使用C#获取S3存储桶中的最新文件

using Amazon.S3;
using Amazon.S3.Model;

AmazonS3Client s3Client = new AmazonS3Client(accessKey, secretKey, region);

ListObjectsRequest request = new ListObjectsRequest
{
    BucketName = bucketName
};

ListObjectsResponse response = await s3Client.ListObjectsAsync(request);

List<S3Object> objects = response.S3Objects;
objects.Sort((x, y) => DateTime.Compare(y.LastModified, x.LastModified));

S3Object latestObject = objects.FirstOrDefault();

GetPreSignedUrlRequest urlRequest = new GetPreSignedUrlRequest
{
    BucketName = bucketName,
    Key = latestObject.Key,
    Expires = DateTime.Now.AddMinutes(10) // 设置链接的有效期
};

string downloadUrl = s3Client.GetPreSignedURL(urlRequest);