const io = new Server(server);
const port = 2122;
+comments = [];
+
app.get('/index.html', (req, res) => {
res.sendFile(__dirname + '/index.html');
});
io.on('connection', (socket) => {
- console.log('a user connected');
+ // Replay old comments to a newly-joining client
+ comments.forEach((comment) => {
+ socket.emit('comment', comment)
+ });
+ // When any client comments, send that to all clients (including sender)
+ socket.on('comment', (comment) => {
+ io.emit('comment', comment);
+ comments.push(comment);
+ });
});
server.listen(port, () => {
console.log(`listening on *:${port}`);
});
-