Beginner guide - How to use "Microsoft.AspNet.Identity" with example source code

Category > ASP.NET || Published on : Tuesday, February 21, 2023 || Views: 269 || Microsoft.AspNet.Identity OwinContext SignInManage


Here Pawan Kumar will explain how to How to use "Microsoft.AspNet.Identity" with example source code

Microsoft.AspNet.Identity is a library that provides functionality for managing user authentication, including user registration, login, and password reset. Here's an example of how to use it:

Step 1:- First, create a new ASP.NET MVC project in Visual Studio. You can do this by going to File -> New -> Project, then selecting ASP.NET Web Application from the list of project templates

Step 2:- Next, open the Package Manager Console in Visual Studio by going to Tools -> NuGet Package Manager -> Package Manager Console. In the Package Manager Console, enter the following command to install the Microsoft.AspNet.Identity package:

Install-Package Microsoft.AspNet.Identity

Step 3:-Once the package is installed, you can start using the Microsoft.AspNet.Identity classes in your application. For example, to create a new user, you can use the UserManager class like this:

var user = new ApplicationUser { UserName = "exampleuser", Email = "exampleuser@example.com" };
var userManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(new ApplicationDbContext()));
var result = userManager.Create(user, "Password123!");
if (result.Succeeded)
{
    // User was created successfully
}
else
{
    // There was an error creating the user
}

In this example, we're creating a new ApplicationUser object with a username and email address, then creating a new UserManager object to manage the user. We're then calling the Create method of the UserManager object to create the user with a password.

Note that we're passing an instance of the UserStore class to the UserManager constructor. This is a class that handles data access for the UserManager, and is required to use the Microsoft.AspNet.Identity framework.

Step 4:-You can also use the SignInManager class to handle user login and authentication. Here's an example:

var signInManager = new SignInManager<ApplicationUser, string>(userManager, HttpContext.GetOwinContext().Authentication);
var result = await signInManager.PasswordSignInAsync("exampleuser", "Password123!", true, false);
if (result == SignInStatus.Success)
{
    // User was successfully authenticated
}
else
{
    // Authentication failed
}

In this example, we're creating a new SignInManager object with a reference to the UserManager and the current authentication context. We're then calling the PasswordSignInAsync method to authenticate the user with a username and password.