watchBookTicker() feature request

[L1nkus]

Most exchanges have a 'bookTicker' websocket endpoint, with real-time best bids and asks.

Ccxt has watchTicker(), which uses 'ticker' and not 'bookTicker' endpoints, and this generally updates very slowly, like every 1s, vs bookTicker is real-time.

Is watchBookTicker() on a todo list?

[pcriadoperez]

Hi @L1nkus , for exchanges that offer bookTicker we implement it inside watchTicker() as an option. So for example in bybit you can set the option `this.options['spot']['watchTickerTopic'] = 'bookticker'

Was there any exchange you were specially interested in?

[L1nkus]

Thanks for response @pcriadoperez, I didn't know about options.

Yep, I were interested about huobi, and there doesn't seem to be such an option for it. Huobi has bookticker named as bbo (best bid-ask): https://huobiapi.github.io/docs/spot/v1/en/#best-bid-offer

[pcriadoperez]

Hi @L1nkus , I opened a PR to add the option for huobi (#16198)