Pain-PaymentElement | Stripe Developers | Page 1

gleaming dome Jun 27, 2022, 5:37 AM

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Hi there, you can listen to PaymentElement change event and examine the complete flag (https://stripe.com/docs/js/element/events/on_change?type=paymentElement#element_on_change-handler-complete) . This flag tells you whether the required fields in PaymentElement have been filled.

Stripe JS Reference

crimson sinew Jun 27, 2022, 5:38 AM

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Is there no function I can call to, to just validate it?

gleaming dome Jun 27, 2022, 5:46 AM

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You don't need to call a function to validate, StripeElement validates the input automatically.

crimson sinew Jun 27, 2022, 5:49 AM

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Alright, I've just disabled the button until the complete parameter is returned. I was looking for a function but this works too.

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Is there a way to get the last4 before submitting?

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(like from the elements maybe?)

gleaming dome Jun 27, 2022, 5:57 AM

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You can, but you need to use cardElement instead of paymentElement.

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With cardElement, you can call stripe.createPaymentMethod() to get a PaymentMethod object, from there you can access the last4 property of a card PaymentElement https://stripe.com/docs/api/payment_methods/object#payment_method_object-card-last4

Stripe API reference – The PaymentMethod object – curl

Complete reference documentation for the Stripe API. Includes code snippets and examples for our Python, Java, PHP, Node.js, Go, Ruby, and .NET libraries.

crimson sinew Jun 27, 2022, 5:59 AM

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I see, thanks for the info.

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