Graceful shutdown & startup are two use cases that I used this for, just today. When my express server gets a SIGTERM I want it to stop accepting new requests

Graceful shutdown & startup are two use cases that I used this for, just today. When my express server gets a SIGTERM I want it to stop accepting new requests but finish pending requests before exiting. Likewise during startup, the HTTP server is currently up before all resources are available - DB backends and the like. So I await a .ready promise before all requests iff we are not inited. It can be abused into spaghetti for sure, but actual use cases are not that exotic imho