The Uuid filter extracts an UUID segment from the beginning of the recognized path and exposes the page parameter as params. When a path is generated the filter adds the segments to the path accordingly if the page parameter is passed to the url helper.
incoming url: /d00fbbd1-82b6-4c1a-a57d-098d529d6854/products filtered url: /products params: params[:uuid] = 'd00fbbd1-82b6-4c1a-a57d-098d529d6854'
You can install the filter like this:
# in config/routes.rb Rails.application.routes.draw do filter :uuid end
To make your named_route helpers or url_for add the uuid segment you can use:
products_path(:uuid => uuid) url_for(:products, :uuid => uuid)