How to get uploaded image path in express js node js

I am not sure how your permissions are set up in your server but typically the public folder is housed at the root so /public/javascripts/test.js would be localhost:3000/javascripts/test.js. so assuming all permissions are the same you should be able to access it at localhost:3000/uploads/fullsize/

If you are saving images you might look at MongoDB or Cloudinary. Uploading to the public directory could open you to security risks. Plus it is probably cheaper to let a free service like Cloudinary handle the storage space.