Hey germain, On Mon, Jun 20, 2016 at 11:23 PM, germain <germainde...@gmail.com> wrote: > IT'S WORK, thank you so much William ~
No problem. > - Http.fromJson decoder (Task.succeed response) => why do you use > (Task.succeed response) ? And not just give as argument "response"? > Is it connected with `andThen` and its signature andThen : Task x a -> (a > -> Task x b) -> Task x b where a is "just" the response of the post request > which must be transformed into a Task by using Task.succeed succeed : a -> > Task x a in order to pass it to the fromJson function which requires > fromJson : Decoder a -> Task RawError Response -> Task Error a ? Exactly right, you answered your own question. Since we temporarily extracted the response value using `andThen`, we need to wrap it up with succeed again so that fromJson accepts it. Also the second argument to `andThen` is a function that must return a task, and since `decoded` returns a task, it works out. The error type has to be "Maybe" because we could hit a network error before we get a response. > - Do you know the difference between Task.Task and Platform.Task? They're the same. They're aliased to each other. Cheers, William --- https://jb55.com -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
