Does this package work for node client?

[dukeliberal]

I build one nest server using socket.io, and try to use socket.io-client for nodejs client, the socket connected, but server can't communicate with client. Can some guys support this for me?

Enviroments

• [email protected]
• socket.io@^4.0.1
• socket.io-client@^4.0.1

Server

import {
  SubscribeMessage,
  WebSocketGateway,
  WebSocketServer,
  WsResponse,
  MessageBody,
  ConnectedSocket,
  OnGatewayConnection,
  OnGatewayDisconnect,
} from '@nestjs/websockets';

import { Socket, Server } from 'socket.io';

@WebSocketGateway(3026, { transports: ['websocket'], upgrade: false })
export class EventsGateway implements OnGatewayConnection, OnGatewayDisconnect {
  @WebSocketServer()
  server: Server;

  public connectedSockets: Socket[] = [];

  async handleConnection(@ConnectedSocket() client: Socket) {
    try {
      const hasConnect =
        this.connectedSockets.findIndex(p => p.id === client.id) > -1;
      if (hasConnect) {
        this.connectedSockets = this.connectedSockets.filter(
          p => p.id !== client.id,
        );
      }

      console.log(client.id);

      this.connectedSockets.push(client);
      this.broadcastMessage('testing', 'msg');
    } catch (error) {
      console.log('error');
    }
  }

  handleDisconnect(@ConnectedSocket() client: any) {
    this.connectedSockets = this.connectedSockets.filter(
      p => p.id !== client.id,
    );
  }

  @SubscribeMessage('events')
  handleEvent(@MessageBody() data: string, @ConnectedSocket() client: Socket) {
    console.log(data, 'subscribe');
    client.emit('message', '======');
    return 'server return';
  }

  broadcastMessage(event: string, payload: any) {
    for (const client of this.connectedSockets) {
      client.send(event, payload);
      client.emit(event, payload);
      client.broadcast.emit(event, payload);
    }

    this.server.emit(event, payload);
  }
}

Client

const io = require('socket.io-client');

const socket = io('http://localhost:3026', { transports: ['websocket'] });

socket.on('testing', function () {
  console.log('testing');
  socket.emit('events', 'hello', (data) => {
    console.log(data);
  });
});

socket.on('testing', function () {
  console.log('testing');
});

[darrachequesne]

I think that's because @nestjs/websockets does include socket.io@2, which is not compatible with socket.io-client@4: nestjs/nest#5676

Reference: https://docs.nestjs.com/websockets/gateways#installation