Use saved payment methodsBeta

const session = await stripe.checkout.sessions.create({
  line_items: [
    {
      price_data: {
        currency: 'usd',
        product_data: {
          name: 'T-shirt',
        },
        unit_amount: 2000,
      },
      quantity: 1,
    },
  ],
  mode: 'payment',
  ui_mode: 'custom',
  return_url: '{{RETURN_URL}}',
  customer: '{{CUSTOMER_ID}}',
});

import React from 'react';
import {useCustomCheckout} from '@stripe/react-stripe-js';

type Props = {
  selectedPaymentMethod: string | null;
  onSelectPaymentMethod: (paymentMethod: string) => void;
};
const PaymentMethods = (props: Props) => {
  const {savedPaymentMethods} = useCustomCheckout();

  const handleOptionChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    props.onSelectPaymentMethod(e.target.value);
  };

  return (
    <div>
      {savedPaymentMethods.map((pm) => (
        <label key={pm.id}>
          <input
            type="radio"
            value={pm.id}
            checked={props.selectedPaymentMethod === pm.id}
            onChange={handleOptionChange}
          />
          Card ending in {pm.card.last4}
        </label>
      ))}
    <div>
  );
};

export default PaymentMethods;

import React from 'react';
import {useCustomCheckout} from '@stripe/react-stripe-js';

type Props = {
  selectedPaymentMethod: string | null;
}
const PayButton = (props: Props) => {
  const {confirm} = useCustomCheckout();
  const [loading, setLoading] = React.useState(false);

  const handleClick = () => {
    setLoading(true);
    confirm({paymentMethod: props.selectedPaymentMethod}).then((result) => {
      if (result.error) {
        // Confirmation failed. Display the error message.
      }
      setLoading(false);
    })
  };

  return (
    <button disabled={loading} onClick={handleClick}>
      Pay
    </button>
  )
};

export default PayButton;