Method generate_presigned_upload_url

core/storage.py:516–531

生成S3预签名上传URL :param save_path: 文件保存路径 :param expires_in: URL过期时间（秒），默认15分钟 :return: 预签名PUT URL

(self, save_path: str, expires_in: int = 900)

                logger.info(f"清理 S3 分片数据时出错: {e}")

    async def generate_presigned_upload_url(self, save_path: str, expires_in: int = 900) -> Optional[str]:
        """
        生成S3预签名上传URL
        :param save_path: 文件保存路径
        :param expires_in: URL过期时间（秒），默认15分钟
        :return: 预签名PUT URL
        """
        async with self._client() as s3:
            return await s3.generate_presigned_url(
                "put_object",
                Params={
                    "Bucket": self.bucket_name,
                    "Key": save_path,
                },
                ExpiresIn=expires_in,
            )

    async def file_exists(self, save_path: str) -> bool:
        """