程序员经验分享-hwhale

Microsoft Bot 在 WebChat 中显示不必要的重复消息？

2024-04-17

当用户第一次访问我的聊天室时，他们会收到欢迎消息，并立即被要求提供他们的名字。一旦用户输入他们的名字，就会出现欢迎消息，并再次显示输入名字的文本提示。只有在他们第二次输入名字后，机器人才会继续处理下一个有关姓氏的问题。

此外，当用户最终在第一次聊天中输入他们的名字和姓氏并再次返回同一个聊天时，仅当用户提供一些输入机器人发送欢迎返回消息时，才会显示欢迎消息和名字提示。

这是重现此问题所需的最少代码。 让restify = require('restify'); 让构建器 = require('botbuilder');

// Setup Restify Server
let server = restify.createServer();

let connector = new builder.ChatConnector({
    appId: process.env.MICROSOFT_APP_ID,
    appPassword: process.env.MICROSOFT_APP_PASSWORD
});

server.post('/api/messages', connector.listen());

let bot = new builder.UniversalBot(connector);

// Define default Dialog
bot.dialog('/', [
  function (session) {
    if (!session.userData.firstName) {
      // firstName used as a flag to assess whether the user is coming back
      // or new user - we can use it because the very first dialog is asking them
      // for their first name.
      session.send("Welcome!");
    } else {
      session.send("Welcome back %s!", session.userData.firstName);
    }

    session.beginDialog('mainConversationFlow');
  }
])

bot.dialog('mainConversationFlow', [
    function(session, args, next) {
      if (!session.userData.firstName)
        session.beginDialog('getFirstName');
      else 
        next();
    },
    function(session, args, next) {
      if(!session.userData.lastName) 
        session.beginDialog('getLastName');
      else
        next();
    }, 
    function(session, args, next) {
      session.endConversation('The End');
    }
])

bot.dialog('getFirstName', [
  function(session, args) {
    let msg = "What's your first name?";

    builder.Prompts.text(session, msg);
  },
  function(session, results) {
    session.userData.firstName = results.response.trim();
    session.endDialog();
  }
])

bot.dialog('getLastName', [
  function(session, args) {
    let msg = builder.Message.composePrompt(session,
      ["Hi %s, what's your last name?"], session.userData.firstName);

    builder.Prompts.text(session, msg);
  },
  function(session, results) {
    session.userData.lastName = results.response.trim();

    session.endDialog();
  }
])

bot.on('conversationUpdate', function (message) {
    if (message.membersAdded) {
        message.membersAdded.forEach(function (identity) {
            if (identity.id === message.address.bot.id) {
                bot.beginDialog(message.address, '/');
            }
        });
    }
})

server.listen(process.env.port || process.env.PORT || 3978, function () {
   console.log('%s listening to %s', server.name, server.url); 
})

首次运行应用程序时，应向用户显示欢迎消息并询问其名字。一旦他们输入名字，机器人就应该立即转到下一个关于姓氏的问题，并且在用户回答后机器人应该结束对话。

当用户输入他们的名字和姓氏并返回时，机器人应该只显示欢迎回来消息并结束对话。

这是我使用 BotFramework-WebChat 的客户端代码片段：

let directLineSecret = 'mysecret';
let directLineSpecUrl = 'https://docs.botframework.com/en-us/restapi/directline3/swagger.json';

BotChat.App({
  directLine: {secret: directLineSecret},
  user: { id: localStorage.getItem('email')},
  bot: { id: 'testbot' },
  resize: 'detect'
}, this.botChatContainer.nativeElement);

let directLineClient = rp(directLineSpecUrl)
  .then(function(spec) {
    return new Swagger({
      spec: JSON.parse(spec.trim()),
      usePromise: true
    });
  })
  .then(function(client) {
    return rp({
      url: 'https://directline.botframework.com/v3/directline/tokens/generate',
      method: 'POST',
      headers: {
        'Authorization': 'Bearer ' + directLineSecret
      },
      json: true
    }).then(function(response) {
      let token = response.token;
      client.clientAuthorizations.add('AuthorizationBotConnector', new Swagger.ApiKeyAuthorization('Authorization', 'Bearer ' + token, 'header'));
      return client;
    });
  })
  .catch(function(err) {
    console.error('Error initializing DirectLine client', err);
    throw err;
  });

