import { Link, NavLink, Outlet, useLoaderData, useNavigation, useSubmit, } from 'react-router-dom' import { useDebounce } from 'rooks' import { queryOptions, useIsFetching, useSuspenseQuery, } from '@tanstack/react-query' import { getContacts } from '../contacts' import type { QueryClient } from '@tanstack/react-query' 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) => async ({ request }: LoaderFunctionArgs) => { const url = new URL(request.url) const q = url.searchParams.get('q') ?? '' await queryClient.ensureQueryData(contactListQuery(q)) return { q } } export default function Root() { const { q } = useLoaderData() as Awaited< ReturnType> > const { data: contacts } = useSuspenseQuery(contactListQuery(q)) const searching = useIsFetching({ queryKey: ['contacts', 'list'] }) > 0 const navigation = useNavigation() const submit = useSubmit() const debouncedSubmit = useDebounce(submit, 500) return ( <>

React Router Contacts

{contacts.length ? (

isActive ? 'active' : isPending ? 'pending' : '' } > {contact.first || contact.last ? ( <> {contact.first} {contact.last} ) : ( No Name )}{' '} {contact.favorite && ★}

) : (

No contacts

)}

) }