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- """API 响应格式工具，保证成功响应拥有一致的 JSON 结构。"""
- from datetime import UTC, datetime
- from typing import Any
- from fastapi import Request
- def utc_server_time() -> str:
- """返回毫秒精度的UTC时间，供API包络统一使用。"""
- return datetime.now(UTC).isoformat(timespec="milliseconds").replace("+00:00", "Z")
- def success_response(request: Request, data: Any) -> dict[str, Any]:
- """包装业务数据，并附上当前请求的追踪ID和服务器时间。"""
- return {
- "success": True,
- "data": data,
- "meta": {
- "request_id": request.state.request_id,
- "server_time": utc_server_time(),
- },
- }
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