if i just subscrbe some topics like aggTrade, how can i know if binance is in maintenance state ?
You’ll stop getting any WebSocket updates, at this time your code should check if it’s expected or not according to Update Speed in the API documentation and use of GET /api/v3/exchangeInfo to check if the symbol you’ve subscribed have "status": "TRADING"
可是我什么时候调用这个接口合适呢？我要不间断的调用才能比较实时获取状态，因为没有地方能推送给我