How to use a "Jsonpath" to get or set a jsonvalue in a complex Json

DEV REST Insight
1

Hello.
In Delphi system.json we have the"System.JSON.TJSONObject.FindValue" function
to get a value from a "deep" object.

function FindValue(const APath: string): TJSONValue; override;

How can I do that in the Web Core environment?
like: v:=TJsonobject.FindValue('$root.prices[2].EUR');

Thank you for your support