import gql from 'graphql-tag' export const typeDefs = gql` extend type Query { isLoggedIn: Boolean! } ` const LOCAL_STATE_QUERY = gql` query { menuOpen @client } ` const TOGGLE_MENU_MUTATION = gql` mutation { toggleMenu @client } ` export const resolvers = { Mutation: { toggleMenu(_, variables, {chache}) { const {menuOpen} = cache.readQuery({ query: LOCAL_STATE_QUERY }) const data = { data: {menuOpen: !menuOpen} } cache.writeData(data) return data } } }