dot_auth 1.0.3

A powerful Flutter authentication package with phone number OTP verification using Firebase.

Dot Auth 🔐 https://img.shields.io/pub/v/dot_auth.svg https://img.shields.io/badge/License-MIT-green.svg

A powerful and reusable Flutter authentication package with phone number OTP verification using Firebase. Built with Riverpod for state management and GoRouter for navigation.

Table of Contents Features

Installation

Quick Start

API Reference

Authentication State Provider

Current User Provider

Authentication Status Provider

Phone Authentication Provider

Methods (Notifiers)

Auth State Notifier Methods

Phone Auth Notifier Methods

Complete Usage Examples

AuthStatus Enum

Quick Reference Card

Features ✅ Phone Authentication - OTP verification with Firebase

✅ Riverpod Integration - Clean and testable state management

✅ GoRouter Support - Declarative routing with auth guards

✅ Responsive Design - ScreenUtil for adaptive UI

✅ Customizable Theme - Easy to match your brand

✅ Type Safety - Full type-safe models and providers

✅ Ready-to-use UI - Beautiful pre-built screens

Installation Add to your pubspec.yaml:

yaml dependencies: dot_auth: ^1.0.0 firebase_core: ^3.0.0 firebase_auth: ^5.0.0 flutter_riverpod: ^2.5.0 go_router: ^14.0.0 flutter_screenutil: ^5.9.0 Then run:

bash flutter pub get Quick Start

1. Setup Firebase Follow the Firebase setup guide for your platform.

2. Initialize in your app dart import 'package:flutter/material.dart'; import 'package:firebase_core/firebase_core.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; import 'package:flutter_screenutil/flutter_screenutil.dart'; import 'package:dot_auth/dot_auth.dart'; import 'firebase_options.dart';

void main() async { WidgetsFlutterBinding.ensureInitialized();

// Initialize ScreenUtil await ScreenUtil.ensureScreenSize();

// Initialize Firebase await Firebase.initializeApp( options: DefaultFirebaseOptions.currentPlatform, );

runApp(const ProviderScope(child: MyApp())); } 3. Configure Router dart class MyApp extends ConsumerWidget { const MyApp({super.key});

@override Widget build(BuildContext context, WidgetRef ref) { final router = AuthRouter.createRouter( ref: ref, homeRoute: '/home', homeBuilder: (context, state) => const HomePage(), );

return ScreenUtilInit(
  designSize: const Size(360, 690),
  minTextAdapt: true,
  splitScreenMode: true,
  builder: (_, child) {
    return MaterialApp.router(
      title: 'My App',
      theme: authTheme(),
      routerConfig: router,
      debugShowCheckedModeBanner: false,
    );
  },
);

} }

class HomePage extends ConsumerWidget { const HomePage({super.key});

@override Widget build(BuildContext context, WidgetRef ref) { final user = ref.watch(currentUserProvider);

return Scaffold(
  appBar: AppBar(
    title: const Text('Home'),
    actions: [
      IconButton(
        icon: const Icon(Icons.logout),
        onPressed: () async {
          await ref.read(authStateProvider.notifier).signOut();
          if (context.mounted) {
            context.pushReplacement('/phone');
          }
        },
      ),
    ],
  ),
  body: Center(
    child: Text('Welcome ${user?.phoneNumber ?? "User"}'),
  ),
);

} } API Reference Authentication State Provider (authStateProvider) The main provider for authentication state. Watch this to get all auth-related information.

dart final authState = ref.watch(authStateProvider); Properties Property Type Description status AuthStatus Current authentication status (initial, loading, authenticated, unauthenticated, error) isAuthenticated bool true if user is logged in isLoading bool true if authentication is in progress isUnauthenticated bool true if user is not logged in user UserModel? Current user data or null errorMessage String? Error message if authentication failed User Details (from authState.user) Property Type Description uid String Unique user ID phoneNumber String? User's phone number email String? User's email address displayName String? User's display name photoURL String? User's photo URL creationTime DateTime? Account creation time lastSignInTime DateTime? Last login time isEmailVerified bool Email verification status isPhoneVerified bool Phone verification status Usage Examples dart Widget build(BuildContext context, WidgetRef ref) { final authState = ref.watch(authStateProvider);

