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Hello Soheb,

Please refere the below links, in that help you how to implement the role based authorization in .net core application.

https://learn.microsoft.com/en-us/aspnet/core/security/authorization/roles?view=aspnetcore-8.0

https://dotnetcorecentral.com/blog/asp-net-core-authorization/
https://www.yogihosting.com/aspnet-core-identity-roles/
https://jasonwatmore.com/post/2022/02/18/net-6-role-based-authorization-tutorial-with-example-api
https://medium.com/@siva.veeravarapu/role-based-authorization-in-net-core-a-beginners-guide-with-code-snippets-b952e5b952f7
 

Thanks

In .NET, you can use the built-in role-based authorization to control access to different parts of your application based on the user’s role. Here’s a high-level overview of how you can implement this:

1. Define Roles: Define roles such as “Admin”, “Seller”, and “User” in your system.

2. Assign Roles: When a user logs in, assign them a role based on their credentials.

3. Protect Methods: Use the [Authorize(Roles = "RoleName")] attribute to protect your methods. For example:

[Authorize(Roles = "Admin")]
public IActionResult SomeAdminMethod()
{
  // ...
}

[Authorize(Roles = "Seller")]
public IActionResult DisplayProduct()
{
  // ...
}

[Authorize(Roles = "Seller, User")]
public IActionResult Index()
{
  // ...
}

[Authorize(Roles = "Seller, User")]
public IActionResult AddToCart(int productId)
{
  // Check if the user is a seller and if they are the owner of the product
  if (User.IsInRole("Seller"))
  {
    var product = _context.Products.Find(productId);
    if (product.SellerId != User.FindFirstValue(ClaimTypes.NameIdentifier))
    {
      return Unauthorized();
    }
  }

  // Add the product to the cart
  // ...

  return Ok();
}

 

In the above code, _context is your database context, and User.FindFirstValue(ClaimTypes.NameIdentifier) gives you the ID of the currently logged-in user.

Thanks

To achieve role-based access control in a Dot Net application, you can utilize ASP.NET Identity for user authentication and authorization. Define roles for admin, seller, and user, and assign these roles to users upon login. Then, use Authorize attribute with roles to restrict access to specific methods based on the user's role.

[Authorize(Roles = "Admin")]
public IActionResult AllApplication()
{
    // Code for admin access
}

[Authorize(Roles = "Seller")]
public IActionResult DisplayProduct()
{
    // Code for seller access
}

[Authorize(Roles = "Seller")]
public IActionResult Index()
{
    // Code for seller access
}

[Authorize(Roles = "Seller")]
public IActionResult AddToCart()
{
    // Code for seller access to their own products
}

[Authorize(Roles = "User")]
public IActionResult DisplayProductData()
{
    // Code for user access
}

[Authorize(Roles = "User")]
public IActionResult AddToCart()
{
    // Code for user access to add their own items to cart
}

By applying the Authorize attribute with specific roles to each method, you can control access based on the user's role effectively.