard. You can just use hasChild to verify if the auth.uid is inside restaurant/user.

"Restaurant": {
   "$id": {
      ".read": "auth.uid != null",
      ".write": "auth.uid != null && data.child('User').hasChild(auth.uid)"
   }
}