Using the brilliant user system Devise and a gem called OmniAuth you can make a Rails application that logs in or registers users via Twitter, Facebook, Foursquare, etc with amazing ease. But once the user has authenticated their account, how do you go about actually interacting with the API? This article will answer that for you, with some shiny code examples.
Build APIs You Won't Hate
Everyone and their dog wants an API, so you should probably learn how to build them.
Tasked with building an API for your company but don't have a clue where to start? Taken over an existing API and hate it? Built your own API and still hate it? This book is for you.
Trade Twitter profiles like commodities in the awesome game twiDAQ.