ASP.NET Core - Handling Custom Header on Request/Response
There may be situations where you want to add a custom header in your ASP.NET Core API response or you need to read a header from the request.
commit 93b7ace · authored · amended · 1 min read
You can access the request headers or modify the response headers easily inside the controller in your ASP.NET Core applications.
Add custom header to response
Response.Headers.Add("your-custom-header-id", custom_header_value);Get a request header value
var yourHeader = Request.Headers["your-custom-header-id"].FirstOrDefault();Get bearer token value
Another example where we get the bearer token from the Authorization header,
var authHeader = Request.Headers["Authorization"].FirstOrDefault();
if (authHeader != null && authHeader.StartsWith("Bearer", StringComparison.OrdinalIgnoreCase)){ var loginToken = authHeader.Replace("Bearer ", string.Empty, StringComparison.OrdinalIgnoreCase);}
