This application goes along with the Build a MERN App and Deploy to Heroku tutorial series.
There are three parts:
Build an API with Node.js, Express and MongoDB: https://www.techandstartup.com/tutorials/build-api-with-node-express-and-mongodb
Integrate React into your MERN App: https://www.techandstartup.com/tutorials/mern-app-integrate-react
Deploy a MERN App to Heroku: https://www.techandstartup.com/tutorials/deploy-mern-app-to-heroku
To run the app in your development environment: npm run dev