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Connect a Flutter Application to a WebSocket

Tiempo de lectura: < 1 minuto

Today we are going to learn how we can connect a Flutter APP to a WebSocket quickly and simply.

Step 1: Flutter Project Setup

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flutter create my_app
flutter create my_app
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:

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flutter pub add web_socket_channel
flutter pub add web_socket_channel
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

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cd my_app
cd my_app
   cd my_app
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flutter run
flutter run
   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.

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