如何在Google Calendar中使用PassportJS (提取日历事件)

const express = require('express');
const passport = require('passport');
const GoogleStrategy = require('passport-google-oauth20').Strategy;
const { google } = require('googleapis');

const app = express();

// 配置Passport策略
passport.use(new GoogleStrategy({
  clientID: 'YOUR_CLIENT_ID',
  clientSecret: 'YOUR_CLIENT_SECRET',
  callbackURL: 'http://localhost:3000/auth/google/callback',
}, (accessToken, refreshToken, profile, done) => {
  // 使用访问令牌访问Google Calendar API
  const calendar = google.calendar({ version: 'v3', auth: accessToken });
  
  // 提取日历事件
  calendar.events.list({
    calendarId: 'primary',
    timeMin: (new Date()).toISOString(),
    maxResults: 10,
    singleEvents: true,
    orderBy: 'startTime',
  }, (err, res) => {
    if (err) return done(err);
    
    const events = res.data.items;
    // 在这里处理提取到的日历事件
    // ...
    
    done(null, profile);
  });
}));

// 设置Passport中间件
app.use(passport.initialize());

// 设置路由，处理用户登录和授权
app.get('/auth/google', passport.authenticate('google', { scope: ['profile', 'email', 'https://www.googleapis.com/auth/calendar.readonly'] }));

app.get('/auth/google/callback', passport.authenticate('google', { failureRedirect: '/login' }), (req, res) => {
  // 用户授权成功后的处理逻辑
  // ...
  
  res.redirect('/dashboard');
});

// 启动应用程序
app.listen(3000, () => {
  console.log('App listening on port 3000');
});