Failed to access through accessToken

[Cicko]

Maybe I understand wrongly the utility of the accessToken (first argument returned by the callback when creating the strategy) because when I am trying to sign in it does not work correctly:

var github = require('octonode');

passport.use(new Strategy({
  clientID: clientID,
  clientSecret: clientSecret,
  callbackURL: callbackURL
},
function(accessToken, refreshToken, profile, done) {
  var client = github.client(accessToken);
  // Client is not signed in...
}