nadiya_code

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[uneven pebble]

Hi there!
Can you share the ID (req_xxx) of the failing API request?
https://support.stripe.com/questions/finding-the-id-for-an-api-request

[inland sand]

yes a minute

[uneven pebble]

You should be able to add a discount in each phase of the Subscription schedule
https://docs.stripe.com/api/subscription_schedules/update#update_subscription_schedule-phases-discounts

[inland sand]

req_cwBM1nhLkVjcg2

[inland sand]

i think i wrote similar code.
subscription schedule is already created.
now, i need to attach specific coupon to an existing subscription (for all its phases)

also, i'm retrieving the schedule from stripe, and using its phase
const schedule = await stripe.subscriptionSchedules.retrieve(subscription.schedule);

[uneven pebble]

You should remove application_fee_percent from the phase

Or set a valid decimal, you are sending empty value

[inland sand]

i'm not manually adding it.

[uneven pebble]

Ah your backend is sending it according to the request Id 🤔

[inland sand]

if (subscription.schedule) {
    const schedule = await stripe.subscriptionSchedules.retrieve(subscription.schedule);

    const updatedPhases = schedule.phases.map((phase) => {
        // Destructure all keys except `coupon`
        const { coupon, ...rest } = phase;

        // Return the phase with discounts applied
        return {
            ...rest,
            discounts: [{ coupon: couponId }],
        };
    });


    // Step 3: Apply coupon to all phases
    const updatedSchedule = await stripe.subscriptionSchedules.update(schedule.id, {
        phases: updatedPhases,
    });

    console.log(`✅ Applied coupon ${couponId} to ALL phases of scheduled subscription ${subscriptionId}`);
    return updatedSchedule;
}

do i need to santize all the input that have blank or null values from the stripe?
is it there better or simpler soultion to just update coupon to all the phases of subscription schedule?

[uneven pebble]

You need to omit for empty fields here:

    // Destructure all keys except `coupon`
    const { coupon, ...rest } = phase;

    // Return the phase with discounts applied
    return {
        ...rest,
        discounts: [{ coupon: couponId }],
    };

is it there better or simpler soultion to just update coupon to all the phases of subscription schedule?
No, You need to fetch all the Subscription schedule phases and update them one by one.

You should update your code, and remove blank fields

[inland sand]

i see, okay

[inland sand]

another question: do we need to pass entire 'not null' existing phases data attributes while updating?
or can we just update it with the key that we want (like a PATCH update)

[uneven pebble]

Yeah it's like a patch update, you pass null attribute only when you want to omit/delete a value of an attribute

otherwise, you can send only the fields that you want to update

[inland sand]

https://docs.stripe.com/billing/subscriptions/subscription-schedules#updating:~:text=You need to pass,response about past phases.

[uneven pebble]

Ah sorry, I knew about passing all phases, but not all attributes too.

Then yeah you should pass all phases and all attributes, but remove the blank fields

[inland sand]

hmm okay, let me try that then

[alpine fable]

👋 taking over for my colleague. Let me know if there's any follow-up Qs I can answer!