`, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter

\n Clicked\n setCount((c) => c + 1)}\n class=\"bg-blue-500 hover:bg-blue-600 text-white font-medium px-4 py-2 rounded-lg transition-colors cursor-pointer\"\n >\n {count}\n \n times\n

\n );\n}\n","label",[160,161,69],"frontend","components","pulls","branches","forks","envVars",{"_169":26,"_171":26},"connections",{"_169":26,"_170":26},"count","unfilledCount","emptyCount",{"_32":243,"_13":160,"_67":207,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":244,"_38":26,"_70":240,"_156":-5,"_72":24,"_158":-5,"_187":245,"_17":246},{"_32":238,"_13":161,"_67":152,"_42":207,"_34":35,"_153":39,"_154":89,"_36":239,"_38":26,"_70":240,"_156":-5,"_72":24,"_158":-5,"_187":241,"_17":242},{"_32":231,"_13":232,"_67":233,"_42":152,"_34":35,"_153":115,"_154":89,"_36":234,"_38":210,"_70":71,"_156":235,"_72":24,"_158":-5,"_187":236,"_17":237},{"_32":151,"_13":69,"_67":68,"_42":152,"_34":35,"_153":39,"_154":89,"_36":228,"_38":26,"_70":71,"_156":157,"_72":24,"_158":-5,"_187":229,"_17":230},{"_32":221,"_13":222,"_67":223,"_42":207,"_34":35,"_153":39,"_154":89,"_36":224,"_38":26,"_70":21,"_156":225,"_72":24,"_158":-5,"_187":226,"_17":227},{"_32":214,"_13":215,"_67":216,"_42":207,"_34":35,"_153":39,"_154":89,"_36":217,"_38":26,"_70":71,"_156":218,"_72":24,"_158":-5,"_187":219,"_17":220},{"_32":204,"_13":205,"_67":206,"_42":207,"_34":35,"_153":208,"_154":89,"_36":209,"_38":210,"_70":71,"_156":211,"_72":24,"_158":-5,"_187":212,"_17":213},{"_32":197,"_13":198,"_67":199,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":200,"_38":26,"_70":21,"_156":201,"_72":24,"_158":-5,"_187":202,"_17":203},{"_32":190,"_13":191,"_67":192,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":193,"_38":26,"_70":21,"_156":194,"_72":24,"_158":-5,"_187":195,"_17":196},{"_32":182,"_13":183,"_67":87,"_42":-5,"_34":35,"_153":39,"_154":89,"_36":184,"_38":26,"_70":185,"_156":186,"_72":24,"_158":-5,"_187":188,"_17":189},"a9deae09-d612-46b7-a0fc-7829d1756b51","index.ts",["D",1788712800632],"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\n\nconst app = new Hono();\n\n// Serve the (never-cached) HTML shell at the root /\napp.get(\"/\", (c) => c.html(Root()));\n\n// Serve frontend files at the version-addressed URLs Root() stamps, cached immutably\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\n\n// View source redirect\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\n// Add your API routes here\n// app.get(\"/api/data\", c => c.json({ hello: \"world\" }));\n\n// Unwrap and rethrow Hono errors as the original error\n// If you delete this, all errors will be \"Internal Server Error\"\napp.onError((err) => Promise.reject(err));\n\n// HTTP vals expect an exported \"fetch handler\"\n// This is how you \"run the server\" in Val Town with Hono\nexport default app.fetch;\n","children",[],[183],"6b5ef217-e3df-4172-9443-ff80a078d2d3","README.md","01a07797-520a-721f-b8d3-43162841773b",["D",1788712800632],"# React + Hono Starter\n\nA minimal starter template for building client-side React apps with a Hono\nbackend on Val Town. Click **Remix** to get your own copy.\n\n## Picking a starter\n\n| Starter | When to pick it |\n| --- | --- |\n| [`basic-html-starter`](https://www.val.town/x/templates/basic-html-starter) | Static HTML pages. Sprinkle of vanilla JS. No server-side rendering. |\n| [`hono-jsx-starter`](https://www.val.town/x/templates/hono-jsx-starter) | Dynamic server-rendered HTML with JSX. API routes. No React, no SPA. |\n| **[`react-hono-starter`](https://www.val.town/x/templates/react-hono-starter)** *(you're here)* | Client-side React SPA with a Hono API backend. |\n\n**Want to build UI?