.net core swap REST controller assemblies graceful shutdown

Question

I would like to achieve the following:

1. Have a generic gateway REST-container. This REST-Container provides no REST Methods but provides backend infrastructure services like audit logging, heartbeat functionality etc.
2. Plugin-assemblies which define routes and provide REST interfaces.

The generic container will have to communicate with the plugin-assemblies. It's the plugin assembly which can de-serialize the received message and provide eg. foreign keys for audit logging.

• I would like to be able to add plugin assemblies --> REST endpoint becomes available
• I would like to be able to stop an endpoint gracefully
• I would like to be able to replace an endpoint with a new version --> new assembly

Is this doable in .net core? What would be pointers to start?