asp.net core - Custom AspCore Middleware with cancellation Token -

when have custom asp core middle ware want retrieve cancellation token request

i tried add signature of invoke this:

 public async task invoke(httpcontext context,cancellationtoken token) 

but son add it isn't called more.

what doing wrong?

i think idea not able cancel invocation of middleware, inside middleware if call async task accepts cancellation token can create 1 , pass in calling inside there.

a common scenario cancel task if request aborted, create token this:

cancellationtoken cancellationtoken => context?.requestaborted ?? cancellationtoken.none; 

and call async service getting data or querying db, if request aborted cancellation request should happen