使用Direct在中发布消息时获取“内部服务器错误”

Question

我已经设置了一个简单的机器人--在bot注册--我只是尝试设置基本的Direct连接。在我的单独应用程序(C#)中，我通过使用HttpClient和检索conversationId (通过反序列化响应)成功地启动了会话。

但是，我尝试向线程发送一条消息，并得到一个“内部服务器错误”，即错误代码500。附加的唯一消息是“发生了错误”。

using(var client =  new HttpClient())
{
client.BaseAddress = new Uri("https://directline.botframework.com/");
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Add("Authorization", $"BotConnector {token}");
client.DefaultRequestheaders.Add("Type", "Message");
var post_content = new StringContent("Adding to the convo", Encoding.UTF8, "application/json");
HttpResponseMessage response = new client.PostAsync($"api/conversations/{convo_id}/messages", post_content).Result;
log(response.ReadAsStringAsync().Result);
}

日志是输出到控制台的简单方法，而convo_id是从对站点的初始调用中获取的conversationId。

Answer 1

代码行：

var post_content = new StringContent("Adding to the convo", Encoding.UTF8, "application/json");

是问题的根源。查看所需消息的格式：PostMessage

它期待一个包含大量字段的JSON对象。我能够回复你的问题，改变了消息的内容，错误就消失了。

Message message = new Message(conversationId: convId, text: "Happy days");
string output = JsonConvert.SerializeObject(message);
var post_content = new StringContent(output,Encoding.UTF8,"application/json");

Answer 2

使用Microsoft.Bot.Connector.DirectLine NuGet包，我在DirectLine API方面取得了一些成功。

var uri = new Uri("https://directline.botframework.com");

DirectLineClientCredentials creds = new DirectLineClientCredentials(secret);

DirectLineClient client = new DirectLineClient(uri, creds);
Conversations convs = new Conversations(client);

string waterMark;

var conv = convs.NewConversation();
var set = convs.GetMessages(conv.ConversationId);
waterMark = set.Watermark;

Message message = new Message(conversationId: conv.ConversationId, text: "your text");
Console.WriteLine(message.Text);
convs.PostMessage(conv.ConversationId, message);

set = convs.GetMessages(conv.ConversationId, waterMark);
PrintResponse(set);
waterMark = set.Watermark;

将PrintResponse定义为：

private static void PrintResponse(MessageSet set)
{
  var q = from x in set.Messages
          where x.FromProperty == "<YOUR BOTS APP ID HERE>"
          select x.Text;

  foreach (var str in q.ToList())
   {
      Console.WriteLine(">> " +str);
   }


}