This page covers Tutorial v2. Elm 0.18.

Update

We need our update function to respond to the new OnLocationChange message.

In src/Update.elm add a new branch:

...
import Routing exposing (parseLocation)

...

update msg model =
    case msg of
        ...
        Msgs.OnLocationChange location ->
            let
                newRoute =
                    parseLocation location
            in
                ( { model | route = newRoute }, Cmd.none )

Here when we receive the OnLocationChange message, we parse this location and store the matched route in the model.