juniper_interface_issue

Reproduction repository for juniper issue

The repository implements the Node interface for both Ship and Faction and there are 3 queries node, ship and faction. The Faction model only implements the id resolver for Node but Ship model implements the id resolver for both Node and self.

In the schema result Faction doesn't have id definition so if you try to query with:

query {
    faction {
        name
    }
}

You only can query the name because id doesn't exist in this case (because doesn't implement id for self) but you can have the id if you query by:

query {
    factionNode: node(id: "asc-FactionNode") {
        id
        ...on Faction {
        name
        }
    }
}

For Ship it is diferent because Ship implements id for self so you can do:

query {
	shipNode: node(id: "asc-ShipNode") {
        id
        ...on Ship {
            name
        }
    }
    ship {
        id,
        name
    }
}

The problem here is the result that the id from node come from the Node implementation and ship come from Self implementation.

Expected result

I expect to have an implementation like Faction and you can retrieve the id in any query that uses Faction not just when it is used throw Node.

Run server

Run cargo run in the root directory