Including the following in a .env file:
REACT_APP_FIREBASE_API_KEY=<Firebase API Key>
REACT_APP_FIREBASE_AUTH_DOMAIN=<Firebase Auth Domain>
REACT_APP_FIREBASE_DATABASE_URL=<Firebase Database URL>
REACT_APP_FIREBASE_PROJECT_ID=<Firebase Project ID>
REACT_APP_FIREBASE_STORAGE_BUCKET=<Firebase Storage Bucket>
REACT_APP_FIREBASE_MESSAGING_SENDER_ID=<Firebase Messaging Sender ID>
REACT_APP_FIREBASE_APP_ID=<Firebase App ID>
REACT_APP_FIREBASE_MEASUREMENT_ID=<Firebase Measurement ID>
npm run develop
Runs the app in the development mode.\ Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
npm test
Launches the test runner in the interactive watch mode.
npm run build
Builds the app for production to the build
folder.