highper4.js

io.on('connection', socket => {

    console.log(`Socket ${socket.id} added`);
    localdata = tradedata.data;
    sockets.add(socket);
    if (!timerId) {
        startTimer();
    }
    socket.on('clientdata', data => {
        console.log(data);
    });
    socket.on('disconnect', () => {
        console.log(`Deleting socket: ${socket.id}`);
        sockets.delete(socket);
        console.log(`Remaining sockets: ${sockets.size}`);
    });

});