decode method
Implementation
void decode(String code,callBack) async { //logMsg("Decoding: $code");
_getClient(kIsWeb ? await _consumeVerifier() : codeVerifier, code).then((client) async {
SharedPreferences prefs = await SharedPreferences.getInstance();
if (client != null) {
_logMsg("Storing token");
prefs.setString(fieldToken, client.credentials.accessToken);
}
callBack(client);
});
authenticating = false;
if (!kIsWeb) closeInAppWebView();
}