Basic rollcall.js authentication example

rollcall-auth.js

rollcall = new Rollcall.Client('http://rollcall.aardvar.encorelab.org')

token = rollcall.getCurrentToken()

if (token) {
  rollcall.fetchSessionForToken(WallCology.token, function(data) {
    session = data.session
    // The session hash has the user's account info in it. At this point 
    // we can assume the user is authenticated.
  })
} else {
  rollcall.redirectToLogin()
}