** Start writing React components in\n[`frontend/components/`](/frontend/components/). Import them into `App.tsx` and\nyou're good to go. Styling is [Twind](https://twind.style/) — just use Tailwind\nutility classes, zero config.\n\n**Want to add an API?** Add routes in [`index.ts`](/index.ts) (there's a\ncommented-out example). Fetch them from your React components.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|\"GET /\"| Hono[\"index.ts
(Hono server)\"]\n Hono -->|serves| HTML[\"root.tsx\"]\n HTML -->|loads| Entry[\"index.tsx\"]\n Entry -->|renders| App[\"App.tsx\"]\n App -->|renders| Counter[\"Counter.tsx\"]\n```\n\n## File structure\n\n```\nindex.ts ← Hono backend (serves frontend + API routes)\nfrontend/\n root.tsx ← HTML shell (stamps immutable asset URLs)\n index.tsx ← React entrypoint (mounts )\n favicon.svg ← App icon\n components/\n App.tsx ← Root component (layout + view source link)\n Counter.tsx ← Example component with state\n```\n\n## How it works\n\n1. **`index.ts`** is the HTTP entrypoint — a Hono server that serves the\n frontend and any API routes you add.\n2. **`frontend/root.tsx`** is the HTML shell — it loads Twind and stamps\n immutable asset URLs for the favicon and React entrypoint.\n3. **`frontend/index.tsx`** mounts the React app.\n4. **`frontend/components/App.tsx`** is the root layout — add new components\n alongside it.\n5. **`frontend/components/Counter.tsx`** is an example stateful component —\n replace it with your own!\n\n## Next steps\n\n- Add API routes in `index.ts`\n- Add new components in `frontend/components/`\n- Add a SQLite database — see the\n [React Hono Example](https://www.val.town/x/stevekrouse/reactHonoExample) for\n a full-stack example with database, queries, and shared types\n\nTemplate updates and upgrade paths for existing remixes: [CHANGELOG.md](/CHANGELOG.md)\n",[],[191],"52665cc5-4a04-4de2-a9f0-26807e2e3d7a","CHANGELOG.md","01a07797-520a-721f-b8d3-3dbb5a9a456d",["D",1788712800632],"# Changelog\n\n## 2026-07-30 — Immutable asset caching\n\nFrontend files are now served at version-addressed URLs\n(`/__immutable/45/frontend/index.tsx`) with\n`Cache-Control: public, max-age=31536000, immutable`, so repeat visits load the\nwhole client graph from the browser cache — roughly 3× faster (~665ms → ~157ms\nmeasured). Publishing your val bumps its version, which changes every URL, so\ncaches invalidate automatically. Old-version URLs return 404 after a publish\n(like Next.js build assets); a reload picks up the new version.\n\nWhat changed in the template:\n\n- `frontend/index.html` → [`frontend/root.tsx`](/frontend/root.tsx): the HTML\n shell is now JSX and stamps asset URLs with `immutableFileUrl()`\n- [`index.ts`](/index.ts): serves `Root()` at `/`, and one\n `app.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path))` route\n serves all frontend files\n\n### Upgrading an existing remix\n\nYour copy of this template doesn't update automatically. Two options:\n\n**Minimal (most of the benefit):** point both routes at `serveImmutableFile` —\nyour existing bare URLs redirect into versioned space, the new route serves\nthem, and the whole module graph gets cached (costs one redirect per page view):\n\n```ts\nimport { serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\n\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/frontend/**/*\", (c) => serveImmutableFile(c.req.path)); // was