Kline for the last X intervals?

Websocket
1

Hi,

I’m using WebSocket to retrieve in real time Kline for a given Symbol, this way:

webSocket = async () => {
	const instrument = "BTCUSDT";
	const interval = "15m";

	const ws = new WebSocket("wss://stream.binance.com:9443/ws/" + instrument.toLowerCase() + "@kline_" + interval);
	ws.on('message', function incoming(response) {
		let data = JSON.parse(response);
		let instrumentName = data.k.s;
		let time = moment(data.k.t).format('YYYY-MM-DD HH:mm:ss');
		let closeValue = data.k.c

		console.log(time + " - " + instrumentName + " - " + closeValue);

	});
}

It works nice, but return only the “last” 15 min step. What if I need the last 12’s 15min? i.e. the Kline of the last hour (one for each interval).

Is it possible with WebSocket?

Thanks

2

Restful kline endpoint is what you are looking for.

3

It can only take one symbol at time.
If I need all it will take long time to download them.

Also rest are very limited on ip request…

4

Tried now with REST API without any ms interval.
It tooks 4 minutes for 650 symbols… :open_mouth:

5

If you wish to download historical klines, then you should check this gem:

https://data.binance.vision

6

Uhm… not sure how this would help.

Daily is the previous day right? So if I need klines of last hour (and update from that point with stream), I won’t get any data :frowning:

Can’t get “Daily” and “Current day”? Or at least last 24h?

I mean, I can (today, 2022/06/30) only do:
https://data.binance.vision/data/spot/daily/klines/BTCUSDT/1h/BTCUSDT-1h-2022-06-29.zip
https://data.binance.vision/data/spot/monthly/klines/BTCUSDT/1h/BTCUSDT-1h-2022-05.zip

So not data of today… which is useless…

7

then you will need to download by yourself from the restful endpoints.