C# 无法使用nodejs生成的签名url上载到s3

我有一个nodejs应用程序，它正在生成一个签名url，用于将文件上载到AWS S3。我想使用这个签名的url将文件从C#winforms应用程序上传到S3

在我的C#代码中，当我使用从nodejs服务器获得的签名url将文件上载到S3时，我得到以下错误：

The connection was forcibly closed by the remote host

但是如果我使用C#生成签名的url，文件就会成功上传。我尝试编码和解码我从nodejs得到的url，但没有成功。C#和nodejs服务器都在我的本地主机中工作，所以应该没有时差

由c#（工作）和NodeJ（不工作）生成的url示例：

生成签名url的nodejs代码：

// this signed url does not work
var params = { Bucket: bucket, Key: folder + "/" + filename, Expires: 3600 };
s3.getSignedUrl('getObject', params, callback);

// this signed url works
GetPreSignedUrlRequest request = new GetPreSignedUrlRequest
{
    BucketName = "mybucket",
    Key = "folder/" + _id + ".flv",
    Verb = HttpVerb.PUT,
    Expires = DateTime.Now.AddMinutes(5)
};

string url = null;
url = s3Client.GetPreSignedURL(request);

生成签名url的c代码：

// this signed url does not work
var params = { Bucket: bucket, Key: folder + "/" + filename, Expires: 3600 };
s3.getSignedUrl('getObject', params, callback);

// this signed url works
GetPreSignedUrlRequest request = new GetPreSignedUrlRequest
{
    BucketName = "mybucket",
    Key = "folder/" + _id + ".flv",
    Verb = HttpVerb.PUT,
    Expires = DateTime.Now.AddMinutes(5)
};

string url = null;
url = s3Client.GetPreSignedURL(request);

上传文件的C代码：

HttpWebRequest httpRequest = WebRequest.Create(url) as HttpWebRequest;
httpRequest.Method = "PUT";
using (Stream dataStream = httpRequest.GetRequestStream())
{
    byte[] buffer = new byte[8000];
    using (FileStream fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read))
    {
        int bytesRead = 0;
        while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) > 0)
        {
            dataStream.Write(buffer, 0, bytesRead);
        }
    }
}

HttpWebResponse response = httpRequest.GetResponse() as HttpWebResponse;

---

为什么我的nodejs生成的url不起作用，而我的C#生成的url起作用？如何让我的nodejs生成的签名url正常工作？

我解决了这个问题。问题出现在nodejs代码的这一行：

s3.getSignedUrl('getObject', params, callback);

应该是哪一个

s3.getSignedUrl('putObject', params, callback);

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