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Auth interface

Interface representing Firebase Auth service.

Signature:

export interface Auth 

Description

See Firebase Authentication for a full guide on how to use the Firebase Auth service.

Properties

Property	Type	Description
config	Config	The Config used to initialize this instance.
currentUser	User | null	The currently signed-in user (or null).
emulatorConfig	EmulatorConfig | null	The current emulator configuration (or null).
languageCode	string | null	The Auth instance's language code.
name	string	The name of the app associated with the Auth service instance.
settings	AuthSettings	The Auth instance's settings.
tenantId	string | null	The Auth instance's tenant ID.

Methods

Method	Description
onAuthStateChanged(nextOrObserver, error, completed)	Adds an observer for changes to the user's sign-in state.
onIdTokenChanged(nextOrObserver, error, completed)	Adds an observer for changes to the signed-in user's ID token.
setPersistence(persistence)	Changes the type of persistence on the Auth instance.
signOut()	Signs out the current user.
updateCurrentUser(user)	Asynchronously sets the provided user as Auth.currentUser on the Auth instance.
useDeviceLanguage()	Sets the current language to the default device/browser preference.