What are there snaps ? <| sep |> I like far cry blood dragon loading screen tipsrunning is like walking , but faster <| sep |> Or we could stop giving things to Africa else they ' re going to be completely dependent on aid . However , I ' m not sure these men can learn to fish either . <| sep |> If I just echo it and it ' s not buffered by the caller or send it to STDOUT it ' d be unfortunate leak of abstractionPerhaps I was unclear the invokable only gets called at send time , after headers are sent that is , at what ought to be the end of the process . You may wish to take a look at the userland implementation linked by ujbboehr for more details . I have a similar minimal wrapper around RequestReader and ResponseWriter , much like your two object , in userland . I ' d be very interested to see them in their entirety you have them on GitHub , GitLab , your blog , or somewhere else , for others to review and critique ?