curl --request POST \
  --url https://api.notifly.tech/v1/projects/{projectId}/statistics \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "start": "2025-06-01",
  "end": "2025-06-07",
  "tags": [
    "exampleTag"
  ]
}
'

[
  {
    "date": "2025-06-01",
    "resource_type": "campaign",
    "message": {
      "title": "여름 할인 이벤트",
      "body": "최대 50% 할인 혜택을 놓치지 마세요!"
    },
    "campaign_id": "xyz123",
    "campaign_name": "2025 여름 할인 캠페인",
    "variant_id": "xyz123",
    "variant_name": "할인율 50%",
    "tags": [
      "summer",
      "discount",
      "mobile"
    ],
    "user_journey_id": null,
    "user_journey_name": null,
    "user_journey_node_id": null,
    "user_journey_node_name": null,
    "channel": "push-notification",
    "message_sent": 1500,
    "message_failed": 23,
    "delivered": 1477,
    "click": 234,
    "conversion": [
      {
        "name": "구매완료",
        "type": "total_count_conversion",
        "count": 45
      },
      {
        "name": "구매완료",
        "type": "direct_count_conversion",
        "count": 45
      }
    ]
  },
  {
    "date": "2025-06-01",
    "resource_type": "user-journey",
    "message": {
      "subject": "온보딩 완료 축하",
      "content": "회원가입을 축하드립니다!"
    },
    "campaign_id": null,
    "campaign_name": null,
    "variant_id": null,
    "variant_name": null,
    "tags": [],
    "user_journey_id": "xyz123",
    "user_journey_name": "신규 회원 온보딩",
    "user_journey_node_id": "xyz123",
    "user_journey_node_name": "환영 메시지",
    "channel": "email",
    "message_sent": 892,
    "message_failed": 5,
    "delivered": 887,
    "click": 156,
    "conversion": [
      {
        "name": "프로필완성",
        "type": "total_count_conversion",
        "count": 78
      }
    ]
  }
]