Candle streaming updates

[gareth-ib]

Could you please add a demo of a candle or OHLC chart with dynamically updating data?
like ...
https://www.highcharts.com/stock/demo/dynamic-update

but using candles like on

https://www.highcharts.com/stock/demo/candlestick

so that any candle size will work along with the data grouping that seems to be required in that style chart.
I've seen posts on here and StackOverflow of people with problems with this, as well as myself on a past project.

thanks

[rafalS]

Hi, gareth-ib!

Are you looking for something like this? https://jsfiddle.net/BlackLabel/uparh9xo/

Best regards

[gareth-ib]

hey Rafal S,

not exactly.. cuz that is just appending to the chart. As opposed to in a real streaming scenario, the latest 1 minute candle would be getting multiple updates from activity during that minute, then eventually a new minute would come and need to add a new candle. The problem is updating a candle as opposed to only adding candles.

So to clarify.. by "update data" I do not mean the same as adding data.

thanks

[rafalS]

gareth-ib,

Sorry but I don't quite understand the idea of updating your data and candles. You can do whatever you want with data - you can add new points or you can update last points and I can show you how to do both - but you would need to give me some sample data and explain precisely how you would like it to work.

Kind regards

[gareth-ib]

yes I want to update data. The "AAPL" data feed would be fine. Just like how all trading sites work, for instance:
https://pro.coinbase.com/trade/ETH-USD

if you are zoomed to the 1minute candles... you'll see that 1 minute candle change shape during that 1 minute of time as transactions occur and expand the range of values for that candle.
The same thing happens at whatever level of zoom you are at

or like the problem this person was having: https://stackoverflow.com/questions/410 ... art-points

make sense? Thanks

[rafalS]

So you want to add a new point every minute so new candle appears but during that minute low and high values of our candle might change so you want to update candle to show changes, for example, every 6 seconds (10 times for one candle)?

[guptamohit]

Hello,

We are also facing problem in same.
Can you explain how live candlestick streaming works with it.
Open high low close values will keep changing

Need example in Angular please

http://jsfiddle.net/m2P5a/ is similar example but its in javascript. Can some one give live demo in angular.

So we want to update existing candle open high low close till a new time candle is received

[sebastian.h]

Hi,
Thanks for contacting us with your question!

I try to create a simple template in Angular for type candlestick, but I have a type errors.

Here is example from our angular wrapper with how to resolve this error:
https://stackblitz.com/edit/highcharts- ... n-type-yyy

Angular simple template chart type candlestick:
https://stackblitz.com/edit/highcharts- ... -mi-sa3rze

API References:
https://api.highcharts.com/highstock/se ... stick.data
https://github.com/highcharts/highcharts-angular

If you have any problem with the implementation, I will help you.
Best regards.

[guptamohit]

Hello,
You have not got my question Right

1> I want to know an angular example on how to create Candlestick chart with Live streaming data.
It means that last candle will keep changing with new values.

I already know hoe to implement candlestick in angular, main thing is how to use Remove Point and Add Point methods to remove and add candles dynamically in Angular wrapper of highcharts

[sebastian.h]

Hi,

I prepared a demo with the same example as in your demo. The basis was a simplified example with the candlestick in Angular 8.
But I'm not sure why on my stackblitz this solution doesn't work, if you find out let me know

Live demo in Angular with updating candlestick series each second:
https://codesandbox.io/s/angular-forked-qwq11

Best regards.