const fullName = ({ parent: { firstName, lastName } }) =>

`${firstName} ${lastName}`;

async function todoTitles({ graphql }) {

const results = await graphql("{ queryTodo { title } }");

return results.data.queryTodo.map((t) => t.title);

}

self.addGraphQLResolvers({

"User.fullName": fullName,

"Query.todoTitles": todoTitles,

});

async function reallyComplexDql({ parents, dql }) {

const ids = parents.map((p) => p.id);

const someComplexResults = await dql.query(

`really-complex-query-here with ${ids}`

);

return parents.map((parent) => someComplexResults[parent.id]);

}

self.addMultiParentGraphQLResolvers({

"User.reallyComplexProperty": reallyComplexDql,

});