{
  "request": {
    "method": "POST",
    "url": "https://api.breadpayments.com/carts",
    "headers": {
      "Authorization": "Bearer YOUR_LEGACY_TOKEN",
      "Content-Type": "application/json"
    },
    "body": {
      "currency": "USD",
      "items": [
        {
          "name": "Modern Sofa",
          "sku": "SOFA-001",
          "unitPrice": 89900,
          "quantity": 1,
          "imageUrl": "https://example.com/sofa.jpg"
        }
      ],
      "discounts": [
        {
          "description": "Spring sale",
          "amount": 5000
        }
      ],
      "shipping": {
        "typeId": "standard",
        "cost": 4900
      },
      "tax": 7400,
      "totalPrice": 96200
    }
  },
  "response": {
    "status": 201,
    "body": {
      "id": "cart_AbCdEfGhIj",
      "currency": "USD",
      "totalPrice": 96200,
      "createdAt": "2026-05-23T12:00:00Z"
    }
  }
}