How does web client request visualization session for ParaViewWeb launcher?

I have a Pyramid web application on which I would like to embed an iFrame displaying an instance of ParaViewWeb's visualizer so users can display VTU files remotely.

I have successfully done so while running the application on my own workstation by calling a subprocess from Python that executes ParaViewWeb's Quick Start method and returns the URL to JavaScript for iFrame generation.

http://ift.tt/1h7Ttk4

However, in order to accommodate multiple users, ParaViewWeb's documentation indicates that

the server must provide a single entry point to establish a connection, as well as a mechanism to start a new visualization session on demand

for which it suggests using Apache as the front-end application and a python launcher to start the process for each session.

Conveniently, I have a "freshly installed Ubuntu Desktop 14.04 LTS" so I used the following guide to configure both the launcher and Apache:

http://ift.tt/1J3mNy5

Ok so I'm pretty sure I am missing something major here, but once the launcher is started with /data/pvw/bin/start.sh... how do I then submit the request with information regarding what app to use (visualizer) and what data directory to load???

via Chebli Mohamed