Zii1wF0C

1defmodule Foo
2  defp config do
3    with cfg when is_list(cfg) <- Keyword.get(Shippex.config, :ups, {:error, :not_found}),
4
5         sk <- Keyword.get(cfg, :secret_key,      {:error, :not_found, :secret_key}),
6         sn <- Keyword.get(cfg, :shipper_number,  {:error, :not_found, :shipper_number}),
7         un <- Keyword.get(cfg, :username,        {:error, :not_found, :username}),
8         pw <- Keyword.get(cfg, :password,        {:error, :not_found, :password}) do
9
10         %{
11           username: un,
12           password: pw,
13           secret_key: sk,
14           shipper_number: sn
15         }
16    else
17      {:error, :not_found, token} -> raise Shippex.InvalidConfigError,
18        message: "UPS config key missing: #{token}"
19
20      {:error, :not_found} -> raise Shippex.InvalidConfigError,
21        message: "UPS config is either invalid or not found."
22    end
23  end
24end