如何将HttpResponse StreamContent转换为zip文件？

using System.IO.Compression;
using System.Net.Http;

StreamContent responseContent = response.Content as StreamContent;

string tempFilePath = Path.GetTempFileName();

using (Stream stream = await responseContent.ReadAsStreamAsync())
{
    using (FileStream fileStream = new FileStream(tempFilePath, FileMode.Create))
    {
        await stream.CopyToAsync(fileStream);
    }
}

ZipFile.ExtractToDirectory(tempFilePath, targetDirectory);

File.Delete(tempFilePath);