This is a simple react app that I built to check out the new hooks API that shipped in react@16.8. It uses the numbers API proxied through a Node.js server hosted on heroku. The proxy exists as the API uses http while the app is hosted on a https host (mixed content). Besides, I also added a couple of e2e tests to check out cypress as well. You can view it here.
This was bootstrapped using Create React App.