Firebase Admin Python SDK v2.9.1

Cloud Messaging

• [changed] Improved error handling in FCM by mapping more server-side
  errors to client-side error codes. See documentation.
• [changed] The messaging module now supports specifying an HTTP timeout
  for all egress requests. Pass the httpTimeout option
  to firebase_admin.initialize_app() before invoking any functions in
  messaging.

Firebase Admin Python SDK v2.9.0

Firebase Cloud Messaging

• A new firebase_admin.messaging
  module for sending messaging messages and managing topic subscriptions.
• A new send()
  function for sending messaging messages.
• A new subscribe_to_topic()
  function for subscribing a list of device registration tokens to a
  messaging topic.
• A new unsubscribe_from_topic()
  function for unsubscribing a list of device registration tokens from a
  messaging topic.

Firebase Auth

• The verify_id_token()
  function now accepts an optional check_revoked parameter. When True, an
  additional check is performed to see whether the token has been revoked.
• A new revoke_refresh_tokens()
  function to invalidate all tokens issued to a user.
• A new tokens_valid_after_timestamp property has been added to the
  UserRecord
  class to indicate the time before which tokens are not valid.

Firebase Admin Python SDK v2.8.0

Initialization

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

Database

• The db.Reference.get() method now accepts an optional shallow argument. If set to True this will cause the SDK to execute a shallow read, which does not retrieve the child node values of the current reference.

Firebase Admin Python SDK v2.7.0

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

Firebase Admin Python SDK v2.6.0

Authentication

• Added the list_users() function to the firebase_admin.auth module. This function enables listing or iterating over all user accounts in a Firebase project.
• Added the set_custom_user_claims() function to the firebase_admin.auth module. This function enables setting custom claims on a Firebase user. The custom claims can be accessed via that user's ID token.

Database

• Updated the start_at(), end_at() and equal_to() methods of the db.Query class so they can accept empty string arguments.

Firebase Admin Python SDK v2.5.0

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

Firebase Admin Python SDK v2.4.0

• The db.Reference class now has a get_if_changed() method, which retrieves a database value only if the value has changed since last read.
• The options dictionary passed to initialize_app() function can now contain an httpTimeout option, which sets the timeout (in seconds) for outbound HTTP connections started by the SDK.

Firebase Admin Python SDK v2.3.0

Firebase Database

• You can now get the ETag value of a database reference by passing etag=True to the get() method of a db.Reference object.
• The db.Reference class now has a set_if_unchanged() method, which you can use to write to a database location only when the location has the ETag value you specify.
• Fixed an issue with the transaction() method that prevented you from updating scalar values in a transaction.

Firebase Admin Python SDK v2.2.0

• A new Cloud Storage API that facilitates accessing Google Cloud Storage buckets using the google-cloud-storage library.

Authentication

• A new user management API that allows provisioning and managing Firebase users from Python applications. This API adds get_user(), get_user_by_email(), get_user_by_phone_number(), create_user(), update_user() and delete_dser() methods to the firebase_admin.auth

Database

• The db.Reference class now exposes a transaction() method, which can be used to execute atomic updates on database references.

Firebase Admin Python SDK v2.1.1

• Constructors of Certificate and RefreshToken credential types can now be invoked with either a file path or a parsed JSON object. This facilitates the consumption of service account credentials and refresh token credentials from sources other than the local file system.
• Better integration with the google-auth library for making authenticated HTTP requests from the SDK.