Elixir/Phoenix markdown email templates

email_view.ex

defmodule MyApp.EmailView do
  use MyApp.Web, :view
  
  def render(template, format, %{assigns: assigns}) do
    rendered = render_to_string(__MODULE__, template, assigns)

    case format do
      :text -> rendered
      :html -> Earmark.to_html(rendered)
    end
  end
end