How To Access Hidden App Data On Google Drive
The application data folder is a special hidden folder that your app can use to store application-specific data, such as configuration files. The application data folder is automatically created when you attempt to create a file in it. Use this folder to store any files that the user shouldn't directly interact with. This folder is only accessible by your application and its contents are hidden from the user and from other Drive apps.
The application data folder is deleted when a user uninstalls your app from their MyDrive. Users can also delete your app's data folder manually.
Application data folder scope
Before you can access the application data folder, you must request access to the https://www.googleapis.com/auth/drive.appdata scope. For more information about scopes and how to request access to them, refer to Authenticate your users.
Viewing amount of storage used by application data folder
To view the amount of storage used by the application data folder, use the Manage Apps dialog:
Create a file in the application data folder
To create a file in the application data folder, specify appDataFolder in the parents property of the file and use the files.create method to upload the file to the folder. The following example shows how to insert a file into a folder using a client library:
Java
File fileMetadata = new File(); fileMetadata.setName("config.json"); fileMetadata.setParents(Collections.singletonList("appDataFolder")); java.io.File filePath = new java.io.File("files/config.json"); FileContent mediaContent = new FileContent("application/json", filePath); File file = driveService.files().create(fileMetadata, mediaContent) .setFields("id") .execute(); System.out.println("File ID: " + file.getId()); Python
file_metadata = { 'name': 'config.json', 'parents': ['appDataFolder'] } media = MediaFileUpload('files/config.json', mimetype='application/json', resumable=True) file = drive_service.files().create(body=file_metadata, media_body=media, fields='id').execute() print 'File ID: %s' % file.get('id') PHP
$fileMetadata = new Google_Service_Drive_DriveFile(array( 'name' => 'config.json', 'parents' => array('appDataFolder') )); $content = file_get_contents('files/config.json'); $file = $driveService->files->create($fileMetadata, array( 'data' => $content, 'mimeType' => 'application/json', 'uploadType' => 'multipart', 'fields' => 'id')); printf("File ID: %s\n", $file->id); .NET
var fileMetadata = new File() { Name = "config.json", Parents = new List<string>() { "appDataFolder" } }; FilesResource.CreateMediaUpload request; using (var stream = new System.IO.FileStream("files/config.json", System.IO.FileMode.Open)) { request = driveService.Files.Create( fileMetadata, stream, "application/json"); request.Fields = "id"; request.Upload(); } var file = request.ResponseBody; Console.WriteLine("File ID: " + file.Id); Ruby
file_metadata = { name: 'config.json', parents: ['appDataFolder'] } file = drive_service.create_file(file_metadata, fields: 'id', upload_source: 'files/config.json', content_type: 'application/json') puts "File Id: #{file.id}" Node.js
var fileMetadata = { 'name': 'config.json', 'parents': ['appDataFolder'] }; var media = { mimeType: 'application/json', body: fs.createReadStream('files/config.json') }; drive.files.create({ resource: fileMetadata, media: media, fields: 'id' }, function (err, file) { if (err) { // Handle error console.error(err); } else { console.log('Folder Id:', file.id); } }); Objective-C
NSData *fileData = [[NSFileManager defaultManager] contentsAtPath:@"files/config.json"]; GTLRDrive_File *metadata = [GTLRDrive_File object]; metadata.name = @"config.json"; metadata.parents = @[@"appDataFolder"]; GTLRUploadParameters *uploadParameters = [GTLRUploadParameters uploadParametersWithData:fileData MIMEType:@"application/json"]; uploadParameters.shouldUploadWithSingleRequest = TRUE; GTLRDriveQuery_FilesCreate *query = [GTLRDriveQuery_FilesCreate queryWithObject:metadata uploadParameters:uploadParameters]; query.fields = @"id"; [driveService executeQuery:query completionHandler:^(GTLRServiceTicket *ticket, GTLRDrive_File *file, NSError *error) { if (error == nil) { NSLog(@"File ID %@", file.identifier); } else { NSLog(@"An error occurred: %@", error); } }]; For further information on creating files in folders, refer to Create and populate folders.
Search for files in the application data folder
To search for files in ithe application data folder, set the spaces field to appDataFolder and use the files.list method. The following example shows how to search for files in the application data folder using a client library:
Java
FileList files = driveService.files().list() .setSpaces("appDataFolder") .setFields("nextPageToken, files(id, name)") .setPageSize(10) .execute(); for (File file : files.getFiles()) { System.out.printf("Found file: %s (%s)\n", file.getName(), file.getId()); } Python
response = drive_service.files().list(spaces='appDataFolder', fields='nextPageToken, files(id, name)', pageSize=10).execute() for file in response.get('files', []): # Process change print 'Found file: %s (%s)' % (file.get('name'), file.get('id')) PHP
$response = $driveService->files->listFiles(array( 'spaces' => 'appDataFolder', 'fields' => 'nextPageToken, files(id, name)', 'pageSize' => 10 )); foreach ($response->files as $file) { printf("Found file: %s (%s)", $file->name, $file->id); } .NET
var request = driveService.Files.List(); request.Spaces = "appDataFolder"; request.Fields = "nextPageToken, files(id, name)"; request.PageSize = 10; var result = request.Execute(); foreach (var file in result.Files) { Console.WriteLine(String.Format( "Found file: {0} ({1})", file.Name, file.Id)); } Ruby
response = drive_service.list_files(spaces: 'appDataFolder', fields: 'nextPageToken, files(id, name)', page_size: 10) for file in response.files # Process change puts "Found file: #{file.name} #{file.id}" end Node.js
drive.files.list({ spaces: 'appDataFolder', fields: 'nextPageToken, files(id, name)', pageSize: 100 }, function (err, res) { if (err) { // Handle error console.error(err); } else { res.files.forEach(function (file) { console.log('Found file:', file.name, file.id); }); } }); Objective-C
GTLRDriveQuery_FilesList *query = [GTLRDriveQuery_FilesList query]; query.spaces = @"appDataFolder"; query.fields = @"nextPageToken, files(id, name)"; [driveService executeQuery:query completionHandler:^(GTLRServiceTicket *ticket, GTLRDrive_FileList *files, NSError *error) { if (error == nil) { for(GTLRDrive_File *file in files) { NSLog(@"Found file: %@ (%@)", file.name, file.identifier); } } else { NSLog(@"An error occurred: %@", error); } }]; How To Access Hidden App Data On Google Drive
Source: https://developers.google.com/drive/api/v3/appdata
Posted by: randolphimesers.blogspot.com
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