Using Gatling with SignalR

I have Gatling script to load test a document management system, and have run into an issue.

The front-end uses a JQuery-SignalR library to listen for notifications that a document has been processed.

Because the client-server handshake is managed by the JQuery library, I have no way of replicating in Gatling without reimplementing the same functionality.

I understand it is possible for me to make my own script using Gatling tool for virtual user creation(multithreading) and use java signalr client but I have no idea how to approach the issue.

Help appreciated!