Google Authentication with Ionic V4. What is everyone using?

Hey all,

I’m converting my Angular 7 app into Ionic 4 and things are mostly running smoothly (great!). However I am having problem converting my Google Authentication using the Google Client API. My implementation includes authenting with my backend server. From what I have read, Google’s Client Web API does not work well with mobile (or at all).

So what is everyone using to authenticate with Google? The only examples I see other people using requires Firebase and that doesn’t seem to fit my use case.