How can I use Angular 5/6 for frontend and Codeigniter 3 for backend in the same app?

I have this project I want to do, using Angular 6 for frontend and Codeigniter 3 for backend. The problem is that I don't know how to combine the two, and all the tutorials I looked were using AngularJS which is the version 1 whereas i'm using version 6, and it didn't really work.



I am looking for something like JavaScript & CSS Scaffolding using Angular 6 (and not AngularJS) with Codeigniter 3


Can anyone help me??