ethan-tran_best-practices | Stripe Developers | Page 1

ancient coyoteBOT May 8, 2025, 4:14 AM

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long forge May 8, 2025, 4:17 AM

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Hi there, you can consider using the finalize payments on the server flow https://docs.stripe.com/payments/finalize-payments-on-the-server?platform=web&type=payment#submit-payment

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The key idea here is that you collect the payment details from client-side first, send the details to backend, so that you can inspect the card iussing country and adjust the paymentIntent amount accordingly.

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btw are you using Stripe mobile SDK?

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If so, you should follow this guide https://docs.stripe.com/payments/mobile/accept-payment?platform=ios&type=payment#submit-payment

gaunt sphinx May 8, 2025, 4:22 AM

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Hi Jack, yes I', using Stripe mobile SDK, let say, we collect the card information first. For example: The user fills in his card type is a Domesic card, then all of my API works. What if he taps an international card after? Because we only know after his tap

long forge May 8, 2025, 4:23 AM

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What do you mean by " What if he taps an international card after" ?

gaunt sphinx May 8, 2025, 4:25 AM

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I mean he pays the money with an international card, but he filled domestic before. There will be a conflict, right?

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Because we are building a taxi system, so we can't ask the Passenger to fill in the payment method. He only pay when he finish the trip

long forge May 8, 2025, 4:31 AM

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Hmm, why can't you charge with the card that you collected earlier?

gaunt sphinx May 8, 2025, 4:33 AM

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Because we are building a taxi system, so we can't ask the Passenger to fill in the payment method. Currently, we don't collect the passenger card detail

long forge May 8, 2025, 4:36 AM

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Ok, so it's about terminal integration, is it?

gaunt sphinx May 8, 2025, 4:37 AM

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yes, that's right. We are using tap to pay as Passenger payment method

long forge May 8, 2025, 4:39 AM

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Ok, https://docs.stripe.com/terminal/features/incremental-authorizations you'll want to use incremental authorization so that you can increase the authorized amount based on the card issuing country before capturing it.

Incremental authorizations

Increase the authorized amount before capturing a payment.

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Alternatively, you can also authorize a larger amount and only capture the needful later.

gaunt sphinx May 8, 2025, 4:50 AM

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This is only affect with capture payment intent manually, right?

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@long forge

long forge May 8, 2025, 4:51 AM

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Yes you are right, you need to set capture_method to manual.

gaunt sphinx May 8, 2025, 4:54 AM

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Do we have any way for automatic?

long forge May 8, 2025, 4:55 AM

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No. In fact manual capture is recommended for a terminal integration to avoid duplicate charges.

gaunt sphinx May 8, 2025, 4:56 AM

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Thanks for your suggestion, let me investigate this aspect. In case, I have question, you are still in thread, right?

#ethan-tran_best-practices