stubbed_api_example.rb

def save_card

  # Stubbed method on the api wrapper
  response = Api::save_card(card_info)

  if response.success?
    # do something because it was saved
  else 
    # let user know it wasnt saved
  end

end

def charge_card

  # Stubbed method on the api wrapper
  response = Api::charge_card(amount, customer_id, etc)

  if response.success?
    # yeah!  we got the money and they bought something
  else
    # Failed to charge card...uh oh!
  end

end