Setting websocket port

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Port

How to add port in a websocket. I want specifically mention a port in the websocket server. I can specity the port from JS while connecting to a websocket, but can’t I do it from the server side. Is there any default value? Can I change that default value?

@app.websocket("/ws")
async def websocketEndpoint(websocket: WebSocket):
    print("Awaiting clients connection")
    await websocket.accept()
    while True:
        try:
            await websocket.receive_text()
            resp = {'value': random.uniform(0,1)}
            await websocket.send_json(resp)
        except Exception as e:
            print('error:', e)
            break
    print("connection ended")

Environment

• OS: [e.g. Linux / Windows / macOS]: linux 18.04
• FastAPI Version [e.g. 0.3.0]: 0.65.1

To know the FastAPI version use:

• Python version: 3.8

To know the Python version use:

[chandu1263]

Thank you so much! I finally able to understand what I was doing wrong. That’s a great code and very nice explanation.

[roveo]

I think websockets’ endpoints run on the same port as your http server, so in JS you specify the same port that you specify when calling uvicorn.run (or whatever else you’re using).