       {"Content-type", "application/json"},
       {"Expires-at", expires_at},
       {"Signature", signature(request)},
-      {"Client-id", @client_id},
-      {"Service-secret", @service_secret}
+      {"Client-id", client_id},
+      {"Service-secret", service_secret}
     ]
 
     {:ok, response} = HTTPoison.request(method, url, body, headers)

  iex> ExMoney.SaltedgeClient.request(:post, "logins", body)
  """
  def request(method, endpoint, body \\ "") do
    url = @base_url <> endpoint
    str_method = to_string(method) |> String.upcase
    request = "#{expires_at}|#{str_method}|#{url}|#{body}"

defmodule ExMoney.Saltedge.Client do
  @base_url "https://www.saltedge.com/api/v2/"

  @doc """
