curl --request GET \
  --url https://openapi.fcontext.com/api/market-data/calendar/finance \
  --header 'x-api-key: <api-key>'

{
  "calendar": {
    "date": "<string>",
    "list": [
      {
        "date": "<string>",
        "count": 123,
        "infos": [
          {
            "symbol": "<string>",
            "market": "<string>",
            "content": "<string>",
            "counterName": "<string>",
            "eventType": "<string>",
            "datetime": "<string>",
            "star": 123
          }
        ]
      }
    ],
    "nextDate": "<string>"
  }
}