test queue

app.js

@@ -21,6 +21,7 @@ const bodyParser = require('body-parser');
 
 
 var jsonParser = bodyParser.json();
+const queue = {};
 
 app.get('/test', function (req, res) {
   //res.send('<script src="/socket.io/socket.io.js"></script><script>  const socket = io("http://localhost");</script>')
@@ -28,22 +29,49 @@ app.get('/test', function (req, res) {
 });
 
 app.post('/pub/:roomId', jsonParser, function (req,res) {
-    console.log('publish to ' + req.params.roomId + ' data:');
+	const room = req.params.roomId;
+    console.log('publish to ' + room + ' data:');
     console.log(req.body);
-    io.to(req.params.roomId).emit('data',req.body);
+	if (typeof queue[room] !== 'undefined') {
+		queue[room].push(req.body);
+	} else {
+		io.to(room).emit('data',req.body);
+	}
+	console.log(queue);
     res.sendStatus(200);
 });
 
+function takeFromQueue(room) {
+	if (typeof queue[room] == 'undefined') {
+		return;
+	}
+	const d = queue[room].shift();
+	if (typeof d === 'undefined') {
+		delete queue[room];
+		console.log("Queue delivered. Remove obj.")
+		return;
+	}
+	io.to(room).emit('data',d);
+
+	setTimeout(()=>{
+		takeFromQueue(room);
+	}, 500);
+}
 
 io.on('connection',  function(socket) { 
     console.log('new user ' + socket.id);
+	console.log("_________________________")
     if (typeof socket.handshake.query.id !== 'undefined') {
-	const room = socket.handshake.query.id;
-	socket.join(room);
-	console.log('user ' + socket.id + ' joined to room ' + room);
-    }
+		const room = socket.handshake.query.id;
+		socket.join(room);
+		console.log('user ' + socket.id + ' joined to room ' + room);
+		takeFromQueue(room);
+	}
     socket.on('disconnect', () => {
-    	    console.log('user ' + socket.id + ' disconnected');
+		const room = socket.handshake.query.id;
+		console.log('user ' + socket.id + ' disconnected');
+		queue[room]=[];
+		console.log('create queue: ' + room);
     });
 });