What are the APIs with compiled source code, backend logic for interacting with the file system and DBMS?

Question

API

Good evening,
please tell me any solution to implement the following set of tasks:
1. There must be an API that hangs on a specific port and listens to incoming POST requests (JSON format) from a web application.
2. This solution should be able, upon receiving a POST request, to initiate any classes/methods and perform any logic on the server (including calls to the DBMS) and return a response (JSON format).
3. All API logic must be able to compile.
4. The solution must be able to work with queues of incoming requests, multithreading.
5. The product must be licensed for commercial use.
ps I don't want too much? :)

Answer 1

https://www.silexlabs.org/amfphp/

Answer 2

too much

Answer 3

is it all node.js ?