从外部聊天窗口调用Dialogflow Webhook时不工作

我想创建我的自定义聊天窗口。所以我用Angular 6创建了一个。将Angular前端与dialogflow聊天代理集成。对于这个有角度的聊天窗口,dialogflow chatbot对于静态问题工作得很好,但是当我查询使用webhook的意图时,我在日志中得到以下错误:

TypeError:无法读取未定义的属性“source” 在V2Agent.processRequest处(/user\u code/node\u modules/dialogflow fulfillment/src/v2 agent.js:108:86) 在新的WebhookClient(/user\u code/node\u modules/dialogflow fulfillment/src/dialogflow fulfillment.js:201:17) 在exports.dialogflowFirebaseFulfillment.functions.https.onRequest(/user\u code/index.js:14:17) 在cloudFunction(/user\u code/node\u modules/firebase functions/lib/providers/https.js:26:47) 在/var/tmp/worker/worker.js:714:7 在合并的tickCallback(internal/process/next-tick.js:73:7) 在进程中。\u tickDomainCallback(internal/process/next\u tick.js:128:9)

下面是我的 文件(web实现)

const functions = require('firebase-functions');
const {WebhookClient} = require('dialogflow-fulfillment');

// initialise DB connection
const admin = require('firebase-admin');
admin.initializeApp({
  credential: admin.credential.applicationDefault(),
  databaseURL: 'XXXXXXXXXXXX',
});

process.env.DEBUG = 'dialogflow:debug';

exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
  const agent = new WebhookClient({ request, response });
  console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
  console.log('Dialogflow Request body: ' + JSON.stringify(request.body));

  function handleAge(agent) {
    const name = agent.parameters.Name;

    agent.add('Thank you... ' + name);

    return admin.database().ref('ageInfo').once("value").then((snapshot) => {
      var averageAge = snapshot.child(name).val().Age;
      agent.add(`Our recorded age is ` + averageAge);
    });
  }

  // Run the proper function handler based on the matched Dialogflow intent name
  let intentMap = new Map();
  intentMap.set('AskAge', handleAge);
  agent.handleRequest(intentMap);
});

包.json

{
  "name": "dialogflowFirebaseFulfillment",
  "description": "This is the default fulfillment for a Dialogflow agents using Cloud Functions for Firebase",
  "version": "0.0.1",
  "private": true,
  "license": "Apache Version 2.0",
  "author": "Google Inc.",
  "engines": {
    "node": "~6.0"
  },
  "scripts": {
    "start": "firebase serve --only functions:dialogflowFirebaseFulfillment",
    "deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment"
  },
  "dependencies": {
    "firebase-admin": "^4.2.1",
    "firebase-functions": "^0.5.7",
    "dialogflow": "^0.1.0",
    "dialogflow-fulfillment": "0.3.0-beta.3",
    "actions-on-google": "2.0.0-alpha.4"
  }
}

我读了那么多关于Github和StackOverFlow的文章,但没有一篇是有用的。