karls_api | Stripe Developers | Page 1

compact dirgeBOT Jan 24, 2025, 3:40 PM

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brittle plover Jan 24, 2025, 3:40 PM

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Yeah you can't combine them

gloomy dagger Jan 24, 2025, 3:41 PM

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May I describe what I'm trying to do and perhaps we can come up with a solution?

brittle plover Jan 24, 2025, 3:41 PM

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Yep!

gloomy dagger Jan 24, 2025, 3:41 PM

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OK

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I am selling 5 products along with a subscription. It's a 5 for 1 deal, so the line items show: $24.99 and then $0.00, $0.00, for the next 4 items plus a $4.99 subscription.

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So.. I apply an adjusted amount for each line item, basically $24.99 - $24.99 = $0.00 and is added accordingly, I guess as a discount on the line item (I'd have to double check my code)... However, and aside from that, I'd like to offer a PROMO code, to offer 50% off of everything, or 100% off, or whatever.

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This is where I am stuck... question: can line items have adjusted discounts, but the complete invoice have a promo code?

brittle plover Jan 24, 2025, 3:47 PM

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How are you adding the line items?

gloomy dagger Jan 24, 2025, 3:47 PM

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looking..

brittle plover Jan 24, 2025, 3:47 PM

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The one-time line items

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And is this a checkout session?

gloomy dagger Jan 24, 2025, 3:48 PM

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No. I create the line items before the final invoice. The final invoice picks up the lineitems on checkout. Obviously this all happens in an instant.

brittle plover Jan 24, 2025, 3:49 PM

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But are you using Stripe Checkout for the payment page?

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Where is the customer checking out?

gloomy dagger Jan 24, 2025, 3:50 PM

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All custom code, custom for etc. Code incoming.

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What is the syntax for code?

brittle plover Jan 24, 2025, 3:51 PM

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Triple back ticks

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`

gloomy dagger Jan 24, 2025, 3:52 PM

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foreach(var item in Items)
{
    if(item.PriceDiscount != null)
    {
        var promo = new Service.StripePromotionCode(_key);
        var discount = promo.Lookup(item.PriceDiscount);

        if (discount != null && discount.DiscountAmount != null)
        {
            if (item.TotalAmount.HasValue)
            {
                item.TotalAmount -= discount.DiscountAmount;
            }
        }
        else if (discount != null && discount.DiscountPercent != null)
        {
            var discountpercent = discount.DiscountPercent / 100.0m;
            var discountamt = (long)(item.TotalAmount * discountpercent);
            if (item.TotalAmount.HasValue)
            {
                item.TotalAmount -= discountamt;
            }
        }
                    
    }
}

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Basically, I'm setting the item TotalAmount to whatever the calculated amount should be.

brittle plover Jan 24, 2025, 3:54 PM

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And that's for an invoice item?

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Is your checkout page elements?

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Or is the customer paying on the hosted invoice page?

gloomy dagger Jan 24, 2025, 3:56 PM

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Not using elements.

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Basic webflow is: 1) Create a payment intent 2) post to my backend 3) generate invoice line items 4) create subscription invoice and pay

brittle plover Jan 24, 2025, 3:58 PM

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Right

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But my question is how is the customer inputting card details

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I'm trying to get a sense for how your integration works

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Also why do you need to create a payment intent?

gloomy dagger Jan 24, 2025, 3:59 PM

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I host a secure order form on my website. I think it is elements that draws the form, I'm using stripe client-side code to draw the form and to handle the initial post to stripe and get back the payment intent.

brittle plover Jan 24, 2025, 4:00 PM

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Ah so the payment intent is the one from the subscription?

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Or you need to accept a separate 1-time payment?

gloomy dagger Jan 24, 2025, 4:01 PM

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Well, sort of. The payment intent doesn't know that I'm trying to create a subscription.

brittle plover Jan 24, 2025, 4:01 PM

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Ok so it's separate. Not the payment from the subscription that has all the line items

gloomy dagger Jan 24, 2025, 4:05 PM

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Correct. The line items are created, and then the subscriptin invoice is create, with:

PaymentBehavior = "default_incomplete",

brittle plover Jan 24, 2025, 4:06 PM

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I see ok that makes sense

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I think what you're doing via just reducing the invoice item amount makes the most sense

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That way the customer can still enter a promo code later

gloomy dagger Jan 24, 2025, 4:09 PM

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Would it help to look at the log item? Maybe it will shed some light on what exactly I sent ..

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Let me look for it.

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Here: req_jFBSfWuQndIzTQ

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My scenario is a little more complicated I am realizing.

