I'm using Node.js and Express. I just implement Cloudinary to upload image from user, and store the image id to my MySQL database.

I tried this tutorial from Cloudinary's documentation: <http://cloudinary.com/documentation/node_image_upload>. Everything works well, except at the final step, I need to get the `image_id`. 

```js
  var url = require('url')  
  var url_parts = url.parse(req.body.coverurl, true)
  console.log(url_parts) //DEBUG
  var query = url_parts.query
  console.log(query) //DEBUG

  var preloaded_file = new cloudinary.PreloadedFile(query.image_id)
  if (preloaded_file.is_valid()) {
    var image_id = preloaded_file.identifier()
    console.log("Img ID:" + image_id)
  } else {
    console.log("Invalid upload signature")
  }

```

The `req.body.coverurl` is something like: `image/upload/v1426989769/f08eodnwt5zqfwb2bgpd.png#f63f1fe77c7f536447e079f3dd10829b5a15d862`
The `url_parts` is: 

```json
{ protocol: null,
  slashes: null,
  auth: null,
  host: null,
  port: null,
  hostname: null,
  hash: '#f63f1fe77c7f536447e079f3dd10829b5a15d862',
  search: '',
  query: {},
  pathname: 'image/upload/v1426989769/f08eodnwt5zqfwb2bgpd.png',
  path: 'image/upload/v1426989769/f08eodnwt5zqfwb2bgpd.png',
  href: 'image/upload/v1426989769/f08eodnwt5zqfwb2bgpd.png#f63f1fe77c7f536447e079f3dd10829b5a15d862' }

```

And..., variable `query` is empty. `query.image_id` is invalid so can't get the image id, also can't verify the signature.

I don't know why Cloudinary give this invalid callback string. Or how can I solve this problem. 

Thank for your help. And forgive me for my bad English :)

**Update**

**my submit\_idea.hbs**

```html
<form action="/submit/idea" method="POST">
    {{{imgtag}}} <!-- this will render from: cloudinary.uploader.image_upload_tag('coverurl') -->
    <button type="submit">Save</button>
</form>

```

**in my routes/submit.js**

```js
router.get('/submit/idea', function(req, res, next){
    // just render the submit_idea.hbs with some Cloudinary variable
})

router.post('/submit/idea', function(req, res, next){
  var url = require('url')  
  var url_parts = url.parse(req.body.coverurl, true)
  var query = url_parts.query

  var preloaded_file = new cloudinary.PreloadedFile(query.image_id)
  if (preloaded_file.is_valid()) {
    var image_id = preloaded_file.identifier()
    console.log("Img ID:" + image_id)
  } else {
    console.log("Invalid upload signature")
  }

  // add image_id to mysql
})

```