Stocker/firestore.rules at main · KenC2006/Stocker · GitHub

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rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    // Allow reading all users' data for leaderboard (including guests)
    // But only show verified users in leaderboard
    match /users/{userId} {
      allow read: if true;
      allow create: if request.auth != null && request.auth.uid == userId;
      allow update: if request.auth != null && request.auth.uid == userId;
      allow delete: if request.auth != null && request.auth.uid == userId;
    }

    // Allow authenticated users to read all stocks
    // But only allow users to modify their own stocks
    match /stocks/{stockId} {
      allow read: if request.auth != null;
      allow create, update: if request.auth != null &&
        request.resource.data.userId == request.auth.uid;
      allow delete: if request.auth != null &&
        resource.data.userId == request.auth.uid;
    }

    // Allow authenticated users to read all transactions
    // But only allow users to modify their own transactions
    match /transactions/{transactionId} {
      allow read: if request.auth != null;
      allow create, update: if request.auth != null &&
        request.resource.data.userId == request.auth.uid;
      allow delete: if request.auth != null &&
        resource.data.userId == request.auth.uid;
    }
  }
}