ASP.Net Core Authentication and Authorization Basics in .Net Core 6.0

In this article, we will discuss the ASP.Net Core Authentication and Authorization Basics in .Net Core 6.0.

Prerequisites

• Download and install .Net Core 6.0 SDK from here
• Download and Install Microsoft Visual Studio 2022 from here

Previous Article you can also check Create ASP.Net Core Web API

Create ASP.NET Core Web App

• Open visual studio and click the Create New Project Option
• Select the Blank Template

• Enter the name of the Project

Select Framework and Click on Create

Create Controller

Create the Home Controller

using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System.Security.Claims;
namespace App_Auth_Authorization.Controllers
{
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
        [Authorize]
        public IActionResult Employee()
        {
            return View();
        }
 public async Task<IActionResult> Authenticate()
        {
            var Auth_Claims = new List<Claim>
            {
                new Claim(ClaimTypes.Name,"labpys.com"),
                new Claim(ClaimTypes.Name,"Example@labpys.com"),               
            };
            var license = new List<Claim>() {
                new Claim(ClaimTypes.Name, "Admin"),
                new Claim("UniqueIdentity", "B+"),
            };
            var AuthIdenity = new ClaimsIdentity(Auth_Claims, "Auth_Tutorial");
            var LicenseIdentity = new ClaimsIdentity(license, "Auth_Tutorial");
            var userPrincipal = new ClaimsPrincipal( new[] { AuthIdenity, LicenseIdentity });
            await HttpContext.SignInAsync(userPrincipal);
            return Redirect(nameof(Index));
        }
        
    }
}

Authorization – To make ASP.NET Core Authorized Attribute work, you must include the relevant middleware in program class.

var builder = WebApplication.CreateBuilder(args);
var services = builder.Services;    
services.AddControllersWithViews();
services.AddAuthentication("CookieAuth")
    .AddCookie("CookieAuth", config =>
    {
        config.Cookie.Name = "Auth_Tutorial";
        config.LoginPath = "/Home/Authenticate";
    });
services.AddMvc();
var app = builder.Build();
app.UseAuthentication();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
    endpoints.MapDefaultControllerRoute();
});
app.Run();

Customize View

Index.cshtml

 
@{
}
<h1>Layout Page</h1>

Employee.cshtml

 
@{
}
<h1>Employee Detail</h1>