import DodoPayments from 'dodopayments';

const client = new DodoPayments({
  bearerToken: 'My Bearer Token',
});

const checkoutSessionResponse = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'product_id', quantity: 0 }],
});

console.log(checkoutSessionResponse.session_id);

{
  "checkout_url": "<string>",
  "session_id": "<string>"
}