In this Article we will learn How to Create Registration and Login using Identity in Asp.Net Core.
Prerequisites
- Download and install .Net Core 6.0 SDK from here
- Download and Install Microsoft Visual Studio 2022 from here
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
Install NuGet Packages
- Microsoft.AspNetCore.Identity.EntityFramework
- Microsoft.EntityFrameworkCore
- Microsoft.EntityFrameworkCore.InMemory
DbContext Class
DbContext Class. The DbContext is used for accessing application data through Entity Framework Core. You need to create DbContext class that derives from “IdentityDbContext” class
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
namespace Auth_Identity_Login.Services
{
//Identity contains all user table to inherits
public class AppDbContext : IdentityDbContext
{
public AppDbContext(DbContextOptions<AppDbContext> option)
:base(option)
{
}
}
}
Create View Model
using System.ComponentModel.DataAnnotations;
namespace Auth_Identity_Login.Models
{
public class UserViewModel
{
[Key]
public int userid { get; set; }
public string username { get; set; }
public string Email { get; set; }
public string password { get; set; }
}
}
Program.cs
using Auth_Identity_Login.Services;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllersWithViews();
builder.Services.AddDbContext<AppDbContext>(config=>
{
config.UseInMemoryDatabase("Memory");
});
builder.Services.AddIdentity<IdentityUser, IdentityRole>(config=>
{
config.Password.RequiredLength = 5;
config.Password.RequireDigit = false;
config.Password.RequireNonAlphanumeric = false;
config.Password.RequireUppercase = false;
})
.AddEntityFrameworkStores<AppDbContext>()
.AddDefaultTokenProviders();
builder.Services.ConfigureApplicationCookie(config =>
{
config.Cookie.Name = "Auth_Tutorial";
config.LoginPath = "/Home/Login";
});
builder.Services.AddMvc();
var app = builder.Build();
// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
app.UseExceptionHandler("/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseAuthentication();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoint =>
{
endpoint.MapDefaultControllerRoute();
});
app.Run();
Previous Article also you can check ASP.Net Core Authentication and Authorization Basics in .Net Core 6.0
Create Controller
Create the Home Controller
using Auth_Identity_Login.Models;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using System.Security.Claims;
namespace Auth_Identity_Login.Controllers
{
public class HomeController : Controller
{
private readonly UserManager<IdentityUser> _userManager;
private readonly SignInManager<IdentityUser> _signInManager;
public HomeController(UserManager<IdentityUser> userManager,SignInManager<IdentityUser> signInManager)
{
_userManager = userManager;
_signInManager = signInManager;
}
public IActionResult Index()
{
return View();
}
public IActionResult Register()
{
return View();
}
public IActionResult Login()
{
return View();
}
[HttpPost]
public async Task<IActionResult> Login(UserViewModel model)
{
var user = await _userManager.FindByNameAsync(model.username);
try
{
if (user != null)
{
var SignInResult = await _signInManager.PasswordSignInAsync(user, model.password,false,false);
if (SignInResult.Succeeded)
{
TempData["Message"] = "Logged In";
return RedirectToAction(nameof(Index));
}
}
}
catch (Exception)
{
TempData["Message"] = "User doesn't Exist";
return RedirectToAction(nameof(Index));
}
TempData["Message"] = "Login Fail";
return RedirectToAction(nameof(Index));
}
[HttpPost]
public async Task<IActionResult> Register(UserViewModel model)
{
var userinfo = new IdentityUser
{
UserName = model.username,
Email = string.Empty,
};
var userresult = await _userManager.CreateAsync(userinfo,model.password);
if (userresult.Succeeded)
{
var SignInResult = await _signInManager.PasswordSignInAsync(userinfo, model.password, false, false);
if (SignInResult.Succeeded)
{
TempData["Message"] = "User Registered";
return RedirectToAction(nameof(Index));
}
}
TempData["Message"] = "User Registeration Fail";
return RedirectToAction(nameof(Index));
}
public async Task<IActionResult> LogOut()
{
await _signInManager.SignOutAsync();
return RedirectToAction(nameof(Index));
}
}
}
Create View
Index.cshtml
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" />
<br/>
<div class="container-fluid">
<div class="btn-group">
<a asp-controller="Home" asp-action="Register" class="btn-primary">Register</a>
<br/>
<a asp-controller="Home" asp-action="Login" class="btn-primary">Login</a>
<h1>@TempData["Message"]</h1>
</div>
</div>
Login.cshtml
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}
<html>
<head>
<link rel="stylesheet" href="~/css/Style.css" />
</head>
<body>
<div class="login">
<h1>Login</h1>
<form method="post" enctype="multipart/form-data" asp-controller="Home" asp-action="Login">
<p><input type="text" name="username" value="" placeholder="Username or Email" required></p>
<p><input type="password" name="password" value="" placeholder="Password" required></p>
<p class="remember_me">
<label>
<input type="checkbox" name="remember_me" id="remember_me">
Remember me on this computer
</label>
</p>
<p class="submit"><input type="submit" name="commit" value="Login"></p>
<hr />
</form>
</div>
</body>
</html>
Register.cshtml
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}
@model Auth_Identity_Login.Models.UserViewModel
<html>
<head>
<link rel="stylesheet" href="~/css/Style.css" />
</head>
<body>
<div class="login">
<h1>User Registeration</h1>
<form method="post" enctype="multipart/form-data" asp-controller="Home" asp-action="Register">
<p><input type="text" name="username" value="" placeholder="Username or Email" required></p>
<p><input type="password" name="password" value="" placeholder="Password" required></p>
<p class="remember_me">
<label>
<input type="checkbox" name="remember_me" id="remember_me">
Remember me on this computer
</label>
</p>
<p class="submit"><input type="submit" name="commit" value="Submit"></p>
<hr />
</form>
</div>
</body>
</html>
