Get node attributes when render SVG? about viz-js

[mdaines]

You should be able to get node attributes using the DOM after inserting the generated SVG into the document. To make this more convenient, add "id" attributes to the nodes you create.

Given this graph:

digraph g {
a -> b;
a[id="a"];
}

After inserting the SVG into the document, you can say something like this to return the stroke color for the ellipse shape in the node "a":

document.querySelector("#a ellipse").getAttribute("stroke")