clayallsopp

const ResultType = new GraphQLObjectType({
  name : 'Result',
  fields : {
    text : {
      type : new GraphQLNonNull(GraphQLString)
    },
    id : {
      type : new GraphQLNonNull(GraphQLID),
      resolve: resolveWithInstrumentation((result) => {
        return result.id;

clayallsopp

const query = `
  {
    search(text: "cat") {
      text
      id @instrument(tag: "search.id")
    }
  }
`;

clayallsopp

import { GraphQLNonNull, GraphQLString } from 'graphql';
import { DirectiveLocation, GraphQLDirective } from 'graphql/type/directives';

const InstrumentDirective = new GraphQLDirective({
  name: 'instrument',
  description:
    'Instrument the time it takes to resolve the field',
  locations: [
    DirectiveLocation.FIELD,
  ],

clayallsopp

export default Relay.createContainer(StarWarsApp, {
  fragments: {
    factions: () => Relay.QL`
      fragment on Faction @relay(plural: true) {
        id,
        factionId,
        name,
        ships(first: 10) {
          edges {
            node {

clayallsopp

fragment on User @directiveBehavior {
  id
}

clayallsopp

query myQuery($someTest: Boolean) {
  experimentalField @skip(if: $someTest)
}

clayallsopp

const UserType = new GraphQLObjectType({
  name : 'User',
  interfaces: [SearchableType],
  fields : {
    // ...
  },
  isTypeOf: data => !!data.username;
});

clayallsopp

const UserType = new GraphQLObjectType({
  name : 'User',
  interfaces: [SearchableType],
  fields : {
    username : {
      type : GraphQLString
    },
    searchPreviewText : {
      type : GraphQLString,
      resolve(data) {

clayallsopp

const schema = new GraphQLSchema({
  types: [MovieType, BookType, UserType, SearchableType],
  query: new GraphQLObjectType({
    // ...
  })
});

clayallsopp

const SearchableType = new GraphQLInterfaceType({
  name: 'Searchable',
  fields: {
    searchPreviewText: { type: GraphQLString }
  },
  resolveType: resolveType
});