在express js中下载多个blob？

npm install express

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

app.get('/download', (req, res) => {
  const blobs = [
    { url: 'blob_url_1', filename: 'file1.txt' },
    { url: 'blob_url_2', filename: 'file2.txt' },
    // 添加更多的Blob URL和文件名
  ];

  blobs.forEach(blob => {
    // 下载每个Blob
    // 这里可以使用第三方库如axios或node-fetch来发送HTTP请求获取Blob数据
    // 并将其转换为Blob对象
    // 然后使用res.download()方法将Blob对象发送给客户端进行下载
  });
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

const axios = require('axios');
const { Readable } = require('stream');

// 在路由处理程序中下载每个Blob
blobs.forEach(async blob => {
  try {
    const response = await axios.get(blob.url, { responseType: 'arraybuffer' });
    const blobData = new Blob([response.data], { type: 'application/octet-stream' });

    // 将Blob对象转换为可读流
    const stream = Readable.from(blobData);

    // 使用res.download()方法将Blob发送给客户端进行下载
    res.set('Content-Disposition', `attachment; filename="${blob.filename}"`);
    res.set('Content-Type', 'application/octet-stream');
    stream.pipe(res);
  } catch (error) {
    console.error(`Failed to download ${blob.filename}: ${error}`);
  }
});