fiducioso-karthikayan / vega5-test

Check vega5 compatibility in synchronous chart rendering

This stub is used for experimenting the possibility of vega chart view to return svg synchronously.

Goal

To check for the possibility of synchronous chart rendering in vega 5

Problem

We want the chart to be returned instantly rather than resolving promise in order to append it to html with help of parchment. But currently vega provides promises as a way of rendering in server side.

Run

npm install
npm test

Usage

• try using wait.for package. It helps in converting callbacks to synchronous and hence Promise from view.toSVG() to be converted to callback before using wait.for.
• make use of util.callbackify to convert promise or asyn functions to callbacks