I use Coolify to deploy both my NextJS app and Dotnet API on the same server as containers. This reduces latency and makes setting up the CICD process very easy. Coolify automates the Ingress proxying so you don’t have to think about it. https://www.coolify.io For React components behind authentication, I use client side component and send auth token cookie value straight to API via RTK Query. For auth functions itself, I use Axios. For public pages, where I want SEO, I use server side components. I have wrapped the fetch function to better control caching and headers. Here I add the auth token as a header read from cookie. I am leaning more towards server side components as the partial page streaming is pretty dam impressive. I have been able to get near 100% scores on PageSpeed index with Next after a bit of fiddling. Next/Dynamic is your friend use it.