Google sign in for flutter web - Request offline access

Question

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I am using google_sign_in_web 0.10.2 https://pub.dev/packages/google_sign_in_web and following the posted example

Here is some of the relevant code:

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


  @override
  void initState() {
    super.initState();
            _googleSignIn.onCurrentUserChanged.listen((GoogleSignInAccount? account) {
          setState(() {
            _currentUser = account;
          });
          if (_currentUser != null) {
            _handleGetContact(_currentUser!);
          }
        });
        _googleSignIn.signInSilently();
      }

I can't find a way to set the access_type to offline .

Is this set by default by the library? Else how?

Thank you.

Answer 1

It looks like this is currently not possible: the source code of this library explicitly mentions it:

    // On Android, there isn't an API for refreshing the idToken, so re-use
    // the one we obtained on login.
    response.idToken ??= _idToken;

https://github.com/flutter/plugins/blob/main/packages/google_sign_in/google_sign_in/lib/google_sign_in.dart#L102

There are also open issues and an open pull request which address this issue:

• https://github.com/flutter/plugins/pull/3356 is a PR aiming to fix this

• https://github.com/flutter/flutter/issues/45847 is an issue describing this problem.

• https://github.com/flutter/flutter/issues/15796 another issue

But it is coming!

It looks like very recently (5 days ago) a new parameter forceCodeForRefreshToken has been merged into the development version: https://github.com/flutter/plugins/pull/6130 and will be coming into 6.1.0 (not released yet).