Node.js multer upload dynamic folder support jQuery file upload

node.js multer upload dynamic folder

var moment = require('moment'),
   path = require('path'),
   crypto = require('crypto'),
   multer = require('multer');

module.exports = function (app) {


   app.post('/upload', multer({
      storage: multer.diskStorage({
         destination: path.join(__dirname, '../upload/media', moment().format('YYYY/MM/DD')),
         filename: function (req, file, cb) {
            crypto.pseudoRandomBytes(16, function (err, raw) {
               if (err) return cb(err)
               cb(null, raw.toString('hex') + path.extname(file.originalname).toLowerCase());
            })
         }
      })
   }).any(), function (req, res) {

      console.log(req.files);

      var _files = req.files;

      if (_files) {
         var _root = path.join(__dirname, '../upload');
         _files.forEach(function (f) {
            f.path = f.path.replace(_root, '');
            f.url = 'http://'+ req.hostname + f.path;
         });

         return res.jsonp({files: _files});
      }

      return res.jsonp({
         msg: 'Invalid upload'
      });

   });

   return app;
};