File: kitchen-sink.md | Updated: 11/15/2025
Search...
+ K
Auto
Docs Examples GitHub Contributors
Docs Examples GitHub Contributors
Docs Examples GitHub Contributors
Docs Examples Github Contributors
Docs Examples Github Contributors
Docs Examples Github Contributors
Docs Examples Github Contributors
Docs Examples Github Contributors
Maintainers Partners Support Learn StatsBETA Discord Merch Blog GitHub Ethos Brand Guide
Documentation
Framework
Solid
Version
Latest
Search...
+ K
Menu
Getting Started
Installation Guides
Routing
Guides
API
ESLint
Router Examples
Framework
Solid
Version
Latest
Menu
Getting Started
Installation Guides
Routing
Guides
API
ESLint
Router Examples
Solid Example: Kitchen Sink
=======================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================
Code ExplorerCode
Interactive SandboxSandbox
.vscode
src
Expensive.tsx
main.tsx
mockTodos.ts
styles.css
useMutation.tsx
utils.tsx
.gitignore
README.md
index.html
package.json
postcss.config.mjs
tsconfig.json
vite.config.js
tsx
/* eslint-disable @typescript-eslint/no-unnecessary-condition */
import { render } from 'solid-js/web'
import {
ErrorComponent,
Link,
MatchRoute,
Outlet,
RouterProvider,
createRootRouteWithContext,
createRoute,
createRouter,
lazyRouteComponent,
redirect,
retainSearchParams,
useNavigate,
useRouter,
useRouterState,
useSearch,
} from '@tanstack/solid-router'
import { TanStackRouterDevtools } from '@tanstack/solid-router-devtools'
import {
createEffect,
createMemo,
createRenderEffect,
createSignal,
on,
} from 'solid-js'
import { z } from 'zod'
import {
fetchInvoiceById,
fetchInvoices,
fetchUserById,
fetchUsers,
patchInvoice,
postInvoice,
} from './mockTodos'
import { useMutation } from './useMutation'
import type { Invoice } from './mockTodos'
import './styles.css'
//
type UsersViewSortBy = 'name' | 'id' | 'email'
const rootRoute = createRootRouteWithContext<{
auth: Auth
}>()({
component: RootComponent,
})
function RouterSpinner() {
const isLoading = useRouterState({ select: (s) => s.status === 'pending' })
return <Spinner show={isLoading()} />
}
function RootComponent() {
return (
<>
<div class={`min-h-screen flex flex-col`}>
<div class={`flex items-center border-b gap-2`}>
<h1 class={`text-3xl p-2`}>Kitchen Sink</h1>
{/* Show a global spinner when the router is transitioning */}
<div class={`text-3xl`}>
<RouterSpinner />
</div>
</div>
<div class={`flex-1 flex`}>
<div class={`divide-y w-56`}>
{(
[\
['/', 'Home'],\
['/dashboard', 'Dashboard'],\
['/expensive', 'Expensive'],\
['/route-a', 'Pathless Layout A'],\
['/route-b', 'Pathless Layout B'],\
['/profile', 'Profile'],\
...(auth.status === 'loggedOut' ? [['/login', 'Login']] : []),\
] as const
).map(([to, label]) => {
return (
<div>
<Link
to={to}
activeOptions={
{
// If the route points to the root of it's parent,
// make sure it's only active if it's exact
// exact: to === '.',
}
}
preload="intent"
class={`block py-2 px-3 text-blue-700`}
// Make "active" links bold
activeProps={{ class: `font-bold` }}
>
{label}
</Link>
</div>
)
})}
</div>
<div class={`flex-1 border-l`}>
{/* Render our first route match */}
<Outlet />
</div>
</div>
</div>
<TanStackRouterDevtools position="bottom-right" />
</>
)
}
const indexRoute = createRoute({
getParentRoute: () => rootRoute,
path: '/',
component: IndexComponent,
})
function IndexComponent() {
return (
<div class={`p-2`}>
<div class={`text-lg`}>Welcome Home!</div>
<hr class={`my-2`} />
<Link
to={invoiceRoute.to}
params={{
invoiceId: 3,
}}
class={`py-1 px-2 text-xs bg-blue-500 text-white rounded-full`}
>
1 New Invoice
</Link>
<hr class={`my-2`} />
<div class={`max-w-xl`}>
As you navigate around take note of the UX. It should feel
suspense-like, where routes are only rendered once all of their data and
elements are ready.
<hr class={`my-2`} />
To exaggerate async effects, play with the artificial request delay
slider in the bottom-left corner.
<hr class={`my-2`} />
The last 2 sliders determine if link-hover preloading is enabled (and
how long those preloads stick around) and also whether to cache rendered
route data (and for how long). Both of these default to 0 (or off).
</div>
</div>
)
}
const dashboardLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
path: 'dashboard',
component: DashboardLayoutComponent,
})
function DashboardLayoutComponent() {
return (
<>
<div class="flex items-center border-b">
<h2 class="text-xl p-2">Dashboard</h2>
</div>
<div class="flex flex-wrap divide-x">
{(
[\
['/dashboard', 'Summary', true],\
['/dashboard/invoices', 'Invoices'],\
['/dashboard/users', 'Users'],\
] as const
).map(([to, label, exact]) => {
return (
<Link
to={to}
activeOptions={{ exact }}
activeProps={{ class: `font-bold` }}
class="p-2"
>
{label}
</Link>
)
})}
</div>
<hr />
<Outlet />
</>
)
}
const dashboardIndexRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: '/',
loader: () => fetchInvoices(),
component: DashboardIndexComponent,
})
function DashboardIndexComponent() {
const invoices = dashboardIndexRoute.useLoaderData()
return (
<div class="p-2">
<div class="p-2">
Welcome to the dashboard! You have{' '}
<strong>{invoices.length} total invoices</strong>.
