#salim-bt_docs
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shell quartz
Here, i create new payment method, then attach it to user. inside 'confirm' event, i need check if selected payment card already has been attached and create new payment method only if card NOT attached to user yet
distant willow
Hi, you can retrieve the PaymentMethod: https://docs.stripe.com/api/payment_methods/customer for that customer. However, can you confirm what your end goal is? Why would you create a second payment method on that customer if one already exists?
Are you just trying to de-duplicate cards?
shell quartz
no, i want create new payment only if card not exists yet. I just want to remove the duplication of cards
distant willow
You can look at the fingerprint of the card: https://docs.stripe.com/api/payment_methods/object#payment_method_object-card-fingerprint and ensure that these do not match. If there is not match, you can attach the payment method as this is a new payment method. If it matched, it means it is a duplicate card.
Uniquely identifies this particular card number. You can use this attribute to check whether two customers who’ve signed up with you are using the same card number, for example. For payment methods that tokenize card information (Apple Pay, Google Pay), the tokenized number might be provided instead of the underlying card number.
shell quartz
in old paymentRequest 'paymentmethod' event, i could get current card
distant willow
Can you reword the latest ask please?
shell quartz
sec
in old stripe.paymentRequest 'paymentmethod' event, i could get selected user's card. So Q is there similar way to get selected payment card in expressCheckoutElement without sending separated requests
distant willow
No. You could store that data in your database, and when collect the payment method, you can inpect the fingeprint data and decide to attach it to the customer or not.
shell quartz
ok thanks