Add protected admin scope with login

RazorPagesMovie/Program.cs

@@ -1,3 +1,4 @@
+using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.EntityFrameworkCore;
 using RazorPagesMovie.Data;
 using RazorPagesMovie.Models;
@@ -6,7 +7,19 @@ var builder = WebApplication.CreateBuilder(args);
 builder.Configuration.AddJsonFile("appsettings.Local.json", optional: true, reloadOnChange: true);
 builder.Services.AddDbContext<RazorPagesMovieContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("RazorPagesMovieContext") ?? throw new InvalidOperationException("Connection string 'RazorPagesMovieContext' not found.")));
-builder.Services.AddRazorPages();
+
+builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+    .AddCookie(options =>
+    {
+        options.LoginPath = "/Login";
+        options.AccessDeniedPath = "/Login";
+    });
+builder.Services.AddAuthorization();
+
+builder.Services.AddRazorPages(options =>
+{
+    options.Conventions.AuthorizeFolder("/Admin");
+});
 
 var app = builder.Build();
 
@@ -27,6 +40,7 @@ if (!app.Environment.IsDevelopment())
 app.UseHttpsRedirection();
 app.UseStaticFiles();
 app.UseRouting();
+app.UseAuthentication();
 app.UseAuthorization();
 app.MapRazorPages();
 app.Run();