.env.example
Set these on your host before deploying. Each platform has an “Environment Variables” section in the deploy flow.
REACT_APP_FIREBASE_API_KEY
secret
REACT_APP_FIREBASE_AUTH_DOMAIN
REACT_APP_FIREBASE_DATABASE_URL
secret
REACT_APP_FIREBASE_PROJECT_ID
REACT_APP_FIREBASE_STORAGE_BUCKET
REACT_APP_FIREBASE_MESSAGING_SENDER_ID
REACT_APP_FIREBASE_APP_ID
REACT_APP_FIREBASE_MEASUREMENT_ID