JavaScript

router.post('/photo',[ multer(
  { 
    dest:'./uploads/',
        rename: function (fieldname, filename, req, res) {
           console.log(fieldname);
        console.log("=============");
       // console.log(req.body.can);
        console.log("=============");

        console.log(filename);
            //return filename.replace(/\W+/g, '-').toLowerCase() + Date.now()
                return filename
        },
        onFileUploadComplete: function (file, req, res) {
                 console.log(file.fieldname + ' uploaded to  ' + file.path)
               // res.json({"responseCode":1});
        },
        changeDest: function(dest, req, res) {
                 dest += '/uploads'+req.body.can;
                  if (!fs.existsSync(dest)) fs.mkdirSync(dest);
                  return dest;
        }
   
})
]);
  router.post('/photo', function (req, res) {
    id     : req.body.can
//console.log(req.body.can)
//;return;
        var form = {
            body: req.body,
            files: req.files
        }
        res.send(form);
    });