module Rack::Response::Helpers

def cache!(duration = 3600, directive: "public")

Options Hash: (**directive)
  • The (String) -- cache control directive, one of "public", "private", "no-cache" or "no-store".

Parameters:
  • duration (Integer) -- The number of seconds until the cache expires. 
def cache!(duration = 3600, directive: "public")
  unless headers[CACHE_CONTROL] =~ /no-cache/
    set_header CACHE_CONTROL, "#{directive}, max-age=#{duration}"
    set_header EXPIRES, (Time.now + duration).httpdate
  end
end