Visual Studio 2022 - Struggling with Blazor WebAssembly Authentication State Not Persisting Between Sessions
I've hit a wall trying to Does anyone know how to Could someone explain I'm currently developing a Blazor WebAssembly application using Visual Studio 2022, and I'm having trouble with the authentication state not persisting across sessions..... I've implemented authentication using the built-in `AuthenticationStateProvider`, and while it works fine during a single session, the user's logged-in state does not persist when they refresh the page or reopen the browser. Here's a simplified version of my `CustomAuthenticationStateProvider`: ```csharp public class CustomAuthenticationStateProvider : AuthenticationStateProvider { private readonly ILocalStorageService _localStorage; public CustomAuthenticationStateProvider(ILocalStorageService localStorage) { _localStorage = localStorage; } public async Task MarkUserAsAuthenticated(string userName) { var authenticatedUser = new ClaimsPrincipal(new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, userName) }, "custom")); await _localStorage.SetItemAsync("authToken", userName); NotifyAuthenticationStateChanged(Task.FromResult(new AuthenticationState(authenticatedUser))); } public async Task MarkUserAsLoggedOut() { await _localStorage.RemoveItemAsync("authToken"); var anonymousUser = new ClaimsPrincipal(new ClaimsIdentity(); NotifyAuthenticationStateChanged(Task.FromResult(new AuthenticationState(anonymousUser))); } public async Task<ClaimsPrincipal> GetAuthenticationStateAsync() { var token = await _localStorage.GetItemAsync<string>("authToken"); var user = string.IsNullOrEmpty(token) ? new ClaimsPrincipal(new ClaimsIdentity() : new ClaimsPrincipal(new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, token) }, "custom")); return new AuthenticationState(user); } } ``` I am using the `Blazored.LocalStorage` for managing the token, but it seems that even after setting the token in local storage, the state is not being restored correctly on page refresh. Here’s how I register services in `Program.cs`: ```csharp builder.Services.AddBlazoredLocalStorage(); builder.Services.AddScoped<AuthenticationStateProvider, CustomAuthenticationStateProvider>(); ``` I've checked that `ILocalStorageService` is being injected properly, and I'm calling `GetAuthenticationStateAsync` in my main component to check the user's authentication state on app load. However, I still see the user as logged out after a refresh. I've also ensured that the browser allows local storage access, and I tried clearing the local storage and testing again. I am wondering if there are specific steps or best practices I may be missing for persisting authentication state in a Blazor WebAssembly app. Any insights or suggestions would be greatly appreciated! My development environment is macOS. I'm working in a Debian environment. How would you solve this? Any examples would be super helpful.