如何使用nodejs验证shopify webhook api

npm init
npm install express crypto --save

const express = require('express');
const crypto = require('crypto');

const app = express();
const webhookSecret = 'your_webhook_secret'; // 替换为您的Webhook密钥

app.post('/webhook', (req, res) => {
  const hmacHeader = req.get('X-Shopify-Hmac-Sha256');
  const body = JSON.stringify(req.body);

  const calculatedHmac = crypto
    .createHmac('sha256', webhookSecret)
    .update(body, 'utf8')
    .digest('base64');

  if (hmacHeader === calculatedHmac) {
    // 验证成功，处理Webhook请求
    console.log('Webhook验证成功');
    // 在这里添加您的处理逻辑
    res.sendStatus(200);
  } else {
    // 验证失败，拒绝请求
    console.log('Webhook验证失败');
    res.sendStatus(401);
  }
});

app.listen(3000, () => {
  console.log('应用程序已启动，监听端口3000');
});