Perpustakaan Python WebSocket yang owerful untuk komunikasi masa nyata: Panduan Pakar

import asyncio
import websockets

async def echo(websocket, path):
    async for message in websocket:
        await websocket.send(f"Echo: {message}")

async def main():
    server = await websockets.serve(echo, "localhost", 8765)
    await server.wait_closed()

asyncio.run(main())

from aiohttp import web
import aiohttp

async def websocket_handler(request):
    ws = web.WebSocketResponse()
    await ws.prepare(request)

    async for msg in ws:
        if msg.type == aiohttp.WSMsgType.TEXT:
            await ws.send_str(f"Echo: {msg.data}")
        elif msg.type == aiohttp.WSMsgType.ERROR:
            print(f'ws connection closed with exception {ws.exception()}')

    return ws

app = web.Application()
app.add_routes([web.get('/ws', websocket_handler)])

if __name__ == '__main__':
    web.run_app(app)

from fastapi import FastAPI, WebSocket
from fastapi.websockets import WebSocketDisconnect

app = FastAPI()

@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
    await websocket.accept()
    try:
        while True:
            data = await websocket.receive_text()
            await websocket.send_text(f"Echo: {data}")
    except WebSocketDisconnect:
        print("Client disconnected")

if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)

import socketio

sio = socketio.AsyncServer(async_mode='asgi')
app = socketio.ASGIApp(sio)

@sio.event
async def connect(sid, environ):
    print(f"Client connected: {sid}")

@sio.event
async def message(sid, data):
    await sio.emit('message', f"Echo: {data}", to=sid)

@sio.event
async def disconnect(sid):
    print(f"Client disconnected: {sid}")

if __name__ == '__main__':
    import uvicorn
    uvicorn.run(app, host='localhost', port=8000)

from autobahn.asyncio.websocket import WebSocketServerProtocol, WebSocketServerFactory

class MyServerProtocol(WebSocketServerProtocol):
    def onConnect(self, request):
        print(f"Client connecting: {request.peer}")

    def onOpen(self):
        print("WebSocket connection open.")

    async def onMessage(self, payload, isBinary):
        if isBinary:
            print(f"Binary message received: {len(payload)} bytes")
        else:
            print(f"Text message received: {payload.decode('utf8')}")
        await self.sendMessage(payload, isBinary)

    def onClose(self, wasClean, code, reason):
        print(f"WebSocket connection closed: {reason}")

if __name__ == '__main__':
    import asyncio
    factory = WebSocketServerFactory("ws://127.0.0.1:9000")
    factory.protocol = MyServerProtocol

    loop = asyncio.get_event_loop()
    coro = loop.create_server(factory, '0.0.0.0', 9000)
    server = loop.run_until_complete(coro)

    try:
        loop.run_forever()
    except KeyboardInterrupt:
        pass
    finally:
        server.close()
        loop.close()