Using a struct within a struct produces errors

Questions & Help Questions
, , ,
6

It’s weird because this is perfectly valid:

defmodule Servy.Handler do
  alias Servy.Conv

  @moduledoc "Handles HTTP requests"

  @pages_path Path.expand("pages", File.cwd!())

  @doc "Transforms the request into a response."
  def handle(request) do
    request
    |> route
    |> format_response
  end

  def route(%Conv{method: "GET", path: "/wildthings"} = conv) do
    %{conv | status: 200, resp_body: "Bears, Lions, Tigers"}
  end

  def route(%Conv{method: "GET", path: "/pages/" <> file} = conv) do
    Path.expand("../../pages", __DIR__)
    |> Path.join(file <> ".html")
    |> File.read()
    |> handle_file(conv)
  end

  def route(%Conv{method: "GET", path: "/about"} = conv) do
    Path.expand("../../pages", __DIR__)
    |> Path.join("about.html")
    |> File.read()
    |> handle_file(conv)
  end

  def route(%Conv{path: path} = conv) do
    %{conv | status: 404, resp_body: "No #{path} here"}
  end

  def format_response(%Conv{} = conv) do
    # TODO: Use values in the map to create an HTTP response string:
    """
    HTTP/1.1 #{Conv.full_status(%Conv{} = conv)}
    Content-Type: text/html
    Content-Length: #{byte_size(conv.resp_body)}

    #{conv.resp_body}
    """
  end
end

request = """
GET /wildthings HTTP/1.1
Host: example.com
User-Agent: ExampleBrowser/1.0
Accept: */*

"""

response = Servy.Handler.handle(request)

IO.puts(response)