# server_simple.py from aiohttp import web async def handle(request): name = request.match_info.get("name", "Anonymous") text = "Hello, " + name return web.Response(text=text) async def wshandle(request): ws = web.WebSocketResponse() await ws.prepare(request) async for msg in ws: if msg.type == web.WSMsgType.text: await ws.send_str(f"Hello, {msg.data}") elif msg.type == web.WSMsgType.binary: await ws.send_bytes(msg.data) elif msg.type == web.WSMsgType.close: break return ws app = web.Application() app.add_routes( [web.get("/", handle), web.get("/echo", wshandle), web.get("/{name}", handle)] ) web.run_app(app)