In this recipe, we extend the
TodoNancy application to provide users with the option of logging in with Twitter. If users are logged in, they can read, modify, and delete their own Todos. Users—with the exception of anonymous users—will not be able to see each other's todos. Just like up until this point, any user can walk up to
TodoNancy and add todos. If they are not authenticated, the application sees them as anonymous users and pools all their todos together in one big bucket belonging to the anonymous user.
As usual, open the code from the last recipe or grab it from the code download. Either way, you should be ready for the steps in this recipe as soon as you have the code from the last recipe. ...