Rails Authentication with OAuth 2.0 and OmniAuth — SitePointThis is the third article in the Authentication with Rails series. We’ve build a classic login/password authentication systems with features like remember me, reset password, confirm e-mail, and the like. Today we are going to talk about authentication via social networks with the help of the OAuth 2 protocol. We will discuss OmniAuth and four of its strategies: Twitter, Facebook, Google+, and Lin