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So.. Total Amount User should ever pay is $24.99. The susbscription is $4.99 and the 5 for 1 cost $24.99. So the finalize invoice price is: 5 for 1, $24.99 + $4.99 - (1st month subscription fee discount $4.99) = $24.99

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I think I see my own solution...

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Instead of adding a discount code to the subscription invoice, adjust the total amount. This shouldn't interfere then with the PROMO code.

brittle plover Jan 24, 2025, 4:18 PM

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gloomy dagger Instead of adding a discount code to the subscription invoice, adjust the total ...

yeah exactly

gloomy dagger Jan 24, 2025, 4:18 PM

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Well, thank you for being my sounding board!

brittle plover Jan 24, 2025, 4:19 PM

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Happy to help!

gloomy dagger Jan 24, 2025, 4:34 PM

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I may need more help. I'm getting the following error now: No such promotion code: 'MSO25FREE'. Please check your card or try another.

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Looks like I need to pass the promotion code ID, not the code provided by the user.

compact dirgeBOT Jan 24, 2025, 4:44 PM

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brittle plover Jan 24, 2025, 4:45 PM

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Can you share the request id where this happened?

gloomy dagger Jan 24, 2025, 4:45 PM

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req_jFBSfWuQndIzTQ

deft stump Jan 24, 2025, 4:46 PM

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Hi 👋

I'm stepping in as m colleague needs to go.

gloomy dagger Jan 24, 2025, 4:46 PM

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Thx.. I'm struggling with added a promo code, now discount code, to my subscription invoice on checkout..

deft stump Jan 24, 2025, 4:47 PM

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The error message you are receiving in that request https://dashboard.stripe.com/test/logs/req_jFBSfWuQndIzTQ is pretty explicit. You are passing BOTH a coupo (in the discounts parameter) and a promotion_code. You can't do both

gloomy dagger Jan 24, 2025, 4:47 PM

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*adding

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Yep, we come to this conclussion. I am adding a promo code in place of a discount code when present.

deft stump Jan 24, 2025, 4:48 PM

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Okay but in that request you shared you included both instead of one or the other. Your code will need to not pass the coupon ID when passing the promo code ID

gloomy dagger Jan 24, 2025, 4:49 PM

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Dealing with this error now: You must pass one of plan, price, or price_data.. Please check your card or try another.

req_SltPVQqsA8bUpS

deft stump Jan 24, 2025, 4:49 PM

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For what it's worth, you can use the discounts parameter to pass either the Coupon ID or Promo Code ID
https://docs.stripe.com/api/subscriptions/create#create_subscription-discounts

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Again, the error message says what is wrong

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You didn't provide a Price the Subscription is for

gloomy dagger Jan 24, 2025, 4:51 PM

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OK.. let me pass a promo code, instead of coupon id (i like that) and figure out what happened to my subscription price! I must have just broke that.

deft stump Jan 24, 2025, 4:52 PM

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I recommend slowing down and reviewing what you code is doing to esnure you provide all the required and optional parameters to get the behavior you expect

gloomy dagger Jan 24, 2025, 4:53 PM

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back to the discounts, I still have to provide the ID in each case, which means I have to look it up myself to determine the ID on the fly.. no biggy, just confirming that there is no way to pass "SOMEFREECODE" to stripe.

deft stump Jan 24, 2025, 4:53 PM

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Correct. we require the ID, not the code

gloomy dagger Jan 24, 2025, 4:54 PM

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Yes, slowing down.. everything has been working.. my rewrite for PROMO code has tripped me up a bit.

deft stump Jan 24, 2025, 4:54 PM

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That's understandable.

gloomy dagger Jan 24, 2025, 5:01 PM

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ok, dumb UI woopsy fixed! testing again..

gloomy dagger Jan 24, 2025, 5:20 PM

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Stuck. Have a look at this screeshot please.

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This is throwing an exception. I have a promo code: promo_1QkofUDOnh5qjbu1WxpAM3jn

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Not sure how to attach it.

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I take that back..

deft stump Jan 24, 2025, 5:24 PM

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To be fair, I think the .NET framework was designed to make developers sad so I might be a bit biased 😅

gloomy dagger Jan 24, 2025, 5:25 PM

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oh! jab

deft stump Jan 24, 2025, 5:25 PM

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But I'm starting to get into static typed languages so maybe I'll change my tune

gloomy dagger Jan 24, 2025, 5:26 PM

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your language of choice?

deft stump Jan 24, 2025, 5:27 PM

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Python is my general purpose solution language, it's how I got started. Lately I've been doing some Android development so I've gotten into Kotlin.

