I'm trying to add parameters/settings to my socket room on top of the default room (roomid) I've tried to read up on socket.io docs and looked up online but I couldn't find much help

I initialize a new game room id and join the room with the code snippet below

let newRoom = `A ${colors[rando[0]]} ${animals[rando[1]]}`
socket.join(newRoom)

I tried:

io.sockets.adapter.rooms[newRoom].roomSetting = "foo"

I'm using socket.io v4!

CodePudding user response：

I ended up initializing my own room object where each room has settings attached to it. Spent too much time trying to figure out socket rooms but I guess things are un-documented for a reason. Lesson learned!

const rooms = {};

After initializing the rooms remove any dead/destroyed rooms,

function getActiveRooms(rooms) {
    const arr = Array.from(io.sockets.adapter.rooms);
    const filtered = arr.filter(room => !room[1].has(room[0]))
    const res = filtered.filter(i => i[1].size === 1);
    const r = res.map(r => r[0])

    // loop through rooms and remove rooms that are not in r
    // and store someSettings value in an array
    const someSetting = [];
    for (const [key, value] of Object.entries(rooms)) {
        if (!r.includes(key)) {
            delete rooms[key]
        } else {
            someSetting.push(value.someSetting)
        }
    }


    return ([r, someSettings]);
}

Output would be something like...

["roomName", "someSetting1", "someSetting2" ...etc]