</div>
</div>
)
}
const invoicesLayoutRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: 'invoices',
loader: () => fetchInvoices(),
component: InvoicesLayoutComponent,
})
function InvoicesLayoutComponent() {
const invoices = invoicesLayoutRoute.useLoaderData()
return (
<div class="flex-1 flex">
<div class="divide-y w-48">
{invoices().map((invoice) => {
return (
<div>
<Link
to="/dashboard/invoices/$invoiceId"
params={{
invoiceId: invoice.id,
}}
preload="intent"
class="block py-2 px-3 text-blue-700"
activeProps={{ class: `font-bold ` }}
>
<pre class="text-sm">
#{invoice.id} - {invoice.title.slice(0, 10)}{' '}
{/* {updateSubmission ? (
<Spinner />
) : ( */}
<MatchRoute
to={invoiceRoute.to}
params={{
invoiceId: invoice.id,
}}
pending
>
{(match) => <Spinner show={!!match} wait="delay-50" />}
</MatchRoute>
{/* )} */}
</pre>
</Link>
</div>
)
})}
</div>
<div class="flex-1 border-l">
<Outlet />
</div>
</div>
)
}
const invoicesIndexRoute = createRoute({
getParentRoute: () => invoicesLayoutRoute,
path: '/',
component: InvoicesIndexComponent,
})
function InvoicesIndexComponent() {
const createInvoiceMutation = useMutation({
fn: postInvoice,
onSuccess: () => router.invalidate(),
})
return (
<>
<div class="p-2">
<form
onSubmit={(event) => {
event.preventDefault()
event.stopPropagation()
const formData = new FormData(event.target as HTMLFormElement)
createInvoiceMutation.mutate({
title: formData.get('title') as string,
body: formData.get('body') as string,
})
}}
class="space-y-2"
>
<div>Create a new Invoice:</div>
<InvoiceFields invoice={{} as Invoice} />
<div>
<button
class="bg-blue-500 rounded-sm p-2 uppercase text-white font-black disabled:opacity-50"
disabled={createInvoiceMutation.status === 'pending'}
>
{createInvoiceMutation.status === 'pending' ? (
<>
Creating <Spinner />
</>
) : (
'Create'
)}
</button>
</div>
{createInvoiceMutation.status === 'success' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-green-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Created!
</div>
) : createInvoiceMutation.status === 'error' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-red-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Failed to create.
</div>
) : null}
</form>
</div>
</>
)
}
const invoiceRoute = createRoute({
getParentRoute: () => invoicesLayoutRoute,
path: '$invoiceId',
params: {
parse: (params) => ({
invoiceId: z.number().int().parse(Number(params.invoiceId)),
}),
stringify: ({ invoiceId }) => ({ invoiceId: `${invoiceId}` }),
},
validateSearch: (search) =>
z
.object({
showNotes: z.boolean().optional(),
notes: z.string().optional(),
})
.parse(search),
loader: ({ params: { invoiceId } }) => fetchInvoiceById(invoiceId),
component: InvoiceComponent,
pendingComponent: () => <Spinner />,
})
function InvoiceComponent() {
const search = invoiceRoute.useSearch()
const navigate = useNavigate({ from: invoiceRoute.fullPath })
const invoice = invoiceRoute.useLoaderData()
const updateInvoiceMutation = useMutation({
fn: patchInvoice,
onSuccess: () => router.invalidate(),
})
const [notes, setNotes] = createSignal(search().notes ?? '')
createEffect(
on(notes, () => {
navigate({
search: (old) => ({
...old,
notes: notes() ? notes() : undefined,
}),
params: true,
replace: true,
})
}),
)
return (
<form
onSubmit={(event) => {
event.preventDefault()
event.stopPropagation()
const formData = new FormData(event.target as HTMLFormElement)
updateInvoiceMutation.mutate({
id: invoice().id,
title: formData.get('title') as string,
body: formData.get('body') as string,
})
}}
class="p-2 space-y-2"
>
<InvoiceFields
invoice={invoice()}
disabled={updateInvoiceMutation.status === 'pending'}
/>
<div>
<Link
search={(old) => ({
...old,
showNotes: old.showNotes ? undefined : true,
})}
class="text-blue-700"
from={invoiceRoute.fullPath}
params={true}
>
{search().showNotes ? 'Close Notes' : 'Show Notes'}{' '}
</Link>
{search().showNotes ? (
<>
<div>
<div class="h-2" />
<textarea
value={notes()}
onChange={(e) => {
setNotes(e.target.value)
}}
rows={5}
class="shadow-sm w-full p-2 rounded-sm"
placeholder="Write some notes here..."
/>
<div class="italic text-xs">
Notes are stored in the URL. Try copying the URL into a new tab!
</div>
</div>
</>
) : null}
</div>
<div>
<button
class="bg-blue-500 rounded-sm p-2 uppercase text-white font-black disabled:opacity-50"
disabled={updateInvoiceMutation.status === 'pending'}
>
Save
</button>
</div>
{updateInvoiceMutation.variables?.id === invoice().id ? (
<div>
{updateInvoiceMutation.status === 'success' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-green-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Saved!
</div>
) : updateInvoiceMutation.status === 'error' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-red-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Failed to save.
</div>
) : null}
</div>
) : null}
</form>
)
}
const usersLayoutRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: 'users',
validateSearch: z.object({
usersView: z
.object({
sortBy: z.enum(['name', 'id', 'email']).optional(),
filterBy: z.string().optional(),
})
.optional(),
}).parse,
search: {
// Retain the usersView search param while navigating
// within or to this route (or it's children!)
