Retrieves the collection of CartItem resources.

curl -X GET "/api/carts/{cartId}/cart_items" \
  -H "apikey: $MEDIALISTER_API_KEY"

{
  "hydra:totalItems": 0,
  "hydra:search": {
    "@type": "string",
    "hydra:template": "string",
    "hydra:variableRepresentation": "string",
    "hydra:mapping": [
      {
        "@type": "string",
        "variable": "string",
        "property": "string",
        "required": true
      }
    ]
  },
  "hydra:view": {
    "@id": "string",
    "@type": "string",
    "hydra:first": "string",
    "hydra:last": "string",
    "hydra:previous": "string",
    "hydra:next": "string"
  },
  "hydra:member": [
    {
      "@context": "string",
      "@id": "string",
      "@type": "string",
      "product": {
        "@context": "string",
        "@id": "string",
        "@type": "string",
        "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
        "formatType": "/api/format_types/b64ed0ca-1a05-4898-9a52-765fed38bc5c",
        "mediaProject": "/api/media_projects/b64ed0ca-1a05-4898-9a52-765fed38bc5c",
        "price": 100.1,
        "desiredPrice": "string",
        "urlExamples": [
          "string"
        ],
        "currency": "/api/currencies/b64ed0ca-1a05-4898-9a52-765fed38bc5c",
        "listed": false,
        "byRequest": false,
        "turnAroundTime": 0,
        "notificationsCount": 0,
        "createdAt": "2026-01-15T09:30:00Z",
        "updatedAt": "2026-01-15T09:30:00Z",
        "numericPrice": 0,
        "visible": true,
        "createdAtTimestamp": 0,
        "updatedAtTimestamp": 0,
        "status": 0
      },
      "price": "string",
      "currency": {
        "@context": "string",
        "@id": "string",
        "@type": "string",
        "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
        "name": "string",
        "symbol": "string",
        "type": "fiat",
        "decimals": 2
      },
      "cart": "https://example.com/",
      "flatFee": "string",
      "minFee": "string",
      "feePercent": "string",
      "campaign": {
        "@context": "string",
        "@id": "string",
        "@type": "string",
        "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
        "name": "Campaign Name",
        "goal": "My Goal",
        "goalDetails": "seo-in-new-articles",
        "domain": "string",
        "budget": 0,
        "publishingPeriod": 0,
        "regions": [
          "dXJuOm1ieHBsYzpSRUk",
          "dXJuOm1ieHBsYzpSRUd"
        ],
        "notificationsCount": 0,
        "createdAt": "2026-01-15T09:30:00Z",
        "updatedAt": "2026-01-15T09:30:00Z"
      },
      "excluded": false,
      "cartItemExtras": [
        {
          "@context": "string",
          "@id": "string",
          "@type": "string",
          "extra": {
            "@context": "string",
            "@id": "string",
            "@type": "string",
            "description": "string",
            "conditions": {},
            "name": "string",
            "currency": {},
            "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
            "createdAt": "2026-01-15T09:30:00Z",
            "updatedAt": "2026-01-15T09:30:00Z"
          },
          "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
          "createdAt": "2026-01-15T09:30:00Z",
          "updatedAt": "2026-01-15T09:30:00Z",
          "price": {}
        }
      ],
      "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
      "createdAt": "2026-01-15T09:30:00Z",
      "updatedAt": "2026-01-15T09:30:00Z"
    }
  ]
}