如何使用Socket.I从nodeJS接收python中的事件

Question

我正在尝试使用从Express服务器接收事件套接字.io我的python客户端，但什么也没发生。你知道吗

这是我的python客户端：

import socketio
sio = socketio.Client()
sio.connect("http://localhost:5000/")
print('my sid is', sio.sid)

@sio.event
def message(data):
    print('I received a message!')

@sio.on('my message')
def on_message(data):
    print('I received a message!')

这是我的服务器：

const express = require('express');
const connectDB = require('./config/db');
const chat = require('./routes/api/ChatAPI');
const app = express();
const server = require('http').createServer(app);
const io = require('socket.io')(server);

//connect Database
connectDB();
app.use(express.json({ extended: false }));
app.get('/', (req, res) => res.send('API RUNNING'));
app.use('/api/chat', chat);

const PORT = process.env.PORT || 5000;

server.listen(PORT, function(){
  console.log('listening on port ' + PORT);

  io.on('connection', function (socket) {
    console.log("USER CONNECTED...");
  });
});

我有一个在/api/chat上的路由，当我发布聊天项目时，我会向服务器发送一个emmit，如下所示：

router.post('/', async (req, res) => {
  console.log(req.body);
  const chat1 = await Chat.findOne({
    otherID: req.body.otherID,
    ID: req.body.ID
  });
  const chat2 = await Chat.findOne({
    otherID: req.body.ID,
    ID: req.body.otherID
  });
  if (chat1) {
    chat1.chat = [...chat1.chat,req.body.chat];
    chat1.save();
  } else if (chat2) {
    chat2.chat = [...chat2.chat,req.body.chat];
    chat2.save();
  } else {
    const newChat = new Chat({
      ID: req.body.ID,
      otherID: req.body.otherID,
      chat: req.body.chat
    });
    newChat
      .save()
      .then(post => res.json(post))
      .catch(err => console.log(err));
  }
  io.emit('message', req.body);
  res.status(200).json({post:"success"});  
});

但是io.发射我的python客户端没有检测到消息，我在请求上得到响应，但在套接字上没有，有人知道我的代码有什么问题吗？你知道吗