Awesome! I'll try it out...
Thanks!
Vojtech
Dne úterý 4. října 2016 16:36:37 UTC+2 Kasey Speakman napsal(a):
>
> I haven't done this yet as we're developing the UI first as things take
> shape and faking the API calls with Process.sleep + Task.perform. So below
> is just a sketch.
>
> Conceptually, you could use `Http.getString` (or construct a request and
> use `Http.send`) in Elm to get the JSON, then send that through a port to
> JavaScript. You'd need at least one outgoing port, and an incoming port for
> every result type.
>
> port deserializeJson : String -> String -> Cmd msg
>
>
> port studentsLoaded : (List Student -> msg) -> Sub msg
>
> port coursesLoaded : (List Course -> msg) -> Sub msg
>
>
> subscriptions : Model -> Sub Msg subscriptions model = Sub.batch [
> studentLoaded StudentsLoaded , courseLoaded CoursesLoaded ]
>
>
> On the outgoing port, you could pass both the JSON and the incoming port
> name as a string. Then in the JS, you could wire it once like this:
>
> app.ports.deserializeJson.subscribe(function(port, json) {
> // TODO can throw, so catch error and send to an error port
> var object = JSON.parse(json);
> app.ports[port].send(object);
> });
>
>
> Once you get the HTTP response string from a particular request, you send
> it through the outgoing port with the correct return path.
>
> deserializeJson "studentLoaded" json
>
> It looks like after initial setup, each deserialization would take ~3
> lines of wiring code. So it might not be worth it for small objects. But
> again this is just a sketch that I haven't tried to run.
>
> On Tuesday, October 4, 2016 at 6:40:08 AM UTC-5, Vojtěch Král wrote:
>>
>> I have the same problem. Would someone be so kind as to give an example
>> of how to launder the JSON via ports like this? Do you just rut the data
>> through a port, or do you do ajax in JS?
>> Thanks!
>>
>
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