GraphQL 查询 - 如何在不同类型上重用内联片段字段

Question

I have a working graphQL query which looks something like this

query( $ownerId: ID!){
    getPets(ownerId:$ownerId){
        id,
        ownerDescription
    ...on Dog {
            id
            name
        }
    ...on Cat {
            id
            name

        }
    }
}

What I want (but do not know how to achieve) is following

query( $ownerId: ID!){
    getPets(ownerId:$ownerId){
        id,
        ownerDescription
    ...on (Dog | Cat) {
            id
            name
        }
}

Is it even possible to reuse fields, in a way I want?

I have no control over the schema, so I hope to find a solution that can be implemented in the same place, where I do query.

Answer 1

It depends on the schema. GraphQL supports interface inheritance. So both Dog and Cat could inherit from, say Pet with the properties id and name . In that scenario you could refer the the parent instead

   ... on Pet {
     id
     name
   }