url_helpers in /lib

Hi, I’m trying to generate some static feeds using a script in /lib that I will later call from a sidekiq worker and I need to access the URL helpers from my library, how can I do it?

What I tried so far is including Rails.application.routes.url_helpers in my class but it doesn’t seem to work. I’ve also tried to follow this blog post http://hawkins.io/2012/03/generating_urls_whenever_and_wherever_you_want/ but still no success.

Does someone know how to use url helpers inside a lib?