Firebase Admin Node.js SDK v8.3.0

Realtime Database

• Added an admin.database().getRules() method to retrieve the currently applied Realtime Database rules text.
• Added an admin.database().getRulesJSON() method to retrieve the currently applied Realtime Database rules as a
  parsed JSON object.
• Added an admin.database().setRules() method to update Realtime Database rules.
• Downgraded the dependency on the @firebase/app package to a dev dependency.

Authentication

• Implemented additional argument validation in the admin.auth().importUsers() API.

Cloud Storage

• Upgraded the @google-cloud/storage dependency to v3.0.0. This new major version drops support for Node.js versions older than v8. Since firebase-admin already supports only Node.js v8 and above, this does not have a noticeable impact on users of the Admin SDK.