middlewares: [retainSearchParams(['usersView'])],
},
loaderDeps: ({ search: { usersView } }) => ({
filterBy: usersView?.filterBy,
sortBy: usersView?.sortBy ?? 'name',
}),
loader: ({ deps }) => fetchUsers(deps),
component: UsersLayoutComponent,
})
function UsersLayoutComponent() {
const navigate = useNavigate({ from: usersLayoutRoute.fullPath })
const search = usersLayoutRoute.useSearch()
const users = usersLayoutRoute.useLoaderData()
const sortBy = search().usersView?.sortBy ?? 'name'
const filterBy = search().usersView?.filterBy
const [filterDraft, setFilterDraft] = createSignal(filterBy ?? '')
createEffect(
on(
() => filterBy,
() => {
setFilterDraft(filterBy ?? '')
},
),
)
const sortedUsers = createMemo(() => {
if (!users) return []
return !sortBy
? users()
: [...users()].sort((a, b) => {
return a[sortBy] > b[sortBy] ? 1 : -1
})
}, [users, sortBy])
const filteredUsers = createMemo(() => {
if (!filterBy) return sortedUsers()
return sortedUsers().filter((user) =>
user.name.toLowerCase().includes(filterBy.toLowerCase()),
)
}, [sortedUsers, filterBy])
const setSortBy = (sortBy: UsersViewSortBy) =>
navigate({
search: (old) => {
return {
...old,
usersView: {
...(old.usersView ?? {}),
sortBy,
},
}
},
replace: true,
})
createEffect(
on(filterDraft, () => {
navigate({
search: (old) => {
return {
...old,
usersView: {
...old.usersView,
filterBy: filterDraft() || undefined,
},
}
},
replace: true,
})
}),
)
return (
<div class="flex-1 flex">
<div class="divide-y">
<div class="py-2 px-3 flex gap-2 items-center bg-gray-100 dark:bg-gray-800">
<div>Sort By:</div>
<select
value={sortBy}
onChange={(e) => setSortBy(e.target.value as UsersViewSortBy)}
class="flex-1 border p-1 px-2 rounded-sm"
>
{['name', 'id', 'email'].map((d) => {
return <option value={d} children={d} />
})}
</select>
</div>
<div class="py-2 px-3 flex gap-2 items-center bg-gray-100 dark:bg-gray-800">
<div>Filter By:</div>
<input
value={filterDraft()}
onChange={(e) => setFilterDraft(e.target.value)}
placeholder="Search Names..."
class="min-w-0 flex-1 border p-1 px-2 rounded-sm"
/>
</div>
{filteredUsers().map((user) => {
return (
<div>
<Link
to="/dashboard/users/user"
search={{
userId: user.id,
}}
class="block py-2 px-3 text-blue-700"
activeProps={{ class: `font-bold` }}
>
<pre class="text-sm">
{user.name}{' '}
<MatchRoute
to={userRoute.to}
search={{
userId: user.id,
}}
pending
>
{(match) => <Spinner show={!!match} wait="delay-50" />}
</MatchRoute>
</pre>
</Link>
</div>
)
})}
</div>
<div class="flex-initial border-l">
<Outlet />
</div>
</div>
)
}
const usersIndexRoute = createRoute({
getParentRoute: () => usersLayoutRoute,
path: '/',
component: UsersIndexComponent,
})
function UsersIndexComponent() {
return (
<div class="p-2 space-y-2">
<p>
Normally, setting default search parameters would either need to be done
manually in every link to a page, or as a side-effect (not a great
experience).
</p>
<p>
Instead, we can use <strong>search filters</strong> to provide defaults
or even persist search params for links to routes (and child routes).
</p>
<p>
A good example of this is the sorting and filtering of the users list.
In a traditional router, both would be lost while navigating around
individual users or even changing each sort/filter option unless each
state was manually passed from the current route into each new link we
created (that's a lot of tedious and error-prone work). With TanStack
router and search filters, they are persisted with little effort.
</p>
</div>
)
}
const userRoute = createRoute({
getParentRoute: () => usersLayoutRoute,
path: 'user',
validateSearch: z.object({
userId: z.number(),
}),
loaderDeps: ({ search: { userId } }) => ({
userId,
}),
loader: ({ deps: { userId } }) => fetchUserById(userId),
component: UserComponent,
})
function UserComponent() {
const user = userRoute.useLoaderData()
return (
<>
<h4 class="p-2 font-bold">{user()?.name}</h4>
<pre class="text-sm whitespace-pre-wrap">
{JSON.stringify(user(), null, 2)}
</pre>
</>
)
}
const expensiveRoute = createRoute({
getParentRoute: () => rootRoute,
// Your elements can be asynchronous, which means you can code-split!
