This is Sample express app added babel to process React code.

Using ReactJs code in Express.Js And get it using ReactDOMServer.renderToString();

React Components are located in /pages ------ npm run-script build ------ will generate normal JS files in /Lib and they will be used in express code by using ReactDOMServer.renderToString

Its just a sample using Babel please check package.json & .babelrc files if you are new to babel and its config setting and presets.

I created this sample in Visual Studio but can be usefull from any IDE.. {dont forgot to run 'npm install'}