#darkstar_unexpected

1 messages · Page 1 of 1 (latest)

snow ridgeBOT
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flint inletBOT
elfin plinth
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Stripe doesn't de-duplicate the payment methods to save on the customer. This is the video showing how to de-duplicate payment methods:

YouTube
Stripe Developers
Deduplicate payments methods

Learn how to save a payment method without duplication. This video uses the Deduplicate payment methods tinydemo on Glitch. Remix the project to follow along: https://glitch.com/edit/#!/stripe-tinydemos-deduplicate-cards

Presenter

Charles Watkins - Developer Advocate at Stripe - https://twitter.com/charlesw_dev

Table of contents

00:00 ...

▶ Play video
How can I detect duplicate cards or bank accounts? : Stripe: Help &...

Find help and support for Stripe. Our support site provides answers on all types of situations, including account information, charges and refunds, and subscriptions information. Get your questions answered and find international support for Stripe.

frail phoenix
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That's a bummer because I don't create payment methods manually. The payment intent is created on the server (.NET) before the checkout (custom flow) page is displayed and then it's all taken care of by Stripe's own Payment Elements JS library. I just call the .confirmPayment() function at the end. So at the time of PI creation, I know nothing about the payment method that will be used. And I also don't save the payment method to the Customer object, it happens automatically...

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The linked YT video explicitly uses card payment, whereas we use Payment Element that automatically supports various payment methods.

elfin plinth
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Ah I see! This is also supported in Payment Element with deferred intent flow, i.e. collect payment method in Payment Element first, then charge later: https://docs.stripe.com/payments/accept-a-payment-deferred

Once the payment method details is collect, your server can retrieve the Payment Method information to check the fingerprint exists.

  • If the fingerprint exists, then old payment method should be used
  • If the fingerprint doesn't exist, then new payment method can be used
Collect payment details before creating an Intent

Build an integration where you can render the Payment Element prior to creating a PaymentIntent or SetupIntent.

frail phoenix
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OK. Is that the only solution?

elfin plinth
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Yup! This is the only solution

frail phoenix
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Alright. Thank you very much!