Google Drive

Install OfficeIMO.GoogleWorkspace.Drive. The format translators already use this package; applications can use the same owner directly.

using OfficeIMO.GoogleWorkspace.Drive;

using var drive = new GoogleDriveClient(session);
GoogleDriveAboutFormats formats = await drive.GetFormatsAsync();
GoogleDriveFile folder = await drive.ResolveFolderAsync("folder-id", "expected-drive-id");
GoogleDriveFileList files = await drive.ListFilesAsync(new GoogleDriveListOptions {
    DriveId = folder.DriveId,
    Query = $"'{folder.Id}' in parents and trashed = false"
});

The client covers metadata, folders, shared-drive validation, list/copy/move/delete, permissions, comments/replies, revisions, change tokens, import/export format discovery, downloads, multipart/resumable uploads, progress, cancellation, and temporary content leases.

GoogleDriveClient.GetRequiredScopes(operation) exposes the minimum default scope family. Applications can override read/write scopes through GoogleDriveClientOptions when their consent model differs. A drive.file token only sees files created or explicitly opened by the application; use a broader Drive scope only when the product really needs it.