external_service.ex

defmodule Owl.MacawService do
  @derive [Poison.Encoder]
  defstruct [:id,
             :name,
             :code,
             :notification_endpoint,
             :legacy_notifications,
             :created_at,
             :updated_at]

  def fetch(code) do
    with {:ok, response} <-
      MGageClient.get("#{Application.get_env(:owl, :macaw)[:url]}/admin/services/#{code}",
                   ["Content-type": "application/json"],
                   [access_id: Application.get_env(:owl, :macaw)[:access_id],
                    secret: Application.get_env(:owl, :macaw)[:secret]]),
    do:  {:ok, Poison.decode!(response.body, as: %Owl.MacawService{})}
  end
end