如何使用PutObjectAsync在dotnet SDK中上传base64 pdf到S3

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

var accessKey = "YourAccessKey";
var secretKey = "YourSecretKey";
var region = RegionEndpoint.YourRegion; // 例如：RegionEndpoint.USWest2

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

var base64Pdf = "YourBase64PdfString";
var pdfBytes = Convert.FromBase64String(base64Pdf);

var bucketName = "YourBucketName";
var objectKey = "YourObjectKey";
var contentType = "application/pdf";

var request = new PutObjectRequest
{
    BucketName = bucketName,
    Key = objectKey,
    ContentType = contentType,
    InputStream = new MemoryStream(pdfBytes)
};

var response = await s3Client.PutObjectAsync(request);