在这篇博文中,我们将逐步介绍通过使用 Google Calendar API 创建 Google 日历活动来自动创建 Google Meet 链接的过程。我们将使用服务帐号进行身份验证,以便可以代表您的 Google Workspace 网域中的用户创建活动。
在我们开始之前,请确保您具备以下条件:
您需要一些 Node.js 包来与 Google API 交互并处理 JWT 签名:
npm install google-auth-library jsonwebtoken node-fetch
接下来,我们将编写一个 Node.js 脚本来生成 JWT(JSON Web Token)来验证服务帐户。
const fs = require('fs'); const jwt = require('jsonwebtoken'); // Path to your service account JSON file const SERVICE_ACCOUNT_KEY_FILE = '/path/to/your/service-account-key.json'; // Scopes required for the API const SCOPES = ['https://www.googleapis.com/auth/calendar']; // Full calendar access const AUDIENCE = 'https://oauth2.googleapis.com/token'; async function generateJWT() { try { // Read and parse the service account credentials const serviceAccount = JSON.parse(fs.readFileSync(SERVICE_ACCOUNT_KEY_FILE, 'utf8')); // JWT payload const jwtPayload = { iss: serviceAccount.client_email, // Issuer: service account email sub: 'user@example.com', // Subject: email of the user whose calendar to access aud: AUDIENCE, // Audience: Google token URL scope: SCOPES.join(' '), // Scopes: space-separated list of scopes iat: Math.floor(Date.now() / 1000), // Issued at: current time in seconds exp: Math.floor(Date.now() / 1000) + 3600 // Expiration: 1 hour from now }; // Sign the JWT using the service account's private key const signedJwt = jwt.sign(jwtPayload, serviceAccount.private_key, { algorithm: 'RS256' }); console.log('Generated JWT:', signedJwt); } catch (error) { console.error('Error generating JWT:', error); } } generateJWT();
现在,使用 JWT 从 Google 的 OAuth 2.0 令牌端点获取 OAuth 2.0 令牌:
npm install google-auth-library jsonwebtoken node-fetch
使用访问令牌,我们现在可以创建带有 Google Meet 链接的 Google 日历活动。
const fs = require('fs'); const jwt = require('jsonwebtoken'); // Path to your service account JSON file const SERVICE_ACCOUNT_KEY_FILE = '/path/to/your/service-account-key.json'; // Scopes required for the API const SCOPES = ['https://www.googleapis.com/auth/calendar']; // Full calendar access const AUDIENCE = 'https://oauth2.googleapis.com/token'; async function generateJWT() { try { // Read and parse the service account credentials const serviceAccount = JSON.parse(fs.readFileSync(SERVICE_ACCOUNT_KEY_FILE, 'utf8')); // JWT payload const jwtPayload = { iss: serviceAccount.client_email, // Issuer: service account email sub: 'user@example.com', // Subject: email of the user whose calendar to access aud: AUDIENCE, // Audience: Google token URL scope: SCOPES.join(' '), // Scopes: space-separated list of scopes iat: Math.floor(Date.now() / 1000), // Issued at: current time in seconds exp: Math.floor(Date.now() / 1000) + 3600 // Expiration: 1 hour from now }; // Sign the JWT using the service account's private key const signedJwt = jwt.sign(jwtPayload, serviceAccount.private_key, { algorithm: 'RS256' }); console.log('Generated JWT:', signedJwt); } catch (error) { console.error('Error generating JWT:', error); } } generateJWT();
组合所有部分并运行脚本以自动创建 Google Meet 活动。
const fetch = require('node-fetch'); async function getAccessToken(signedJwt) { const response = await fetch('https://oauth2.googleapis.com/token', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded', }, body: new URLSearchParams({ 'grant_type': 'urn:ietf:params:oauth:grant-type:jwt-bearer', 'assertion': signedJwt }) }); const data = await response.json(); return data.access_token; }
通过上述步骤,您可以使用服务帐户和域范围授权自动创建带有 Google Meet 链接的 Google 日历活动。此方法非常适合在 Google Workspace 网域中自动召开会议。
通过启用域范围委派并配置服务帐户来模拟用户,您可以以编程方式访问和管理 Google 日历事件,这对于企业环境非常有用。
编码愉快! ✨
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