Accessing Httpcontext outside controller in .net core

Question

I can't access Session variables outside controllers, there are over 200 examples where they advise you to add ;

services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();

services.AddHttpContextAccessor();

and use

public class DummyReference
{
        private IHttpContextAccessor _httpContextAccessor;
        public DummyReference(IHttpContextAccessor httpContextAccessor)
        {
            _httpContextAccessor = httpContextAccessor;
        }
        public void DoSomething()
        {
            // access _httpcontextaccessor to reach sessions variables
        }
}

But, no-one mentions how to call this class from my controller. How can I reach that class?

If changed it to static then I need bypass construct. If I create it I need httpcontextaccessor for construct.

For who wants learn more why I approached like that, I want to write class include methods like encrypt, decrypt database tables RowIDs for masking in VIEW with value+sessionvariable to ensure its not modified.

Also I want DummyReference to be static, that way I can easily reach DummyReference.EncryptValue or DecryptValue.

Possible duplicate of How to get HttpContext.Current in ASP.NET Core? — Asons
– Asons, Commented Jul 6, 2019 at 11:37

heimzza · Accepted Answer · 2021-06-17 07:58:28Z

9

Don't use IHttpContextAccessor outside of controllers. Instead, use HttpContextAccessor.

Like this in static classes ;

private static HttpContext _httpContext => new HttpContextAccessor().HttpContext;

Or anywhere else. You still need service of course and the thing we do in the controllers.

answered Jun 17, 2021 at 7:58

heimzza

2867 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Joshua Robinson · Accepted Answer · 2019-09-12 16:59:06Z

6

the same happend to me I found the solution putting in my method into the no controller class (where I want to use it)

var HttpContext = _httpContextAccessor.HttpContext;

var vUser =  _httpContextAccessor.HttpContext.Session.GetString("user");

edited Sep 12, 2019 at 16:59

Joshua Robinson

3,5979 silver badges23 bronze badges

answered Sep 12, 2019 at 16:03

RICARDO VASQUEZ

1061 silver badge2 bronze badges

Comments

Barna Norbert · Accepted Answer · 2022-12-16 13:04:48Z

4

According to Microsoft docs

Add

builder.Services.AddHttpContextAccessor();

Then

private readonly IHttpContextAccessor _httpContextAccessor;

public UserRepository(IHttpContextAccessor httpContextAccessor) =>
    _httpContextAccessor = httpContextAccessor;

answered Dec 16, 2022 at 13:04

Barna Norbert

413 bronze badges

Comments

Robert Perry · Accepted Answer · 2019-07-05 12:02:39Z

1

That code gets you the current HttpContext. Sessions are slightly different: https://learn.microsoft.com/en-us/aspnet/core/fundamentals/app-state?view=aspnetcore-2.2

answered Jul 5, 2019 at 12:02

Robert Perry

1,9741 gold badge14 silver badges14 bronze badges

Collectives™ on Stack Overflow

Accessing Httpcontext outside controller in .net core

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related