与Google上的动作集成时，即使在对话框流控制台中也不会收到结果

Question

我正在开发使用日历API从日历中列出事件并解析响应以获取摘要的云函数 我在旁边的对话框流控制台上测试了我的功能，它给了我想要的结果，但是当我将其与google上的操作集成在一起时，它总是很重要的

/ -----阅读事件的说明

//----- read the description for event
function getKeyPoint (agent) {
      return fetchDescription(agent.parameters.date,agent.parameters.time).then(() => {
      agent.add("The key point for the requiered event is "+keyPoint);
    }).catch((err) => {
      console.log("Error here  "+err);

    agent.add(`There is no description  `);
        });
}

function fetchDescription (date,time){
appointmentDuration = 1;// Define the length of the appointment to be one hour.
dateTimeStart = convertParametersDate(date,time);
dateTimeEnd = addHours(dateTimeStart, appointmentDuration);

return new Promise((resolve,reject)=>{
  console.log("is listing now ");
calendar.events.list({
  auth: serviceAccountAuth,
  calendarId: calendarId,
  timeMin: dateTimeStart.toISOString(),
  timeMax: dateTimeEnd.toISOString()
},(err,calenderResponse)=>{
if (err || calenderResponse.data.items.length==0){
  reject(err || new Error('No event at  this time '));
}else {
var calenderResponseBody = calenderResponse.data;
var events=calenderResponseBody.items;
keyPoint  = events[0].description;
resolve(keyPoint);
}
});
});
}



the package : 
{
  "name": "DialogflowFirebaseWebhook",
  "description": "Firebase Webhook dependencies for a Dialogflow agent.",
  "version": "0.0.1",
  "private": true,
  "license": "Apache Version 2.0",
  "author": "Google Inc.",
  "engines": {
    "node": "6"
  },
  "scripts": {
    "lint": "semistandard --fix \"**/*.js\"",
    "start": "firebase deploy --only functions",
    "deploy": "firebase deploy --only functions"
  },
  "dependencies": {
    "firebase-functions": "^2.0.2",
    "firebase-admin": "^5.13.1",
    "googleapis": "^27.0.0",
    "actions-on-google": "2.2.0",
    "dialogflow-fulfillment": "^0.4.1"
  }
}