serveFile\n```\n\n**Full upgrade (also removes the redirect):** three self-contained steps —\nno other files needed. Adjust the ``, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter\n \n \n \n \n \n );\n}\n",[],[160,205],"70af3f76-73c9-4196-9faa-193ee2452b70","index.tsx","01a07797-520a-721f-b8d3-33ddedca3ce0",["D",1788712800632],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { createRoot } from \"https://esm.sh/react-dom@18.2.0/client\";\nimport { App } from \"./components/App.tsx\";\n\nconst root = document.getElementById(\"root\");\nif (!root) {\n throw new Error(\"No root element found\");\n}\n\ncreateRoot(root).render();",[],[160,215],"1de0a390-1126-4f53-96f6-4bb8e4414574","favicon.svg","01a07797-520a-721f-b8d3-2ef50e137565",["D",1788712800632],"\n",[],[160,222],["D",1788712800632],[],[160,161,69],"cdef1395-3a20-491a-85f6-28bc5be55b81","App.tsx","01a07797-520a-721f-b8d3-23b208593e0d",["D",1788719829797],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useState } from \"https://esm.sh/react@18.2.0\";\n\nconst keys = [\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\",\"*\",\"0\",\"#\"];\nconst letters: Record = {\"2\":\"ABC\",\"3\":\"DEF\",\"4\":\"GHI\",\"5\":\"JKL\",\"6\":\"MNO\",\"7\":\"PQRS\",\"8\":\"TUV\",\"9\":\"WXYZ\"};\n\ntype Tab = \"keypad\" | \"recent\" | \"contacts\";\n\nfunction Icon({type}:{type:string}){\n const paths: Record = {\n phone:,\n contacts:,\n messages:,\n camera:<>,\n gallery:,\n calculator:,\n browser:,\n settings:\n };\n return ;\n}\n\nexport function App(){\n const [number,setNumber]=useState(\"\"); const [tab,setTab]=useState(\"keypad\");\n const [app,setApp]=useState(null); const [opening,setOpening]=useState(false); const [closing,setClosing]=useState(false);\n const [origin,setOrigin]=useState({x:\"50%\",y:\"85%\"}); const [toast,setToast]=useState(\"\"); const [time,setTime]=useState(\"\");\n const [recent,setRecent]=useState([]); const [contacts,setContacts]=useState([\"Мама\",\"Папа\",\"Алихан\"]);\n\n useEffect(()=>{const tick=()=>setTime(new Date().toLocaleTimeString(\"ru-RU\",{hour:\"2-digit\",minute:\"2-digit\"}));tick();const id=setInterval(tick,1000);return()=>clearInterval(id)},[]);\n useEffect(()=>{if(!toast)return;const id=setTimeout(()=>setToast(\"\"),1800);return()=>clearTimeout(id)},[toast]);\n\n const showToast=(s:string)=>setToast(s);\n const openPhone=(x=\"50%\",y=\"85%\")=>{setOrigin({x,y});setApp(\"Телефон\");setOpening(true);setClosing(false);setTab(\"keypad\");setTimeout(()=>setOpening(false),620)};\n const openApp=(name:string,e?:any)=>{const r=e?.currentTarget?.getBoundingClientRect?.();const host=e?.currentTarget?.closest?.(\".phone-shell\")?.getBoundingClientRect?.();let x=\"50%\",y=\"85%\";if(r&&host){x=((r.left+r.width/2-host.left)/host.width*100)+\"%\";y=((r.top+r.height/2-host.top)/host.height*100)+\"%\"}setOrigin({x,y});setApp(name);setOpening(true);setClosing(false);setTimeout(()=>setOpening(false),620)};\n const closeApp=()=>{if(!app||closing)return;setClosing(true);setTimeout(()=>{setApp(null);setClosing(false)},500)};\n const add=(k:string)=>setNumber(n=>n.length<20?n+k:n); const del=()=>setNumber(n=>n.slice(0,-1));\n const call=()=>{if(!number){showToast(\"Введите номер\");return}setRecent(r=>[number,...r.filter(x=>x!==number)].slice(0,8));showToast(`Вызов ${number}`)};\n const keyDown=(e:React.KeyboardEvent)=>{if(e.key>=\"0\"&&e.key<=\"9\")add(e.key);if(e.key===\"*\")add(\"*\");if(e.key===\"#\")add(\"#\");if(e.key===\"Backspace\")del()};\n\n const appIcon=(name:string,type:string,cls:string)=>

