import firebase from 'firebase/app' ; export function signinWithGoogle ( setLoading , setError , callback ) { const provider = new firebase . auth . GoogleAuthProvider ( ) ; firebase . auth ( ) . useDeviceLanguage ( ) ; setLoading ( true ) ; firebase . auth ( ) . signInWithPopup ( provider ) . then ( auth => { setLoading ( false ) ; callback ( ) ; } ) . catch ( function ( error ) { setError ( error ) ; } ) ; }