webhook-rest.ts

const handleInvoicePaymentFailed = async (data: Stripe.Event.Data.Object) => {
  const invoice = data as Stripe.Invoice;
  const stripeSub = invoice.subscription;
  const subId = typeof stripeSub === 'string' ? stripeSub : stripeSub?.id;

  const subscription = await db.subscription.findFirst({
    where: {
      stripe_subscription_id: subId,
    },
  });

  if (!subscription) {
    console.log({
      message: `Received invoice payment failed event but there is no subscription ${subId} with us`,
    });

    return;
  }
  //notify user of invoice failed
  console.log({ message: 'Invoice payment failed' });
};

const handleCustomerSubscriptionDeleted = async (
  data: Stripe.Event.Data.Object
) => {
  const stripeSub = data as Stripe.Subscription;
  const subscription = await db.subscription.findFirst({
    where: {
      stripe_subscription_id: stripeSub.id,
    },
  });

  await db.subscription.update({
    where: { id: subscription!.id },
    data: {
      ends_at: add(new Date(), { days: 1 }),
      stripe_status: stripeSub.status,
    },
  });

  console.log({
    message: `Subscription deleted ${subscription!.stripe_subscription_id}>`,
  });
};