Today we are going to learn how we can connect a Flutter APP to a WebSocket quickly and simply.
Step 1: Flutter Project Setup
flutter create my_app
Replace «my_app» with the name you want for your project.
We will use the web_socket_channel library: https://pub.dev/packages/web_socket_channel
To add the dependency, run:
flutter pub add web_socket_channel
Run flutter pub get to install the dependencies.
Socket Configuration:
Create the file named websocket_service.dart
Flutter UI Configuration
Reemplaza el contenido del archivo lib/main.dart con el siguiente código de Flutter:
Asegúrate de ajustar la URL del canal WebSocket (IOWebSocketChannel.connect) para coincidir con la dirección IP de tu servidor FastAPI.
Step 3: Run the Flutter Application
cd my_app
flutter run
This will start your Flutter application and connect it to the FastAPI server via WebSocket. The application will display the connection status and allow sending messages to the server.
That’s it! Now you have a Flutter application connected to a FastAPI server via WebSocket.
