rkudryashov / graphql-java-federation Goto Github PK

Service B:
type TypeB {
... // attributes of TypeB

}

type TypeA @key(fields: "id { uid }") @extends {
id: TypeAId ! @external
}

type TypeAId @extends {
uid: ID! @external
}

Service A:

type TypeA @key(fields: "id { uid }") {
id: TypeAId!
name: String
}

type TypeAId @key(fields: "uid"){
uid: ID!
externalIds: [TypeAIdExternalId] //other fields ..
}

with above schema in the , in a federated service -Service A. where the TypeA and TypeAId GraphQL type are defined when the Federated Entity Resolver tries to get an Object of TypeA with TypeAId , it is not able to resolve the ID types , since the ID types are only expected to be simple keys and a Key field of type id { uid } is not supported

In io.gqljf.federation.FederatedSchemaBuilder#getFederatedEntityId:
final String idValue = (String) representation.get(idFieldName); (Line 154)

The support needs to be added to lookup the Representation map for : id { uid } by lookup first by key "id" and then in a second level map by "uid"

My GraphQL Service follows the Global Object Identification Specification. We provide an interface called Node. That interface must include exactly one field, called id that returns a non‐null ID.

How does the library take care of implementing services resolving the Node interface and every concrete type that implements Node?