在NodeJS中下载Dropbox文件的内容

const fs = require('fs');
const request = require('request');
const axios = require('axios');

// Dropbox API相关配置
const accessToken = 'YOUR_DROPBOX_ACCESS_TOKEN';
const fileId = 'YOUR_DROPBOX_FILE_ID';

// 下载文件的路径和文件名
const downloadPath = 'path/to/save/file';
const fileName = 'file.txt';
const filePath = `${downloadPath}/${fileName}`;

// 获取文件下载链接
async function getDownloadLink() {
  try {
    const response = await axios.post(
      'https://content.dropboxapi.com/2/files/get_temporary_link',
      {
        path: fileId
      },
      {
        headers: {
          'Authorization': `Bearer ${accessToken}`,
          'Content-Type': 'application/json'
        }
      }
    );

    return response.data.link;
  } catch (error) {
    console.error('Error getting download link', error);
  }
}

// 下载文件
function downloadFile(downloadUrl) {
  const file = fs.createWriteStream(filePath);
  return new Promise((resolve, reject) => {
    request({
      method: 'GET',
      url: downloadUrl,
      headers: {
        'Authorization': `Bearer ${accessToken}`
      }
    })
    .pipe(file)
    .on('finish', () => {
      console.log(`File downloaded to ${filePath}`);
      resolve();
    })
    .on('error', (error) => {
      console.error('Error downloading file', error);
      reject(error);
    });
  });
}

// 主函数
async function main() {
  const downloadUrl = await getDownloadLink();
  await downloadFile(downloadUrl);
}

main();