Typescript convert JSON to array of JSON

Question

{
    "Id": null,
    "productType": {
        "productname": "abc",
        "productPrice": ""
    }
 }

How to convert above JSON to array of Product?

{
    "Id": null,
    "product": [{
        "productType": {
            "productname": "abc",
            "productPrice": ""
        }
    }]
}

Answer 1

Is this actually a TS question? Not really sure what's really being asked, here.

But if by "how to convert" you mean as a TS type:

original

type ProductType = { productName: string, productPrice: string }
type Product = { id: string, productType: ProductType }

after

type X = { id: string, product: ProductType[] }