Using socket.io to connect to mongodb

Question

I can't seem to wrap my head around how to submit front end (express) data through socket to mongodb. I have one simple database with one collection called 'playlist' and two tables called 'youtube_id' and 'upvotes'

The following is in my app.js

 io.on('connection', function(socket){
    socket.on('insertSong', function(song, upvote){
            mongo.connect(MONGO_URL, function(err, db) 
                {
                var playlist = db.collection('playlist');
                playlist.insert({youtube_id: song, upvotes: upvote});

                });
            });


  });

and here is the code in my index.html

    <script>
                $(function(){
                        var playlist = io();
                        var song = "PEGccV-NOm8";
                        var upvote = 1;
                        playlist.emit('playlist', {song,upvote});


                });
    </script>

Did you successfully send a message over socket yet? Or is that whats failing? — maxpaj
– maxpaj, Commented Feb 8, 2018 at 16:49
I used the tutorial to make a simple chat program work with socket so sockets is working & installed and mongodb is also up & running. I don't receive any errors and nothing is added to the database when i run the frontend. — kyle
– kyle, Commented Feb 8, 2018 at 16:50

C.Dumange · Accepted Answer · 2018-02-08 17:05:16Z

2

You are emiting a 'playlist' event in your client and waiting for a 'insertSong' on your server.

answered Feb 8, 2018 at 17:05

C.Dumange

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