Download folder as ZIP in api v2?

Okay. I am sharing this code for people who needs to download dropbox folder as zip in C#. I can't find a solution in the web and I have to piece up my own code. Hope it helps.

private async Task Download(string foldername)
{
        string token = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
	var dbx = new DropboxClient(token);
	using (var response = await dbx.Files.DownloadZipAsync("/" + foldername))
	{
		Stream ms = await response.GetContentAsStreamAsync();
		Int16 bufferSize = 1024;
		byte[] buffer = new byte[bufferSize + 1];
		Response.Clear();
		Response.ContentType = "application/x-zip-compressed";
		Response.AddHeader("content-disposition", "attachment; filename=myfolder.zip");
		Response.BufferOutput = false;
		int count = ms.Read(buffer, 0, bufferSize);
		while (count > 0)
		{
			Response.OutputStream.Write(buffer, 0, count);
			count = ms.Read(buffer, 0, bufferSize);
		}
	}
}

//To call it, place the download function in a page_load of a aspx (example: download.aspx)
//Link example: http://domainname/download.aspx?folder=abc123  
//This link will directly download the folder as a zip file.

protected void Page_Load(object sender, EventArgs e)
{
     string dropbox_folder = Request.QueryString["folder"];
     if (dropbox_id == null)
        Response.Redirect("http://google.com");
     try
     {
        var DownloadTask = Task.Run(async () =>
        {
             await Download(dropbox_folder);
        });
        DownloadTask.Wait();
     }
     catch (Exception ex)
     {
         Response.Redirect("http://google.com");
     }
}