[Feature] Allow generating chart images on serverside. (node.js)

[itzTheMeow]

Feature Description

Currently the library only works in the browser. It would be cool if the library could be used to generate a static chart image in nodejs too.

To Do

maybe a separate function to generate an image, with parameters for screen height/width, what timeframe to show on the chart, zoom level, and the data to show on the chart

[liihuu]

It's too difficult to use some browser specific APIs.

[chaitanyabd]

Using puppeter may be an option for this. Recently used it for generating server side graphs and saving to image.

It's basically the same as client side coding so this isn't really an issue klinecharts team needs to bother with.

[itzTheMeow]

It works, and that's my solution currently, however puppeteer/chromium is very heavy on both disk space and resource usage just for a chart image.