Expose data with riverpod's simple Provider

riverpod-Provider.dart

// Example 01 : Simple scallar type
final valueProvider = Provider<int>((ref) {
  return 36;
});

// Example 02
final databaseProvider = Provider((ref) => Database());

// Example 03 : Real class as dependency injection
final httpClientProvider = Provider<Dio>((ref) => Dio());

final productRepositoryProvider = Provider<ProductRepository>(
  (ref) {
    final httpClient = ref.watch(httpClientProvider);

    return ProductRepositoryImpl(httpClient);
  },
);