Railsway oriented programming in elixir

rails.ex

  def create(order_params, customer, auth) do
    with {:ok, order} <- validate_order(order_params, customer),
         {:ok, order} <- validate_tour_shipment_in_backend(order, auth),
         {:ok, order} <- Repo.insert(order) do
      {:ok, order}
    else
      {:error, changeset} -> {:error, changeset}
    end
  end