I have a problem while doing testing in SIT forward,
this forward is using old version of frontend and new version backend.

The structure of schema type is changing like this:
old backend:

type Product {
    productName: String
    productType: String
    prices: PriceList
}

type PriceList {
    id: String
    priceDate: String
    amount: Float
}

While in the new backend:

type Product {
    productName: String
    productType: String
    prices: PriceList
}

type PriceList {
    offset: Int
    limit: Int
    amount: Int
    items: [Price]
}

type Price {
    id: String
    priceDate: String
    currentPrice: Float
}

Here’s the query:

productDetail(productCode: String!, filter: ProductFilter):Product!

I’ve tried to use union in GraphQL, here’s union that i try to create:

union PricesUnion = [Price] | PriceList

when filter is not provided while querying, i should return array of price without pagination. but i can’t use array of Price in union, based on docs it’s only work when the type is object.

Is this possible to do that? please give me advice. thank you.