Walmart has open-sourced a solution optimizing above-the-fold views and server-side caching.
getInitialProps in the React lifecycle, to trigger rendering on the server and subsequent rendering in the client.
Redfin has a well-documented solution and Yeoman generator for getting started with https://react-server.io.
Of course, you can just roll your own solution. This example demonstrates just using a catch-all route in express, and using your