Locating a server bug: debugging and the debugger tool for beginners

[badlydrawnrob]

Thanks for the detailed feedback, I’ll have to distill those pointers down and get used to slightly larger programs. I’m starting to struggle to grasp concepts a bit — I think finding other examples/tutorials helps.

I found another great example of Http.get with a simple string at Beginning Elm. I think it helps having each functionality isolated so you can properly see what’s going on.

That tutorial also has a problem with cors — even though you’re serving both servers on localhost — but thankfully you can change the heading returned by the server with --cors flag to allow it.

@lydell

GotPhotos (Err error) ->
   let
       _ = Debug.log "Error" error
   in
   ( { model | status = Errored "Server error!" }, Cmd.none )

So NetworkError could be anything then! I like the fact that you can keep the Debug.log separate in a let. Nice.

I’m sure I’ll learn more about error-checking and security either in the book, or further research.

Thanks so much!