这些屏幕截图是在 dev.botframework.com 测试窗口中拍摄的。然而，同样的行为也适用于我使用 WebChat 的网络应用程序。

你能帮我解决这个问题吗？

Update Logs:

2018-01-13 19:29:46.876 INFO - Container logs 2018-01-13T19:29:45.006255595Z
UserConversation message: , user: undefined 2018-01-13T19:29:45.006543896Z {"typ
e":"conversationUpdate","timestamp":"2018-01-13T19:29:44.4543348Z","membersAdded
":[{"id":"mybot@j4OUxKYkEpQ","name":"MyBot"}],"text":"","attachments":[],"entiti
es":[],"address":{"id":"C27bFaQ1Ohr","channelId":"webchat","user":{"id":"8f8399d
115774c86b83634bf7086f354"},"conversation":{"id":"8f8399d115774c86b83634bf7086f3
54"},"bot":{"id":"mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://webch
at.botframework.com/"},"source":"webchat","agent":"botbuilder","user":{"id":"8f8
399d115774c86b83634bf7086f354"}} 
2018-01-13T19:29:45.006562196Z ----------------------------  
2018-01-13T19:29:45.937402126Z Incoming message:
2018-01-13T19:29:45.937559026Z ----------------------------
2018-01-13T19:29:46.291227879Z Outgoing message: Welcome!
2018-01-13T19:29:46.291465679Z {"type":"message","agent":"botbuilder","source":"
webchat","address":{"id":"C27bFaQ1Ohr","channelId":"webchat","user":{"id":"8f839
9d115774c86b83634bf7086f354"},"conversation":{"id":"8f8399d115774c86b83634bf7086
f354"},"bot":{"id":"mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://web
chat.botframework.com/"},"text":"Welcome!"} 
2018-01-13T19:29:46.291479179Z ----------------------------  
2018-01-13T19:29:46.291708779Z Outgoing message:
What's your first name? 2018-01-13T19:29:46.291740980Z {"text":"What's your
first name?","inputHint":"expectingInput","type":"message","address":{"id":"C27b
FaQ1Ohr","channelId":"webchat","user":{"id":"8f8399d115774c86b83634bf7086f354"},
"conversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OU
xKYkEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"}}
2018-01-13T19:29:46.291759880Z  ----------------------------  
2018-01-13 19:29:56.876 INFO - Container logs 2018-01-13T19:29:53.471348251Z
UserConversation message: , user: undefined 2018-01-13T19:29:53.471657052Z {"typ
e":"conversationUpdate","timestamp":"2018-01-13T19:29:53.3233269Z","membersAdded
":[{"id":"AvfenKwcS1o","name":"You"}],"text":"","attachments":[],"entities":[],"
address":{"id":"DbpPwxf2m7T","channelId":"webchat","user":{"id":"8f8399d115774c8
6b83634bf7086f354"},"conversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bo
t":{"id":"mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botfr
amework.com/"},"source":"webchat","agent":"botbuilder","user":{"id":"8f8399d1157
74c86b83634bf7086f354"}} 
2018-01-13T19:29:53.471672552Z ----------------------------  
2018-01-13T19:29:53.515781796Z UserConversation
message: John, user: You 2018-01-13T19:29:53.515792596Z {"type":"message","times
tamp":"2018-01-13T19:29:53.1827153Z","textFormat":"plain","text":"John","entitie
s":[{"type":"ClientCapabilities","requiresBotState":true,"supportsTts":true,"sup
portsListening":true}],"textLocale":"en","sourceEvent":{"clientActivityId":"1515
871784086.6213104132628995.0"},"attachments":[],"address":{"id":"8f8399d115774c8
6b83634bf7086f354|0000002","channelId":"webchat","user":{"id":"AvfenKwcS1o","nam
e":"You"},"conversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"
mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botframework.co
m/"},"source":"webchat","agent":"botbuilder","user":{"id":"AvfenKwcS1o","name":"
You"}} 
2018-01-13T19:29:53.515801796Z ----------------------------
2018-01-13T19:29:53.545361425Z Incoming message: John
2018-01-13T19:29:53.545373525Z ----------------------------
2018-01-13T19:29:53.802571982Z Outgoing message: Welcome!
2018-01-13T19:29:53.802593382Z {"type":"message","agent":"botbuilder","source":"
webchat","textLocale":"en","address":{"id":"8f8399d115774c86b83634bf7086f354|000
0002","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"conversati
on":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKYkEpQ","n
ame":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"text":"Welcome!
"} 
2018-01-13T19:29:53.802600382Z  ----------------------------
2018-01-13T19:29:53.802602782Z Outgoing message: What's your first name?
2018-01-13T19:29:53.802604982Z {"text":"What's your first name?","inputHint":"ex
