React Native, unable to get access token - reactjs

Question

I'm using react-native-app-auth to get access token from azure ad b2c but I'm facing issues in android and in IOS
in android it's showing error that
Unable to complete authorization as there is no interactive call in progress. This can be due to closing the app while the authorization was in process.
https://i.stack.imgur.com/R2Fft.png
and in IOS it's redirecting but not returning anything.
that's my code
const config = {
issuer:
'https://ksg1806.b2clogin.com/tenantId/v2.0/',
clientId: 'clientId',
redirectUrl:
Platform.OS == 'ios'
? 'msauth.com.gfk.consumervoice://auth'
: 'msauth://com.gfkconsumer/Cb7s2L1nogp57%2BKdddohtF8%2Funk%3D',
additionalParameters: {},
scopes: ['openid'],
serviceConfiguration: {
authorizationEndpoint:
'https://ksg1806.b2clogin.com/ksg1806.onmicrosoft.com/b2c_1_signup_signin/oauth2/v2.0/authorize',
tokenEndpoint:
'https://gfkms.b2clogin.com/GFKMS.onmicrosoft.com/b2c_1_signup_signin/oauth2/v2.0/token',
revocationEndpoint:
'https://gfkms.b2clogin.com/GFKMS.onmicrosoft.com/b2c_1_signup_signin/oauth2/v2.0/logout',
},
};
const getAccessToken = async () => {
try {
const authState = await authorize(config);
console.log(authState);
} catch (error: any) {
Alert.alert('Failed to log in', error.message);
}
};
if anyone know about that please help I'm stuck here for many days

Answer 1

Please check if below points can narrow down the issue:
For v2 endpoint scope acts as resource . If the resource identifier
is omitted in the scope parameter, the resource is assumed to be
Microsoft Graph. If token is for Microsoft graph try by changing or
adding scope : User.Read . For example, scope=User.Read is
equivalent to https://graph.microsoft.com/User.Read and
offline_access is for refresh tokens Or try to Add the scope to
existing openid scope like scopes: []
For example:
scopes: ['openid', 'profile', email,'offline_access'], (or) scopes: ['openid', 'profile','offline_access']
Optional:Try also by giving client_secret inside the config
Make sure you have set the redirect url correctly.Add a trailing slash to redirect url to your config - e.g. msauth.BUNDLEID://auth/ - failure to add that may cause it to fail in IOS.
The cause may also be due to the user cancelling the operation in the middle of the process before authentication is completed.See Troubleshooting B2C | Microsoft Docs
References:
AppAuth iOS Token Exchange Problems Azure AD - Stack Overflow
Microsoft identity platform scopes, permissions, & consent | Microsoft Docs
react-native-app-auth (github.com)