Foundations for pushing notifications to WebSocket clients and receiving commands from them

PublishedJune 17, 2021

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Foundations for pushing notifications to WebSocket clients and receiving commands from them

Amir Eldor

Part of seriesMy Single Player/co-op Online Persistent Universe 4X Space Game

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My Single Player/co-op Online Persistent Universe 4X Space Game

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Amir Eldor's (Game)Dev Blog

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# start_loop is called after successful authentication async def start_loop(self): sub = self.auth_data["sub"] try: listener = self.listener(self.websocket) poster = self.poster(self.websocket) await gather(listener, poster) # from the asyncio module except WebSocketDisconnect: logger.info(f"{sub} disconnected, bye") self.disconnect()

async def listener(self, websocket: WebSocket): sub = self.auth_data["sub"] while True: try: data = await websocket.receive_json() command = data["command"] except JSONDecodeError: await self.websocket.send_text("JSON. JSON please") logger.warning(f"{sub} sent a bad JSON in request, very suspicious!") continue except KeyError: command = None await self.websocket.send_json( ok_response(None, "thank you", command=command) )

async def poster(self, websocket: WebSocket): while True: await sleep(5.0) # TODO: await an Event from some Events Queue await websocket.send_json( ok_response(MessageType.Unknown, "Jamaica. Let's go to Jamaica.") )

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My Single Player/co-op Online Persistent Universe 4X Space Game

Serving and communicating between two frontend apps proxied under the same address locally

More from this blog