WebSocketUpgrade class final

A Result indicating that a duplex stream connection (e.g., WebSocket) has been established.

WebSocketUpgrade chatHandler(Request req) {
  return WebSocketUpgrade((webSocket) async {
    // The WebSocket is now active
    webSocket.sendText('Welcome to chat!');

    await for (final event in webSocket.events) {
      if (event is TextDataReceived) {
        // Broadcast message to all connected clients
        broadcastMessage(event.text);
      }
    }
  });
}