Firebase Admin Go SDK v3.0.0

Authentication

• CustomToken(), CustomTokenWithClaims() and VerifyIDToken()
  functions now take a Context as the first argument.

Firebase Admin Go SDK v2.7.0

• The auth and messaging packages now provide a set of new functions for checking various error conditions (e.g. auth.IsIDTokenRevoked(), messaging.IsInvalidArgument() etc).

Cloud Messaging

• Added the MutableContent field to the messaging.Aps type. This can be used to set the mutable-content property when sending FCM messages to APNs targets.
• Added support for specifying arbitrary key-value fields in the Aps type.
• Improved error handling in the messaging API. The returned errors now contain additional details.

Firebase Admin Go SDK v2.6.1

Version support

• [added] Added support for Go 1.6.

FCM

• [changed] Fixed a bug in the UnsubscribeFromTopic() function.

Auth

• [changed] Improved the error message returned by GetUser(),
  GetUserByEmail() and GetUserByPhoneNumber() APIs in auth package.

Firebase Admin Go SDK v2.6.0

• A new db package that facilitates basic data manipulation operations (create, read, update and delete), conditional updates (transactions) and advanced queries. Currently, this API does not support realtime event listeners.
• Updated all packages to import the standard context package available in golang1.7 and above.

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.