A client-side javascript tracking library for Splunk
<script src="trackjs.min.js"></script>
<script>
track.init("http://localhost:8000/pixel.php");
</script>
If you app has its own user IDs, then these can be logged to facilitate better user tracking:
<script src="trackjs.min.js"></script>
<script>
var userId = 123456;
track.init("http://localhost:8000/pixel.php", userId);
</script>