从网络服务向机器人发送消息

时间:2018-06-26 10:19:12

标签: c# botframework

我正在从.NET机器人启动一个网页。该页面与我们的后端系统之一的用户进行交互。互动结束后,我需要向机器人发送状态更新消息-它位于上下文中。请等待该消息。

该机器人当前正在使用Facebook频道,并通过Facebook Url按钮启动页面,但最终它将需要跨多个渠道工作。

从网站上,我可以轻松地向用户发送消息,但是尽管花了很多时间进行搜索和尝试各种机制,但我仍未找到向机器人发送消息的方法。

基于https://docs.botframework.com/en-us/csharp/builder/sdkreference/d1/df2/_conversation_reference_ex_8cs_source.html的最新尝试,(cr已缓存对话详细信息):

string MicrosoftAppId = ConfigurationManager.AppSettings["MicrosoftAppId"];
            string MicrosoftAppPassword = ConfigurationManager.AppSettings["MicrosoftAppPassword"];

            var account = new MicrosoftAppCredentials(MicrosoftAppId, MicrosoftAppPassword);
            MicrosoftAppCredentials.TrustServiceUrl(cr.serviceUrl);

            var connector = new ConnectorClient(new Uri(cr.serviceUrl), account);

            Activity activity = new Activity
            {
                Type = ActivityTypes.Message,
                Id = Guid.NewGuid().ToString(),
                Recipient = new ChannelAccount
                {
                    Id = cr.bot.id,
                    Name = cr.bot.name
                },
                ChannelId = cr.channelId,
                ServiceUrl = cr.serviceUrl,
                Conversation = new ConversationAccount
                {
                    Id = cr.conversation.id,
                    IsGroup = false,
                    Name = null
                },
                From = new ChannelAccount
                {
                    Id = cr.bot.id,
                    Name = cr.bot.name
                },
                Text = "Test send message to bot from web service"
            };

            try
            {
                await connector.Conversations.SendToConversationAsync(activity);
            }
            catch (Exception ex)
            {
                var s = ex.Message;
            }

但是似乎没有“发自/收件人”的组合发送到bot。

我确定我缺少简单的东西,你们可以告诉我它是什么!

1 个答案:

答案 0 :(得分:3)

这里是从另一个应用程序向机器人发送消息的示例。在这种情况下,我是通过Web API进行此操作的,Web API是一个代理,可拦截来自用户的消息并将其发送给机器人。这段代码中没有包括如何构造活动,但是看起来您已经将该部分排序了。请注意,在此辅助应用程序中,我使用的是Bot.Builder,因此我可以使用活动对象和其他功能。

//get a token (See below)
var token = GetToken();

//set the service url where you want this activity to be replied to
activity.ServiceUrl = "http://localhost:4643/api/return";

//convert an activity to json to send to bot
var jsonActivityAltered = JsonConvert.SerializeObject(activity);

//send a Web Request to the bot
using (var client = new WebClient())
{
    //add your headers
    client.Headers.Add("Content-Type", "application/json");
    client.Headers.Add("Authorization", $"Bearer {token}");

    try
    {
        //set where to to send the request {Your Bots Endpoint}
        var btmResponse = client.UploadString("http://localhost:3971/api/messages", jsonActivityAltered);
    }
    catch (Exception e)
    {
        Console.WriteLine(e);
        throw;
    }
}

获取令牌:

private static string GetToken()
{
    string token;
    using (var client = new WebClient())
    {
        var values = new NameValueCollection();
        values["grant_type"] = "client_credentials";
        values["client_id"] = "{MS APP ID}";
        values["client_secret"] = "{MS APP SECRET}";
        values["scope"] = "{MS APP ID}/.default";

        var response =
            client.UploadValues("https://login.microsoftonline.com/botframework.com/oauth2/v2.0/token", values);

        var responseString = Encoding.Default.GetString(response);
        var result = JsonConvert.DeserializeObject<ResponseObject>(responseString);
        token = result.access_token;
    }

    return token;
}

响应对象类:

public class ResponseObject
{
    public string token_type { get; set; }
    public int expires_in { get; set; }
    public int ext_expires_in { get; set; }
    public string access_token { get; set; }
}