fs issues

fsroute.js

'use strict';
var ImageUpload = require('./models/images.js');

module.exports = function(app, fs) {
    app.post('/upload', isLoggedIn, function(req, res) {
        req.pipe(req.busboy);
        req.busboy.on('file', function(fieldname, file, filename) {
            var image = new ImageUpload({
                userID: req.user._id,
                imageLocation: '/uploads/' + req.user._id + '/' + filename
            });
            image.save(function(err, log) {
                if (err) {
                    console.error(err);
                }
            });
            fs.mkdir(__dirname + '/uploads/' + req.user._id, function(err) {
                console.log(err);
                var fstream = fs.createWriteStream(__dirname + '/uploads/' + req.user._id + '/' + filename);
                file.pipe(fstream);
                fstream.on('close', function() {
                    res.redirect('back');
                });
            });
        });
    });
};

function isLoggedIn(req, res, next) {
    if (req.isAuthenticated()) {
        return next();
    }

    res.redirect('back');
}