通过Google Calendar API插入事件如何在node.js中起作用？

问题描述

该示例显示在Google的开发人员文档页面https://developers.google.com/calendar/create-events#add_an_event

中

但是它没有给出有意义的例子

具体地说，

calendar.events.insert({
  auth: auth,calendarId: 'primary',resource: event,}

在上面的代码片段中

1. auth字段应该是什么值？
2. calendarId可以是电子邮件地址，例如[email protected]吗？
3. 如何导入日历对象？ （我的模块中有const { google } = require('googleapis');

谢谢

解决方法

您可能要考虑遵循完整的quickstart。它将引导您完成授权。

const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');

// If modifying these scopes,delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/calendar.readonly'];
// The file token.json stores the user's access and refresh tokens,and is
// created automatically when the authorization flow completes for the first
// time.
const TOKEN_PATH = 'token.json';

// Load client secrets from a local file.
fs.readFile('credentials.json',(err,content) => {
  if (err) return console.log('Error loading client secret file:',err);
  // Authorize a client with credentials,then call the Google Calendar API.
  authorize(JSON.parse(content),listEvents);
});

/**
 * Create an OAuth2 client with the given credentials,and then execute the
 * given callback function.
 * @param {Object} credentials The authorization client credentials.
 * @param {function} callback The callback to call with the authorized client.
 */
function authorize(credentials,callback) {
  const {client_secret,client_id,redirect_uris} = credentials.installed;
  const oAuth2Client = new google.auth.OAuth2(
      client_id,client_secret,redirect_uris[0]);

  // Check if we have previously stored a token.
  fs.readFile(TOKEN_PATH,token) => {
    if (err) return getAccessToken(oAuth2Client,callback);
    oAuth2Client.setCredentials(JSON.parse(token));
    callback(oAuth2Client);
  });
}

/**
 * Get and store new token after prompting for user authorization,and then
 * execute the given callback with the authorized OAuth2 client.
 * @param {google.auth.OAuth2} oAuth2Client The OAuth2 client to get token for.
 * @param {getEventsCallback} callback The callback for the authorized client.
 */
function getAccessToken(oAuth2Client,callback) {
  const authUrl = oAuth2Client.generateAuthUrl({
    access_type: 'offline',scope: SCOPES,});
  console.log('Authorize this app by visiting this url:',authUrl);
  const rl = readline.createInterface({
    input: process.stdin,output: process.stdout,});
  rl.question('Enter the code from that page here: ',(code) => {
    rl.close();
    oAuth2Client.getToken(code,token) => {
      if (err) return console.error('Error retrieving access token',err);
      oAuth2Client.setCredentials(token);
      // Store the token to disk for later program executions
      fs.writeFile(TOKEN_PATH,JSON.stringify(token),(err) => {
        if (err) return console.error(err);
        console.log('Token stored to',TOKEN_PATH);
      });
      callback(oAuth2Client);
    });
  });
}

/**
 * Lists the next 10 events on the user's primary calendar.
 * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
 */
function listEvents(auth) {
  const calendar = google.calendar({version: 'v3',auth});
  calendar.events.list({
    calendarId: 'primary',timeMin: (new Date()).toISOString(),maxResults: 10,singleEvents: true,orderBy: 'startTime',},res) => {
    if (err) return console.log('The API returned an error: ' + err);
    const events = res.data.items;
    if (events.length) {
      console.log('Upcoming 10 events:');
      events.map((event,i) => {
        const start = event.start.dateTime || event.start.date;
        console.log(`${start} - ${event.summary}`);
      });
    } else {
      console.log('No upcoming events found.');
    }
  });
}

主要

primary是当前经过身份验证的用户的主要日历。如果要使用其他日历，则需要日历ID。我建议做一个calendar.list，以便找出用户可以访问哪些日历，并以此方式获取日历ID。