Hey Alois, thanks for stopping by. It's not hard to learn from the book. The syntax is funky, but that's okay, and the code formats longwise and very compact - which makes it a little harder to learn if you come from a language with breathing space. From the other comments, it seems I went into async immediately, since I'm so used to having to release the thread to service the HTTP queue, and async on Rust is new and somewhere even some Rustaceans haven't ventured.