It there any way to set/get data in konva object?
Just like jquery use the method 'data'
to set and get info,eg: $('#abc').data('id','123')
!
You can use custom attributes. Just make sure they don't overlap with built-in properties.
https://konvajs.org/api/Konva.Node.html#setAttr
https://konvajs.org/api/Konva.Node.html#getAttr
// set
shape.setAttr('someData', 0);
// get
shape.getAttr('someData');