Function contactListQuery

examples/react/react-router/src/routes/root.tsx:19–23

(q?: string)

import type { LoaderFunctionArgs } from 'react-router-dom'

const contactListQuery = (q?: string) =>
  queryOptions({
    queryKey: ['contacts', 'list', q ?? 'all'],
    queryFn: () => getContacts(q),
  })

export const loader =
  (queryClient: QueryClient) =>