pectingInput","type":"message","address":{"id":"8f8399d115774c86b83634bf7086f354
|0000002","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"conver
sation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKYkEpQ
","name":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"textLocale"
:"en"} 
2018-01-13T19:29:53.802610082Z  ----------------------------  
2018-01-13 19:30:01.878 INFO - Container logs 2018-01-13T19:29:57.806548081Z
UserConversation message: John, user: You 2018-01-13T19:29:57.809735285Z {"type"
:"message","timestamp":"2018-01-13T19:29:57.6990081Z","textFormat":"plain","text
":"John","textLocale":"en","sourceEvent":{"clientActivityId":"1515871784086.6213
104132628995.2"},"attachments":[],"entities":[],"address":{"id":"8f8399d115774c8
6b83634bf7086f354|0000005","channelId":"webchat","user":{"id":"AvfenKwcS1o","nam
e":"You"},"conversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"
mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botframework.co
m/"},"source":"webchat","agent":"botbuilder","user":{"id":"AvfenKwcS1o","name":"
You"}} 
2018-01-13T19:29:57.809755085Z ----------------------------
2018-01-13T19:29:57.828015903Z Incoming message: John
2018-01-13T19:29:57.828028303Z ----------------------------
2018-01-13T19:29:58.122706697Z Outgoing message: Got response as: John
2018-01-13T19:29:58.122972998Z {"type":"message","agent":"botbuilder","source":"
webchat","textLocale":"en","address":{"id":"8f8399d115774c86b83634bf7086f354|000
0005","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"conversati
on":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKYkEpQ","n
ame":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"text":"Got
response as: John"} 
2018-01-13T19:29:58.122997998Z ----------------------------
2018-01-13T19:29:58.123366398Z Outgoing message: Hello John! What is your last
name? 2018-01-13T19:29:58.123377798Z {"text":"Hello John! What is your last name
?","inputHint":"expectingInput","type":"message","address":{"id":"8f8399d115774c
86b83634bf7086f354|0000005","channelId":"webchat","user":{"id":"AvfenKwcS1o","na
me":"You"},"conversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":
"mybot@j4OUxKYkEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botframework.c
om/"},"textLocale":"en"} 
2018-01-13T19:29:58.123395698Z ----------------------------  
2018-01-13T19:30:00.551811524Z UserConversation
message: Doe, user: You 2018-01-13T19:30:00.552098924Z {"type":"message","timest
amp":"2018-01-13T19:30:00.4252782Z","textFormat":"plain","text":"Doe","textLocal
e":"en","sourceEvent":{"clientActivityId":"1515871784086.6213104132628995.4"},"a
ttachments":[],"entities":[],"address":{"id":"8f8399d115774c86b83634bf7086f354|0
000008","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"conversa
tion":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKYkEpQ",
"name":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"source":"webc
hat","agent":"botbuilder","user":{"id":"AvfenKwcS1o","name":"You"}}
2018-01-13T19:30:00.552114924Z ----------------------------
2018-01-13T19:30:00.590356662Z Incoming message: Doe
2018-01-13T19:30:00.590371762Z ----------------------------
2018-01-13T19:30:00.857187129Z Outgoing message: Got last name as: Doe
2018-01-13T19:30:00.857206229Z {"type":"message","agent":"botbuilder","source":"
webchat","textLocale":"en","address":{"id":"8f8399d115774c86b83634bf7086f354|000
0008","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"conversati
on":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKYkEpQ","n
ame":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"text":"Got last
name as: Doe"} 
2018-01-13T19:30:00.857220329Z  ----------------------------
2018-01-13T19:30:00.857222929Z Outgoing message: End of "mainConversationFlow"
dialog. 2018-01-13T19:30:00.857225229Z {"type":"message","agent":"botbuilder","s
ource":"webchat","textLocale":"en","address":{"id":"8f8399d115774c86b83634bf7086
f354|0000008","channelId":"webchat","user":{"id":"AvfenKwcS1o","name":"You"},"co
nversation":{"id":"8f8399d115774c86b83634bf7086f354"},"bot":{"id":"mybot@j4OUxKY
kEpQ","name":"MyBot"},"serviceUrl":"https://webchat.botframework.com/"},"text":"
End of \"mainConversationFlow\" dialog."} 
2018-01-13T19:30:00.857230729Z ----------------------------

