faqs

common questions from the community!

can i access query parameters?

You bet! Query parameters are available on the PageContext optionally passed into your page functions. Just omit the always function to provide the PageContext to your functions!

src/Pages/Example.elm

import Html exposing (Html)
import Utils.Spa as Spa
-- ...

page : Spa.Page Params.Example Model Msg model msg appMsg
page = 
  Page.static
    { title = always "homepage"
    , view = view
    }

view : PageContext -> Html Msg
view { queryParameters } =
  case Dict.get "name" queryParameters of
    Just name ->
      Html.text ("Hello, " ++ name ++ "!")

    Nothing ->
      Html.text "no name parameter"

So if you navigate to /example you'll see no name parameters

And if you navigate to /example?name=Ryan you'll see Hello, Ryan!.

how can i pass flags into my app?

You can update the type alias Flags in src/Global.elm to control what flags your app has access to.

From there, you can update public/index.html to control what JSON to pass into Elm.Main.init.

how do i submit an faq?

If you think a question is common enough to make it in here, you can submit it to the #elm-spa-users channel in the official Elm slack.

If your question/answer combo gets 10 👍 emojis, it's officially considered "frequently asked" and we'd be happy to add it in!

It's a ridiculous system, and I'm very excited to see if it actually works.