Is it possible to have nested union types in TypeGraphQL?

Question

Say I have two union types like so:

import { createUnionType } from "type-graphql";

const InstagramUnion = createUnionType({
  name: "Instagram",
  types: () => [InstagramWidget1, InstagramWidget2] as const,
});

const SpotifyUnion = createUnionType({
  name: "Spotify",
  types: () => [SpotifyWidget1, SpotifyWidget2] as const,
});

Currently, I'm unable to create a union of the above two unions:

const WidgetUnion = createUnionType({
  name: "Widget",
  types: () => [SpotifyUnion, InstagramUnion] as const, // error, not assignable
});

Is it possible to do this? Basically, I need a resultant union that looks like this:

InstagramWidget1 | InstagramWidget2 | SpotifyWidget1 | SpotifyWidget2

Answer 1

No, it's not possible in any GraphQL implementation as it's not supported by GraphQL spec.