const generateCurlUploadFile = async (userAppClient, filename, folderId, uploadedFilename) => {
    const uploadSize = fs.statSync(filename).size;

    const preflightResult = await userAppClient.files.preflightUploadFile(
      folderId,
      {
        name: uploadedFilename,
        size: uploadSize,
      },
      null
    );
    const tokenInfo = await userAppClient.exchangeToken('item_upload', `https://api.box.com/2.0/folders/${folderId}`);


    const curlContent = `curl -i -X POST $'${preflightResult.upload_url}' \\
      -H $'Authorization: Bearer ${tokenInfo.accessToken}' \\
      -H "Content-Type: multipart/form-data" \\
      -F 'attributes={"name":"${uploadedFilename}", "parent":{"id":"${folderId}"}}' \\
      -F file=@${filename}`;

    fs.writeFile('./upload.sh', curlContent, () => console.log('upload.sh file created'));
  };