ranking app basic

BlazorApp/RankingApp/Areas/Identity/Pages/Account/LogOut.cshtml

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+@page
+@using Microsoft.AspNetCore.Identity
+@attribute [IgnoreAntiforgeryToken]
+@inject SignInManager<IdentityUser> SignInManager
+@functions {
+    public async Task<IActionResult> OnPost()
+    {
+        if (SignInManager.IsSignedIn(User))
+        {
+            await SignInManager.SignOutAsync();
+        }
+
+        return Redirect("~/");
+    }
+}

BlazorApp/RankingApp/Areas/Identity/Pages/Shared/_LoginPartial.cshtml

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+@using Microsoft.AspNetCore.Identity
+@inject SignInManager<IdentityUser> SignInManager
+@inject UserManager<IdentityUser> UserManager
+@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
+
+<ul class="navbar-nav">
+@if (SignInManager.IsSignedIn(User))
+{
+    <li class="nav-item">
+        <a  class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">Hello @User.Identity?.Name!</a>
+    </li>
+    <li class="nav-item">
+        <form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="/" method="post">
+            <button  type="submit" class="nav-link btn btn-link text-dark">Logout</button>
+        </form>
+    </li>
+}
+else
+{
+    <li class="nav-item">
+        <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register">Register</a>
+    </li>
+    <li class="nav-item">
+        <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login">Login</a>
+    </li>
+}
+</ul>

BlazorApp/RankingApp/Areas/Identity/RevalidatingIdentityAuthenticationStateProvider.cs

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+using Microsoft.AspNetCore.Components;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.Server;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Options;
+using System.Security.Claims;
+
+namespace RankingApp.Areas.Identity
+{
+    public class RevalidatingIdentityAuthenticationStateProvider<TUser>
+        : RevalidatingServerAuthenticationStateProvider where TUser : class
+    {
+        private readonly IServiceScopeFactory _scopeFactory;
+        private readonly IdentityOptions _options;
+
+        public RevalidatingIdentityAuthenticationStateProvider(
+            ILoggerFactory loggerFactory,
+            IServiceScopeFactory scopeFactory,
+            IOptions<IdentityOptions> optionsAccessor)
+            : base(loggerFactory)
+        {
+            _scopeFactory = scopeFactory;
+            _options = optionsAccessor.Value;
+        }
+
+        protected override TimeSpan RevalidationInterval => TimeSpan.FromMinutes(30);
+
+        protected override async Task<bool> ValidateAuthenticationStateAsync(
+            AuthenticationState authenticationState, CancellationToken cancellationToken)
+        {
+            // Get the user manager from a new scope to ensure it fetches fresh data
+            var scope = _scopeFactory.CreateScope();
+            try
+            {
+                var userManager = scope.ServiceProvider.GetRequiredService<UserManager<TUser>>();
+                return await ValidateSecurityStampAsync(userManager, authenticationState.User);
+            }
+            finally
+            {
+                if (scope is IAsyncDisposable asyncDisposable)
+                {
+                    await asyncDisposable.DisposeAsync();
+                }
+                else
+                {
+                    scope.Dispose();
+                }
+            }
+        }
+
+        private async Task<bool> ValidateSecurityStampAsync(UserManager<TUser> userManager, ClaimsPrincipal principal)
+        {
+            var user = await userManager.GetUserAsync(principal);
+            if (user == null)
+            {
+                return false;
+            }
+            else if (!userManager.SupportsUserSecurityStamp)
+            {
+                return true;
+            }
+            else
+            {
+                var principalStamp = principal.FindFirstValue(_options.ClaimsIdentity.SecurityStampClaimType);
+                var userStamp = await userManager.GetSecurityStampAsync(user);
+                return principalStamp == userStamp;
+            }
+        }
+    }
+}