Point DNS to subdirectory on heroku rails app?

Question

We have a rails app that generates subdirectories for a user example.herokuapp.com/user1directory & example.herokuapp.com/user2directory

Is there a way to point DNS for a url to that specific directory of the rails app, without any silly hacks?

Ideally what we need is user1website -> example.herokuapp.com/user1directory but masks it while showing any further subdirectories / pages.

Any help will be greatly appreciated.

Thank you.

Answer 1

That's imposible without hacks & proxies. Just because HTTP and DNS are not at the same level.