import CheckoutIntents from 'checkout-intents';

const client = new CheckoutIntents({
  apiKey: process.env['CHECKOUT_INTENTS_API_KEY'], // This is the default and can be omitted
});

const checkoutIntent = await client.checkoutIntents.addPayment('id', {
  paymentMethod: { stripeToken: 'tok_1RkrWWHGDlstla3f1Fc7ZrhH', type: 'stripe_token' },
});

console.log(checkoutIntent);

{
  "buyer": {
    "postalCode": "10001",
    "country": "US",
    "province": "NY",
    "city": "New York",
    "address1": "123 Main St",
    "phone": "1234567890",
    "email": "john.doe@example.com",
    "lastName": "Doe",
    "firstName": "John",
    "address2": "Apt 1"
  },
  "quantity": 1,
  "productUrl": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "state": "retrieving_offer",
  "discoverPromoCodes": true,
  "constraints": {
    "offerRetrievalEffort": "max",
    "maxShippingPrice": 500,
    "maxTotalPrice": 100000
  },
  "promoCodes": [
    "SAVE20"
  ],
  "variantSelections": [
    {
      "value": "Small, Red, XS, L, etc.",
      "label": "Size, Color, etc."
    }
  ]
}