Files
kan/packages/stripe/src/index.ts
2025-11-25 23:29:04 +00:00

84 lines
2.1 KiB
TypeScript

import { Stripe } from "stripe";
export const name = "stripe";
const stripeSecretKey = process.env.STRIPE_SECRET_KEY;
const createStripeClient = () => {
if (!stripeSecretKey) {
throw new Error("STRIPE_SECRET_KEY is not set");
}
const stripe = new Stripe(stripeSecretKey, {
apiVersion: "2025-08-27.basil",
});
return stripe;
};
export const updateSubscriptionSeats = async (
stripeSubscriptionId: string,
seatIncrement = 1,
): Promise<Stripe.Subscription> => {
const stripe = createStripeClient();
// First, retrieve the current subscription to get the subscription items
const subscription = await stripe.subscriptions.retrieve(
stripeSubscriptionId,
{
expand: ["items"],
},
);
if (!subscription.items.data.length) {
throw new Error(
`No subscription items found for subscription ${stripeSubscriptionId}`,
);
}
// Get the first subscription item
const subscriptionItem = subscription.items.data[0];
if (!subscriptionItem) {
throw new Error(
`No subscription item found for subscription ${stripeSubscriptionId}`,
);
}
const currentQuantity = subscriptionItem.quantity ?? 1;
const newQuantity = currentQuantity + seatIncrement;
// Ensure we don't go below 1 seat
if (newQuantity < 1) {
throw new Error(
`Cannot reduce seats below 1. Current: ${currentQuantity}, Requested change: ${seatIncrement}`,
);
}
// Update the subscription with the new quantity and immediate invoicing
const updatedSubscription = await stripe.subscriptions.update(
stripeSubscriptionId,
{
items: [
{
id: subscriptionItem.id,
quantity: newQuantity,
},
],
proration_behavior: "create_prorations",
},
);
return updatedSubscription;
};
export const getCancellationDetails = async (
stripeSubscriptionId: string,
): Promise<Stripe.Subscription.CancellationDetails | null> => {
const stripe = createStripeClient();
const stripeSubscription =
await stripe.subscriptions.retrieve(stripeSubscriptionId);
return stripeSubscription.cancellation_details ?? null;
};
export { createStripeClient };