In this article I will explain with an example, how to use HttpContext in ASP.Net Core (.Net Core 5).
Microsoft has permanently removed HttpContext.Current property from .Net Core and introduced a new interface IHttpContextAccessor for ASP.Net Core (.Net Core 5).
Note: For beginners in ASP.Net Core (.Net Core 5), please refer my article ASP.Net Core 5: Hello World Tutorial with Sample Program example.
 
 

What is IHttpContextAccessor

The IHttpContextAccessor is an interface for .Net Core for accessing HttpContext property.
This interface needs to be injected as dependency in the Controller and then later used throughout the Controller.
This interface allows us to access the HttpContext property which in turn provides access to Request collection and also the Response property.
 
 

Startup class Configuration

You will need to add the AddHttpContextAccessor function in the ConfigureServices method of Startup class as shown below.
public void ConfigureServices(IServiceCollection services)
{
    services.AddControllersWithViews();
    services.AddHttpContextAccessor();
}
 
.Net Core 5: Using HttpContext in ASP.Net Core
 
 

Namespaces

You will need to import the following namespace.
using Microsoft.AspNetCore.Http;
 
 

Using IHttpContextAccessor

In the below example, a public property of type IHttpContextAccessor is defined.
Then, the IHttpContextAccessor is injected in the Controller's Constructor using the process of Dependency Injection and assigned to the private property Accessor and later used to access the HttpContext properties.
public class HomeController : Controller
{
    private IHttpContextAccessor Accessor { get; set; }
 
    public HomeController(IHttpContextAccessor _accessor)
    {
        this.Accessor = _accessor;
    }
 
    public IActionResult Index()
    {
        HttpContext context = this.Accessor.HttpContext;
        return View();
    }
}
 
 

Screenshot

.Net Core 5: Using HttpContext in ASP.Net Core
 
 

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