firebase create-react-app how to protect secrets code example

Example: firebase create-react-app how to protect secrets

REACT_APP_FIREBASE_APIKEY=${{ secrets.REACT_APP_FIREBASE_APIKEY }} REACT_APP_FIREBASE_AUTHDOMAIN=${{ secrets.REACT_APP_FIREBASE_AUTHDOMAIN }} REACT_APP_FIREBASE_DBURL=${{ secrets.REACT_APP_FIREBASE_DBURL }} npm run build