从External Angular 6聊天窗口调用时，Dialogflow Webhook无法正常工作

我创建了一个Dialogflow聊天机器人 . 我在其中创建了一个webhook，将其与firebase集成 . 当用户从内部对话框聊天框（聊天窗口）向机器人提问时，聊天机器人和webhook正常工作 .

我想创建自定义聊天窗口 . 所以我使用Angular 6创建了一个 . 使用dialogflow聊天代理集成了我的Angular前端 . 对于这个Angular聊天窗口对话框，chatbot可以正常处理静态问题，但是当我查询使用webhook的意图时，我在日志中遇到以下错误：

TypeError：无法在新的WebhookClient上读取V2Agent.processRequest_（/user_code/node_modules/dialogflow-fulfillment/src/v2-agent.js:108:86）中未定义的属性'source'（/ user_code / node_modules / dialogflow-fulfillment / src / dialogflow-fulfillment.js：201：17）在cloudFunction的exports.dialogflowFirebaseFulfillment.functions.https.onRequest（/user_code/index.js:14:17）（/ user_code / node_modules / firebase-functions / lib / providers /） https.js:26:47）/var/tmp/worker/worker.js:714：7 at /var/tmp/worker/worker.js:697:11 at _combinedTickCallback（internal / process / next_tick.js：73 ：7）at process._tickDomainCallback（internal / process / next_tick.js：128：9）

下面是我的 index.js 文件（网络履行）

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);
});

package.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"
  }
}

我在Github和StackOverFlow上经历了很多文章，但没有一篇是有帮助的 .