Hosting react and nodejs on same server using multiple domain

This video is to demonstrate, how you can host multiple website on same sever on same port using proxy server ( http-proxy package) using nodejs.
With proxy you can load resource from multiple local website on different port to single or multiple domain.
Hosting react js app with api in node js is answered in this video.

https://techsapphire.net/hosting-react-and-nodejs-on-same-server-using-multiple-domain/