Match websocket with http request when user connects
<p>The issue that I'm having is http request happen independently or at different time as a web socket connection. The idea is that when a user connects I can store a session id and a web socket within the same pair in <code>var allConnectionsMatches = [];</code>and use this information later in a post request to find out which socket is calling the request so I can emit to that particular socket. The code below shows my attempt. What I wrote does work to an extent but It has a few issues such as when you refresh it sometimes doesnt emit messages anymore, or when you exit out the browser and connect again there is no message  emitted by socket io. Any ideas?</p>

<pre><code>var allConnectionsMatches = [];

var sessionID;

app.get('/', function(req, res, next) {

  sessionID = req.session.id;

  res.render('index.ejs')

});

function findDuplicates(data, sessionID, socket) {

    var isPositive = data.lastIndexOf(sessionID);

    if (isPositive === true) {

      var socketLocation = allConnectionsMatches.indexOf(sessionID);

      socketLocation + 1;

      allConnectionsMatches.splice(socketLocation, 1, socket)

    } else if(isPositive === -1) {

      data.push(sessionID, socket);
    } else {

    }

}


io.sockets.on('connection', function (socket) {
  findDuplicates(allConnectionsMatches, sessionID, socket)
});
</code></pre>