Firebase Admin Go SDK v2.5.0

Firebase Cloud Messaging

• A new messaging package for sending messaging messages and managing topic subscriptions.
• A new Send() function for sending messaging messages.
• A new SubscribeToTopic() function for subscribing a list of device registration tokens to a messaging topic.
• A new UnubscribeFromTopic() function for unsubscribing a list of device registration tokens from a messaging topic.

Firebase Auth

• A new VerifyIDTokenAndCheckRevoked() function to check for revoked ID tokens.
• A new RevokeRefreshTokens() function to invalidate all refresh tokens issued to a user.
• A new property TokensValidAfterMillis has been added to the auth.UserRecord type.

Firebase Admin Go SDK v2.4.0

Initialization

• The firebase.NewApp() method can now be invoked without any arguments. This will initialize an app using Google Application Default Credentials, and firebase.Config loaded from the FIREBASE_CONFIG environment variable.

Authentication

• The user management operations in the auth package now uses the identitytoolkit/v3 library.
• The ProviderID field on auth.UserRecord type is now set to the constant value firebase.

Firebase Admin Go SDK v2.3.0

• A new InstanceID API that facilitates deleting instance IDs and associated user data from Firebase projects.

Firebase Admin Go SDK v2.2.1

• Adding the X-Client-Version to the headers in the API calls for tracking API usage.

Firebase Admin Go SDK v2.2.0

• A new user management API that supports querying and updating
  user accounts associated with a Firebase project. This adds GetUser(),
  GetUserByEmail(), GetUserByPhoneNumber(), CreateUser(), UpdateUser(),
  DeleteUser(), Users() and SetCustomUserClaims() functions to the
  auth.Client API.

Firebase Admin Go SDK v2.1.0

• A new Firestore() API that enables access to Cloud Firestore databases.

Firebase Admin Go SDK v2.0.0

• A new Cloud Storage API that facilitates accessing Google Cloud Storage buckets using the cloud.google.com/go/storage package.

Authentication

• Changed The Auth() API now accepts a Context argument. This breaking change enables passing different contexts to different services, instead of using a single context per App.

Firebase Admin Go SDK v1.0.2

• When deployed in the Google App Engine environment, the SDK can now leverage the utilities provided by the App Engine SDK to sign JWT tokens. As a result, it is now possible to initialize the Admin SDK in App Engine without a service account JSON file, and still be able to call CustomToken() and CustomTokenWithClaims().

Firebase Admin Go SDK v1.0.1

• Now uses the client options provided during SDK initialization to create the http.Client that is used to fetch public key certificates. This enables developers to use the ID token verification feature in environments like Google App Engine by providing a platform-specific http.Client using option.WithHTTPClient().

Firebase Admin Go SDK v1.0.0

• Initial release of the Admin Go SDK. See Add the Firebase Admin SDK to your Server to get started.
• You can configure the SDK to use service account credentials, user credentials (refresh tokens), or Google Cloud application default credentials to access your Firebase project.

Authentication

• The initial release includes the CustomToken(), CustomTokenWithClaims(), and VerifyIDToken() functions for minting custom authentication tokens and verifying Firebase ID tokens.