// Check if user is logged in if (authState.isAuthenticated) { return Text('Welcome ${authState.user?.phoneNumber}'); }

// Show loading indicator if (authState.isLoading) { return const CircularProgressIndicator(); }

// Show error if (authState.errorMessage != null) { return Text('Error: ${authState.errorMessage}'); }

return const Text('Please login'); } Current User Provider (currentUserProvider) A simplified provider that only returns the current user.

dart final user = ref.watch(currentUserProvider); User Properties Property Type Description uid String Unique user ID phoneNumber String? User's phone number email String? User's email address displayName String? User's display name photoURL String? User's photo URL creationTime DateTime? Account creation time lastSignInTime DateTime? Last login time isEmailVerified bool Email verification status isPhoneVerified bool Phone verification status Usage Examples dart Widget build(BuildContext context, WidgetRef ref) { final user = ref.watch(currentUserProvider);

if (user == null) { return const Text('Not logged in'); }

return Column( children: [ Text('Phone: ${user.phoneNumber}'), Text('UID: ${user.uid}'), Text('Verified: ${user.isPhoneVerified}'), Text('Email: ${user.email ?? "No email"}'), Text('Name: ${user.displayName ?? "No name"}'), ], ); } Authentication Status Provider (isAuthenticatedProvider) A simple boolean provider for authentication status.

dart final isAuthenticated = ref.watch(isAuthenticatedProvider); // Returns: true if user is logged in, false otherwise Usage Examples dart Widget build(BuildContext context, WidgetRef ref) { final isAuthenticated = ref.watch(isAuthenticatedProvider);

return isAuthenticated ? const Text('Welcome back!') : const Text('Please login'); } Phone Authentication Provider (phoneAuthProvider) Manages phone authentication state during the OTP process.

dart final phoneAuth = ref.watch(phoneAuthProvider); Properties Property Type Description phoneNumber String? Entered phone number verificationId String? Firebase verification ID otpCode String? Entered OTP code isCodeSent bool Whether verification code was sent isLoading bool Whether loading is in progress error String? Error message if any resendToken int? Resend token for Firebase Usage Examples dart Widget build(BuildContext context, WidgetRef ref) { final phoneAuth = ref.watch(phoneAuthProvider);

return Column( children: [ if (phoneAuth.isLoading) const CircularProgressIndicator(), if (phoneAuth.error != null) Text('Error: ${phoneAuth.error}', style: TextStyle(color: Colors.red)), if (phoneAuth.isCodeSent) Text('Code sent to ${phoneAuth.phoneNumber}'), Text('Phone: ${phoneAuth.phoneNumber ?? "Not set"}'), Text('Code Sent: ${phoneAuth.isCodeSent}'), ], ); } Methods (Notifiers) Auth State Notifier Methods Get the notifier:

dart final authNotifier = ref.read(authStateProvider.notifier); Method Description Returns signOut() Signs out the current user Future

// Set custom loading state ref.read(authStateProvider.notifier).setLoading();

// Set error message ref.read(authStateProvider.notifier).setError('Authentication failed');

// After sign out, navigate to login if (context.mounted) { context.go('/login'); } Phone Auth Notifier Methods Get the notifier:

dart final phoneNotifier = ref.read(phoneAuthProvider.notifier); Method Description Returns setPhoneNumber(String number) Sets phone number void setVerificationId(String id) Sets verification ID void setLoading(bool loading) Sets loading state void setError(String error) Sets error message void clearError() Clears error message void reset() Resets all phone auth state void setOtp(String otp) Sets OTP code void Usage Examples dart // Set phone number ref.read(phoneAuthProvider.notifier).setPhoneNumber('[phone]');

// Set verification ID from Firebase ref.read(phoneAuthProvider.notifier).setVerificationId('verification_id_here');

// Set loading state ref.read(phoneAuthProvider.notifier).setLoading(true);

// Set error message ref.read(phoneAuthProvider.notifier).setError('Invalid phone number');

// Clear error ref.read(phoneAuthProvider.notifier).clearError();

// Reset all state (use after OTP verification) ref.read(phoneAuthProvider.notifier).reset();

// Set OTP code ref.read(phoneAuthProvider.notifier).setOtp('123456'); Complete Usage Examples

