Include service and method info in HandlerContext (connect-node)

[fubhy]

Including the service and method info in the handler context would help with building generic functionality in and around individual method implementations.

For instance, this would allow generic middlewares like a cache wrapper or access control to be wrapped around method implementations generically.

I'm assuming that there'll be a notion of middleware / interceptor added for connect-node at some point? Even with that in mind I think it would be good to forward these values to the handler.

[timostamm]

Yes, adding service and method info to the context is a good call. If you'd like to have a go at it, we'd be happy to accept a contribution!

[timostamm]

For some thoughts in middleware, please also see #348 (reply in thread)