path: 'expensive',
component: lazyRouteComponent(() => import('./Expensive')),
})
const authPathlessLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
id: 'auth',
// Before loading, authenticate the user via our auth context
// This will also happen during prefetching (e.g. hovering over links, etc)
beforeLoad: ({ context, location }) => {
// If the user is logged out, redirect them to the login page
if (context.auth.status === 'loggedOut') {
console.log(location)
throw redirect({
to: loginRoute.to,
search: {
// Use the current location to power a redirect after login
// (Do not use `router.state.resolvedLocation` as it can
// potentially lag behind the actual current location)
redirect: location.href,
},
})
}
// Otherwise, return the user in context
return {
username: auth.username,
}
},
})
const profileRoute = createRoute({
getParentRoute: () => authPathlessLayoutRoute,
path: 'profile',
component: ProfileComponent,
})
function ProfileComponent() {
const routeContext = profileRoute.useRouteContext()
return (
<div class="p-2 space-y-2">
<div>
Username:<strong>{routeContext().username}</strong>
</div>
<button
class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm"
onClick={() => {
auth.logout()
router.invalidate()
}}
>
Log out
</button>
</div>
)
}
const loginRoute = createRoute({
getParentRoute: () => rootRoute,
path: 'login',
validateSearch: z.object({
redirect: z.string().optional(),
}),
}).update({
component: LoginComponent,
})
function LoginComponent() {
const router = useRouter()
const routeContext = loginRoute.useRouteContext({
select: ({ auth }) => ({ auth, status: auth.status }),
})
const search = useSearch({ from: loginRoute.fullPath })
const [username, setUsername] = createSignal('')
const onSubmit = (e: SubmitEvent) => {
e.preventDefault()
routeContext().auth.login(username())
router.invalidate()
}
// Ah, the subtle nuances of client side auth. 🙄
createRenderEffect(
on([() => routeContext().status, () => search().redirect], () => {
const redirect = search().redirect
if (routeContext().status === 'loggedIn' && redirect) {
router.history.push(redirect)
}
}),
)
return routeContext().status === 'loggedIn' ? (
<div>
Logged in as <strong>{auth.username}</strong>
<div class="h-2" />
<button
onClick={() => {
auth.logout()
router.invalidate()
}}
class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm"
>
Log out
</button>
<div class="h-2" />
</div>
) : (
<div class="p-2">
<div>You must log in!</div>
<div class="h-2" />
<form onSubmit={onSubmit} class="flex gap-2">
<input
value={username()}
onInput={(e) => setUsername(e.currentTarget.value)}
placeholder="Username"
class="border p-1 px-2 rounded-sm"
/>
<button class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm">
Login
</button>
</form>
</div>
)
}
const pathlessLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
id: 'pathless-layout',
component: PathlessLayoutComponent,
})
function PathlessLayoutComponent() {
return (
<div>
<div>Pathless Layout</div>
<hr />
<Outlet />
</div>
)
}
const pathlessLayoutARoute = createRoute({
getParentRoute: () => pathlessLayoutRoute,
path: 'route-a',
component: PathlessLayoutAComponent,
})
function PathlessLayoutAComponent() {
return (
<div>
<div>I'm A</div>
</div>
)
}
const pathlessLayoutBRoute = createRoute({
getParentRoute: () => pathlessLayoutRoute,
path: 'route-b',
component: PathlessLayoutBComponent,
})
function PathlessLayoutBComponent() {
return (
<div>
<div>I'm B</div>
</div>
)
}
const routeTree = rootRoute.addChildren([\
indexRoute,\
dashboardLayoutRoute.addChildren([\
dashboardIndexRoute,\
invoicesLayoutRoute.addChildren([invoicesIndexRoute, invoiceRoute]),\
usersLayoutRoute.addChildren([usersIndexRoute, userRoute]),\
]),\
expensiveRoute,\
authPathlessLayoutRoute.addChildren([profileRoute]),\
loginRoute,\
pathlessLayoutRoute.addChildren([pathlessLayoutARoute, pathlessLayoutBRoute]),\
])
const router = createRouter({
routeTree,
defaultPendingComponent: () => (
<div class={`p-2 text-2xl`}>
<Spinner />
</div>
),
defaultErrorComponent: ({ error }) => <ErrorComponent error={error} />,
context: {
auth: undefined!, // We'll inject this when we render
},
defaultPreload: 'intent',
scrollRestoration: true,
})
declare module '@tanstack/solid-router' {
interface Register {
router: typeof router
}
}
const auth: Auth = {
status: 'loggedOut',
username: undefined,
login: (username: string) => {
auth.username = username
auth.status = 'loggedIn'
},
logout: () => {
auth.status = 'loggedOut'
auth.username = undefined
},
}
function App() {
// This stuff is just to tweak our sandbox setup in real-time
const [loaderDelay, setLoaderDelay] = useSessionStorage('loaderDelay', 500)
const [pendingMs, setPendingMs] = useSessionStorage('pendingMs', 1000)
const [pendingMinMs, setPendingMinMs] = useSessionStorage('pendingMinMs', 500)
return (
<>
<div class="text-xs fixed w-52 shadow-md shadow-black/20 rounded-sm bottom-2 left-2 bg-white dark:bg-gray-800 bg-opacity-75 border-b flex flex-col gap-1 flex-wrap items-left divide-y">
<div class="p-2 space-y-2">
<div class="flex gap-2">
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(150)
}}
>
Fast
</button>
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(500)
}}
>
Fast 3G
</button>
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(2000)
}}
>
Slow 3G
</button>
</div>
<div>
<div>Loader Delay: {loaderDelay()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={loaderDelay()}
onInput={(e) => setLoaderDelay(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
</div>
<div class="p-2 space-y-2">
<div class="flex gap-2">
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setPendingMs(1000)
setPendingMinMs(500)
}}
>
Reset to Default
</button>
</div>
<div>
<div>defaultPendingMs: {pendingMs()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={pendingMs()}
onInput={(e) => setPendingMs(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
<div>
<div>defaultPendingMinMs: {pendingMinMs()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={pendingMinMs()}
onInput={(e) => setPendingMinMs(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
</div>
</div>
<RouterProvider
router={router}
defaultPreload="intent"
defaultPendingMs={pendingMs()}
defaultPendingMinMs={pendingMinMs()}
context={{
auth,
}}
/>
</>
)
}
function InvoiceFields({
invoice,
disabled,
}: {
invoice: Invoice
disabled?: boolean
}) {
return (
<div class="space-y-2">
<h2 class="font-bold text-lg">
<input
name="title"
value={invoice.title || ''}
placeholder="Invoice Title"
class="border border-opacity-50 rounded-sm p-2 w-full"
disabled={disabled}
/>
</h2>
<div>
<textarea
name="body"
value={invoice.body || ''}
rows={6}
placeholder="Invoice Body..."
class="border border-opacity-50 p-2 rounded-sm w-full"
disabled={disabled}
/>
</div>
</div>
)
}
type Auth = {
login: (username: string) => void
logout: () => void
status: 'loggedOut' | 'loggedIn'
username?: string
}
function Spinner({ show, wait }: { show?: boolean; wait?: `delay-${number}` }) {
return (
<div
class={`inline-block animate-spin px-3 transition ${
(show ?? true)
? `opacity-1 duration-500 ${wait ?? 'delay-300'}`
: 'duration-500 opacity-0 delay-0'
}`}
>
⍥
</div>
)
}
function useSessionStorage<T>(key: string, initialValue: T) {
const [state, setState] = createSignal<T>(
(() => {
const stored = sessionStorage.getItem(key)
return stored ? JSON.parse(stored) : initialValue
})(),
)
createEffect(
on(state, () => {
sessionStorage.setItem(key, JSON.stringify(state()))
}),
)
return [state, setState] as const
}
const rootElement = document.getElementById('app')!
