How to protect WS middleware with authentication?

Hello, how can I allow to connect to ws (AspNetCore.Middleware) only authenticated users?
If use Giraffe, I usually use `requiresAuthentication` to protect path, but I can't do it with this middleware.

Can I use something like this(SignalR authentication):
https://docs.microsoft.com/en-us/aspnet/core/signalr/authn-and-authz?view=aspnetcore-2.1#bearer-token-authentication