Stripe - Add new card to existing customer

Question

I have a need to add a card to a pre-existing customer. Here's what I did:

1. obtain token from user submission

card_token = request.POST('stripeToken')

2. retrieve a customer

customer =  stripe.Customer.retrieve('cus_xxxxxxxxxx')

3. add card to this customer

customer.Cards.create(card=card_token)

It is # 3 that I'm having trouble because it looks like the customer doesn't have method Cards, but I've seen people done it elsewhere.

How should I achieve this?

Answer 1

If you are on the 2015-02-18 API version or later then the cards attribute has been changed to sources as you can see in the changelog

The documentation on the Create Card API shows the following code now:

customer = stripe.Customer.retrieve('cus_xxxxxxxxxx')
customer.sources.create(card=card_token)

You can find your API version in the API keys settings in the dashboard and you can also use the Stripe-Version header to force your API request to an older API version so that cards still work as explained in the Versioning documentation:

stripe.api_version = '2015-01-26'

Answer 2

2019 Update: Things have changed a bit with Strong Customer Authentication (SCA) requirements in Europe; you'll now probably want to use the Setup Intents API to collect card details upfront for future payments.

This new API is both PCI and SCA compliant. You can learn more here
or check out this sample code on GitHub: https://github.com/stripe-samples/saving-card-without-payment.

You can also do this entirely with Checkout now as well!