PriceApi-Aggregation.fs

type Price = { ItemId: string; Price: Decimal }

let getPriceForItem itemId : HttpHandler =
    match itemId with
    | "1" -> { ItemId = "1"; Price = 2.00M } |> Successful.OK
    | "2" -> { ItemId = "2"; Price = 4.50M } |> Successful.OK
    | _ -> RequestErrors.NOT_FOUND ()

let webApp =
    choose [
        routef "/item/%s/price" getPriceForItem
        route "/health" >=> Successful.OK "Everything's fine here, how are you?" ]