How To Implement GraphQL Scalars The Native Way?

[KyBerry]

Is it possible to add GraphQL Scalars the native way? Like if I wanted to add a lastCheckOut field to Book with a type of DateTime?

// schema.ts (the native way)

import {
  GraphQLInt,
  GraphQLList,
  GraphQLObjectType,
  GraphQLSchema,
  GraphQLString,
} from 'graphql';

import { author, books, getAuthors, getBooks } from './bookstore';

const bookType = new GraphQLObjectType({
  name: 'Book',
  fields: () => ({
    id: {
      type: GraphQLInt,
    },
    title: {
      type: GraphQLString,
    },
    authorId: {
      type: GraphQLInt,
    },
    author: {
      type: authorType,
      resolve: author,
    },
  }),
});

const authorType = new GraphQLObjectType({
  name: 'Author',
  fields: () => ({
    id: {
      type: GraphQLInt,
    },
    name: {
      type: GraphQLString,
    },
    books: {
      type: new GraphQLList(bookType),
      resolve: books,
    },    
  }),
});

export const schema = new GraphQLSchema({
  query: new GraphQLObjectType({
    name: 'Query',
    fields: {
      getBooks: {
        type: new GraphQLList(bookType),
        resolve: getBooks,
      },
      getAuthors: {
        type: new GraphQLList(authorType),
        resolve: getAuthors,
      },
    },
  }),
});

[ardatan]

You can import GraphQLDateTime and use it like GraphQLString

[KyBerry]

I don't know why I was getting a TS error when I tried that last but seems to be working now 😅 Thank you!