如何使 Dialog Fulfillment Google Calendar 集成工作？答案

【问题标题】：How to make Dialog Fulfilment Google Calendar integration work?如何使 Dialog Fulfillment Google Calendar 集成工作？
【发布时间】：2020-02-27 09:31:15
【问题描述】：

我是 node.js 的新手，我正在尝试使用 Dialogflow 构建一个聊天机器人，它可以让您计划约会并将约会插入到 Google 日历中。无论我尝试什么，我似乎总是遇到同样的错误（没有请求意图的处理程序）。有没有人看到可能出了什么问题或者已经尝试过本教程并且可以正常工作？

我尝试过的事情：

更新了我在 package.json 中的依赖项
更正了时区（我住在比利时/欧洲）和 timeZoneOffset
已将结算帐号关联到 Google Cloud Platform 中的项目

这是我遵循的教程：

GoogleCalendar Github

This 是特定意图“安排约会”的屏幕截图。它会自动转到默认响应，但应该转到： Ok, let me see if we can fit you in. ${appointmentTimeString} is fine!. 此意图中有一个自定义实体：@AppointmentType 有 2 个选项： - 车辆登记 - 驾照

在意图屏幕截图中，您还看到时间给出了今天的日期（在本例中为 2020 年 2 月 28 日），而它应该给出所要求的约会日期（在本例中为 2020 年 3 月 10 日）。这可能会导致错误，但我不知道如何在内联编辑器中修复它。

我的 index.js 来自内联编辑器（日历 ID 和服务帐户数据是正确的，只是从这里取出）：

 'use strict';

 const functions = require('firebase-functions');
 const {google} = require('googleapis');
 const {WebhookClient} = require('dialogflow-fulfillment');
 // const nodemailer = require('nodemailer');
 // const xoauth2 = require('xoauth2');
 const axios = require('axios');
 
 // Enter your calendar ID below and service account JSON below
 const calendarId = "CALENDAR ID";
 const serviceAccount = {
  "type": "service_account",
  "project_id": "PROJECT ID",
  "private_key_id": "PRIVATE KEY ID",
  "private_key": "PRIVATE KEY",
  "client_email": "CLIENT EMAIL",
  "client_id": "CLIENT ID",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/XXXXXXXXXXXXXXX.iam.gserviceaccount.com"
}; // Starts with {"type": "service_account",...
 
 // Set up Google Calendar Service account credentials
 const serviceAccountAuth = new google.auth.JWT({
   email: serviceAccount.client_email,
   key: serviceAccount.private_key,
   scopes: 'https://www.googleapis.com/auth/calendar'
 });
 
 const calendar = google.calendar('v3');
 process.env.DEBUG = 'dialogflow:*'; // enables lib debugging statements
 
 const timeZone = 'Europe/Madrid';
 const timeZoneOffset = '+01:00';
 
 exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
   const agent = new WebhookClient({ request, response });
   const appointment_type = agent.parameters.AppointmentType;
   function makeAppointment (agent) {
     // Calculate appointment start and end datetimes (end = +1hr from start)
     const dateTimeStart = new Date(Date.parse(agent.parameters.date.split('T')[0] + 'T' + agent.parameters.time + timeZoneOffset));
     // const dateTimeStart = new Date(Date.parse(agent.parameters.date.split('T')[0] + 'T' + agent.parameters.time.split('T')[1].split('+')[0]));
     const dateTimeEnd = new Date(new Date(dateTimeStart).setHours(dateTimeStart.getHours() + 1));
     const appointmentTimeString = dateTimeStart.toLocaleString(
       'en-GB',
       { month: 'long', day: 'numeric', hour: 'numeric', timeZone: timeZone}
     );
 
     // Check the availibility of the time, and make an appointment if there is time on the calendar
     return createCalendarEvent(dateTimeStart, dateTimeEnd, appointment_type).then(() => {
       agent.add(`Ok, let me see if we can fit you in. ${appointmentTimeString} is fine!.`);
     }).catch(() => {
       agent.add(`I'm sorry, there are no slots available for ${appointmentTimeString}.`);
     });
   }
 
   let intentMap = new Map();
   intentMap.set('Schedule Appointment', makeAppointment);
   agent.handleRequest(intentMap);
 });
 
 function createCalendarEvent (dateTimeStart, dateTimeEnd, appointment_type) {
   return new Promise((resolve, reject) => {
     calendar.events.list({
       auth: serviceAccountAuth, // List events for time period
       calendarId: calendarId,
       timeMin: dateTimeStart.toISOString(),
       timeMax: dateTimeEnd.toISOString()
     }, (err, calendarResponse) => {
       // Check if there is a event already on the Calendar
       if (err || calendarResponse.data.items.length > 0) {
         reject(err || new Error('Requested time conflicts with another appointment'));
       } else {
         // Create event for the requested time period
         calendar.events.insert({ auth: serviceAccountAuth,
           calendarId: calendarId,
           resource: {summary: appointment_type +' Appointment', description: appointment_type,
             start: {dateTime: dateTimeStart},
             end: {dateTime: dateTimeEnd}}
         }, (err, event) => {
           err ? reject(err) : resolve(event);
         }
         );
       }
     });
   });
 }

我的 package.json：

{
  "name": "dialogflowFirebaseFulfillment",
  "description": "Dialogflow fulfillment for the bike shop sample",
  "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",
    "actions-on-google": "^2.2.0", 
    "googleapis": "^27.0.0",
    "dialogflow": "^0.6.0",
    "dialogflow-fulfillment": "^0.5.0",
    "nodemailer": "^4.4.2",
    "apiai": "^4.0.3",
    "xoauth2": "^1.2.0",
    "axios": "^0.19.2"
  }
}

这是我在 Google Cloud Platform 日志查看器中遇到的错误： Google Cloud Platform error

这是我在 Firebase 控制台中遇到的错误： Firebase error

【问题讨论】：

该错误表明您的 Intent 以及您触发它的方式存在问题。您能否更新您的问题以说明错误发生时对话的样子？显示您认为应该触发的 Intent 的屏幕截图也可能会有所帮助。
我认为您提供了所需的所有必要信息。我想到的一件事是确保您的 webhook 在 Dialogflow 控制台中启用。如果您一直滚动到意图的底部，您可以看到这一点。
谢谢大家的反应，还没用，但我继续努力

标签： node.js google-calendar-api dialogflow-es dialogflow-es-fulfillment

【解决方案1】：

您似乎在代理将您的请求路由到正确的函数之前读取参数。尝试像这样在函数内部删除函数 makeAppointment 上方的那一行..

   function makeAppointment (agent) {
     // Calculate appointment start and end datetimes (end = +1hr from start)
     const appointment_type = agent.parameters.AppointmentType;
     const dateTimeStart = new Date(Date.parse(agent.parameters.date.split('T')[0] + 'T' + agent.parameters.time + timeZoneOffset));

希望这对您有用，因为其他一切似乎都已正确设置。

【讨论】：

【解决方案2】：

代码看起来没问题。尝试使用默认的 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": "10"
  },
  "scripts": {
    "start": "firebase serve --only functions:dialogflowFirebaseFulfillment",
    "deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment"
  },
  "dependencies": {
    "actions-on-google": "^2.2.0",
    "firebase-admin": "^5.13.1",
    "firebase-functions": "^2.0.2",
    "dialogflow": "^0.6.0",
    "dialogflow-fulfillment": "^0.5.0"
  }
}

仅供参考，Google Cloud Function 中的节点 6 已折旧。否则，您可以在 Google Cloud Function 环境中测试 dialogflowFirebaseFulfillment 以获得根本原因。

【讨论】：