Hi! We are coding a CMS like Wordpress and I’m trying to add support for multisite (i.e every site has a different domain) but I don’t know how to do it in an idiomatic way.
Also, the routes have to be different if I’m using it on my machine:
http://site-2.com:4000/category/2 points to the same page as http://localhost:4000/site/2/category/2 when running locally.

Right now I have duplicated my router code to handle the 2 different situations:

• When the request comes from localhost
• When the request comes from a different domain (e.g http://site-2.com/).

The downsides of my approach are that it has a lot of duplicated code and I need make several helper functions to handle each case every time I want to show a different route depending on the hostname.

Is there another way of doing it? Any comment would be welcomed.
Thank you!