How to send data from a Python server to C++ program

I asked at other places but got no comments

I try to make a C++ program that receives data to process and store from a python server that receives it's data from the browser via Websocket

But C++ has no Websocket as far I aware so I think about setting a separate and parallel python socket server and C++ client just to allow communication

Now for python you always asyncio/threading for this type of thing Is the same case for C++?

Or should I use shared memory instead? I am kind of lost, Inter-Process Communication is a bit confusing

Also I need the C++ to run continuously, so calling it with the python program is not possible