The Express API with Postgres database used by the booktonica-react app.

Create a new app and follow the Heroku CLI instructions.

• Go to Resources -> Add-ons
• Find Postgres
• Add it
• run heroku pg:credentials:url DATABASE to get the remote DB url
• psql <URL> < booktonica.sql

After commiting changes, run:

git push heroku master

heroku local

After your React app is deployed to Heroku, use its URL in this app's config:

heroku config:set REACT_CLIENT_ORIGIN=https://booktonica-react.herokuapp.com

This will set proper CORS headers so your React client app can make requests.