For supporting Stripe devs, we have to be basically familiar with .NET, Java, Go, Node, PHP, Python, & Ruby but this just means having a basic setup where we can drop code snippets and run them.

gloomy dagger Jan 24, 2025, 5:28 PM

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OK, I have a new issue. Can you help?

deft stump Jan 24, 2025, 5:29 PM

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That depends on what the issue is 😅

gloomy dagger Jan 24, 2025, 5:29 PM

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Grabbing the IdempotencyKey after invoice paid.

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I call invoice service Pay method, which I than grab the key. However in this case, my invoice item status is already paid, but I don't have, or I should say, the key is Null

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quite honestly, this is new behaviour.

deft stump Jan 24, 2025, 5:36 PM

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Sorry but I'm kind of confused about what objects you are referring to. The service.Pay method should return the full Invoice object: https://docs.stripe.com/api/invoices/pay?lang=dotnet

gloomy dagger Jan 24, 2025, 5:36 PM

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Yes, in this case it was alreay paid. I'm still digging.

deft stump Jan 24, 2025, 5:37 PM

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Can you share an Invoice ID so I can review what you are referring to?

gloomy dagger Jan 24, 2025, 5:37 PM

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yes, 1 sec.

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in_1Qkqg4DOnh5qjbu1OagInSXT

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OK, it is a zero total invoice. that changes things

deft stump Jan 24, 2025, 5:38 PM

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Okay yeah we mark those as paid immediately

gloomy dagger Jan 24, 2025, 5:39 PM

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hmmm. ok... now I'm in my webhook handler

deft stump Jan 24, 2025, 5:39 PM

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Okay ....

gloomy dagger Jan 24, 2025, 5:45 PM

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by the way, Stripe API and Dev tools, are #1

deft stump Jan 24, 2025, 5:45 PM

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🙌 🎉

gloomy dagger Jan 24, 2025, 5:46 PM

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100 years newer than PayPal!

gloomy dagger Jan 24, 2025, 6:02 PM

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So.. back to the zero invoice.

deft stump Jan 24, 2025, 6:02 PM

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Okay,

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So that Invoice was created as part of this request; https://dashboard.stripe.com/test/logs/req_0jC6sFa77TwGBR to create a Subscription

gloomy dagger Jan 24, 2025, 6:04 PM

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I use the ImpodetencyKey (worse name ever, can never remember it) to look up in my log the webhook event.

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Let me give you the latest test...

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req_YVd8SlnzIanogQ

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The zero pay scenario, where/when do I get the key?

deft stump Jan 24, 2025, 6:05 PM

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I think you are misunderstanding what the idempotency key does

gloomy dagger Jan 24, 2025, 6:05 PM

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It exists, just not part of my current flow. 94baed9a-0079-4981-a14a-2f7d10849846

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I only rely on it for this one specific scenario.

deft stump Jan 24, 2025, 6:06 PM

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Okay gonna ignore this for a sec while I explain what these keys are doing.

The idempotency key is designed for a situation where you send an API request but, due to whatever reason, you fail to get a response.

gloomy dagger Jan 24, 2025, 6:06 PM

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k

deft stump Jan 24, 2025, 6:06 PM

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You can then make a second request to the same API with that request ID to get the saved response

gloomy dagger Jan 24, 2025, 6:07 PM

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k

deft stump Jan 24, 2025, 6:07 PM

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Even if the response is an error and your second request would be successful, if you pass the key we will return the error

gloomy dagger Jan 24, 2025, 6:07 PM

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k

deft stump Jan 24, 2025, 6:07 PM

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So, your system is attempting to pay and invoice that is already paid, and you want to collect the key for that API request?

gloomy dagger Jan 24, 2025, 6:08 PM

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yes, but for this reason. The invoice.paid webhook includes the key.

deft stump Jan 24, 2025, 6:09 PM

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It includes the idempotency key for the /v1/subscriptions request

gloomy dagger Jan 24, 2025, 6:09 PM

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hold on..

deft stump Jan 24, 2025, 6:09 PM

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because that is the API request that triggered this event

gloomy dagger Jan 24, 2025, 6:10 PM

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This key (typically) is available when you call Pay on the invoice. At this moment, I grab the key, and then in my UI, I wait for this key to appear in my logs... then user flow continues.

deft stump Jan 24, 2025, 6:10 PM

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This key (typically) is available when you call Pay on the invoice

Available how? From where?

gloomy dagger Jan 24, 2025, 6:11 PM

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So the key is still created, I just don't know how to grab it without calling Pay on the invoice.

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Let me show you my code... 1 sec.

deft stump Jan 24, 2025, 6:12 PM

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Calling the /v1/invoice/*/pay endpoint will generate a new idempotency key that corresponds to the failing request

gloomy dagger Jan 24, 2025, 6:13 PM

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Correct.. however when automatically paid due to zero total amount invoice, it is unvailable, or at least it is based on my implmentation. There must be a lookup... here's my code.

