error:code:Authorization_RequestDenied","message":"Insufficient privileges to complete the operation.

Question

I'm tring to get data of signed in user from microsoft azure using microsoft graph api, i'm getting access token and also login successfully,

but i'm getting error as : "Insufficient privileges to complete the operation."

My Code:

import 'dart:convert';
import 'dart:io';
import 'package:http/http.dart' as http;
import 'package:aad_oauth/aad_oauth.dart';
import 'package:aad_oauth/model/config.dart';
import 'package:exim_bank_leave_app/Utils/AppTheme.dart';
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'Screens/Listing.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: MyTheme.darkTheme(context),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  static var user;
  static final Config config = Config(
    tenant: 'f6f3ce---------298738',
    clientId: 'cba06e50-faa9--------2f5',
    scope: 'openid profile offline_access',
    redirectUri: 'https://login.microsoftonline.com/common/oauth2/nativeclient',
  );

  static final AadOAuth oauth = AadOAuth(config);
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  SharedPreferences prefs;
  static final String accessToken = accessToken;
  var token;

  @override
  void initState() {
    super.initState();
    loadData();
  }

  @override
  Widget build(BuildContext context) {
    // adjust window size for browser login
    var screenSize = MediaQuery.of(context).size;
    var rectSize =
        Rect.fromLTWH(0.0, 25.0, screenSize.width, screenSize.height - 25);
    MyHomePage.oauth.setWebViewScreenSize(rectSize);

    return Scaffold(
      body: Container(),
    );
  }

  loadData() async {
    var auth = MyHomePage.oauth;
    await auth.login();
    var accessToken = await auth.getAccessToken();

    Navigator.pushReplacement(
        context, MaterialPageRoute(builder: (context) => Listing()));

    prefs = await SharedPreferences.getInstance();
    while (prefs == null || accessToken == null) continue;
    final String idToken = await auth.getIdToken();

    setState(() {
      prefs.setString('token', idToken);
    });

    print('Token $accessToken');
    final graphResponse = await http.get('https://graph.microsoft.com/v1.0/me',
        headers: {HttpHeaders.authorizationHeader: "Bearer $accessToken"});
    print(graphResponse.body.toString());
    print(graphResponse.statusCode);
  }

  static void logout() async {
    await MyHomePage.oauth.logout();
  }
}

Answer 1

Check the answer provided on this thread and let us know if it solves your scenario. This issue happens when the permissions are not granted by admin.