How to pass data between functions in a route?

Question

Node.js

There is a route in which we define the user's authorization as the first function ( usersController.loadUser ).

app.get('/', usersController.loadUser, function(req, res) {
    res.render('index.ejs', { title: 'Главная страница '});
});
exports.loadUser = function(req, res, next) {
    users.loadUser(req.session.id, function(err, result) { //Отправляем запрос в БД
        if (err) {
            return res.send(err);
        } else if (result) { //Если вернулись данные из БД проверяем их и разрешаем доступ к маршруту
            next();
        } else {
            //Либо просим пройти авторизацию
            res.redirect('/signin');
        }
    });
}

How to pass data from the authorization function to the next function?
As an answer, you can give the correct search query, something I'm sensitive to hangs.

Answer 1

well, you can add a field to req, it goes through the whole chain

Answer 2

Write them to the session and read them in another function.