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switch (subinvoice.Status)
{
    case "draft":
        fininvoice = invservice.FinalizeInvoice(invoice.Id, finalizeOptions);
        invpaid = invservice.Pay(invoice.Id, payoptions);
        break;
    case "open":
        invpaid = invservice.Pay(invoice.Id, payoptions);
        break;
    case "paid":
        invpaid = subinvoice;
        break;
    case "finalized":
        break;
}

return new Model.StripeAddSubscriptionResponse()
{
    IdempotencyKey = invpaid.StripeResponse.IdempotencyKey,
    ID = newsub.Id
};

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So, invpaid is the local variable that is the result of calling the Pay method which contains the key value which I pass back to UI.

deft stump Jan 24, 2025, 6:15 PM

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This is the API request that triggered the Invoice to be paid: https://dashboard.stripe.com/test/logs/req_YVd8SlnzIanogQ

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When I look at the Response headers I can see the idempotency key is 76e5ecae-70ef-4a6a-bafc-faa31b22ce11

gloomy dagger Jan 24, 2025, 6:16 PM

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ok, so can I grab this request in code to then grab the Iempotency key?

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*lookup

deft stump Jan 24, 2025, 6:18 PM

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If you want to have it for whatever reason, you would need to collect it in the response to the above request. In that case the object being returned is the Subscription.

It's really unclear to me what the code above is handling. When does execution reach this code?

gloomy dagger Jan 24, 2025, 6:20 PM

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Pseudo:
Pay Invoice
Deliver Key to UI
Webhook Event is Logged (my system)
UI looks for Paid.Invoice with this Key
Loops several times
When found, UI flow continues.

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Not found, Warning message delivered to customer.

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Looking for key now in subscription request.

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testing...

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LatestInvoice is not set on the subscription response

deft stump Jan 24, 2025, 6:28 PM

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Can you share the request ID?

gloomy dagger Jan 24, 2025, 6:28 PM

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1 sec, yes.

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req_AimNBPR3b85fbN

deft stump Jan 24, 2025, 6:29 PM

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I'm looking at the latest invoice in the response here: https://dashboard.stripe.com/test/logs/req_AimNBPR3b85fbN

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in_1Qkrb1DOnh5qjbu1Nl1C9HIg

gloomy dagger Jan 24, 2025, 6:30 PM

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yes

deft stump Jan 24, 2025, 6:30 PM

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status: "paid",

gloomy dagger Jan 24, 2025, 6:30 PM

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Yes, exactly.

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Here's some code:

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invpaid = newsub.LatestInvoice;
invpaid.StripeResponse IS NULL

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So this:
IdempotencyKey = invpaid.StripeResponse.IdempotencyKey
fails

deft stump Jan 24, 2025, 6:32 PM

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The Response is not on the Invoice

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It should be on the newsub because that is the object created by the API call

gloomy dagger Jan 24, 2025, 6:33 PM

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checking

deft stump Jan 24, 2025, 6:33 PM

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The creation of the Invoice is a side effect of the creation of the Subscription

gloomy dagger Jan 24, 2025, 6:34 PM

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newsub.LatestInvoice.StripeResponse.IdempotencyKey
'newsub.LatestInvoice.StripeResponse.IdempotencyKey' threw an exception of type 'System.NullReferenceException'
Data: {System.Collections.ListDictionaryInternal}
HResult: -2147467261
HelpLink: null
InnerException: null
Message: "Object reference not set to an instance of an object."
Source: "bb586fa3c3ac491399c8f3fb435bf700"
StackTrace: " at <>x.<>m0(StripeSubscription <>4__this, StripeAddSubscriptionRequest Request)"
TargetSite: {System.String <>m0(msoStripe.Service.StripeSubscription, msoStripe.Model.StripeAddSubscriptionRequest)}

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LatestInvoice?

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ha! Found it!

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newsub.StripeResponse.IdempotencyKey

deft stump Jan 24, 2025, 6:36 PM

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That is what I have been saying all along

gloomy dagger Jan 24, 2025, 6:36 PM

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my bad..

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final test and then moving to production! here we go..

deft stump Jan 24, 2025, 6:40 PM

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🤞

compact dirgeBOT Jan 24, 2025, 6:45 PM

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gloomy dagger Jan 24, 2025, 6:47 PM

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Bingo! All set.

deft stump Jan 24, 2025, 6:48 PM

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Woo hoo 🎉 I'm glad we got there! 🙂

gloomy dagger Jan 24, 2025, 6:49 PM

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Much grasias

deft stump Jan 24, 2025, 6:49 PM

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Happy to help, it's why we're here.

#karls_api