How to get the server room

[JanYork]

How can I get all the rooms of a socket.Server and the socket.Client information in the room like socket.io node sdk?

[zishang520]

Hello, you can refer to the following demo. Of course, you can directly check the Node.js Socket.IO documentation. The Go version of Socket.IO has an SDK that is basically consistent with the Node.js version of Socket.IO.

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/zishang520/engine.io/v2/log"
	"github.com/zishang520/engine.io/v2/types"
	"github.com/zishang520/engine.io/v2/utils"
	"github.com/zishang520/socket.io/v2/socket"
)

func main() {
	log.DEBUG = true
	c := socket.DefaultServerOptions()
	c.SetAllowEIO3(true)
	// c.SetConnectionStateRecovery(&socket.ConnectionStateRecovery{})
	// c.SetAllowEIO3(true)
	// c.SetPingInterval(300 * time.Millisecond)
	// c.SetPingTimeout(200 * time.Millisecond)
	c.SetMaxHttpBufferSize(1000000)
	c.SetConnectTimeout(1000 * time.Millisecond)
	c.SetCors(&types.Cors{
		Origin:      "*",
		Credentials: true,
	})
	httpServer := types.NewWebServer(nil)
	io := socket.NewServer(httpServer, c)
	io.On("connection", func(clients ...interface{}) {
		client := clients[0].(*socket.Socket)
		client.Emit("auth", client.Handshake().Auth)

		client.On("message", func(args ...interface{}) {
			client.Emit("message-back", args...)
		})

		client.On("message-with-ack", func(args ...interface{}) {
			ack := args[len(args)-1].(func([]any, error))
			ack(args[:len(args)-1], nil)
		})
	})

	io.Of("/custom", nil).On("connection", func(clients ...interface{}) {
		client := clients[0].(*socket.Socket)
		client.Emit("auth", client.Handshake().Auth)
	})

	utils.SetTimeout(func() {
		// main namespace
		root_rooms := io.Of("/", nil).Adapter().Rooms()
		root_sids := io.Of("/", nil).Adapter().Sids()
		fmt.Println(root_rooms)
		fmt.Println(root_sids)

		// custom namespace
		rooms := io.Of("/custom", nil).Adapter().Rooms()
		sids := io.Of("/custom", nil).Adapter().Sids()
		fmt.Println(rooms)
		fmt.Println(sids)
		// return all Socket instances in the "room1" room
		io.FetchSockets()(func(sockets []*socket.RemoteSocket, _ error) {

			for _, socket := range sockets {
				fmt.Println(socket.Id())
				fmt.Println(socket.Handshake())
				fmt.Println(socket.Rooms())
				fmt.Println(socket.Data())

				// socket.Emit("hello")
				// socket.Join("room1")
				// socket.Leave("room2")
				// socket.Disconnect()
			}

		})
	}, time.Millisecond*5000)

	httpServer.Listen(":3000", nil)

	exit := make(chan struct{})
	SignalC := make(chan os.Signal)

	signal.Notify(SignalC, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
	go func() {
		for s := range SignalC {
			switch s {
			case syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT:
				close(exit)
				return
			}
		}
	}()

	<-exit
	io.Close(nil)
	os.Exit(0)
}

[zishang520]

Do you have any other questions? If there are no more, the issue will be closed.

[JanYork]

Do you have any other questions? If there are no more, the issue will be closed.

How to get the reason parameter when the connection is disconnected? Like node to socket.io:

io.on('disconnect', async (reason) => {
    //....
});

There is no documentation on what parameters events.Listener will return and in what order.

[zishang520]

io.On("disconnect", func(reason ...any) {
    utils.Log().Info(`socket %s disconnected due to %s`, socket.Id(), reason[0])
})

[JanYork]

io.On("disconnect", func(reason ...any) {
    utils.Log().Info(`socket %s disconnected due to %s`, socket.Id(), reason[0])
})

Thanks, And, How can I get all socket instances in a room of a socket server?

[zishang520]

Did you read the example code in https://github.com/zishang520/socket.io/issues/59#issuecomment-2204908394 carefully?

[zishang520]

Do you have any other questions? If there are no more, the issue will be closed.