Sign Up/In not working in ASP. NET Core application: Azure B2C-CodePudding

We configured user flow with Google as identity provider. Followed the Azure-Sample repository on GitHub in building one ASP.NET Core webapp with .NET6.

appsettings.json:-

"AzureAdB2C": {
    "Instance": "https://b2ctenant.b2clogin.com",
    "ClientId": "3ae27e38-90a3-43c7-9bac-8d3bf33227f9",
    "Domain": "b2ctenant.b2clogin.com",
    "SignedOutCallbackPath": "/signout/B2C_1_susi",
    "SignUpSignInPolicyId": "b2c_1_susi",
    "ResetPasswordPolicyId": "b2c_1_reset",
    "EditProfilePolicyId": "b2c_1_edit_profile" // Optional profile editing policy
    //"CallbackPath": "/signin/B2C_1_sign_up_in"  // defaults to /signin-oidc

https://localhost:44316

enter image description here

Getting exception when users select Sign Up/In option

IOException: IDX20807: Unable to retrieve document from: '[PII of type 'System.String' is hidden. For more details, see https://aka.ms/IdentityModel/PII.]'. HttpResponseMessage: '[PII of type 'System.Net.Http.HttpResponseMessage' is hidden. For more details, see https://aka.ms/IdentityModel/PII.]', HttpResponseMessage.Content: '[PII of type 'System.String' is hidden. For more details, see https://aka.ms/IdentityModel/PII.]'.
Microsoft.IdentityModel.Protocols.HttpDocumentRetriever.GetDocumentAsync(string address, CancellationToken cancel)
Microsoft.IdentityModel.Protocols.OpenIdConnect.OpenIdConnectConfigurationRetriever.GetAsync(string address, IDocumentRetriever retriever, CancellationToken cancel)

Microsoft.IdentityModel.Protocols.ConfigurationManager.GetConfigurationAsync(CancellationToken cancel) nvalidOperationException: IDX20803: Unable to obtain configuration from: '[PII of type 'System.String' is hidden. For more details, see https://aka.ms/IdentityModel/PII.]'. Microsoft.IdentityModel.Protocols.ConfigurationManager.GetConfigurationAsync(CancellationToken cancel) Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.HandleChallengeAsyncInternal(AuthenticationProperties properties) Microsoft.AspNetCore.Authentication.OpenIdConnect.OpenIdConnectHandler.HandleChallengeAsync(AuthenticationProperties properties) Microsoft.AspNetCore.Authentication.AuthenticationHandler.ChallengeAsync(AuthenticationProperties properties) Microsoft.AspNetCore.Authentication.AuthenticationService.ChallengeAsync(HttpContext context, string scheme, AuthenticationProperties properties) Microsoft.AspNetCore.Mvc.ChallengeResult.ExecuteResultAsync(ActionContext context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|30_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|28_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker invoker) Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

CodePudding user response：

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

I registered one application and granted API permissions like below:

enter image description here

I cloned the same GitHub sample and updated appsettings.json file same as you like below:

enter image description here

I ran the above sample and got below screen:

enter image description here

When I clicked on Sign Up/In button, I got same error as you like below:

enter image description here

Note that, you are giving wrong value to your Domain parameter in your appsettings.json file. You need to change value of Domain parameter that can be found here:

enter image description here

To resolve the error, I changed value of Domain parameter in my
appsettings.json file like below:

enter image description here

When I clicked on Sign Up/In button now by running the sample, I got the login screen with Google successfully like below:

enter image description here

Reference: Configure authentication using Azure Active Directory B2C | Microsoft