creating room in ws nodejs
const rooms = {};
wss.on("connection", socket => {
const uuid = ...; // create here a uuid for this connection
const leave = room => {
// not present: do nothing
if(! rooms[room][uuid]) return;
// if the one exiting is the last one, destroy the room
if(Object.keys(rooms[room]).length === 1) delete rooms[room];
// otherwise simply leave the room
else delete rooms[room][uuid];
};
socket.on("message", data => {
const { message, meta, room } = data;
if(meta === "join") {
if(! rooms[room]) rooms[room] = {}; // create the room
if(! rooms[room][uuid]) rooms[room][uuid] = socket; // join the room
}
else if(meta === "leave") {
leave(room);
}
else if(! meta) {
// send the message to all in the room
Object.entries(rooms[room]).forEach(([, sock]) => sock.send({ message }));
}
});
socket.on("close", () => {
// for each room, remove the closed socket
Object.keys(rooms).forEach(room => leave(room));
});
});