无法使用 sendgrid api 发送附件

Question

我有一个 byte[]，它是我的 ASP.NET Core 2.1 应用程序中下载的 pdf 文件。

我正在尝试将此作为附件附加到 sendgrid 电子邮件中。

public async Task SendEmail(byte[] Attachment = null)
{
    var client = new SendGridClient(apiKey);

    var msg = new SendGridMessage();

    // I also set the To, Subject, body etc etc

    msg.AddAttachment("test.pdf",Convert.ToBase64String(Attachment) ,"application/pdf","inline");
    var response = await client.SendEmailAsync(msg);

}

我收到“BadReqest”状态代码。如果我删除 AddAttachment 行，则该消息被接受。

我做错了什么？

Answer 1

试试这样的：

 using (var stream = new MemoryStream(Attachment))
    {
        msg.AddAttachment("test.pdf", stream);
        var response = await client.SendEmailAsync(msg);
    }