Serialize and deserialize strings representing json from Ontology to display in Workshop

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,
1

I store a key-value, json-like data structure in one property of my Object type in my Ontology.
I want a Workshop application to read one value of this json and display it in a given widget (e.g. markdown widget) for editing.
What is my property is of type string.

How can I extract this value ?

2

Here is an example in Typescript v1

import { Function, OntologyEditFunction, Integer } from "@foundry/functions-api";

interface MyCustomType {
  a: string;
  b: Integer;
}

export class MyFunctions {

    @Function()
    public myFunctionReturnStruct(): MyCustomType {
        // TODO: read from the ontology Object you need
        // TODO: Read the string property containing the json
        // TODO: Parse json into datastructure of your choice

         return {"a": "test", "b": 42};
    }

You can then in Workshop create a variable of type “struct” which is populated via the function

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You can then create a variable from the struct

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You can then re-serialize the other way by passing the different variables as input of a function, that will serialize it in a json-string. You can then use Action to edit an Ontology object with this string.