Lahat ng language at framework
Hanami Ruby
Isang Ruby snippet para sa Hanami na sumasagot sa mga request sa /pixel.gif gamit ang empty GIF, na isang beses lang dine-decode sa startup.
Hanami Ruby
# app/actions/pixel/show.rb
module MyApp
module Actions
module Pixel
class Show < MyApp::Action
GIF = "R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==".unpack1("m0").freeze
def handle(request, response)
# Rack's content_type= sets the exact header; format= would append "; charset=utf-8".
response.content_type = "image/gif"
response.headers["Cache-Control"] = "no-store"
response.body = GIF
end
end
end
end
end
# config/routes.rb
module MyApp
class Routes < Hanami::Routes
get "/pixel.gif", to: "pixel.show"
end
end
Pinatakbo namin ang snippet na ito at ikinumpara ang mga byte na ibinalik nito.
Suriin
curl -sI http://localhost:8080/pixel.gif