Add custom header to all responses in Web API

Question

Simple question, and I am sure it has a simple answer but I can\'t find it.

I am using WebAPI and I would like to send back a custom header to all responses (server

Answer 1

I had the same problem while trying to add a new header to the whole controller, just add "services.AddHttpContextAccessor();" to startup.cs then create your controller

public class EnController : Controller{

        public EnController(IHttpContextAccessor myHttpAccessor)
        {

            myHttpAccessor.HttpContext.Response.Headers.Add("Content-Language", "en-US");

        }

       ... more methods here... 

}