open-pod/lib/podcast_feed_web/controllers/feed_controller.ex

defmodule PodcastFeedWeb.FeedController do
  use PodcastFeedWeb, :controller

  def apeMilano(conn, _params) do
    %{podcast: podcast, items: items} = PodcastFeed.archive("incontri-a-piano-terra")
    conn
    |> put_resp_content_type("text/xml")
    |> render("feed.xml", podcast: podcast, items: items)
  end
end