MQTTnet Extension ManagedClient Routing is a fork of https://github.com/IoTSharp/MQTTnet.AspNetCore.Routing
This addon to MQTTnet provides the ability to define controllers and use attribute-based routing against message topics in a manner that is very similar to AspNet Core.
See https://github.com/IoTSharp/MQTTnet.AspNetCore.Routing/LICENSE.