我用于日志的代码：

const logUserConversation = (event) => {
    console.log('UserConversation message: ' + event.text + ', user: ' + event.address.user.name);
    console.log(JSON.stringify(event));
    console.log('----------------------------');
};

const logIncomingMessage = function (session) {
    console.log('Incoming message: ' + session.message.text);
    console.log(JSON.stringify(session.user));
    console.log('----------------------------');
};

const logOutgoingMessage = function (event) {
    console.log('Outgoing message: ' + event.text);
    console.log(JSON.stringify(event));
    console.log('----------------------------');
};

bot.use({
    receive: function (event, next) {
        logUserConversation(event);
        next();
    },
    botbuilder: function (session, next) {
        logIncomingMessage(session);
        next();
    },
    send: function (event, next) {
        logOutgoingMessage(event);
        next();
    }
})

实际上，当机器人连接器第一次连接到机器人服务器时，机器人首先加入对话，所以conversationUpdate将为您的机器人触发事件，该事件不包含session.userData object.

一旦用户在机器人网络聊天中输入某些内容，何时会出现第二次conversationUpdate对于用户来说。这时，bot开始Dialog'\'在 - 的里面conversationUpdate会话中的事件包含session.userData目的。

您可以添加以下中间件来检测此问题：

bot.use({
    receive: function (event, next) {
        console.log(event)
        next();
    },
    send: function (event, next) {
        console.log(event)
        next();
    }
});

不幸的是，我找不到让机器人触发的方法conversationUpdate网络聊天初始化时为用户提供。

update

您可以利用网站上的webchat js sdk https://github.com/Microsoft/BotFramework-WebChat#easy-in-your-non-react-website-run-web-chat-inline and 反向渠道机制 https://learn.microsoft.com/en-us/bot-framework/nodejs/bot-builder-nodejs-backchannel达到你的要求。

网站客户端：

//定义一个用户

const user = {id:'userid',name:'username'};

const botConnection = new BotChat.DirectLine({
        domain: params['domain'],
        secret: '<secrect>',
        webSocket: params['webSocket'] && params['webSocket'] === 'true' // defaults to true
      });
botConnection .postActivity({ type: "event", from: user, name: "ConversationUpdate", value: "" }) .subscribe(id => console.log("Conversation updated"));
BotChat.App({
    botConnection: botConnection,
    bot: bot,
    user: user,
    resize: 'detect'
}, document.getElementById("BotChatGoesHere"));

机器人服务器：

bot.on('event',(event)=>{
  console.log(event)
  if(event.name==='ConversationUpdate'){
    bot.beginDialog(event.address, '/');
  }
})
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