OAuth API for Mobile - How to accomplish? Whitelist?

So, if I don’t know any web programming (javascript, etc) and do not write code for a web server, I cannot write an app that uses OAuth?

This seems a bit absurd. Are you sure?

I can grab the access token from the redirect (http://localhost/oauthCallback?code=######), but I don’t know how to get the final token using only Objective-C.