通过Drive API访问文件夹中的文件？

Question

I am trying to access some files from my Google Drive, via the Drive API. I followed the tutorial here , to do so in Javascript. Now, simply calling the function listFiles() works correctly, and prints all the files in my drive, along with their ID's.

But, I want to access all the files found in certain folders. Looking online, the drive API has such a function called retrieveAllFilesInFolder(folderId, callback)

It is defined as follows:

function retrieveAllFilesInFolder(folderId, callback) {
  var retrievePageOfChildren = function(request, result) {
    request.execute(function(resp) {
      result = result.concat(resp.items);
      var nextPageToken = resp.nextPageToken;
      if (nextPageToken) {
        request = gapi.client.drive.children.list({
          'folderId' : folderId,
          'pageToken': nextPageToken
        });
        retrievePageOfChildren(request, result);
      } else {
        callback(result);
      }
    });
  }
  var initialRequest = gapi.client.drive.children.list({
      'folderId' : folderId
    });
  retrievePageOfChildren(initialRequest, []);
}

When, I call the code in my local server (passing in a string ID of a folder), I get the following error: quickstart.html:73 Uncaught TypeError: Cannot read property 'list' of undefined , implying there are no children of this folder. I know this to be false. Is there a particular reason that this is happening.

Answer 1

您可以通过Google Developers网站直接在此处进行操作。