Firebase Auth

google-login.js

var provider = new firebase.auth.GoogleAuthProvider();
        
function onSigninClick () {
  firebase.auth().signInWithPopup(provider).then(function (result) {
    console.log('Auth resposne from firebase:', result)
  })
}

function onSignoutClick () {
  firebase.auth().signOut().then(function() {
    console.log('Signout successful')
  })
}