mackan-cehckout-session | Stripe Developers | Page 1

coral storm Oct 5, 2021, 1:56 PM

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pale swallow Oct 5, 2021, 2:10 PM

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Can you clarify that last sentence? You want to get the Checkout Session that a discount was used for?

hybrid maple Oct 5, 2021, 2:10 PM

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I want to get the customer-facing discount code that was used in a checkout session

pale swallow Oct 5, 2021, 2:20 PM

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If you expand total_details.breakdown you can get the a list of discounts in the with total_details.breakdown.discounts.discount property
https://stripe.com/docs/api/quotes/object#quote_object-total_details-breakdown-discounts-discount

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And then from there you can look up the discount object and expand itspromotion_code property to get the code https://stripe.com/docs/api/discounts/object#discount_object-promotion_code

hybrid maple Oct 5, 2021, 2:23 PM

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So I need to send a request to get the code?

pale swallow Oct 5, 2021, 2:24 PM

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Correct, you need to do additional API lookups, all of that is not present in just what the webhook sends

hybrid maple Oct 5, 2021, 2:25 PM

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Alright, thanks!

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Right, trying to expand it, I only get the issue StripeInvalidRequestError: This property cannot be expanded (promotion_code)

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I'm using the stripe-node package, getting the coupon ID from a request to get a checkout session;

Getting the session;

const session = await stripe.checkout.sessions.retrieve(sessionId, {
    expand: [ 'line_items', 'line_items.data.discounts', 'payment_intent', 'total_details.breakdown' ],
})

And getting the coupon;

const discounts: Stripe.Checkout.Session.TotalDetails.Breakdown.Discount[] = session.total_details?.breakdown?.discounts as Stripe.Checkout.Session.TotalDetails.Breakdown.Discount[]


const coupon = await stripe.coupons.retrieve(discounts[0].discount.coupon.id, {
    expand: ['promotion_code'],
})

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The second request works fine without the expand parameter

pale swallow Oct 5, 2021, 2:41 PM

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Whoops I now see that I linked you to a delete call. It looks the coupons.retrienve response does not have promotion_code at all

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Looking in to the proper call again, my apologies

hybrid maple Oct 5, 2021, 2:42 PM

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No worries!

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I am getting the api id of the promotion from my session retrieval though, is that something I'm able to leverage?

pale swallow Oct 5, 2021, 2:43 PM

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Exactly https://stripe.com/docs/api/promotion_codes/retrieve

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Try that out and let me know

hybrid maple Oct 5, 2021, 2:44 PM

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Will do!

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It worked and I see the code now! Thanks!

pale swallow Oct 5, 2021, 2:47 PM

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Great to hear!

hybrid maple Oct 5, 2021, 2:48 PM

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On another note, is there any way for customers to enter multiple promo codes on the hosted checkout page? Would be good to know if I need to account for that in my implementation

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I also looked at https://stripe.com/docs/api/discounts/object again, the example response has the code in the metadata field, is that something I can retreive from my session?

pale swallow Oct 5, 2021, 3:02 PM

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Checkout currently only supports one Coupon promo code at a time

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That would be the coupon's metadata so if you set that manually I think you should be able to see it

hybrid maple Oct 5, 2021, 3:07 PM

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Ah! I'll give it a try!

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It appears in the call to get the promo code, but not in the session discounts, any ideas?

#mackan-cehckout-session