express file upload 하기 ( multer 사용 )

module	version	desc
node	4.2.1
express	4.13.4
multer	1.1.0

var multer = require('multer');
var storage = multer.diskStorage({
    destination: function (req, file, callback) {
        callback(null, './uploads');
    },
    filename: function (req, file, callback) {
        console.log(req);
        console.log(file);
        callback(null, Date.now() + '_' + file.originalname);
    }
});
var upload = multer({ storage : storage }).single('image');

router.post('/html_upload_complete', function (req, res, next) {
    upload(req, res, function (err) {
        if (err) {
            return res.end("Error uploading file.");
        }
        res.end("File is uploaded");
    });
});