google_sign_in_web 0.8.1+2

Flutter plugin for Google Sign-In, a secure authentication system for signing in with a Google account on Android, iOS and Web.

google_sign_in_web

The web implementation of google_sign_in

Usage

Import the package

To use this plugin, follow the plugin installation instructions.

Remember that for web plugins you need to depend both on the "native" version that provides the Dart interface that you'll use in your app), and the "web" version, that provides the implementation of the plugin for the web platform.

This is what the above means to your pubspec.yaml:

...
dependencies:
  ...
  google_sign_in: ^4.0.14
  google_sign_in_web: ^0.8.0
  ...
...

Web integration

First, go through the instructions here to create your Google Sign-In OAuth client ID.

On your web/index.html file, add the following meta tag, somewhere in the head of the document:

  <meta name="google-signin-client_id" content="YOUR_GOOGLE_SIGN_IN_OAUTH_CLIENT_ID.apps.googleusercontent.com">

Read the rest of the instructions if you need to add extra APIs (like Google People API).

Use the plugin

Add the following import to your Dart code:

import 'package:google_sign_in/google_sign_in.dart';

Initialize GoogleSignIn with the scopes you want:

GoogleSignIn _googleSignIn = GoogleSignIn(
  scopes: [
    'email',
    'https://www.googleapis.com/auth/contacts.readonly',
  ],
);

Full list of available scopes.

You can now use the GoogleSignIn class to authenticate in your Dart code, e.g.

Future<void> _handleSignIn() async {
  try {
    await _googleSignIn.signIn();
  } catch (error) {
    print(error);
  }
}

Example

Find the example wiring in the Google sign-in example application.

API details

See the google_sign_in.dart for more API details.

Issues and feedback

Please file issues to send feedback or report a bug. Thank you!