var KuainiuStrategy = require( 'passport-kuainiu' ).Strategy;

passport.use(new KuainiuStrategy({
    clientID:     KUAINIU_CLIENT_ID,
    clientSecret: KUAINIU_CLIENT_SECRET,
    callbackURL: "http://yourdomain:3000/auth/kuainiu/callback",
    passReqToCallback   : true
  },
  function(request, accessToken, refreshToken, profile, done) {
    User.findOrCreate({ kuainiuId: profile.id }, function (err, user) {
      return done(err, user);
    });
  }
));

app.get('/auth/kuainiu',
  passport.authenticate('kuainiu', { scope:
  	[ 'email', 'profile' ] }
));

app.get( '/auth/kuainiu/callback',
	passport.authenticate( 'kuainiu', {
		successRedirect: '/auth/kuainiu/success',
		failureRedirect: '/auth/kuainiu/failure'
}));