问题 UPDATE 2011/05/01: I later carefully read through FourSquare's API document, and found it says: (Note that the request parameters are not JSON, they are standard HTTP keys and values.) All authentication is via OAuth2, which means that all requests MUST be https. Could this be the problem that I don't have a SSL connection in my development machine? Hi all! I am trying to connect FourSquare via Omniauth, I followed the Railscast toturial below, and change the provider into foursquare. But the