dox_websocket

WebSocket routes for Dox apps, with rooms and a Redis adapter for many isolates.

Part of Dox, a web backend framework for Dart, like Laravel. Source code: github.com/dartondox/dox.

Install

dart pub add dox_websocket

Dox 3.x is in alpha (3.0.0-alpha.x). The API can still change before the stable release.

Use it

Start the WebSocket server in a service:

import 'package:dox_core/dox_core.dart';
import 'package:dox_websocket/dox_websocket.dart';

class WebsocketService implements DoxService {
  @override
  void setup() {
    WebsocketServer(Dox()); // one isolate. For many, add WebsocketRedisAdapter.
  }
}

Add a route and a controller:

class ChatController {
  void intro(WebsocketEmitter emitter, dynamic message) {
    emitter.room('chat').emitExceptSender('intro', message);
  }
}

ChatController chat = ChatController();

Route.websocket('ws', (WebsocketEvent event) {
  event.on('intro', chat.intro);
});

The client sends JSON text like {"event": "intro", "message": "hi"} to ws://127.0.0.1:3000/ws.

Features

Route.websocket(path, callback) with middleware, like other routes.
Rooms. The client joins with the built-in joinRoom event.
emit, emitExceptSender and emitToSender.
WebsocketRedisAdapter sends each message to all isolates and all servers.
A JavaScript client: @dartondox/websocket.

An app with a WebSocket route runs on the dart:io server, because the native server can not upgrade connections yet. For the official Socket.IO clients, use dox_socketio.

Documentation

License

MIT. See LICENSE.