How to get access token from HttpContext in .Net core 2.0
.Net core 2.1 to access JWT bearer token
var accessToken = Request.Headers[HeaderNames.Authorization];
if you want the pure token this can help you in .net core 3.1
var _bearer_token = Request.Headers[HeaderNames.Authorization].ToString().Replace("Bearer ", "");
and remember you need to add this using
using Microsoft.Net.Http.Headers;