Firebase Dart Admin Auth SDK
  • Firebase Dart Admin Auth SDK
    • Introduction
    • Getting Started
      • Installation
      • Initialize Firebase
    • User Management
      • Create User With Email and Password
      • Update Current User
      • Sign In With Credential
      • Sign In With Custom Token
      • Sign in with Email Link
      • Sign In Anonymously
      • Sign Out
      • Sign In With Redirect
      • Sign In With Popup
      • Sign in with Phone Number
      • Sign In With Email and Password
    • User Profile & Data
      • Update Profile
      • Get ID Token
      • Get ID Token Result
      • Reload user
      • Delete User
    • Email & Password Actions
      • Apply Action Code
      • Send Email Verification
      • Send Password Reset Email
      • Update Password
      • Verify Before Update Email
      • Verify Password Reset Code
      • Send Password Reset Email
      • Send Sign-in Link To Email
      • Confirm Password Reset
      • Check Action Code
    • Authentication State
      • Before Auth State Changed
      • On ID Token Changed
      • On Auth State Changed
    • Credential Management
      • Is Sign In With Email Link
      • Unlink Provider
      • Link With Credential
      • Fetch Sign In Methods For Email
      • Link With Popup
      • Link With Phone Number
    • Initialization & Configuration
      • Set Persistence
      • Connect Emulator
      • Use Device Language
      • Set Language Code
      • Initialize Recaptcha Config
      • Get Auth
      • Initialize Auth
    • Multi-Factor Authentication
      • Get Multi-Factor Resolver
    • OAuth and Third-party Auth
      • Generate Custom Token
      • Get Redirect Result
      • Revoke Access Token
    • Utility Functions
      • Get Additional User Info
      • Parse Action Code URL
    • Examples and Tutorials
    • Contributing
    • FAQs
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  1. Firebase Dart Admin Auth SDK
  2. Authentication State

On ID Token Changed

Use the onIdTokenChanged method to listen for changes in the ID token, such as when the token is refreshed or changes due to user sign-in or sign-out.

Method

final user = await FirebaseApp.firebaseAuth?.onIdTokenChanged();

Parameters

  • None

Return

  • User?: Returns the currently authenticated user. If no user is signed in, it returns null.

This method provides a stream of user authentication state changes, allowing you to respond to changes in the user's ID token, ensuring that your application stays up to date with the user's authentication status.

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Last updated 6 months ago