Bork is a UI for making HTTP requests.
$ PORT=4000 npm start
Arbitrary HTTP requests can be sent from the backend, and there's no authentication, so it's not recommended to deploy to a public location yet, unless it's behind a reverse proxy with authentication.
It can be reached at http://localhost:4000/
In one terminal tab, run the create-react-app development server on port 3000
$ npm start-dev
In another terminal tab, run the API server on port 4000:
$ npm start
It can be reached at http://localhost:3000/