Eranga | Stripe Developers | Page 1

lilac pollenBOT Oct 20, 2022, 2:21 AM

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viral bolt Oct 20, 2022, 2:22 AM

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Can you share the subscription ID or request ID?

tawdry granite Oct 20, 2022, 2:26 AM

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Sure

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There are few

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Because of different scenarios

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sub_1Lu7xjC8JGuaUdU67HVe8S4N

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The above one is with a discount

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This is a subscription without a discount sub_1K13BIC8JGuaUdU60tD1KntB

viral bolt Oct 20, 2022, 2:30 AM

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I don't quite understand your question

tawdry granite Oct 20, 2022, 2:31 AM

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Sorry, let me give you a bit more information

viral bolt Oct 20, 2022, 2:32 AM

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Can you explain more what is the expected outcome you're looking for and the problem you're facing?

tawdry granite Oct 20, 2022, 2:32 AM

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I am building a UI where it shows the description of the upcoming invoice when the user do changes to the subscription.

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Let's say one of my customer has a coupon attached to the subscription and they try to modify the quantity

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Then, I am going to show something like this

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And if there is no coupon applied, I want to show the description like this.

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To do this, I need to differentiate different invoice items in the upcoming invoice

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Am I clear so far? 👼

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(BTW this is the same thing we can see in the invoice generated by Stripe)

viral bolt Oct 20, 2022, 2:38 AM

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Yup, it's clear so far! Let me check and get back to you

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Am I right to understand you would like to know how to differentiate the line item with discounts in upcoming invoice, so that you can display the information accordingly?

tawdry granite Oct 20, 2022, 2:39 AM

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Yes, that is what I am trying to achieve

viral bolt Oct 20, 2022, 2:56 AM

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If the upcoming invoice line item has a discount, it will contain discount_amounts

tawdry granite Oct 20, 2022, 2:57 AM

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Cool, so it is okay to rely on the length of discount_amounts to be greater than 0 , right?

viral bolt Oct 20, 2022, 2:57 AM

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You can use discount_amounts to determine a discount has been applied to the line item

tawdry granite Oct 20, 2022, 2:59 AM

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However, the discount amount is already within the invoiceLineItem.amount of the invoice item. The discount_amounts[0].amount will be 0. This is not an issue, right?

viral bolt Oct 20, 2022, 3:03 AM

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One way is to check that discount_amounts is not an empty array. If it's not empty, then a discount is applied

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The amount on line items for unused and remaining is usually 0

tawdry granite Oct 20, 2022, 3:04 AM

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Great, that is very helpful 🎉. Thank you

viral bolt Oct 20, 2022, 3:04 AM

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No problem! Happy to help 😄

tawdry granite Oct 20, 2022, 3:04 AM

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Now for a bit more complex question on the same topic 😄

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When the subscription has a one-time coupon applied, the behavior will be different.

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stripe invoices upcoming \
    --customer=cus_MbrCNS72FGY29A \
    --subscription=sub_1Lu94iC8JGuaUdU6hAI8xgD2 \
    --subscription-proration-behavior="always_invoice" \
    --data "subscription_items[0][id]"=si_MdPuhiFYPls20p \
    --data "subscription_items[0][quantity]"=20 \
    --data "subscription_items[0][price]"=price_1K7BEwC8JGuaUdU6DUNs8JTW

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We can see
"Unused time on 10 × Standard (with 40.0% off) after 20 Oct 2022"
"Remaining time on 20 × Standard after 20 Oct 2022"

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So one description has the discount, and the other does not.

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In this scenario, what we discussed earlier would be false

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Both invoice items will not have any element in discount_amounts

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How do you suggest we handle this case? 👼

viral bolt Oct 20, 2022, 3:26 AM

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I took a look at sub_1Lu94iC8JGuaUdU6hAI8xgD2 and discount wasn't applied to the first invoice

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That's why it doesn't have discount_amounts

tawdry granite Oct 20, 2022, 3:27 AM

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first invoice means the first line item in the upcoming invoice, or the subscription's first invoice?

viral bolt Oct 20, 2022, 3:28 AM

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Sorry, my bad

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I read it wrongly

tawdry granite Oct 20, 2022, 3:29 AM

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No worries

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Thank you for taking your time

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I'll wait in this thread until you have good news. I have a way in my mind to handle this case. I'm trying to see if you will have a better one 👼

viral bolt Oct 20, 2022, 3:35 AM

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Since the discount has been used up (removed from the subscription), no discount would be used to calculate the discounted line items. Therefore, discount_amounts is empty

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There's no good way to use upcoming invoice API to determine whether a past invoice line item has a discount applied

tawdry granite Oct 20, 2022, 3:37 AM

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Yeah, true. I agree

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How about using other APIs as well?

viral bolt Oct 20, 2022, 3:42 AM

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It's not possible to get upcoming invoice from other API

tawdry granite Oct 20, 2022, 3:44 AM

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So the goal is to identify the invoice item "Unused time on 10 × Standard (with 40.0% off) after 20 Oct 2022".

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This is what I am thinking

viral bolt Oct 20, 2022, 3:45 AM

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I'm afraid this scenario won't be possible via Stripe API. One possible way is to keep track of the price_ in the last invoice has promotion applied yourself

tawdry granite Oct 20, 2022, 3:47 AM

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viral bolt I'm afraid this scenario won't be possible via Stripe API. One possible way is t...

This was the idea I had as well. We get the latest invoice and see if that one has a discount applied, and the upcoming invoice request time is within that invoice period

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And if the invoice items in upcoming invoice has no elements in discount_amounts we consider the invoice item where amount < 0 will be "Unused time on 10 × Standard (with 40.0% off) after 20 Oct 2022"

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Would this logic be okay?

viral bolt Oct 20, 2022, 3:55 AM

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That sounds good

tawdry granite Oct 20, 2022, 3:55 AM

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Cool, thank you so much for your time @viral bolt

viral bolt Oct 20, 2022, 3:56 AM

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No problem! Happy to help 😄

tawdry granite Oct 20, 2022, 3:56 AM

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That is all for now

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Have a nice day 🥂

viral bolt Oct 20, 2022, 3:56 AM

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Have a nice day to you as well 😁

#Eranga