Saving Location of Scraped Image to DB - Node/MEAN - angularjs

Question

After scraping an image I'm able to download to a folder using request. I would like to pass along the location of this image to my Mongoose collection.
In the callback I think there should be a way to save the location so I can pass this along when saving my model object.
exports.createLook = function(req, res) {
var url = req.body.image;
var randomizer = '123456';
var download = function(url, filename, callback) {
request(url)
.pipe(fs.createWriteStream(filename))
.on('close', callback);
};
download(url, '../client/assets/images/' + randomizer + '.jpg', function() {
console.log('done');
// do something?
});
// now get model details to save
var newLook = new Look();
newLook.title = req.body.title;
newLook.image = // image location
newLook.save(function(err, look) {
if(err) return res.send(500);
} else {
res.send(item);
}
}

Answer 1

Assuming that 'randomizer' will be generated I would do:
exports.createLook = function(req, res) {
var url = req.body.image;
var randomizer = getSomthingRandom();
var download = function(url, filename, callback) {
request(url)
.pipe(fs.createWriteStream(filename))
.on('close', callback(filename);
};
download(url, '../client/assets/images/' + randomizer + '.jpg', function(filename) {
console.log('done');
// now get model details to save
var newLook = new Look();
newLook.title = req.body.title;
newLook.image = filename;
....
});