Matt11-PI | Stripe Developers | Page 1

vagrant zinc Jun 23, 2022, 9:50 AM

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👋 happy to help

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could you please provide the PI's id?

warm mountain Jun 23, 2022, 9:50 AM

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Hello!

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of course pi_3LDbcHApMCw5clA31mqPheW2

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can I try to explain my current logic?

vagrant zinc Jun 23, 2022, 9:51 AM

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yes sure

warm mountain Jun 23, 2022, 9:51 AM

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we have an automatic script that look for out expired subscriptions and creates a payment_intent for renew them.
I create id with ruby apis like this:

payment_intent = ::Stripe::PaymentIntent.create({
                                                          amount: amount,
                                                          customer: user.stripe_customer_id,
                                                          currency: 'eur',
                                                          payment_method_types: ['card'],
                                                          setup_future_usage: 'off_session',
                                                          payment_method: payment_method_id
                                                        })

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after that I try to confirm it like this

::Stripe::PaymentIntent.confirm(
            payment_intent.id,
            { payment_method: payment_method_id }
          )

vagrant zinc Jun 23, 2022, 9:54 AM

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ok

warm mountain Jun 23, 2022, 9:57 AM

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when I land on my platform I check if the subscription is in 3DS status and do this:

if intent['status'] == 'requires_action'
  return_url = subscribe_sca_success_url
  intent = Stripe::PaymentIntent.confirm(
    intent_id,
    {
      return_url: return_url
    }
  )
  if intent && intent['next_action'] && intent['next_action']['redirect_to_url'] && intent['next_action']['redirect_to_url']['url']
    to_url = intent['next_action']['redirect_to_url']['url']
    redirect_to to_url
  end
end

I try to confirm it with a return_url

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but it seems that the customer entered an infinite loop looking the payment_intent log on Stripe dashboard

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do you understand what I'm doing wrong?

blissful beacon Jun 23, 2022, 10:00 AM

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Hey, taking over here

we have an automatic script that look for out expired subscriptions and creates a payment_intent for renew them.
This sounds non conventional. What's an 'expired' subscription?

warm mountain Jun 23, 2022, 10:02 AM

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I have a database table named 'subscriptions' where we write internal subscriptions with from/to dates. An expired subscription is a row with today greater than "to" field

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So my 'subscriptions' are nothing to do with Stripe subscriptions. It is only a custom way to manage internal subscriptions. And for every renewal we create one-shot payment intents.
So you need to think that our automatic script, check if there is a database row with "to"<"today" and create a payment_intent with an amount.

blissful beacon Jun 23, 2022, 10:10 AM

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Why are you doing server-side confirmation?

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You should just instead bring your customer back on-session and use confirmPayment from Stripe.js

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They will likely need to do that anyway, so the server-side method is pointless in this case

warm mountain Jun 23, 2022, 10:12 AM

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I'm doing it because the automatic script is doing all the work.
Don't know how to bring the customer back on-session and confirm it from Stripe.js

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Is it possible to fix this and do it in the server side way?
Do I need to confirm it with the redirect_url already in the first attempt?

blissful beacon Jun 23, 2022, 10:35 AM

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You will need to bring your user on-session to complete the 3DS flow (if requested), regardless of whether you confirm server-side or nor

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This is way it's best to just use confirmPayment with Stripe.js – you pass it the PI client_secret and it handles the rest

warm mountain Jun 23, 2022, 10:36 AM

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how I achieve this procedure?

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I don't know how

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So I create the payment_intent server-side and it's in 'requires_confirmation' status, is correct?

blissful beacon Jun 23, 2022, 10:47 AM

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Yep, or you can pass confirm: true if you're passing a payment_method too

warm mountain Jun 23, 2022, 10:48 AM

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this is my api call

        payment_intent = ::Stripe::PaymentIntent.create({
                                                          amount: amount,
                                                          customer: user.stripe_customer_id,
                                                          currency: 'eur',
                                                          payment_method_types: ['card'],
                                                          setup_future_usage: 'off_session',
                                                          payment_method: payment_method_id
                                                        })

blissful beacon Jun 23, 2022, 10:49 AM

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At that point, it'll either succeed or 3DS/auth will be requested (status: 'requires_action'). At that point you'd bring your user back on-session and use confirmPayment. This is all outlined here: https://stripe.com/docs/payments/payment-intents/verifying-status

Payment status updates

Monitor and verify payment status, so that you can respond to successful and failing payments.

blissful beacon Jun 23, 2022, 10:49 AM

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warm mountain this is my api call ``` payment_intent = ::Stripe::PaymentIntent.create(...

Yep, so if you pass confirm: true there will automatically attempt to confirm it (which removed the need for that call server-side)

warm mountain Jun 23, 2022, 10:50 AM

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so the confirm:true flag is equal to do this?

::Stripe::PaymentIntent.confirm(
            payment_intent.id,
            { payment_method: payment_method_id }
          )

blissful beacon Jun 23, 2022, 10:50 AM

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Yep

warm mountain Jun 23, 2022, 10:51 AM

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and if there's not difference why I cannot keep "my version"?

blissful beacon Jun 23, 2022, 10:51 AM

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At that point, depending on the card used, the PI status will either be requires_action, succeeded or requires_payment_method

blissful beacon Jun 23, 2022, 10:51 AM

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warm mountain and if there's not difference why I cannot keep "my version"?

