User-Based Access Control
Implement rules to grant or deny read/write access based on authenticated user IDs and roles.
Control Access by User
Welcome to this lesson! In secure applications, it's crucial to control who can access what data. This is known as User-Based Access Control.
Firebase Realtime Database Security Rules allow you to define precise permissions based on the user who is currently logged in.
Meet the 'auth' Variable
Inside your security rules, Firebase provides a special auth variable. This variable contains information about the currently authenticated user.
auth.uid: The unique ID of the logged-in user.auth.token: An object containing custom claims and other token details (e.g., email).
If no user is logged in, auth will be null.
All lessons in this course
- Understanding Security Rules Syntax
- User-Based Access Control
- Validating Data with Rules
- Testing & Debugging Security Rules