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How do you implement authentication and authorization when consuming .NET Core APIs in ASP.NET MVC?

Rocky Dada12430-Aug-2023

Describe how to implement authentication and authorization when consuming .NET Core APIs in an ASP.NET MVC application. Discuss passing tokens, handling secure communication, and ensuring only authorized users access the API.

web apic# .net core .net core api 
Updated on 30-Aug-2023
Rocky Dada

Rocky Dada

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In 1951, government officials discovered gold ore in southern Mysore State where on the same day, Raja Rocky Krishnappa Bairya was born to a poor underage woman Shanti.

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Aryan Kumar

Aryan Kumar

30-Aug-2023

There are a few ways to implement authentication and authorization when consuming .NET Core APIs in ASP.NET MVC. Here are two of the most common methods:

  1. Using the AuthorizeAttribute: The AuthorizeAttribute is an attribute that can be applied to controller actions or methods to restrict access to them. The AuthorizeAttribute takes a single parameter, which is the role or roles that are allowed to access the action or method.
  2. Using the IdentityModel: The IdentityModel is a class that provides a way to authenticate and authorize users in ASP.NET MVC applications. You can use the IdentityModel to authenticate users using a variety of methods, such as username and password, social login, or single sign-on.

Here is an example of how to use the AuthorizeAttribute to implement authentication and authorization when consuming a .NET Core API in ASP.NET MVC:

C#

[Authorize(Roles = "Admin")]
public class HomeController
{
    public async Task<IActionResult> Index()
    {
        // Only admins can access this action.
        return View();
    }
}

Here is an example of how to use the IdentityModel to implement authentication and authorization when consuming a .NET Core API in ASP.NET MVC:

C#

using Microsoft.AspNetCore.Identity;

public class HomeController
{
    private readonly UserManager<IdentityUser> _userManager;

    public HomeController(UserManager<IdentityUser> userManager)
    {
        _userManager = userManager;
    }

    public async Task<IActionResult> Index()
    {
        // Only authenticated users can access this action.
        var user = await _userManager.GetUserAsync(User);
        if (user == null)
        {
            return RedirectToLogin();
        }

        return View();
    }
}

The best way to implement authentication and authorization when consuming .NET Core APIs in ASP.NET MVC will depend on the specific needs of your application. You should consider the factors such as the complexity of the API, the security requirements of your application, and the familiarity of your developers with the different techniques.

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