ThunderIDState

ThunderIDState is the reactive authentication state object provided by ThunderIDProvider. It holds the current user, loading state, and initialization status, and exposes the underlying ThunderIDClient for direct API calls.

Access ThunderIDState from any widget using ThunderIDProvider.of(context).

Setup

Wrap your app's root widget with ThunderIDProvider:

dart

import 'package:flutter/material.dart';
import 'package:thunderid_flutter/thunderid_flutter.dart';

void main() {
  runApp(
    ThunderIDProvider(
      config: ThunderIDConfig(
        baseUrl: 'https://localhost:8090',
        clientId: '<your-client-id>',
        afterSignInUrl: 'dev.thunderid.app://callback',
        afterSignOutUrl: 'dev.thunderid.app://logout',
      ),
      child: const MyApp(),
    ),
  );
}

Access ThunderIDState in any descendant widget:

dart

class ProfileView extends StatelessWidget {
  const ProfileView({super.key});

  @override
  Widget build(BuildContext context) {
    final thunder = ThunderIDProvider.of(context);
    return Text(thunder.user?.displayName ?? 'Not signed in');
  }
}

Properties

Property	Type	Description
user	User?	The currently authenticated user. null when not signed in.
isSignedIn	bool	true when user is not null.
isLoading	bool	true while the SDK is initializing or a sign-in/sign-out operation is in progress.
initialized	bool	true after the SDK has completed initialization (whether or not sign-in succeeded).
error	String?	A human-readable error message if initialization or the last auth operation failed. null on success.
client	ThunderIDClient	The underlying ThunderIDClient instance for direct API calls.

Methods

refresh()

Re-fetches the current sign-in state from the token store and updates user. Call this after a sign-in or sign-out operation that you perform manually via thunder.client.

dart

Future<void> refresh()

dart

final thunder = ThunderIDProvider.of(context);
await thunder.client.signOut();
await thunder.refresh();

note

SignOutButton and SignIn call refresh() automatically. You only need to call it directly when driving auth operations through thunder.client yourself.

setLocale(locale)

Changes the active locale for all thunderid_flutter widgets.

dart

void setLocale(String locale)

dart

final thunder = ThunderIDProvider.of(context);
thunder.setLocale('fr-FR');

Example: Conditional Rendering

Use thunder.initialized, thunder.isLoading, and thunder.isSignedIn to drive your root navigation:

dart

class RootScreen extends StatelessWidget {
  const RootScreen({super.key});

  @override
  Widget build(BuildContext context) {
    final thunder = ThunderIDProvider.of(context);

    if (!thunder.initialized || thunder.isLoading) {
      return const Scaffold(
        body: Center(child: CircularProgressIndicator()),
      );
    }

    if (thunder.error != null) {
      return Scaffold(
        body: Center(
          child: Text('Configuration error: ${thunder.error}'),
        ),
      );
    }

    return thunder.isSignedIn ? const HomeScreen() : const AuthScreen();
  }
}

Example: Accessing the Client Directly

Use thunder.client to call any ThunderIDClient method:

dart

class TokenDebugView extends StatefulWidget {
  const TokenDebugView({super.key});

  @override
  State<TokenDebugView> createState() => _TokenDebugViewState();
}

class _TokenDebugViewState extends State<TokenDebugView> {
  String _claims = '';

  @override
  void initState() {
    super.initState();
    _loadClaims();
  }

  Future<void> _loadClaims() async {
    final thunder = ThunderIDProvider.of(context);
    try {
      final token = await thunder.client.getAccessToken();
      final claims = thunder.client.decodeJwtToken(token);
      setState(() => _claims = claims.toString());
    } catch (e) {
      setState(() => _claims = 'Error: $e');
    }
  }

  @override
  Widget build(BuildContext context) => Text(_claims);
}