Identity in asp net mvc framework using identity core

Introduction

ASP.NET is a popular programming language used for building web applications. One of the key features of ASP.NET is its ability to handle user authentication and authorization. In this article, we will explore how to implement identity in ASP.NET MVC framework using Identity Core.

What is Identity Core?

Identity Core is a membership system that allows you to add user authentication and authorization to your ASP.NET applications. It provides a set of APIs and UI templates that make it easy to manage user accounts, roles, and claims.

up Identity Core in ASP.NET MVC

To get started with Identity Core, you need to create a new ASP.NET MVC project. Open Studio and “Create a new project”. Choose the ASP.NET Web Application and select MVC as the project type. Make sure to check the “Authentication” checkbox and choose “Individual User Accounts” as the authentication type.


// ASP.NET code example
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddDbContext(options =>
            options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

        services.AddIdentity()
            .AddEntityFrameworkStores()
            .AddDefaultTokenProviders();

        services.Configure(options =>
        {
            // Configure password requirements
            options.Password.RequireDigit = true;
            options.Password.RequiredLength = 8;
            options.Password.RequireNonAlphanumeric = false;
            options.Password.RequireUppercase = true;
            options.Password.RequireLowercase = false;
        });

        services.ConfigureApplicationCookie(options =>
        {
            // Configure cookie settings
            options.Cookie.HttpOnly = true;
            options.ExpireTimeSpan = TimeSpan.FromMinutes(30);
            options.LoginPath = "/Account/Login";
            options.AccessDeniedPath = "/Account/AccessDenied";
            options.SlidingExpiration = true;
        });
    }

    public void Configure(IApplicationBuilder app, IHostingEnvironment env)
    {
        // Configure middleware
        app.UseAuthentication();
        app.UseMvcWithDefaultRoute();
    }
}

Creating User Registration and Login Pages

Once you have set up Identity Core, you can easily create user registration and login pages. In your ASP.NET MVC project, add a new called “AccountController”. the controller, add the actions:


// ASP.NET code example
public class AccountController : Controller
{
    private readonly UserManager _userManager;
    private readonly SignInManager _signInManager;

    public AccountController(UserManager userManager, SignInManager signInManager)
    {
        _userManager = userManager;
        _signInManager = signInManager;
    }

    [HttpGet]
    public IActionResult Register()
    {
        return View();
    }

    [HttpPost]
    public async Task Register(RegisterViewModel model)
    {
        if (ModelState.IsValid)
        {
            var user = new ApplicationUser {  = model.Email, Email = model.Email };
            var result = await _userManager.CreateAsync(user, model.Password);

            if (result.Succeeded)
            {
                await _signInManager.SignInAsync(user, : false);
                return RedirectToAction("Index", "Home");
            }

            foreach (var  in result.Errors)
            {
                ModelState.AddModelError("", error.Description);
            }
        }

        return View(model);
    }

    [HttpGet]
    public IActionResult Login()
    {
        return View();
    }

    [HttpPost]
    public async Task Login(LoginViewModel model)
    {
        if (ModelState.IsValid)
        {
            var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: false);

            if (result.Succeeded)
            {
                return RedirectToAction("Index", "Home");
            }

            ModelState.AddModelError("", "Invalid login attempt.");
        }

        return View(model);
    }
}

Conclusion

Implementing identity in ASP.NET MVC framework using Identity Core is a powerful way to add user authentication and authorization to your web applications. With the help of Identity Core, you can easily create user registration and login pages, manage user accounts, roles, and claims. By following the steps outlined in this article, you can enhance the security and functionality of your ASP.NET MVC applications.

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