socket room empty

[fish-uncle]

I have such a phenomenon

When a user enters a room

When another user enters for the first time, the two will not be in the same room

The second time they enter the room, they can communicate

Then I print the log, and the socket.rooms are empty

client

const socket = io(`https://*.com?room=${props.id}`, {
    withCredentials: true,
    autoConnect: false,
    transports: ['websocket'],
})
socket.auth = {
    playerId: store.state.player.playerId,
    nickname: store.state.player.nickname,
    avatar: store.state.player.avatar,
}
socket.connect()

// some times emit
state.socket.emit('message', {
    text: state.msg,
})

server

const io = new Server(5000, {
		cors: {
			origin: [app.config.wss.origin],
			methods: ['GET', 'POST'],
			credentials: true,
		},
	})
	const chatNamespace = io.of('/')
	io.use((socket, next) => {
		socket.sessionID = socket.handshake.auth.playerId
		socket.nickname = socket.handshake.auth.nickname
		socket.avatar = socket.handshake.auth.avatar
		app.logger.info('socket-sessionID ' + socket.handshake.auth.playerId)
		next()
	})
	chatNamespace.adapter.on('join-room', (room, id) => {
		app.logger.info(`socket ${id} has joined room ${room}`)
	})
	chatNamespace.adapter.on('leave-room', (room, id) => {
		app.logger.info(`socket ${id} has leave room ${room}`)
	})
	io.on('connection', socket => {
		if (socket.handshake.query.room) {
			socket.join(socket.handshake.query.room)
			chatNamespace.to(socket.handshake.query.room).emit('message', {
				text: '加入聊天室',
				nickname: socket.nickname,
				avatar: socket.avatar,
				time: Date.now(),
			})
			app.logger.info('socket room ' + JSON.stringify(socket.rooms))
			app.logger.info('io room ' + JSON.stringify(io.rooms))
		}
		socket.on('leave', async arg => {
			app.logger.info(socket.nickname + '离开房间' + arg.roomId)
			chatNamespace.to(socket.handshake.query.room).emit('message', {
				text: '离开聊天室',
				nickname: socket.nickname,
				avatar: socket.avatar,
				time: Date.now(),
			})
		})
		socket.on('message', arg => {
			chatNamespace.to(socket.handshake.query.room).emit('message', {
				text: arg.text,
				nickname: socket.nickname,
				avatar: socket.avatar,
				time: Date.now(),
			})
		})
	})

log

2021-11-29 08:44:57,573 INFO 51977 socket-sessionID 61a422818536bccb07854d61
2021-11-29 08:44:57,573 INFO 51977 socket ui5RRxRcI_kMUEhlAAAL has joined room ui5RRxRcI_kMUEhlAAAL
2021-11-29 08:44:57,573 INFO 51977 socket ui5RRxRcI_kMUEhlAAAL has joined room all
2021-11-29 08:44:57,574 INFO 51977 socket room {}
2021-11-29 08:44:57,574 INFO 51977 io room undefined

version

"socket.io": "^4.4.0",
"socket.io-adapter": "^2.3.1",
"socket.io-client": "^4.4.0",

[fish-uncle]

Do I need to create room before joining room? How

[darrachequesne]

socket.rooms is a Set, so it's not serializable (hence your log):

> JSON.stringify(new Set([1, 2, 3]))
'{}'

The second time they enter the room, they can communicate

That sounds weird. Are you able to reproduce with a basic project https://github.com/socketio/socket.io-fiddle?

[fish-uncle]

Thank you. I already know

My main question is why the connected rooms are not the same for two visits

I've found the problem, too

The reason is the multi process of egg

Use it for the time being

egg-scripts start --daemon --title=xxxx --workers=1

solve