Authenticate your Flutter application using Asgardeo

This is an sample application that explains how to authenticate your Flutter application using Asgardeo.

Getting Started

The main details on how to get started to use Asgardeo with Flutter is in the following Medium article. [link]

After that

Go to the config/config.json and edit these values according to your configuration

{
    "AuthorizationConfig": {
        "BaseOrganizationUrl": <BASE ORGANIZATION URL>,
        "ClientId": <CLIENT ID OF THE APPLICAITON>,
        "Scopes": [
            "openid",
            "email",
            "profile",
            "internal_login"
        ]
    }
}

Main functions

Login function

  static Future<AuthorizationTokenResponse?> loginAction() async {
    final String clinetId = await AuthorizationConfigUtil.getClientId();
    final List<String> scopes = await AuthorizationConfigUtil.getScopes();
    final String discoveryUrl = await AuthorizationConfigUtil.getDiscoveryUrl();

    try {
      final AuthorizationTokenResponse? result =
          await _flutterAppAuth.authorizeAndExchangeCode(
        AuthorizationTokenRequest(
          clinetId,
          AuthorizationConfigUtil.getRedirectUrl(),
          discoveryUrl: discoveryUrl,
          scopes: scopes,
        ),
      );

      inspect(result);

      return result;
    } catch (e, s) {
      inspect("login error: $e - stack: $s");
      throw Exception("Failed to login");
    }
  }

Logout function

Logout function is in lib/controller/login_controller/login_controller.dart.

  static Future<EndSessionResponse?> logoutAction(
      AuthorizationTokenResponse authorizationTokenResponse) async {
    final String discoveryUrl = await AuthorizationConfigUtil.getDiscoveryUrl();

    try {
      final EndSessionResponse? result = await _flutterAppAuth.endSession(
        EndSessionRequest(
          idTokenHint:
              AuthorizationConfigUtil.getIdToken(authorizationTokenResponse),
          postLogoutRedirectUrl: AuthorizationConfigUtil.getRedirectUrl(),
          discoveryUrl: discoveryUrl,
        ),
      );

      inspect(result);

      return result;
    } catch (e, s) {
      inspect("logout error: $e - stack: $s");
      throw Exception("Failed to logout");
    }
  }

Get user details function

Get user details function is in lib/controller/user_details_controller/user_details_controller.dart.

  static Future<User> getUserDetails(AuthorizationTokenResponse authorizationTokenResponse) async {
    String userinfoUrl = await UserDetailsControllerUtil.getUserIntoUrl();
    String accessToken = AuthorizationConfigUtil.getAccessToken(authorizationTokenResponse);

    final Response response = await Common.getCall(accessToken, userinfoUrl);

    if (response.statusCode == 200) {
      return User.fromJsonString(response.body);
    } else {
      throw Exception('Failed to get user details');
    }
  }

GitHub

View Github