type===\"phone\"?openPhone():openApp(name,e)}>

{name}

;\n\n return

{time}

5G⌁▮▮▮

\n
\n
Добрый вечер
ColorOS 16
✦
\n
Туркестан
Ясно • Сегодня
28°
\n
\n {appIcon(\"Телефон\",\"phone\",\"icon-phone\")}{appIcon(\"Контакты\",\"contacts\",\"icon-contacts\")}{appIcon(\"Сообщения\",\"messages\",\"icon-messages\")}{appIcon(\"Камера\",\"camera\",\"icon-camera\")}\n {appIcon(\"Галерея\",\"gallery\",\"icon-gallery\")}{appIcon(\"Калькулятор\",\"calculator\",\"icon-calculator\")}{appIcon(\"Браузер\",\"browser\",\"icon-browser\")}{appIcon(\"Настройки\",\"settings\",\"icon-settings\")}\n
\n
openPhone()}>
openApp(\"Сообщения\")}>
openApp(\"Камера\")}>
openApp(\"Браузер\")}>
\n
\n\n {app&&
\n
\n
{app}
•••
\n {app===\"Телефон\"?<>\n
\n
\n {tab===\"keypad\"&&
{number||Введите номер}
{number?\"Нажмите зелёную кнопку для вызова\":\"\"}
{keys.map(k=>)}
* и # поддерживаются • До 20 символов
}\n {tab===\"recent\"&&
{recent.length?recent.map((n,i)=>
{setNumber(n);setTab(\"keypad\")}}>
☎
{n}
Исходящий вызов
сейчас
):
История вызовов пуста
}
}\n {tab===\"contacts\"&&
{contacts.map((c,i)=>
{c[0]}
{c}
Мобильный
)}
}\n
\n :
{app===\"Камера\"?\"◉\":app===\"Галерея\"?\"▧\":app===\"Калькулятор\"?\"＋\":app===\"Настройки\"?\"⚙\":\"◌\"}
{app}
Интерфейс в стиле ColorOS 16 готов к работе
}\n
\n
}\n
\n {toast&&
{toast}
}\n

;\n}\n",[],[160,161,232],"e7c2e9db-c68f-4146-bfb5-f86d31c5ed14",["D",1788712800632],"directory",[174,175],[160,161],"d1c15b74-d98e-407d-ba8d-eaee3139c7bc",["D",1788712800632],[173,176,177,178],[160],["D",1788712800632],["D",1789494036282],{"_11":12,"_129":75},{"_11":12,"_124":125,"_74":75,"_30":73,"_126":127,"_128":24},{"_38":115,"_13":16,"_32":35,"_116":77,"_117":-5,"_118":-5,"_119":-5,"_120":-5,"_121":-5,"_122":14,"_123":12},"ctx",{"_53":-5,"_148":285,"_286":287,"_288":289,"_290":24,"_291":24,"_292":24,"_293":89,"_294":-5,"_295":-7,"_296":-7,"_297":26,"_298":24,"_299":24,"_300":-5,"_301":24,"_302":24,"_303":24,"_304":-5},"ENV",{"_256":257,"_258":259,"_260":16,"_261":262,"_263":264,"_265":266,"_267":268,"_269":270,"_271":272,"_273":274,"_275":276,"_277":278,"_279":280,"_281":282,"_283":284},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

History · Counter.tsx