Constructing a list of interfaces/unions in Dgraph

[amaster507 (Anthony Master)]

I think this illustrates how mutations with unions will work:

Union types in GraphQL

Motivation Support union types in GraphQL as specified in the GraphQL spec. User Impact Users will now be able to able to use unions with our GraphQL. It will enhance the user experience. Implementation Introduction As per GraphQL spec: GraphQL Unions represent an object that could be one of a list of GraphQL Object types, but provides for no guaranteed fields between those types. So no fields may be queried on this type without the use of type refining fragments or inline fragments. …