I've got a bit of a handle on actix-web. Basically I have my code running a child process, that takes in JSON messages and does things (it's a language server if you're curious), and then returns a JSON message.
Where should I start in trying to expose this child process over a HTTP endpoint? How do I think about the process blocking other processes, or asynchronous processing - and futures? There seems to be a lot of ways out there and I'm really more looking at a jumping off point. If another web framework makes this easier, I'd use it too!