How HttpContext RESPONSE END in ASP.NET Core

Question

I want use mvc System.Web.HttpContext.Current.Response.End(); but trying in mvc core 2 with this code:

 private readonly IHttpContextAccessor _httpContextAccessor;

            public SmsService(IUnitOfWork uow ,IHttpContextAccessor httpContextAccessor) 
            {
                _uow = uow;
                _uow.CheckArgumentIsNull(nameof(_uow));
                _LockIPRequest= uow.Set<LockIPRequest>();
                this._httpContextAccessor = httpContextAccessor;
            }

      _httpContextAccessor.HttpContext.Response.WriteAsync("</body></html>");
      _httpContextAccessor.HttpContext.Response.end();

_httpContextAccessor.HttpContext.Response.end();

end(); doesn't work mvc core dont exits

Answer 1

As has been mentioned in the comments, Response.End does not exist in the ASP.NET Core world.

Instead of Response.End, you should set the response status code like so:

 _httpContextAccessor.HttpContext.Response.StatusCode = StatusCodes.Status200OK;

This won't fully "end" the response. The middleware still gets a chance to run, but by setting the status code, the framework has a way to understand that a response has been provided. You will however be responsible for making sure that your downstream middleware does not output other content in response to the request. Although this is often not a problem.

Answer 2

Now in August 2022, it is possible to call Response.End through the SystemWebAdapters library. I particularly recommend using it only if you are performing a large-scale migration from a .NET Framework project to .NET Core. If you are in a greenfield project, try not to use this library and write your code following the recommendations for ASP.NET Core request/response lifecycle.