Dating App - Firebase Realtime Database Schema - Swipes

laganSwipeSchema.jsonc

"swipes": {
    "$uid": {
        // Only the user to whom this swipe node pertains to can read and update it by default
        ".read": "auth.uid === $uid",
        ".write": "auth.uid === $uid",
        ".validate": "root.child('users/' + $uid).exists()",
          
      	"$candidate_uid": {
            // A user can read another user's swipe details only for the record that applies to them
            ".read": "auth.uid === $candidate_uid",
            
            // Validate that the candidate exists in users and a user is not swiping on himself
            ".validate": "root.child('users/' + $candidate_uid).exists() && $candidate_uid != $uid",
            
            "swipe_type": { ".validate": "newData.isString() && (newData.val() == 'left' || newData.val() == 'right')" }
        }
    }
}