deo_emerges 0.1.3

Flutter networking package built on Dio with concurrent requests, error handling, and state management integration.

Deo Emerges

An advanced Flutter networking package built on top of Dio, offering concurrent request handling, comprehensive error management, and extensive features for modern Flutter applications.

Features

• Concurrent Request Handling: Make multiple HTTP requests simultaneously with efficient connection management
• Comprehensive Error Handling: Detailed error messages and codes with retry mechanisms using exponential backoff
• Request Cancellation: Gracefully cancel ongoing HTTP requests
• Interceptors: Modify requests and responses with built-in interceptors for logging, caching, authentication, and more
• Customizable Timeout Settings: Configure connection, read, and write timeout durations
• Secure Communication: Built-in support for SSL pinning and secure data transmission
• State Management Integration: Seamless compatibility with Provider, Riverpod, and Bloc
• Performance Optimization: Minimal overhead for fast and efficient networking operations

Installation

Add this to your package's pubspec.yaml file:

dependencies:
  deo_emerges: ^0.1.3

Then run:

flutter pub get

Usage

Basic Usage

import 'package:deo_emerges/deo_emerges.dart';

void main() async {
  // Create a client
  final client = DeoClient(
    config: DeoConfig(
      baseUrl: 'https://api.example.com',
      connectTimeout: Duration(seconds: 10),
      receiveTimeout: Duration(seconds: 10),
      sendTimeout: Duration(seconds: 10),
    ),
  );
  
  // Make a GET request
  try {
    final response = await client.get<Map<String, dynamic>>('/users');
    print(response.data);
  } catch (e) {
    if (e is DeoError) {
      print('Error: ${e.message}');
    }
  }
}

Concurrent Requests

final responses = await client.concurrent([
  () => client.get('/users'),
  () => client.get('/posts'),
  () => client.get('/comments'),
]);

Request Cancellation

// Create a request with a cancel token
final response = await client.get('/users', cancelToken: 'userRequest');

// Cancel the request
client.cancelRequest('userRequest');

Using with Provider

final adapter = DeoProviderAdapter(DeoClient());

// In your widget
final result = await adapter.execute(() => adapter.client.get('/users'));

// Check loading state
if (adapter.isLoading) {
  return CircularProgressIndicator();
}

// Check for errors
if (adapter.error != null) {
  return Text('Error: ${adapter.error!.message}');
}

Using with Riverpod

// Define a provider
final apiProvider = StateNotifierProvider<DeoRiverpodAdapter, DeoState>((ref) {
  return DeoRiverpodAdapter(DeoClient());
});

// In your widget
final apiState = ref.watch(apiProvider);
final apiNotifier = ref.read(apiProvider.notifier);

// Execute a request
final result = await apiNotifier.execute(() => apiNotifier.client.get('/users'));

// Check state
if (apiState.isLoading) {
  return CircularProgressIndicator();
}

if (apiState.error != null) {
  return Text('Error: ${apiState.error!.message}');
}

Using with Bloc

class UserBloc extends Bloc<UserEvent, UserState> {
  final DeoBlocAdapter _api = DeoBlocAdapter(DeoClient());
  
  UserBloc() : super(UserInitial()) {
    on<FetchUsers>((event, emit) async {
      await _api.execute(() => _api.client.get('/users'));
      
      // The state is automatically updated by the adapter
      if (_api.state.isLoading) {
        emit(UserLoading());
      } else if (_api.state.error != null) {
        emit(UserError(_api.state.error!));
      } else {
        emit(UserLoaded(users));
      }
    });
  }
}

Advanced Configuration

Custom Interceptors

final client = DeoClient();

// Add a custom interceptor
client.addInterceptor(MyCustomInterceptor());

SSL Pinning

final client = DeoClient(
  config: DeoConfig(
    validateCertificate: true,
    certificates: ['certificate1', 'certificate2'],
  ),
);

Author

Developed by Tisankan

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.