如何使用Flutter访问Google Drive appdata文件夹文件？

Question

GoogleSignIn _googleSignIn = GoogleSignIn(
    scopes: [
      'email',
      'https://www.googleapis.com/auth/drive.appdata',
      'https://www.googleapis.com/auth/drive.file',
    ],
  );
  try {
    GoogleSignInAccount account = await _googleSignIn.signIn();
  } catch (error) {
    print(error);
  }

Answer 1

Future<String> _getAuthToken() async {
  final account = await sign_in_options.signIn();
  if (account == null) {
    return null;
  }
  final authentication = await account.authentication;
  return authentication.accessToken;
}

final Map<String, String> queryParameters = {
  'spaces': 'appDataFolder',
  // more query parameters
};
final headers = { 'Authorization': 'Bearer $authToken' };
final uri = Uri.https('www.googleapis.com', '/drive/v3/files', queryParameters);
final response = await get(uri, headers: headers);

final headers = { 'Authorization': 'Bearer $authToken' };
final initialQueryParameters = { 'uploadType': 'resumable' };
final Map<String, dynamic> metaData = { 
  'name': fileName,
  'parents': ['appDataFolder ']
};
final initiateUri = Uri.https('www.googleapis.com', '/upload/drive/v3/files', initialQueryParameters);
final initiateResponse = await post(initiateUri, headers: headers, body: json.encode(metaData));
final location = initiateResponse.headers['location'];

final headers = { 'Authorization': 'Bearer $authToken' };
final url = 'https://www.googleapis.com/drive/v3/files/$fileId?alt=media';
final response = await get(url, headers: headers);