get_meta_info_csv
Extract statistical metadata from Japan's e-Stat portal as CSV files using official data identifiers to organize and analyze government statistics.
Instructions
統計表のメタ情報をCSVで取得する.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| stats_data_id | Yes |
Implementation Reference
- e_stats_mcp/tools/stats.py:373-384 (handler)The main async handler function that executes the tool logic: fetches meta information for a given stats_data_id from the e-Stat API 'getSimpleMetaInfo' endpoint in CSV format using the shared _make_request helper.async def get_meta_info_csv(stats_data_id: str) -> str: """統計表のメタ情報をCSVで取得する.""" params = { "lang": "J", "statsDataId": stats_data_id, } response = await _make_request( "getSimpleMetaInfo", params, format="csv", ) return cast(str, response)
- e_stats_mcp/main.py:49-49 (registration)MCP tool registration using FastMCP's mcp.tool() decorator, which likely generates schema from type hints.mcp.tool()(get_meta_info_csv)
- e_stats_mcp/tools/stats.py:17-66 (helper)Shared helper function _make_request used by the handler to perform the actual HTTP request to the e-Stat API with proper parameters and CSV format handling.async def _make_request( endpoint: str, params: dict | None = None, *, method: str = "GET", format: str = "json", data: dict | None = None, ) -> dict[str, Any] | str: """e-Stat APIへのリクエストを実行する. Args: endpoint: APIエンドポイント（例: \"json/getStatsList\"） params: クエリパラメータ method: HTTPメソッド（GET/POST） format: レスポンス形式（\"json\" または \"csv\"） data: POST時のフォームデータ Returns: JSONの場合はdict、CSVの場合は文字列 Raises: ValueError: APIキーが設定されていない場合 httpx.HTTPError: API通信エラー """ settings = get_settings() if not settings.E_STAT_APP_ID: raise ValueError( "E_STAT_APP_ID環境変数が設定されていません。" "https://www.e-stat.go.jp/api/ からアプリケーションIDを取得してください。" ) url = f"{E_STAT_API_BASE}/{endpoint}" request_params = {"appId": settings.E_STAT_APP_ID, **(params or {})} http_method = method.upper() async with httpx.AsyncClient() as client: if http_method == "POST": response = await client.post( url, params=request_params, data=data, timeout=DEFAULT_TIMEOUT ) else: response = await client.get( url, params=request_params, timeout=DEFAULT_TIMEOUT ) response.raise_for_status() if format == "csv": return response.text return response.json()