C#•3y ago

✅ Authenticating using OAuth

Does anyone have any resources on authenticating using OAuth? I wanna interact with the Google Workspaces APIs which require OAuth authentication, but I have no idea how to properly set it up. I have the OAuth2 client secret and ID set up, I'm just unsure of how to use it.

Kao•12/11/23, 3:49 PM

What are you trying to connect with the oauth

Kao•12/11/23, 3:50 PM

Like are you doing a backend to backend or is it a client

Hazel 🌊💃•12/11/23, 3:50 PM

I'm not an expert, but I thought it was a simple system of auth with original token, get back auth token, refresh that when it expires?

KKao Like are you doing a backend to backend or is it a client

ThinkerOP•12/11/23, 3:50 PM

A client

Kao•12/11/23, 3:50 PM

A desktop one?

ThinkerOP•12/11/23, 3:50 PM

ThinkerOP•12/11/23, 3:51 PM

I've read through this article and think I get how it works, but there's not reference for how to authenticate and stuff.
https://developers.google.com/workspace/guides/auth-overview

Kao•12/11/23, 3:51 PM

You will need to spin up a webserver in you client so you can listen to the callback from the oauth

ThinkerOP•12/11/23, 3:52 PM

Webserver? Like ASP.NET...? Or some other kind of server?

Kao•12/11/23, 3:52 PM

A simple httplistener is enough

ThinkerOP•12/11/23, 3:52 PM

I'm aiming for this to be a simple CLI tool, so it's not gonna be long-running.

Kao•12/11/23, 3:52 PM

And the listener just need to stay alive for the auth process

ThinkerOP•12/11/23, 3:52 PM

Kao•12/11/23, 3:52 PM

When it's done and you have the token it is fine

ThinkerOP•12/11/23, 3:53 PM

So I set up an HTTP listener for the auth process, then discard it when it's done?

Kao•12/11/23, 3:54 PM

Yeah.
And for handling 80% of the process (except the httplistener part hahaha) you can use something like IdentityModel https://identitymodel.readthedocs.io/

ThinkerOP•12/11/23, 3:55 PM

Oh also, while I'm at it, would there be a way to store the token somewhere persistent such that the user doesn't need to log in on every invocation of the tool?