React.js从节点后台下载pdf文件

import React from 'react';

class DownloadPDF extends React.Component {
  handleDownload = () => {
    fetch('/api/download-pdf', {
      method: 'GET',
      headers: {
        'Content-Type': 'application/pdf',
      },
    })
      .then((response) => response.blob())
      .then((blob) => {
        const url = window.URL.createObjectURL(new Blob([blob]));
        const link = document.createElement('a');
        link.href = url;
        link.setAttribute('download', 'file.pdf');
        document.body.appendChild(link);
        link.click();
        link.parentNode.removeChild(link);
      })
      .catch((error) => {
        console.error('Error:', error);
      });
  };

  render() {
    return (
      <button onClick={this.handleDownload}>Download PDF</button>
    );
  }
}

export default DownloadPDF;