Add RedirectToLogin configured login path

aspnetcore/blazor/security/includes/redirecttologin-component.md

@@ -8,3 +8,21 @@ The `RedirectToLogin` component (`RedirectToLogin.razor`):
 Inspect the `RedirectToLogin` component in [reference source](https://github.com/dotnet/aspnetcore/tree/main/src/ProjectTemplates/Web.ProjectTemplates/content/ComponentsWebAssembly-CSharp). The location of the component changed over time, so use GitHub search tools to locate the component.
 
 [!INCLUDE[](~/includes/aspnetcore-repo-ref-source-links.md)]
+
+The project template uses a well-known login path (`authentication/login`). When the app relies on a login endpoint from the OIDC discovery document (`/.well-known/openid-configuration`), <xref:Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationApplicationPathsOptions.LogInPath%2A?displayProperty=nameWithType> contains the login path. Change the login redirect in the `RedirectToLogin` component to use the configured path, as the following code demonstrates.
+
+Add the following directives at the top of the `RedirectToLogin` component:
+
+```razor
+@using Microsoft.Extensions.Options
+@inject IOptionsSnapshot<RemoteAuthenticationOptions<ApiAuthorizationProviderOptions>> Options
+```
+
+Modify the component's redirect in the `OnInitialized` method:
+
+```diff
+- Navigation.NavigateToLogin("authentication/login");
++ Navigation.NavigateToLogin(
++     Options.Get(Microsoft.Extensions.Options.Options.DefaultName)
++     .AuthenticationPaths.LogInPath);
+```