Getting a Request.Headers value

Question

Very simple I\'m sure, but driving me up the wall! There is a component that I use in my web application that identifies itself during a web request by adding the header \"X

Answer 1

In dotnet core, Request.Headers["X-MyCustomHeader"] returns StringValues which will not be null. You can check the count though to make sure it found your header as follows:

var myHeaderValue = Request.Headers["X-MyCustomHeader"];
if(myHeaderValue.Count == 0) return Unauthorized();
string myHeader = myHeaderValue.ToString(); //For illustration purposes.