1. Check Authentication Status dart Widget build(BuildContext context, WidgetRef ref) { final isAuthenticated = ref.watch(isAuthenticatedProvider); final authState = ref.watch(authStateProvider);

if (authState.isLoading) { return const Center(child: CircularProgressIndicator()); }

if (isAuthenticated) { return Center(child: Text('Welcome ${authState.user?.phoneNumber}')); }

return const Center(child: Text('Please login')); } 2. Get User Information dart Widget build(BuildContext context, WidgetRef ref) { final user = ref.watch(currentUserProvider);

return Card( margin: const EdgeInsets.all(16), child: Padding( padding: const EdgeInsets.all(16), child: Column( crossAxisAlignment: CrossAxisAlignment.start, children: [ Text('UID: ${user?.uid ?? "N/A"}', style: const TextStyle(fontSize: 16)), const SizedBox(height: 8), Text('Phone: ${user?.phoneNumber ?? "N/A"}', style: const TextStyle(fontSize: 16)), const SizedBox(height: 8), Text('Email: ${user?.email ?? "N/A"}', style: const TextStyle(fontSize: 16)), const SizedBox(height: 8), Text('Name: ${user?.displayName ?? "N/A"}', style: const TextStyle(fontSize: 16)), const SizedBox(height: 8), Text('Phone Verified: ${user?.isPhoneVerified}', style: const TextStyle(fontSize: 14)), Text('Email Verified: ${user?.isEmailVerified}', style: const TextStyle(fontSize: 14)), ], ), ), ); } 3. Handle Loading and Error States dart Widget build(BuildContext context, WidgetRef ref) { final authState = ref.watch(authStateProvider);

switch (authState.status) { case AuthStatus.loading: return const Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ CircularProgressIndicator(), SizedBox(height: 16), Text('Loading...'), ], ), );

case AuthStatus.authenticated:
  return Center(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        const Icon(Icons.check_circle, size: 64, color: Colors.green),
        const SizedBox(height: 16),
        Text('Welcome ${authState.user?.phoneNumber}'),
      ],
    ),
  );
  
case AuthStatus.error:
  return Center(
    child: Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        const Icon(Icons.error, size: 64, color: Colors.red),
        const SizedBox(height: 16),
        Text('Error: ${authState.errorMessage}'),
        const SizedBox(height: 16),
        ElevatedButton(
          onPressed: () {
            // Retry logic
          },
          child: const Text('Retry'),
        ),
      ],
    ),
  );
  
default:
  return const Center(child: Text('Please login'));

} } 4. Listen to Authentication Changes dart class MyWidget extends ConsumerStatefulWidget { const MyWidget({super.key});

@override ConsumerState

class _MyWidgetState extends ConsumerState

// Listen to auth changes
ref.listen(authStateProvider, (previous, next) {
  if (next.isAuthenticated) {
    print('User logged in: ${next.user?.phoneNumber}');
    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(content: Text('Logged in successfully!')),
    );
  } else if (next.isUnauthenticated) {
    print('User logged out');
    ScaffoldMessenger.of(context).showSnackBar(
      const SnackBar(content: Text('Logged out')),
    );
  } else if (next.errorMessage != null) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text('Error: ${next.errorMessage}')),
    );
  }
});

}

@override Widget build(BuildContext context, WidgetRef ref) { final authState = ref.watch(authStateProvider); return Scaffold( body: Center( child: Text('Status: ${authState.status}'), ), ); } } 5. Sign Out with Confirmation dart Widget build(BuildContext context, WidgetRef ref) { return ElevatedButton( onPressed: () async { // Show confirmation dialog final shouldSignOut = await showDialog

  if (shouldSignOut == true) {
    await ref.read(authStateProvider.notifier).signOut();
    if (context.mounted) {
      context.go('/login');
    }
  }
},
style: ElevatedButton.styleFrom(
  backgroundColor: Colors.red,
  foregroundColor: Colors.white,
),
child: const Text('Sign Out'),