if (!rootElement.innerHTML) {
render(() => <App />, rootElement)
}
/* eslint-disable @typescript-eslint/no-unnecessary-condition */
import { render } from 'solid-js/web'
import {
ErrorComponent,
Link,
MatchRoute,
Outlet,
RouterProvider,
createRootRouteWithContext,
createRoute,
createRouter,
lazyRouteComponent,
redirect,
retainSearchParams,
useNavigate,
useRouter,
useRouterState,
useSearch,
} from '@tanstack/solid-router'
import { TanStackRouterDevtools } from '@tanstack/solid-router-devtools'
import {
createEffect,
createMemo,
createRenderEffect,
createSignal,
on,
} from 'solid-js'
import { z } from 'zod'
import {
fetchInvoiceById,
fetchInvoices,
fetchUserById,
fetchUsers,
patchInvoice,
postInvoice,
} from './mockTodos'
import { useMutation } from './useMutation'
import type { Invoice } from './mockTodos'
import './styles.css'
//
type UsersViewSortBy = 'name' | 'id' | 'email'
const rootRoute = createRootRouteWithContext<{
auth: Auth
}>()({
component: RootComponent,
})
function RouterSpinner() {
const isLoading = useRouterState({ select: (s) => s.status === 'pending' })
return <Spinner show={isLoading()} />
}
function RootComponent() {
return (
<>
<div class={`min-h-screen flex flex-col`}>
<div class={`flex items-center border-b gap-2`}>
<h1 class={`text-3xl p-2`}>Kitchen Sink</h1>
{/* Show a global spinner when the router is transitioning */}
<div class={`text-3xl`}>
<RouterSpinner />
</div>
</div>
<div class={`flex-1 flex`}>
<div class={`divide-y w-56`}>
{(
[\
['/', 'Home'],\
['/dashboard', 'Dashboard'],\
['/expensive', 'Expensive'],\
['/route-a', 'Pathless Layout A'],\
['/route-b', 'Pathless Layout B'],\
['/profile', 'Profile'],\
...(auth.status === 'loggedOut' ? [['/login', 'Login']] : []),\
] as const
).map(([to, label]) => {
return (
<div>
<Link
to={to}
activeOptions={
{
// If the route points to the root of it's parent,
// make sure it's only active if it's exact
// exact: to === '.',
}
}
preload="intent"
class={`block py-2 px-3 text-blue-700`}
// Make "active" links bold
activeProps={{ class: `font-bold` }}
>
{label}
</Link>
</div>
)
})}
</div>
<div class={`flex-1 border-l`}>
{/* Render our first route match */}
<Outlet />
</div>
</div>
</div>
<TanStackRouterDevtools position="bottom-right" />
</>
)
}
const indexRoute = createRoute({
getParentRoute: () => rootRoute,
path: '/',
component: IndexComponent,
})
function IndexComponent() {
return (
<div class={`p-2`}>
<div class={`text-lg`}>Welcome Home!</div>
<hr class={`my-2`} />
<Link
to={invoiceRoute.to}
params={{
invoiceId: 3,
}}
class={`py-1 px-2 text-xs bg-blue-500 text-white rounded-full`}
>
1 New Invoice
</Link>
<hr class={`my-2`} />
<div class={`max-w-xl`}>
As you navigate around take note of the UX. It should feel
suspense-like, where routes are only rendered once all of their data and
elements are ready.
<hr class={`my-2`} />
To exaggerate async effects, play with the artificial request delay
slider in the bottom-left corner.
<hr class={`my-2`} />
The last 2 sliders determine if link-hover preloading is enabled (and
how long those preloads stick around) and also whether to cache rendered
route data (and for how long). Both of these default to 0 (or off).
</div>
</div>
)
}
const dashboardLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
path: 'dashboard',
component: DashboardLayoutComponent,
})
function DashboardLayoutComponent() {
return (
<>
<div class="flex items-center border-b">
<h2 class="text-xl p-2">Dashboard</h2>
</div>
<div class="flex flex-wrap divide-x">
{(
[\
['/dashboard', 'Summary', true],\
['/dashboard/invoices', 'Invoices'],\
['/dashboard/users', 'Users'],\
] as const
).map(([to, label, exact]) => {
return (
<Link
to={to}
activeOptions={{ exact }}
activeProps={{ class: `font-bold` }}
class="p-2"
>
{label}
</Link>
)
})}
</div>
<hr />
<Outlet />
</>
)
}
const dashboardIndexRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: '/',
loader: () => fetchInvoices(),
component: DashboardIndexComponent,
})
function DashboardIndexComponent() {
const invoices = dashboardIndexRoute.useLoaderData()
return (
<div class="p-2">
<div class="p-2">
Welcome to the dashboard! You have{' '}
<strong>{invoices.length} total invoices</strong>.
