Sakolik

var isAuthenticated = function (req, res, next) {
	var currentUserId = req.user ? req.user.id : false;
	if(!currentUserId){
		res.redirect('/');
		return;
	}
	Admin.findById(currentUserId,function (err, user) {
		if(!user || user.role !== "admin"){
			res.redirect('/');
		}else{
			next();
		}
	})
}

router.get('/admin', isAuthenticated, function(req, res, next) {
		
		res.end();
	});