stripe-js.ts

import { loadStripe, Stripe } from "@stripe/stripe-js";

let stripePromise: Promise<Stripe | null>;

if (process.env.NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY === undefined) {
  throw new Error("NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY is not set");
}

const getStripe = (): Promise<Stripe | null> => {
  if (!stripePromise) {
    stripePromise = loadStripe(process.env.NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY!);
  }

  return stripePromise;
};

export default getStripe;