REACT_APP_API_KEY=XXXXxxxx
REACT_APP_AUTH_DOMAIN=xxxxXXXX.firebaseapp.com
REACT_APP_DATABASE_URL=https://xxxXXXX.firebaseio.com
REACT_APP_PROJECT_ID=xxxxXXXX
REACT_APP_STORAGE_BUCKET=xxxxXXXX.appspot.com
REACT_APP_MESSAGING_SENDER_ID=xxxxXXXX