Question 79672 in Flutter Question posted in
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Azure AD B2C redirect_uri error says The redirect URI com.bol.azure_test://oauth/redirect provided in the request is not registered for the client id – Flutter

I am working on a cross platform mobile app in Flutter which will be protected using Azure_AD_B2C. I am just wondering why is it so hard to have the redirect_uri match the one in Azure app with the mobile client. Here is how I got the redirect_uri setup in the Azure portal –
enter image description here

And here is how I have it setup in my Flutter app –

onPressed: () async {
     print("Find Azure API Button Click");
     var queryParameters = {
         'p': "B2C_1_signupsignin",
         'client_id': "client_id",
          'nonce': 'defaultNonce',
          'redirect_uri': 'com.bol.azure_test',
           'scope': "offline_access openid",
                'response_type': "code",
                 'prompt': "login",
                  'grant_type': "authorization_code"
             };
         var uri = Uri.https(
               '{tenant}',
                '/{tenant/oauth2/v2.0/authorize',
                 queryParameters);
          var response = await http.get(uri);
                 print('Response -' + response.body);
           },

With the above code I am trying to open the signupsignin policy in a browser for authentication and return back to the app once authentication is done. Currently it is not opening the browser and the policy.

If print response.statuscode I get 200. But If I print response.body then I get the error saying the below.
The redirect URI com.bol.azure_test; provided in the request is not registered for the client id {client_id;."};

I have been stuck on this for a few weeks now.

Please advise!

Tags:

2

Answers


  1. 0

    Do a network trace and see what redirect URI you are sending, and compare that to what you have configured.

    Make sure you are using the right clientID.

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  2. 0

    I tried to reproduce the same in my environment and got the same error as below:

    enter image description here

    The error "The redirect URI XXX provided in the request is not registered for the client id" usually occurs if there is a mismatch in configuring the redirect URI in the Azure Portal and in the Flutter app.

    To resolve the error, try including the redirect_uri in the Flutter app like below:

    'client_id': "client_id",
'nonce': 'defaultNonce',
'redirect_uri': 'msauth://com.bol.azure_test',

    And in the Portal as:

    enter image description here

    Make sure the ClientID you are passing is valid:

    enter image description here

    I agree with rbrayb, if still the issue persists try running a network trace and compare the redirect_uri you are passing.

    I tried to authorize by using the below endpoint:

    https://testaadb2c.b2clogin.com/testaadb2c.onmicrosoft.com/<policy-name>/oauth2/v2.0/authorize
&client_id=Client_ID
&response_type=code
&redirect_uri=redirect_uri
&response_mode=query
&scope=offline_access openid
&state=12345

    When I passed the valid URIs, I am able to generate the code value successfully like below:

    enter image description here

    If still the issue persists, Check the below:

    • Check whether you have Registered the Application the Azure AD B2C Tenant.
    • You can install Fiddler, enable HTTPS capture and the redirect_uri value and compare it in the Portal.
    • Try setting the redirect_uri as com.bol.azure_test both in Azure Portal and in the Flutter App and try.

    Reference:

    Flutter_azure_b2c: A flutter library to handle the Azure B2C authentication protocol by Luca Calacci

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