</div>
</div>
)
}
const invoicesLayoutRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: 'invoices',
loader: () => fetchInvoices(),
component: InvoicesLayoutComponent,
})
function InvoicesLayoutComponent() {
const invoices = invoicesLayoutRoute.useLoaderData()
return (
<div class="flex-1 flex">
<div class="divide-y w-48">
{invoices().map((invoice) => {
return (
<div>
<Link
to="/dashboard/invoices/$invoiceId"
params={{
invoiceId: invoice.id,
}}
preload="intent"
class="block py-2 px-3 text-blue-700"
activeProps={{ class: `font-bold ` }}
>
<pre class="text-sm">
#{invoice.id} - {invoice.title.slice(0, 10)}{' '}
{/* {updateSubmission ? (
<Spinner />
) : ( */}
<MatchRoute
to={invoiceRoute.to}
params={{
invoiceId: invoice.id,
}}
pending
>
{(match) => <Spinner show={!!match} wait="delay-50" />}
</MatchRoute>
{/* )} */}
</pre>
</Link>
</div>
)
})}
</div>
<div class="flex-1 border-l">
<Outlet />
</div>
</div>
)
}
const invoicesIndexRoute = createRoute({
getParentRoute: () => invoicesLayoutRoute,
path: '/',
component: InvoicesIndexComponent,
})
function InvoicesIndexComponent() {
const createInvoiceMutation = useMutation({
fn: postInvoice,
onSuccess: () => router.invalidate(),
})
return (
<>
<div class="p-2">
<form
onSubmit={(event) => {
event.preventDefault()
event.stopPropagation()
const formData = new FormData(event.target as HTMLFormElement)
createInvoiceMutation.mutate({
title: formData.get('title') as string,
body: formData.get('body') as string,
})
}}
class="space-y-2"
>
<div>Create a new Invoice:</div>
<InvoiceFields invoice={{} as Invoice} />
<div>
<button
class="bg-blue-500 rounded-sm p-2 uppercase text-white font-black disabled:opacity-50"
disabled={createInvoiceMutation.status === 'pending'}
>
{createInvoiceMutation.status === 'pending' ? (
<>
Creating <Spinner />
</>
) : (
'Create'
)}
</button>
</div>
{createInvoiceMutation.status === 'success' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-green-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Created!
</div>
) : createInvoiceMutation.status === 'error' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-red-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Failed to create.
</div>
) : null}
</form>
</div>
</>
)
}
const invoiceRoute = createRoute({
getParentRoute: () => invoicesLayoutRoute,
path: '$invoiceId',
params: {
parse: (params) => ({
invoiceId: z.number().int().parse(Number(params.invoiceId)),
}),
stringify: ({ invoiceId }) => ({ invoiceId: `${invoiceId}` }),
},
validateSearch: (search) =>
z
.object({
showNotes: z.boolean().optional(),
notes: z.string().optional(),
})
.parse(search),
loader: ({ params: { invoiceId } }) => fetchInvoiceById(invoiceId),
component: InvoiceComponent,
pendingComponent: () => <Spinner />,
})
function InvoiceComponent() {
const search = invoiceRoute.useSearch()
const navigate = useNavigate({ from: invoiceRoute.fullPath })
const invoice = invoiceRoute.useLoaderData()
const updateInvoiceMutation = useMutation({
fn: patchInvoice,
onSuccess: () => router.invalidate(),
})
const [notes, setNotes] = createSignal(search().notes ?? '')
createEffect(
on(notes, () => {
navigate({
search: (old) => ({
...old,
notes: notes() ? notes() : undefined,
}),
params: true,
replace: true,
})
}),
)
return (
<form
onSubmit={(event) => {
event.preventDefault()
event.stopPropagation()
const formData = new FormData(event.target as HTMLFormElement)
updateInvoiceMutation.mutate({
id: invoice().id,
title: formData.get('title') as string,
body: formData.get('body') as string,
})
}}
class="p-2 space-y-2"
>
<InvoiceFields
invoice={invoice()}
disabled={updateInvoiceMutation.status === 'pending'}
/>
<div>
<Link
search={(old) => ({
...old,
showNotes: old.showNotes ? undefined : true,
})}
class="text-blue-700"
from={invoiceRoute.fullPath}
params={true}
>
{search().showNotes ? 'Close Notes' : 'Show Notes'}{' '}
</Link>
{search().showNotes ? (
<>
<div>
<div class="h-2" />
<textarea
value={notes()}
onChange={(e) => {
setNotes(e.target.value)
}}
rows={5}
class="shadow-sm w-full p-2 rounded-sm"
placeholder="Write some notes here..."
/>
<div class="italic text-xs">
Notes are stored in the URL. Try copying the URL into a new tab!
</div>
</div>
</>
) : null}
</div>
<div>
<button
class="bg-blue-500 rounded-sm p-2 uppercase text-white font-black disabled:opacity-50"
disabled={updateInvoiceMutation.status === 'pending'}
>
Save
</button>
</div>
{updateInvoiceMutation.variables?.id === invoice().id ? (
<div>
{updateInvoiceMutation.status === 'success' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-green-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Saved!
</div>
) : updateInvoiceMutation.status === 'error' ? (
<div class="inline-block px-2 py-1 rounded-sm bg-red-500 text-white animate-bounce [animation-iteration-count:2.5] [animation-duration:.3s]">
Failed to save.
</div>
) : null}
</div>
) : null}
</form>
)
}
const usersLayoutRoute = createRoute({
getParentRoute: () => dashboardLayoutRoute,
path: 'users',
validateSearch: z.object({
usersView: z
.object({
sortBy: z.enum(['name', 'id', 'email']).optional(),
filterBy: z.string().optional(),
})
.optional(),
}).parse,
search: {
// Retain the usersView search param while navigating
// within or to this route (or it's children!)
