Ckeditor with file upload (Using NodeJs and Mongoose)

So i wanted to integrate a Ckeditor in my wwebApp. I'm using NodeJs, Express ad Mongoose. I want to have something like a link that goes to a file that's stored in my database

Can't find how to configure my upload file URL. I found this in their website :

config.filebrowserUploadUrl = '/uploader/upload.php';

But i don't understand how to configure the uploader

Thanks for your help

via Asmaa