Well, you can. The fundamental issue here is that you can't do this flow entirely in the server without Stripe.js involvement

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Because a good portion of these payments are going to require 3DS/auth from the user

warm mountain Jun 23, 2022, 10:52 AM

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I pass you a customer on Stripe, is mine I just tried

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cus_LveVg1CAg4lQF9

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I did the current logic, so created a payment_intent and confirmed server-side

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so the pi_3LDnKvApMCw5clA31WHU0bCF went to requires_action

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and this is what happend on the platform

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redirect to home page,
redirect to 3ds page
confirmed payment
and later insufficient funds

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so I don't understand why this worked (pi_3LDnKvApMCw5clA31WHU0bCF is mine) and this one don't (pi_3LDbcHApMCw5clA31mqPheW2 another customer)

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the only difference I see is that mine is like this:

"next_action": {
    "type": "use_stripe_sdk",
    "use_stripe_sdk": {
      "type": "three_d_secure_redirect",
    }
}

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and the customer's one is like this:

"next_action": {
    "type": "use_stripe_sdk",
    "use_stripe_sdk": {
      "type": "stripe_3ds2_fingerprint",
    }
}

blissful beacon Jun 23, 2022, 11:00 AM

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Yep, this is why you should use Stripe.js instead of handling the next action yourself!

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In this case its a 3DS2 biometric auth (i.e. FaceID, TouchID or similar)

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Which I guess your integration can't handle because you're not using Stripe.js

warm mountain Jun 23, 2022, 11:02 AM

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so when I land on my platform I need to redirect the customer to a custom page with Stripe.js?

blissful beacon Jun 23, 2022, 11:03 AM

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Yep, using confirmPayment from Stripe.js: https://stripe.com/docs/js/payment_intents/confirm_payment

Stripe JS Reference

warm mountain Jun 23, 2022, 11:04 AM

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confirmPayment or confirmCardPayment? beacuse earlier you linked me this: https://stripe.com/docs/payments/payment-intents/verifying-status

Payment status updates

Monitor and verify payment status, so that you can respond to successful and failing payments.

blissful beacon Jun 23, 2022, 11:09 AM

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Yeah, sorry. you need this: https://stripe.com/docs/js/payment_intents/confirm_card_payment#stripe_confirm_card_payment-existing

Stripe JS Reference

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As you're not using Payment Element and have an existing pm_xxx object

warm mountain Jun 23, 2022, 11:10 AM

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ok thanks! but into the page what I need to put? the html I mean

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to let Stripe build the page with JS

blissful beacon Jun 23, 2022, 11:12 AM

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Well this is the thing, if requires_action you're gonna need to bring your user back to a page in order for them to complete the 3DS auth

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So you'll need to build that page/UI

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btw, if you were using Billing we take care of a lot of this

warm mountain Jun 23, 2022, 11:13 AM

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so for example a page with a button, anche the action of that button is:

stripe
  .confirmCardPayment('{PAYMENT_INTENT_CLIENT_SECRET}', {
    payment_method: '{PAYMENT_METHOD_ID}',
  })
  .then(function(result) {
    // Handle result.error or result.paymentIntent
  });

?

blissful beacon Jun 23, 2022, 11:13 AM

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Yup 😄

warm mountain Jun 23, 2022, 11:14 AM

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Billing is the subscriptions logic from Stripe?

blissful beacon Jun 23, 2022, 11:14 AM

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Yep, exactly

warm mountain Jun 23, 2022, 11:14 AM

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we just moved away from this 😄

blissful beacon Jun 23, 2022, 11:14 AM

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Oh, how come?

warm mountain Jun 23, 2022, 11:15 AM

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because we have multiple gateways in our application so we don't want to have customer data all over them,

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we have everything on our database and the make a single payment when needed

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So with confirmCardPayment I don't need to do something like:

var stripe = Stripe('#{Rails.configuration.stripe[:publishable_key]}');
var elements = stripe.elements();
var card = elements.create('card', {style: style});
card.mount('#card-element');

?

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to get a stripe form

blissful beacon Jun 23, 2022, 11:19 AM

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Yes, you'll need to initialise Stripe.js but you don't need an Elements instance no (as you already have the pm_xxx object)

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If you wanted the user to provide new payment details then you'd need a Card Element yes

warm mountain Jun 23, 2022, 11:20 AM

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ok nice

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I'm gonna try

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can you keep this channel open please?

blissful beacon Jun 23, 2022, 11:21 AM

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Sure, my colleague @limpid zenith is taking over now – they can answer any follow-ups!

warm mountain Jun 23, 2022, 11:21 AM

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last question

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how can handle the redirect_url?

blissful beacon Jun 23, 2022, 11:21 AM

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How do you mean?

warm mountain Jun 23, 2022, 11:22 AM

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If the 3ds is successfull I need to redirect the user to another URL

blissful beacon Jun 23, 2022, 11:23 AM

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You'd do that in your promise chain:

stripe
  .confirmCardPayment('{PAYMENT_INTENT_CLIENT_SECRET}', {
    payment_method: '{PAYMENT_METHOD_ID}',
  })
  .then(function(result) {
    if (result.paymentIntent) window.location.assign(redirect)
  });

warm mountain Jun 23, 2022, 11:23 AM

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oh ok thanks a lot!! 🙂

rigid horizon Jun 23, 2022, 1:04 PM

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Hi @warm mountain 👋 re-opened

warm mountain Jun 23, 2022, 1:26 PM

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Hi thanks!

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I'd like to ask about the PAYMENT_INTENT_CLIENT_SECRET

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I'm passing the pi_ but it tells me that is wrong. What I'm I missing?

soft orbit Jun 23, 2022, 1:36 PM

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What is the exact error that you are getting here?

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Does it have the format pi_1234 or pi_1234_secret_5678?

warm mountain Jun 23, 2022, 1:48 PM

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pi_xyz

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how can i get pi_1234_secret_5678?

soft orbit Jun 23, 2022, 1:52 PM

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It will be in the client_secret field on the payment intent object after you have created it https://stripe.com/docs/api/payment_intents/object#payment_intent_object-client_secret

Stripe API reference – The PaymentIntent 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.

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