[
  {
    "id": "card001",
    "title": "card 1 title",
    "sizes": ["sm", "md", "gt"],
    "basePrice": 200,
    "pages": [
      {
        "title": "Front Cover",
        "templateId": "template001"
      },
      {
        "title": "Inside Left",
        "templateId": "template002"
      },
      {
        "title": "Inside Right",
        "templateId": "template003"
      },
      {
        "title": "Back Cover",
        "templateId": "template004"
      }
    ]
  },
  {
    "id": "card002",
    "title": "card 2 title",
    "sizes": ["md"],
    "basePrice": 200,
    "pages": [
      {
        "title": "Front Cover",
        "templateId": "template005"
      },
      {
        "title": "Inside Left",
        "templateId": "template002"
      },
      {
        "title": "Inside Right",
        "templateId": "template003"
      },
      {
        "title": "Back Cover",
        "templateId": "template004"
      }
    ]
  },
  {
    "id": "card003",
    "title": "card 3 title",
    "sizes": ["md", "lg"],
    "basePrice": 200,
    "pages": [
      {
        "title": "Front Cover",
        "templateId": "template006"
      },
      {
        "title": "Inside Top",
        "templateId": "template007"
      },
      {
        "title": "Inside Bottom",
        "templateId": "template007"
      },
      {
        "title": "Back Cover",
        "templateId": "template008"
      }
    ]
  }
]