Am Apollo Link for converting `ISO8601DateTime`s in graphql to `Date` objects

apolloScalarsLink.ts

import { withScalars } from 'apollo-link-scalars'
import { buildClientSchema, IntrospectionQuery } from 'graphql'

import introspectionResult from '../graphql/schema.json'

const typesMap = {
  ISO8601DateTime: {
    serialize: (parsed: any) => parsed && parsed.toISOString(),
    parseValue: (raw: any) => raw && new Date(raw),
  },
}

const schema = buildClientSchema(
  (introspectionResult as unknown) as IntrospectionQuery
)

const scalarsLink = withScalars({
  schema,
  typesMap,
})

export default scalarsLink