get-latlng
Convert latitude and longitude coordinates into detailed location information using this tool, ideal for pinpointing precise addresses or geographic data.
Instructions
根据经纬度获取详细位置信息
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| lat | Yes | ||
| lng | Yes |
Implementation Reference
- src/mcp_meituan_ip/server.py:97-131 (handler)Core handler function that executes the get-latlng tool logic: queries Meituan API with lat/lng and returns structured CityDetailData.
def get_latlng(lat: str, lng: str) -> CityDetailData: api_url = f'https://apimobile.meituan.com/group/v1/city/latlng/{lat},{lng}' params = { "tag": 0 } response = requests.get(api_url, params=params) response.raise_for_status() # 检查请求是否成功（4xx/5xx 会抛出异常） data = response.json()["data"] # 解析 JSON # 构建 CityDetailData 对象 location = CityDetailData( detail= data["detail"], parentArea= data["parentArea"], cityPinyin= data["cityPinyin"], lng= data["lng"], isForeign= data["isForeign"], dpCityId= data["dpCityId"], country= data["country"], isOpen= data["isOpen"], city= data["city"], id= data["id"], openCityName= data["openCityName"], originCityID= data["originCityID"], area= data["area"], areaName= data["areaName"], province= data["province"], district= data["district"], lat= data["lat"] ) return location - src/mcp_meituan_ip/server.py:240-251 (registration)Registers the get-latlng tool with MCP server including name, description, and JSON input schema.
types.Tool( name="get-latlng", description="根据经纬度获取详细位置信息", inputSchema={ "type": "object", "properties": { "lat": {"type": "string"}, "lng": {"type": "string"}, }, "required": ["lat", "lng"], }, ) - src/mcp_meituan_ip/server.py:274-284 (handler)Tool dispatch handler case that validates arguments, calls get_latlng function, and formats response.
case 'get-latlng': if not all( k in arguments for k in ["lat", "lng"] ): raise ValueError("Missing required arguments") result = get_latlng(lat= arguments['lat'], lng= arguments['lng']) # 转换为字典后序列化 location_dict = asdict(result) # Notify clients that resources have changed await server.request_context.session.send_resource_list_changed() - src/mcp_meituan_ip/server.py:40-58 (schema)Pydantic-style dataclass defining the output schema/structure for get-latlng response.
class CityDetailData: detail: str parentArea: int cityPinyin: str lng: float isForeign: bool dpCityId: int country: str isOpen: bool city: str id: int openCityName: str originCityID: int area: int areaName: str province: str district: str lat: float