Flutter google drive

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Flutter Google Drive

Flutter is a cross-platform framework developed by Google that allows developers to build mobile applications for iOS and Android using a single codebase. Google Drive is a file storage and synchronization service provided by Google. In Flutter, you can integrate Google Drive functionality using the googleapis package, which provides access to Google APIs including Google Drive.

Integration Steps:

  1. Add the googleapis package to your pubspec.yaml file:
    2. dependencies:
  googleapis: ^2.0.0
  2. Run flutter packages get command in your terminal to fetch the dependencies.
  3. Create a Google Drive API project on the Google Cloud Platform:
    • Go to the Google Cloud Console.
    • Create a new project or select an existing project.
    • Enable the Google Drive API for your project.
    • Obtain the Client ID and Client Secret for OAuth2 authentication.
  4. Implement the authentication process:
    • Create an instance of the GoogleSignIn class.
    • Authenticate the user using the signIn() method and obtain an access token.
    • Use the access token to create an authenticated service client for Google Drive operations.
  5. Perform Google Drive operations:
    • Use the authenticated service client to create, update, delete, or download files and folders.
    • For example, to create a file, you can use the drive.files.create() method.

Example:

Here’s an example of how to integrate Google Drive in Flutter:

// Create an instance of the GoogleSignIn class
GoogleSignIn googleSignIn = GoogleSignIn(
  scopes: ['https://www.googleapis.com/auth/drive'],
);

// Authenticate the user
GoogleSignInAccount account = await googleSignIn.signIn();
String accessToken = await account.authentication.then((value) => value.accessToken);

// Create an authenticated service client
var client = http.Client();
var authClient = authenticatedClient(client,
    AccessTokenCredentials(accessToken, refreshToken: null, scopes: ['https://www.googleapis.com/auth/drive']));

// Perform Google Drive operation
var drive = GoogleDriveApi(authClient);
var file = drive.files.create(
  File.fromJson({'name': 'my_file.txt'}),
  uploadMedia: DownloadOptions.Metadata,
);

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