I'm trying to split the logic into different files, but it only works in main

[KlaydKladowayIgr]

Hi! I am trying to split the logic from one file into several, here is an example of my code:

#app.py
from fastapi import FastAPI
from socketio import ASGIApp, AsyncServer

app = FastAPI()
sio = AsyncServer(async_mode="asgi")
sio_app = ASGIApp(sio, app)

app.mount('/', sio_app)

@sio.on("connect")
async def connect(sid, environ):
    print("connect", sid)

#ws.py
from app import sio


@sio.on("test")
async def test(sid): <-- ITS NOT WORKING
    print("test!")
    await sio.emit("test", "test!")

#client.py
from socketio import AsyncClient
import asyncio

client = AsyncClient()

async def main():
    await client.connect("http://127.0.0.1:8000")
    await asyncio.sleep(1)
    await client.emit("test", "1234")

@client.on("test")
async def test(t):
    print(t)


@client.on("connect")
async def connect():
    print("connected!")

if __name__ == "__main__":
    asyncio.run(main())

[miguelgrinberg]

What do you mean by "it's not working"? The ws.py file is not imported anywhere, maybe that is the problem? Also the way you are mounting Socket.IO into app, and app into Socket.IO is likely not what you want. You have to decide which of the two ASGI apps are going to be in the front, and only mount the other one under it.

[KlaydKladowayIgr]

So, I understand what you're talking about. The problem is that when I import sio from app.py in ws.py then the handler in ws.py it doesn't work

[miguelgrinberg]

Where is ws.py imported? That's not in the code you provided.

[KlaydKladowayIgr]

The code that I threw off is the weight that is present. It is correctly noted that ws.py not imported anywhere. In order for this to work, do I need to import it somewhere? And if, let's say, I have 10 or 20 ws.py with similar functionality? Is there any solution, if I understand correctly, to somehow force the program to automatically import these modules?

[miguelgrinberg]

There are lots of ways to import code in Python. But that is something that is outside the scope of the support I provide here and is more appropriate to ask in a Python support board.

[KlaydKladowayIgr]

OK, thanks for the guidance!

[KlaydKladowayIgr]

I solved the problem, but now there is another problem. Here is the code:

#main.py
import importlib, os, socketio
from fastapi import FastAPI


app = FastAPI()

sio = socketio.AsyncServer(async_mode="asgi", cors_allowed_origins="*")

for root, dirs, files in os.walk("ws"):
    for file in files:
        if file.split('_')[-1][:-3] == "handler":
            module = importlib.import_module(root.replace("\\", ".") + '.' + file[:-3])
            module.setup(sio)

print(sio.namespaces)

sio_app = socketio.ASGIApp(sio, app)



app.add_route("/socket.io/", route=sio_app, methods=["GET", "POST"])
app.add_websocket_route("/socket.io/", sio_app)

#ws/test_handler.py
import socketio


class TestHandler(socketio.AsyncNamespace):
    def on_connect(self, sid, environ):
        pass

    def on_disconnect(self, sid):
        pass

    async def on_test(self, sid):
        print("test", sid)


def setup(sio):
    sio.register_namespace(TestHandler("/test"))

#ws/2/12_handler.py
import socketio


class TestNamespace(socketio.AsyncNamespace):
    def on_connect(self, sid, environ):
        print("Connect", sid)

    def on_disconnect(self, sid):
        print("disconnect", sid)


def setup(sio):
    sio.register_namespace(TestNamespace("/"))

As a result, print(sio.namespaces) outputs ['/'], but it should be ['/', '/test']

[KlaydKladowayIgr]

@miguelgrinberg

[miguelgrinberg]

First of all, the sio.namespaces attribute is not a public attribute that is documented. Second, I'm wondering if you are 100% positive that your files are being imported. My guess is that you are still having Python issues and your code needs some debugging.

[KlaydKladowayIgr]

Uh-huh, please tell me, can I make two namespaces with the same path? If not, then please hint that you can do something else, similar in functionality.

[miguelgrinberg]

I don't know what "same path" means in the context of a namespace. You have / and /test, so it's not the same. If you are asking if a single server instance can have more than one namespace, sure, there is no limit.