public void ConfigureServices(IServiceCollection services)
{
    // Register the serilog UI services
    services.AddSerilogUi(options => options.UseSqlServer("ConnectionString", "LogTableName"));
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    .
    .
    .

    app.UseRouting();
    app.UseAuthentication();
    app.UseAuthorization();
        
    // Enable middleware to serve log-ui (HTML, JS, CSS, etc.).
    app.UseSerilogUi();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
    });
}

app.UseSerilogUi(option => option.RoutePrefix = "logs");

public void ConfigureServices(IServiceCollection services)
{
    services.AddSerilogUi(options => options
        .EnableAuthorization(authOptions =>
        {
            authOption.AuthenticationType = AuthenticationType.Jwt; // or AuthenticationType.Cookie
            authOptions.Usernames = new[] { "User1", "User2" };
            authOptions.Roles = new[] { "AdminRole" };
        })
        .UseSqlServer(Configuration.GetConnectionString("DefaultConnection"), "LogTableName"));
    .
    .
    .