C#•8mo ago

Blazor Web App (.NET 8) - Logout functionality with IdentityCore

What's the best way to implement log out functionality? Looks like I can't use signInManager.SignOutAsync() on an InteractiveServer application

4 Replies

viceroypenguin•8mo ago

I use this a simple link to /logout will trigger the logout, and the auth infra will redirect back to the login page

Maverick (Shaun)•8mo ago

I see you're using HttpContext there, but isn't that unavailable when using interactive server?

viceroypenguin•8mo ago

yes. that's why i'm using a minimal apis endpoint here. to force a page-cycle which will have httpcontext. just because the source page is interactive server doesn't mean all pages are interactive server if you have a link from a blazor page to something else, it'll force a page load like any other

Maverick (Shaun)•8mo ago

I see - thanks for the tip, I'll have a go at implementing it and see if I can get it working That worked, thank you. Using:

public static void MapAccountServices(this IEndpointRouteBuilder app)
{
    app
        .MapGet("/Logout", async (HttpContext context, string returnUrl = "/") =>
        {
            await context.SignOutAsync(IdentityConstants.ApplicationScheme);
            context.Response.Redirect(returnUrl);
        })
        .RequireAuthorization();
}

public static void MapAccountServices(this IEndpointRouteBuilder app)
{
    app
        .MapGet("/Logout", async (HttpContext context, string returnUrl = "/") =>
        {
            await context.SignOutAsync(IdentityConstants.ApplicationScheme);
            context.Response.Redirect(returnUrl);
        })
        .RequireAuthorization();
}

and then navigating to the Logout route while forcing a refresh with: NavigationManager.NavigateTo("/Logout", true); Thanks for the help!

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Blazor Web App (.NET 8) - Logout functionality with IdentityCore