); } 6. Phone Authentication State dart Widget build(BuildContext context, WidgetRef ref) { final phoneAuth = ref.watch(phoneAuthProvider);

return Column( children: [ if (phoneAuth.isLoading) const LinearProgressIndicator(),

  if (phoneAuth.error != null)
    Container(
      padding: const EdgeInsets.all(12),
      margin: const EdgeInsets.all(8),
      decoration: BoxDecoration(
        color: Colors.red[50],
        borderRadius: BorderRadius.circular(8),
        border: Border.all(color: Colors.red),
      ),
      child: Text(
        phoneAuth.error!,
        style: const TextStyle(color: Colors.red),
      ),
    ),
    
  if (phoneAuth.isCodeSent)
    Container(
      padding: const EdgeInsets.all(12),
      margin: const EdgeInsets.all(8),
      decoration: BoxDecoration(
        color: Colors.green[50],
        borderRadius: BorderRadius.circular(8),
        border: Border.all(color: Colors.green),
      ),
      child: Column(
        children: [
          const Text('Verification code sent!'),
          Text('To: ${phoneAuth.phoneNumber}'),
        ],
      ),
    ),
    
  const SizedBox(height: 16),
  Text('Phone: ${phoneAuth.phoneNumber ?? "Not set"}'),
  Text('Code Sent: ${phoneAuth.isCodeSent}'),
  Text('Loading: ${phoneAuth.isLoading}'),
],

); } 7. Protected Route Example dart class ProtectedRoute extends ConsumerWidget { final Widget child;

const ProtectedRoute({super.key, required this.child});

@override Widget build(BuildContext context, WidgetRef ref) { final isAuthenticated = ref.watch(isAuthenticatedProvider); final authState = ref.watch(authStateProvider);

if (authState.isLoading) {
  return const Scaffold(
    body: Center(child: CircularProgressIndicator()),
  );
}

if (!isAuthenticated) {
  // Redirect to login
  WidgetsBinding.instance.addPostFrameCallback((_) {
    context.pushReplacement('/login');
  });
  return const Scaffold(
    body: Center(child: CircularProgressIndicator()),
  );
}

return child;

} }

// Usage: // In your router: GoRoute( path: '/profile', builder: (context, state) => const ProtectedRoute( child: ProfilePage(), ), ), 8. Complete App with Custom Router dart import 'package:flutter/material.dart'; import 'package:flutter_riverpod/flutter_riverpod.dart'; import 'package:go_router/go_router.dart'; import 'package:dot_auth/dot_auth.dart';

class MyApp extends ConsumerWidget { const MyApp({super.key});

@override Widget build(BuildContext context, WidgetRef ref) { final authState = ref.watch(authStateProvider);

final router = GoRouter(
  initialLocation: '/login',
  redirect: (context, state) {
    final isAuthenticated = authState.isAuthenticated;
    final isLoginRoute = state.matchedLocation == '/login';
    final isOtpRoute = state.matchedLocation == '/otp';
    
    if (isAuthenticated && (isLoginRoute || isOtpRoute)) {
      return '/home';
    }
    
    if (!isAuthenticated && state.matchedLocation == '/home') {
      return '/login';
    }
    
    return null;
  },
  routes: [
    GoRoute(
      path: '/login',
      name: 'login',
      builder: (context, state) => const AuthPhone(),
    ),
    GoRoute(
      path: '/otp',
      name: 'otp',
      builder: (context, state) => const OtpScreen(),
    ),
    GoRoute(
      path: '/home',
      name: 'home',
      builder: (context, state) => const HomePage(),
      routes: [
        GoRoute(
          path: 'profile',
          name: 'profile',
          builder: (context, state) => const ProfilePage(),
        ),
      ],
    ),
  ],
);

return MaterialApp.router(
  title: 'My App',
  theme: authTheme(),
  routerConfig: router,
  debugShowCheckedModeBanner: false,
);

} } AuthStatus Enum Value Description AuthStatus.initial Initial state, not authenticated AuthStatus.loading Loading (verifying or signing in) AuthStatus.authenticated User is authenticated AuthStatus.unauthenticated User is not authenticated AuthStatus.error Error occurred Usage: dart final authState = ref.watch(authStateProvider);

switch (authState.status) { case AuthStatus.initial: return const Text('Initializing...'); case AuthStatus.loading: return const CircularProgressIndicator(); case AuthStatus.authenticated: return Text('Welcome ${authState.user?.phoneNumber}'); case AuthStatus.unauthenticated: return const Text('Please login'); case AuthStatus.error: return Text('Error: ${authState.errorMessage}'); } Quick Reference Card dart // Most commonly used - Copy these!