middlewares: [retainSearchParams(['usersView'])],
},
loaderDeps: ({ search: { usersView } }) => ({
filterBy: usersView?.filterBy,
sortBy: usersView?.sortBy ?? 'name',
}),
loader: ({ deps }) => fetchUsers(deps),
component: UsersLayoutComponent,
})
function UsersLayoutComponent() {
const navigate = useNavigate({ from: usersLayoutRoute.fullPath })
const search = usersLayoutRoute.useSearch()
const users = usersLayoutRoute.useLoaderData()
const sortBy = search().usersView?.sortBy ?? 'name'
const filterBy = search().usersView?.filterBy
const [filterDraft, setFilterDraft] = createSignal(filterBy ?? '')
createEffect(
on(
() => filterBy,
() => {
setFilterDraft(filterBy ?? '')
},
),
)
const sortedUsers = createMemo(() => {
if (!users) return []
return !sortBy
? users()
: [...users()].sort((a, b) => {
return a[sortBy] > b[sortBy] ? 1 : -1
})
}, [users, sortBy])
const filteredUsers = createMemo(() => {
if (!filterBy) return sortedUsers()
return sortedUsers().filter((user) =>
user.name.toLowerCase().includes(filterBy.toLowerCase()),
)
}, [sortedUsers, filterBy])
const setSortBy = (sortBy: UsersViewSortBy) =>
navigate({
search: (old) => {
return {
...old,
usersView: {
...(old.usersView ?? {}),
sortBy,
},
}
},
replace: true,
})
createEffect(
on(filterDraft, () => {
navigate({
search: (old) => {
return {
...old,
usersView: {
...old.usersView,
filterBy: filterDraft() || undefined,
},
}
},
replace: true,
})
}),
)
return (
<div class="flex-1 flex">
<div class="divide-y">
<div class="py-2 px-3 flex gap-2 items-center bg-gray-100 dark:bg-gray-800">
<div>Sort By:</div>
<select
value={sortBy}
onChange={(e) => setSortBy(e.target.value as UsersViewSortBy)}
class="flex-1 border p-1 px-2 rounded-sm"
>
{['name', 'id', 'email'].map((d) => {
return <option value={d} children={d} />
})}
</select>
</div>
<div class="py-2 px-3 flex gap-2 items-center bg-gray-100 dark:bg-gray-800">
<div>Filter By:</div>
<input
value={filterDraft()}
onChange={(e) => setFilterDraft(e.target.value)}
placeholder="Search Names..."
class="min-w-0 flex-1 border p-1 px-2 rounded-sm"
/>
</div>
{filteredUsers().map((user) => {
return (
<div>
<Link
to="/dashboard/users/user"
search={{
userId: user.id,
}}
class="block py-2 px-3 text-blue-700"
activeProps={{ class: `font-bold` }}
>
<pre class="text-sm">
{user.name}{' '}
<MatchRoute
to={userRoute.to}
search={{
userId: user.id,
}}
pending
>
{(match) => <Spinner show={!!match} wait="delay-50" />}
</MatchRoute>
</pre>
</Link>
</div>
)
})}
</div>
<div class="flex-initial border-l">
<Outlet />
</div>
</div>
)
}
const usersIndexRoute = createRoute({
getParentRoute: () => usersLayoutRoute,
path: '/',
component: UsersIndexComponent,
})
function UsersIndexComponent() {
return (
<div class="p-2 space-y-2">
<p>
Normally, setting default search parameters would either need to be done
manually in every link to a page, or as a side-effect (not a great
experience).
</p>
<p>
Instead, we can use <strong>search filters</strong> to provide defaults
or even persist search params for links to routes (and child routes).
</p>
<p>
A good example of this is the sorting and filtering of the users list.
In a traditional router, both would be lost while navigating around
individual users or even changing each sort/filter option unless each
state was manually passed from the current route into each new link we
created (that's a lot of tedious and error-prone work). With TanStack
router and search filters, they are persisted with little effort.
</p>
</div>
)
}
const userRoute = createRoute({
getParentRoute: () => usersLayoutRoute,
path: 'user',
validateSearch: z.object({
userId: z.number(),
}),
loaderDeps: ({ search: { userId } }) => ({
userId,
}),
loader: ({ deps: { userId } }) => fetchUserById(userId),
component: UserComponent,
})
function UserComponent() {
const user = userRoute.useLoaderData()
return (
<>
<h4 class="p-2 font-bold">{user()?.name}</h4>
<pre class="text-sm whitespace-pre-wrap">
{JSON.stringify(user(), null, 2)}
</pre>
</>
)
}
const expensiveRoute = createRoute({
getParentRoute: () => rootRoute,
// Your elements can be asynchronous, which means you can code-split!
path: 'expensive',
component: lazyRouteComponent(() => import('./Expensive')),
})
const authPathlessLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
id: 'auth',
// Before loading, authenticate the user via our auth context
// This will also happen during prefetching (e.g. hovering over links, etc)
beforeLoad: ({ context, location }) => {
// If the user is logged out, redirect them to the login page
if (context.auth.status === 'loggedOut') {
console.log(location)
throw redirect({
to: loginRoute.to,
search: {
// Use the current location to power a redirect after login
// (Do not use `router.state.resolvedLocation` as it can
// potentially lag behind the actual current location)
redirect: location.href,
},
})
}
// Otherwise, return the user in context
return {
username: auth.username,
}
},
})
const profileRoute = createRoute({
getParentRoute: () => authPathlessLayoutRoute,
path: 'profile',
component: ProfileComponent,
})
function ProfileComponent() {
const routeContext = profileRoute.useRouteContext()
return (
<div class="p-2 space-y-2">
<div>
Username:<strong>{routeContext().username}</strong>
</div>
<button
class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm"
onClick={() => {
auth.logout()
router.invalidate()
}}
>
Log out
</button>
</div>
)
}
const loginRoute = createRoute({
getParentRoute: () => rootRoute,
path: 'login',
validateSearch: z.object({
redirect: z.string().optional(),
}),
}).update({
component: LoginComponent,
})
function LoginComponent() {
const router = useRouter()
const routeContext = loginRoute.useRouteContext({
select: ({ auth }) => ({ auth, status: auth.status }),
})
const search = useSearch({ from: loginRoute.fullPath })
const [username, setUsername] = createSignal('')
const onSubmit = (e: SubmitEvent) => {
e.preventDefault()
