c# - 无法使用 RestSharp 下载 pdf？

Question

我一直在努力下载使用restsharp在线托管的简单pdf。我已经研究了一个多小时的代码，得到的只是空对象结果。

使用 GET 在 POSTMAN 中轻松下载该文件，并且没有设置内容 header ，但仍然给出了什么？

下面是我一直在尝试的 noddy 沙箱测试:

[TestFixture]
public class Sandbox
{
    [Test]
    public void Test()
    {
        var uri = "https://www.nlm.nih.gov/mesh/2018/download/2018NewMeShHeadings.pdf";
        var client = new RestClient();
        var request = new RestRequest(uri, Method.GET);
        //request.AddHeader("Content-Type", "application/octet-stream");
        byte[] response = client.DownloadData(request);
        File.WriteAllBytes(@"C:\temp\1.pdf", response);
    }
}

更新: Return a Stream

        var baseUri = "https://www.nlm.nih.gov/mesh/2018/download/";
        var client = new RestClient(baseUri);
        var request = new RestRequest("2018NewMeShHeadings.pdf", Method.GET);
        request.AddHeader("Content-Type", "application/octet-stream");
        var tempFile = Path.GetTempFileName();
        var stream = File.Create(tempFile, 1024, FileOptions.DeleteOnClose);
        request.ResponseWriter = responseStream => responseStream.CopyTo(stream);
        var response = client.DownloadData(request);

该流现在已填充有下载的数据。

Answer 1

试试这个:

    var uri = "https://www.nlm.nih.gov/mesh/2018/download/";
    var client = new RestClient(uri);
    var request = new RestRequest("2018NewMeShHeadings.pdf", Method.GET);
    //request.AddHeader("Content-Type", "application/octet-stream");
    byte[] response = client.DownloadData(request);