Google Drive for Unity3D plugin.

Upload, explore, download files in someone's Google Drive.

And store your secure data such as score with AppData.

GitHub: https://github.com/midworld/unity-googledrive

and Doxygen Docs

Code:  
  1. var drive = new GoogleDrive();
    2. 

  2. drive.ClientID = "YOUR CLIENT ID";
    3. 

  3. drive.ClientSecret = "YOUR CLIENT SECRET";
    4. 

  4.  
    5. 

  5. // Request authorization.
    6. 

  6. var authorization = drive.Authorize();
    7. 

  7. yield return StartCoroutine(authorization);
    8. 

  8.  
    9. 

  9. if (authorization.Current is Exception)
    10. 

  10. {
    11. 

  11.    Debug.LogWarning(authorization.Current as Exception);
    12. 

  12.    yield break;
    13. 

  13. }
    14. 

  14.  
    15. 

  15. // Authorization succeeded.
    16. 

  16. Debug.Log("User Account: " + drive.UserAccount);
    17. 

  17.  
    18. 

  18. // Upload a text file.
    19. 

  19. var bytes = Encoding.UTF8.GetBytes("world!");
    20. 

  20. yield return StartCoroutine(drive.UploadFile("hello.txt", "text/plain", bytes));
    21. 

  21.  
    22. 

  22. // Get all files.
    23. 

  23. var listFiles = drive.ListAllFiles();
    24. 

  24. yield return StartCoroutine(listFiles);
    25. 

  25.  
    26. 

  26. var files = GoogleDrive.GetResult<List<GoogleDrive.File>>(listFiles);
    27. 

  27. if (files != null)
    28. 

  28. {
    29. 

  29.    foreach (var file in files)
    30. 

  30.    {
    31. 

  31.        // Download a text file and print.
    32. 

  32.        if (file.Title.EndsWith(".txt"))
    33. 

  33.        {
    34. 

  34.            var download = drive.DownloadFile(file);
    35. 

  35.            yield return StartCoroutine(download);
    36. 

  36.  
    37. 

  37.            var data = GoogleDrive.GetResult<byte[]>(download);
    38. 

  38.            Debug.Log(System.Text.Encoding.UTF8.GetString(data));
    39. 

  39.        }
    40. 

  40.    }
    41. 

  41. }

Code:  
  1. // Upload score in 'AppData'.
    2. 

  2. int score = 10000;
    3. 

  3. var bytes = Encoding.UTF8.GetBytes(score.ToString());
    4. 

  4.  
    5. 

  5. // User cannot see 'score.txt'. Only your app can see this file.
    6. 

  6. StartCoroutine(drive.UploadFile("score.txt", "text/plain", drive.AppData, bytes));