Retrieves the details of a previously created cart. Use the unique cart ID that was returned from your previous request, and Bread will return the corresponding cart information. The same information is returned when creating a cart.

GET api.getbread.com/carts/:cartId
curl -u <api-key>:<secret-key> https://api.getbread.com/carts/b6c8caa2-cfcf-418b-ae72-88ee14e5a190
{
  "id": "34hf9384h-938h4f983-9384h9f384",
  "createdBy": "Merchant API",
  "merchantId": "04j034f-34jf349f-3049jf0-3049jf0394f",
  "url": "https://checkout.getbread.com/checkout/45gh847g",
  "expiration": "2017-01-30",
  "options": { ... } // options saved to cart, defined above
}