routeContext().auth.login(username())
router.invalidate()
}
// Ah, the subtle nuances of client side auth. 🙄
createRenderEffect(
on([() => routeContext().status, () => search().redirect], () => {
const redirect = search().redirect
if (routeContext().status === 'loggedIn' && redirect) {
router.history.push(redirect)
}
}),
)
return routeContext().status === 'loggedIn' ? (
<div>
Logged in as <strong>{auth.username}</strong>
<div class="h-2" />
<button
onClick={() => {
auth.logout()
router.invalidate()
}}
class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm"
>
Log out
</button>
<div class="h-2" />
</div>
) : (
<div class="p-2">
<div>You must log in!</div>
<div class="h-2" />
<form onSubmit={onSubmit} class="flex gap-2">
<input
value={username()}
onInput={(e) => setUsername(e.currentTarget.value)}
placeholder="Username"
class="border p-1 px-2 rounded-sm"
/>
<button class="text-sm bg-blue-500 text-white border inline-block py-1 px-2 rounded-sm">
Login
</button>
</form>
</div>
)
}
const pathlessLayoutRoute = createRoute({
getParentRoute: () => rootRoute,
id: 'pathless-layout',
component: PathlessLayoutComponent,
})
function PathlessLayoutComponent() {
return (
<div>
<div>Pathless Layout</div>
<hr />
<Outlet />
</div>
)
}
const pathlessLayoutARoute = createRoute({
getParentRoute: () => pathlessLayoutRoute,
path: 'route-a',
component: PathlessLayoutAComponent,
})
function PathlessLayoutAComponent() {
return (
<div>
<div>I'm A</div>
</div>
)
}
const pathlessLayoutBRoute = createRoute({
getParentRoute: () => pathlessLayoutRoute,
path: 'route-b',
component: PathlessLayoutBComponent,
})
function PathlessLayoutBComponent() {
return (
<div>
<div>I'm B</div>
</div>
)
}
const routeTree = rootRoute.addChildren([\
indexRoute,\
dashboardLayoutRoute.addChildren([\
dashboardIndexRoute,\
invoicesLayoutRoute.addChildren([invoicesIndexRoute, invoiceRoute]),\
usersLayoutRoute.addChildren([usersIndexRoute, userRoute]),\
]),\
expensiveRoute,\
authPathlessLayoutRoute.addChildren([profileRoute]),\
loginRoute,\
pathlessLayoutRoute.addChildren([pathlessLayoutARoute, pathlessLayoutBRoute]),\
])
const router = createRouter({
routeTree,
defaultPendingComponent: () => (
<div class={`p-2 text-2xl`}>
<Spinner />
</div>
),
defaultErrorComponent: ({ error }) => <ErrorComponent error={error} />,
context: {
auth: undefined!, // We'll inject this when we render
},
defaultPreload: 'intent',
scrollRestoration: true,
})
declare module '@tanstack/solid-router' {
interface Register {
router: typeof router
}
}
const auth: Auth = {
status: 'loggedOut',
username: undefined,
login: (username: string) => {
auth.username = username
auth.status = 'loggedIn'
},
logout: () => {
auth.status = 'loggedOut'
auth.username = undefined
},
}
function App() {
// This stuff is just to tweak our sandbox setup in real-time
const [loaderDelay, setLoaderDelay] = useSessionStorage('loaderDelay', 500)
const [pendingMs, setPendingMs] = useSessionStorage('pendingMs', 1000)
const [pendingMinMs, setPendingMinMs] = useSessionStorage('pendingMinMs', 500)
return (
<>
<div class="text-xs fixed w-52 shadow-md shadow-black/20 rounded-sm bottom-2 left-2 bg-white dark:bg-gray-800 bg-opacity-75 border-b flex flex-col gap-1 flex-wrap items-left divide-y">
<div class="p-2 space-y-2">
<div class="flex gap-2">
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(150)
}}
>
Fast
</button>
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(500)
}}
>
Fast 3G
</button>
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setLoaderDelay(2000)
}}
>
Slow 3G
</button>
</div>
<div>
<div>Loader Delay: {loaderDelay()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={loaderDelay()}
onInput={(e) => setLoaderDelay(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
</div>
<div class="p-2 space-y-2">
<div class="flex gap-2">
<button
class="bg-blue-500 text-white rounded-sm p-1 px-2"
onClick={() => {
setPendingMs(1000)
setPendingMinMs(500)
}}
>
Reset to Default
</button>
</div>
<div>
<div>defaultPendingMs: {pendingMs()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={pendingMs()}
onInput={(e) => setPendingMs(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
<div>
<div>defaultPendingMinMs: {pendingMinMs()}ms</div>
<input
type="range"
min="0"
max="5000"
step="100"
value={pendingMinMs()}
onInput={(e) => setPendingMinMs(e.currentTarget.valueAsNumber)}
class="w-full"
/>
</div>
</div>
</div>
<RouterProvider
router={router}
defaultPreload="intent"
defaultPendingMs={pendingMs()}
defaultPendingMinMs={pendingMinMs()}
context={{
auth,
}}
/>
</>
)
}
function InvoiceFields({
invoice,
disabled,
}: {
invoice: Invoice
disabled?: boolean
}) {
return (
<div class="space-y-2">
<h2 class="font-bold text-lg">
<input
name="title"
value={invoice.title || ''}
placeholder="Invoice Title"
class="border border-opacity-50 rounded-sm p-2 w-full"
disabled={disabled}
/>
</h2>
<div>
<textarea
name="body"
value={invoice.body || ''}
rows={6}
placeholder="Invoice Body..."
class="border border-opacity-50 p-2 rounded-sm w-full"
disabled={disabled}
/>
</div>
</div>
)
}
type Auth = {
login: (username: string) => void
logout: () => void
status: 'loggedOut' | 'loggedIn'
username?: string
}
function Spinner({ show, wait }: { show?: boolean; wait?: `delay-${number}` }) {
return (
<div
class={`inline-block animate-spin px-3 transition ${
(show ?? true)
? `opacity-1 duration-500 ${wait ?? 'delay-300'}`
: 'duration-500 opacity-0 delay-0'
}`}
>
⍥
</div>
)
}
function useSessionStorage<T>(key: string, initialValue: T) {
const [state, setState] = createSignal<T>(
(() => {
const stored = sessionStorage.getItem(key)
return stored ? JSON.parse(stored) : initialValue
})(),
)
createEffect(
on(state, () => {
sessionStorage.setItem(key, JSON.stringify(state()))
}),
)
return [state, setState] as const
}
const rootElement = document.getElementById('app')!
if (!rootElement.innerHTML) {
render(() => <App />, rootElement)
}
Basic + SSR Streaming (file-based)
