uvicorn_sticky_session.py

from fastapi import FastAPI
import uuid


app = FastAPI()

COM_API_OBJECT = {}

@app.get("/create")
async def create():
    client_id = uuid.uuid()
    COM_API_OBJECT[str(client_id)] = "Some object that cannot be shared among processes"
    return {"client_id": client_id}
    
@app.get("/do_stuff")
async def do_stuff(client_id:str, stuff: str):
    client = COM_API_OBJECT[client_id]
    print(f"{client} is doing {stuff}")
    return {"ok": True}