firestore.rules

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /passwords/{passwordId} {
      allow read: if request.auth != null && request.auth.uid == resource.data.userId;
      allow create: if request.auth != null && 
                   request.resource.data.userId == request.auth.uid &&
                   request.resource.data.name is string &&
                   request.resource.data.password is string;
      allow update: if request .auth != null && 
                   request.auth.uid == resource.data.userId &&
                   request.resource.data.name is string &&
                   request.resource.data.password is string;
      allow delete: if request.auth != null && request.auth.uid == resource.data.userId;
    }
  }
}