我现在使用Microsoft Bot Builder .NET SDK通过Emulator接收附件 [英] I am using Microsoft Bot Builder .NET SDK for receiving an attachment through Emulator for now
问题描述
我正在为我的项目使用Microsoft的Bot builder SDK for .NET,我想从Emulator接收附件并继续进行流程.
I am using Bot builder SDK for .NET by Microsoft for my project and i want to receive an attachment from Emulator and proceed with the flow.
当我从模拟器附加任何文件时,我遇到问题,但我没有收到文件上传的内容,并且Content URL也是一些我无法继续运行的localhost URL.
I am getting issue when i attach any file from emulator i am not getting content of the file uploaded and Content URL is also some localhost URL which i am not able to proceed.
代码:
public virtual async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> result)
{
var message = await result;
var reply = context.MakeMessage();
}
var邮件中附件的值:
Value of attachment in var message:
我的问题是如何获取我上传的文件的内容和内容URL.
My question is how to get Content and Content URL of file which i have uploaded.
推荐答案
您不会获得内容. Yoy需要使用ContentUrl下载它.看看 core-ReceiveAttachment 示例了解如何去做.
You won't get the content. Yoy need to download it by using the ContentUrl. Take a look at the core-ReceiveAttachment sample to understand how to do it.
public virtual async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> argument)
{
var message = await argument;
if (message.Attachments != null && message.Attachments.Any())
{
var attachment = message.Attachments.First();
using (HttpClient httpClient = new HttpClient())
{
// Skype & MS Teams attachment URLs are secured by a JwtToken, so we need to pass the token from our bot.
if ((message.ChannelId.Equals("skype", StringComparison.InvariantCultureIgnoreCase) || message.ChannelId.Equals("msteams", StringComparison.InvariantCultureIgnoreCase))
&& new Uri(attachment.ContentUrl).Host.EndsWith("skype.com"))
{
var token = await new MicrosoftAppCredentials().GetTokenAsync();
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
}
var responseMessage = await httpClient.GetAsync(attachment.ContentUrl);
var contentLenghtBytes = responseMessage.Content.Headers.ContentLength;
await context.PostAsync($"Attachment of {attachment.ContentType} type and size of {contentLenghtBytes} bytes received.");
}
}
else
{
await context.PostAsync("Hi there! I'm a bot created to show you how I can receive message attachments, but no attachment was sent to me. Please, try again sending a new message including an attachment.");
}
context.Wait(this.MessageReceivedAsync);
}
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