// 1. Check if user is logged in final isAuth = ref.watch(isAuthenticatedProvider);

// 2. Get current user final user = ref.watch(currentUserProvider);

// 3. Get full auth state final authState = ref.watch(authStateProvider);

// 4. Auth state checks authState.isAuthenticated // bool authState.isLoading // bool authState.status // AuthStatus enum

// 5. User data (from authState.user or currentUserProvider) user?.uid // String user?.phoneNumber // String? user?.email // String? user?.displayName // String? user?.photoURL // String? user?.creationTime // DateTime? user?.lastSignInTime // DateTime? user?.isEmailVerified // bool user?.isPhoneVerified // bool

// 6. Phone auth state final phoneAuth = ref.watch(phoneAuthProvider); phoneAuth.phoneNumber // String? phoneAuth.verificationId // String? phoneAuth.isCodeSent // bool phoneAuth.isLoading // bool phoneAuth.error // String?

// 7. Actions await ref.read(authStateProvider.notifier).signOut();

// 8. Navigation after sign out context.go('/login'); context.pushReplacement('/login');

Firestore Security Rules

rules_version = '2'; service cloud.firestore { match /databases/{database}/documents {

// Helper function: Check if user is authenticated
function isAuthenticated() {
  return request.auth != null;
}

// Helper function: Get user's role from users collection
function getUserRole() {
  return get(/databases/$(database)/documents/users/$(request.auth.uid)).data.userType;
}

// Helper function: Check if user is vendor
function isVendor() {
  return getUserRole() == 'vendor';
}

// Helper function: Check if user is admin
function isAdmin() {
  return getUserRole() == 'admin';
}

// Helper function: Check if user is customer
function isCustomer() {
  return getUserRole() == 'customer';
}

// Helper function: Check if user owns the document
function isOwner(userId) {
  return request.auth.uid == userId;
}

// ============================================
// USERS COLLECTION - Anyone can read, only owner can write
// ============================================
match /users/{userId} {
  allow read: if isAuthenticated();
  allow write: if isAuthenticated() && isOwner(userId);
}

// ============================================
// VENDORS COLLECTION - Vendor specific data
// ============================================
match /vendors/{vendorId} {
  // Read: Anyone authenticated can read vendor details
  allow read: if isAuthenticated();
  
  // Create: Any authenticated user can register as vendor
  allow create: if isAuthenticated();
  
  // Update: Only the vendor themselves OR admin
  allow update: if isAuthenticated() && (isOwner(vendorId) || isAdmin());
  
  // Delete: Only admin
  allow delete: if isAuthenticated() && isAdmin();
}

// ============================================
// PRODUCTS COLLECTION - Vendor products
// ============================================
match /products/{productId} {
  // Read: Anyone authenticated can view products
  allow read: if isAuthenticated();
  
  // Create: Only vendors can create products
  allow create: if isAuthenticated() && isVendor();
  
  // Update: Only the vendor who owns this product
  allow update: if isAuthenticated() && 
    (isVendor() && resource.data.vendorId == request.auth.uid) || isAdmin();
  
  // Delete: Only vendor who owns it or admin
  allow delete: if isAuthenticated() && 
    (isVendor() && resource.data.vendorId == request.auth.uid) || isAdmin();
}

// ============================================
// ORDERS COLLECTION - Customer orders
// ============================================
match /orders/{orderId} {
  // Read: Customer can read their own orders, Vendors can read orders for their products
  allow read: if isAuthenticated() && (
    resource.data.customerId == request.auth.uid ||  // Customer's own orders
    isVendor() && resource.data.vendorId == request.auth.uid ||  // Vendor's orders
    isAdmin()
  );
  
  // Create: Only customers can create orders
  allow create: if isAuthenticated() && isCustomer();
  
  // Update: Customer can update their own orders (before shipping), Vendor can update status
  allow update: if isAuthenticated() && (
    (isCustomer() && resource.data.customerId == request.auth.uid) ||
    (isVendor() && resource.data.vendorId == request.auth.uid) ||
    isAdmin()
  );
}

// ============================================
// REVIEWS COLLECTION - Product reviews
// ============================================
match /reviews/{reviewId} {
  // Read: Anyone authenticated can read reviews
  allow read: if isAuthenticated();
  
  // Create: Only customers who purchased can review
  allow create: if isAuthenticated() && isCustomer();
  
