philomena/lib/philomena_web/plugs/render_time_plug.ex

defmodule PhilomenaWeb.RenderTimePlug do
  import Plug.Conn

  # No options
  def init([]), do: false

  # Assign current time
  def call(conn, _opts) do
    conn |> assign(:start_time, Time.utc_now())
  end
end