React client app - asp mvc server on backend

[infel]

Hello,

We have a react-redux based app as a frontend, on Azure. On another url, an mvc asp backend. The oauth authentication is done on the server using shopifysharp.

What is the recommended way to authenticate in such scenario? All the example I found are on the same server. I tried to use the the app proxy for the backend auth endpoint, it gets called but with all the back and forth routing it does not work...

Is it doable / recommendable? Is there ANY full client server example out there?

Thank you!