  // Update/Delete: Only review owner or admin
  allow update, delete: if isAuthenticated() && 
    (isOwner(resource.data.userId) || isAdmin());
}

// ============================================
// CATEGORIES COLLECTION - Public read, admin write
// ============================================
match /categories/{categoryId} {
  allow read: if isAuthenticated();
  allow write: if isAuthenticated() && isAdmin();
}

} }

User Service to Manage User Type

// lib/services/user_service.dart

import 'package:cloud_firestore/cloud_firestore.dart'; import 'package:firebase_auth/firebase_auth.dart';

class UserService { final FirebaseFirestore _firestore = FirebaseFirestore.instance; final FirebaseAuth _auth = FirebaseAuth.instance;

// Create/Update user document after login Future

// Check if current user is vendor Future

final doc = await _firestore.collection('users').doc(user.uid).get();
return doc.data()?['userType'] == 'vendor';

}

// Get user type Future

final doc = await _firestore.collection('users').doc(user.uid).get();
return doc.data()?['userType'] ?? 'customer';

} }

After Login -Set User Type

// In your phone_screen.dart or main.dart after successful login

import 'package:cloud_firestore/cloud_firestore.dart';

// After FirebaseAuth sign in Future

if (!userDoc.exists) {
  // First time login - create as customer
  await UserService().setUserType(user.uid, 'customer');
}

} }

Vendor Registration - create Vendor Document // lib/screens/register_vendor.dart

Future

// Update user type to vendor await UserService().setUserType(user.uid, 'vendor');

// Create vendor document await FirebaseFirestore.instance.collection('vendors').doc(user.uid).set({ 'vendorId': user.uid, 'businessName': businessName, 'phoneNumber': user.phoneNumber, 'status': 'approved', // or 'pending' 'createdAt': FieldValue.serverTimestamp(), 'totalProducts': 0, 'rating': 0, }); }

Vendor-Only Actions

// lib/screens/add_product.dart - Only vendors can add products

class AddProductScreen extends ConsumerWidget { @override Widget build(BuildContext context, WidgetRef ref) { return FutureBuilder( future: UserService().isVendor(), builder: (context, snapshot) { if (snapshot.connectionState == ConnectionState.waiting) { return const Scaffold(body: Center(child: CircularProgressIndicator())); }

    if (snapshot.data != true) {
      return Scaffold(
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const Icon(Icons.block, size: 64),
              const SizedBox(height: 16),
              const Text('Only vendors can add products'),
              ElevatedButton(
                onPressed: () => Navigator.pushNamed(context, '/register-vendor'),
                child: const Text('Register as Vendor'),
              ),
            ],
          ),
        ),
      );
    }
    
    return _AddProductForm();
  },
);

} }

class _AddProductForm extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: const Text('Add Product')), body: Padding( padding: const EdgeInsets.all(16), child: Column( children: [ TextFormField( decoration: const InputDecoration(labelText: 'Product Name'), ), const SizedBox(height: 16), TextFormField( decoration: const InputDecoration(labelText: 'Price'), keyboardType: TextInputType.number, ), const SizedBox(height: 16), TextFormField( decoration: const InputDecoration(labelText: 'Description'), maxLines: 3, ), const SizedBox(height: 24), ElevatedButton( onPressed: () async { final user = FirebaseAuth.instance.currentUser;

            // Security rules will verify this is a vendor
            await FirebaseFirestore.instance.collection('products').add({
              'name': 'Product Name',
              'price': 100,
              'description': 'Description',
              'vendorId': user!.uid,
              'createdAt': FieldValue.serverTimestamp(),
            });
            
            ScaffoldMessenger.of(context).showSnackBar(
              const SnackBar(content: Text('Product added!')),
            );
          },
          child: const Text('Add Product'),
        ),
      ],
    ),
  ),
);

} }

Riverpod Provider for User Type

// lib/providers/user_provider.dart

import 'package:flutter_riverpod/flutter_riverpod.dart'; import '../services/user_service.dart';

final userTypeProvider = FutureProvider

final isVendorProvider = FutureProvider

// Auto-refresh when auth state changes final vendorStatusProvider = Provider

return isVendorAsync.when( data: (isVendor) => isVendor, loading: () => false, error: (_, __) => false, ); });

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License MIT License - see LICENSE file for details.

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