Firebase Storage rule different for a specific folder-CodePudding

I have a firebase storage bucket with this hierarchy e.g.

-Bucket
    --UserData
    --Folder A
    --Folder B
    --Folder C
    --Folder D

I want to apply these rules for [Folder A, Folder B, Folder C, Folder D]

match /{allPaths=**} {
      allow read;
      allow write;
}

but for UserData folder I want to apply these rules

match /UserData/{user_id} {
      allow read; 
      allow write: if request.auth != null && request.auth.uid == user_id;
}

in real life, I have far more folders [A,B,C,D ........] and only one folder [UserData] so it is not possible to write storage rule for each specific folders

CodePudding user response：

What you're trying to do is not supported by security rules. You would have to list out each top-level folder separately - there are no wildcards for this.

The easiest way to apply the same rules to unstructured folder content is to organize all that content under a single prefix (folder), and write the rules for that prefix. If you moved everything under EverythingElse, then you could apply a single rule to all of it recursively:

match /UserData/{user_id} {
  allow read; 
  allow write: if request.auth != null && request.auth.uid == user_id;
}
match /EverythingElse/{allPaths=**} {
  // your rules here
}