Firebase Admin Node.js SDK v5.3.0

• SDK now retries outbound HTTP calls on all low-level I/O errors.

Authentication

• A new setCustomUserClaims() method for setting custom claims on user accounts. Custom claims set via this method become available on the ID tokens of the corresponding users when they sign in. To learn how to use this API for controlling access to Firebase resources, see Control Access with Custom Claims and Security Rules.
• A new listUsers() method for listing all the users in a Firebase project in batches.

Storage

• Declared a more concrete TypeScript return type (Bucket) for the bucket() method in the {{storage}} API.