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Posted to dev@sling.apache.org by "Adrian Kozma (Jira)" <ji...@apache.org> on 2020/10/13 14:20:00 UTC
[jira] [Created] (SLING-9819) Add support for using Interface type
Adrian Kozma created SLING-9819:
-----------------------------------
Summary: Add support for using Interface type
Key: SLING-9819
URL: https://issues.apache.org/jira/browse/SLING-9819
Project: Sling
Issue Type: New Feature
Components: GraphQL
Affects Versions: GraphQL Core 0.0.8
Reporter: Adrian Kozma
(i) The current implementation of *sling-org-apache-sling-graphql-core* is not supporting the *Interface* type, however there's a way to implement it.
The basis for supporting type resolvers has been already added by [0]
The support for *Interface* types could be added by extending the buildWiring() method [1] adding the wiring for `InterfaceTypeDefinition.class` definitions as well.
Schema definition supporting Interface types:
{code:java}
# This directive to maps types
directive @resolver(
name : String,
options : String = "",
source : String = ""
) on UNION | INTERFACE
# GraphQL Schema used for our tests
type Query {
# Test union query
unionQuery: CharactersAsUnion @fetcher(name:"character/fetcher")
# Test interface query
interfaceQuery: CharactersAsInterface @fetcher(name:"character/fetcher")
}
interface CharacterInterface @resolver(name:"character/resolver" source:"CharacterInterface") {
id: ID!
}
union CharacterUnion @resolver(name:"character/resolver" source:"CharacterUnion") = Human | Droid
type CharactersAsUnion {
items: [CharacterUnion]
}
type CharactersAsInterface {
items: [CharacterInterface]
}{code}
[0] https://issues.apache.org/jira/browse/SLING-9796
[1] [https://github.com/apache/sling-org-apache-sling-graphql-core/blob/master/src/main/java/org/apache/sling/graphql/core/engine/DefaultQueryExecutor.java#L169]
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