Accessing Laravel auth library from with CI3

Hi there,

We need to provide single sign on across two systems, one in Laravel 5 and one in CI3. We need to use the Laravel 5 apps auth library (Spatie Laravel Permission https://www.github.com/spatie/laravel-permission) as the authentication library and be able to check the user permissions from within our CI3 application as well. 

I think this should be possible if we use DB sessions in the Laravel app and then include the Laravel auth library via composer in our CI app? I have not used Laravel much myself, so I was hoping someone might have had some experience accessing Laravel functions within CI3, and could point me in the right direction of how to get started? 


Many thanks