connect javascript client to python websocket server

Question

I have this working python websocket server:

#!/usr/bin/env python
from socket import *

HOST = \'\'
PORT = 8080
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpSerSoc         


        

Answer 1

The Python socket module doesn't have anything to do with websockets.

WebSocket, like HTTP, is a protocol implemented on top of an underlying transport. What your code does is setup a TCP server listening on port 8080. Websockets are a layer above that, just like HTTP. You can see the browser attempt to handshake with your server but it gives up because your server doesn't respond appropriately.

The websocket protocol is somewhat complicated and you'll probably want a library to handle it for you. One example is the websockets module:

#!/usr/bin/env python

import asyncio
import websockets

async def echo(websocket, path):
    async for message in websocket:
        await websocket.send(message)

asyncio.get_event_loop().run_until_complete(
    websockets.serve(echo, 'localhost', 8765))
asyncio.get_event_loop().run_forever()