`, 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

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_308":309,"_310":311},"routes/_app.x.$handle.$name",{"_105":104,"_37":50,"_113":95,"_32":114,"_13":14,"_115":-5,"_11":116,"_117":118,"_119":120,"_121":122,"_123":124,"_26":-5,"_125":-5,"_126":-5,"_127":30,"_128":129,"_130":64,"_131":-5,"_132":-5,"_133":134},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_48":49,"_37":50,"_43":51,"_52":-5,"_53":30,"_54":55,"_56":55,"_57":58,"_59":-5,"_19":60,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":68,"_69":70,"_71":72,"_73":74,"_75":76,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":88,"_89":90,"_91":92,"_93":30},"version",7,"changes",[25],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","57216cec-5d5a-4001-b300-b3fcee6edf65","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_26":27,"_28":-7,"_29":30,"_31":30,"_32":33,"_34":33},"file",{"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":14,"_46":47,"_29":30},"previous","deleted",false,"deletedHere","path","frontend/components/ProductList.tsx","latestPath","fileId","58f68cfa-adc4-11f1-82b4-1607ee4eb77e","name","ProductList.tsx","fileType","script","content","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useState } from \"https://esm.sh/react@18.2.0\";\nimport { api, Product } from \"../lib/api.ts\";\n\nexport function ProductList({ onCartChange }: { onCartChange: () => void }) {\n const [products, setProducts] = useState([]);\n const [loading, setLoading] = useState(true);\n const [addingId, setAddingId] = useState(null);\n\n useEffect(() => {\n api.getProducts().then(setProducts).finally(() => setLoading(false));\n }, []);\n\n async function addToCart(id: number) {\n setAddingId(id);\n try {\n await api.addToCart(id, 1);\n onCartChange();\n } finally {\n setAddingId(null);\n }\n }\n\n if (loading) return

Loading products…

;\n\n return (\n

\n {products.map((p) => (\n

{p.emoji}

{p.name}

{p.description}

${p.price.toFixed(2)}

\n addToCart(p.id)}\n disabled={addingId === p.id}\n class=\"mt-1 bg-gray-900 hover:bg-gray-700 text-white text-sm px-3 py-1.5 rounded-lg disabled:opacity-50\"\n >\n {addingId === p.id ? \"Adding…\" : \"Add to cart\"}\n \n

\n ))}\n

\n );\n}\n","createdAt",["D",1789119424283],"branchVersion","branchId","6b84f907-9e8f-45d7-a71c-56a2a983dc31","id","23008581-31d3-4ffc-88c8-e5de395d1699","ecommerce-fullstack",["D",1789119363697],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Fullstack ecommerce: Hono API + React + SQLite","imageUrl","f64a1e57-491d-41db-9ce8-a18a2ab45e18","pinnedFileId","01a08fd2-faaf-742b-b80a-89f8be99ffa6","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a08fcf-5ebc-76ac-a0ab-95cf3f9c845c","tursoName","2300858131d34ffc88c8e5de395d1699","tursoHostname","2300858131d34ffc88c8e5de395d1699-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789467027352],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_105":104,"_112":108},"org",{"_105":104,"_106":104,"_107":108,"_19":60,"_109":110,"_111":30},"branch",{"_13":94,"_37":95,"_48":47,"_96":49,"_97":-5,"_98":-5,"_99":-5,"_100":-5,"_101":-5,"_102":50,"_103":104},"isOwned",14,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","thimbunhuv","handle","displayName","avatar","https://avatars.githubusercontent.com/u/151597175?v=4","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_48":49,"_37":50,"_43":303,"_52":-5,"_53":30,"_54":55,"_56":55,"_57":58,"_59":-5,"_19":60,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":68,"_69":70,"_71":72,"_73":74,"_75":304,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":305,"_89":306,"_91":307,"_93":30},"tree",[193,195,197,207,208,209],"files",[193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209],"counts",{"_183":68,"_184":147,"_185":68,"_186":187,"_188":189},"contents",[135,136,137,138,139,140],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_48":177,"_37":178,"_35":179,"_143":-5,"_46":47,"_45":180,"_145":64,"_43":181,"_13":68,"_39":169,"_41":-5,"_29":30,"_150":-5,"_32":182},{"_48":171,"_37":172,"_35":173,"_143":-5,"_46":47,"_45":174,"_145":64,"_43":175,"_13":68,"_39":169,"_41":-5,"_29":30,"_150":-5,"_32":176},{"_48":165,"_37":166,"_35":167,"_143":-5,"_46":47,"_45":147,"_145":64,"_43":168,"_13":68,"_39":169,"_41":-5,"_29":30,"_150":-5,"_32":170},{"_48":159,"_37":160,"_35":161,"_143":-5,"_46":47,"_45":147,"_145":64,"_43":162,"_13":68,"_39":26,"_41":163,"_29":30,"_150":-5,"_32":164},{"_48":153,"_37":154,"_35":155,"_143":-5,"_46":47,"_45":147,"_145":30,"_43":156,"_13":68,"_39":26,"_41":157,"_29":30,"_150":-5,"_32":158},{"_48":141,"_37":142,"_35":62,"_143":-5,"_46":47,"_45":144,"_145":64,"_43":146,"_13":147,"_39":148,"_41":149,"_29":30,"_150":151,"_32":152},"0ed376b4-0951-4732-965d-7e23e2ea3bb0","index.ts","parentId",5,"latest",["D",1789119406023],1,"http","import { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\nimport { api } from \"./api/routes.ts\";\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// API routes\napp.route(\"/api\", api);\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","label","thimbunhuv-ecommerce",[142],"1aacc011-1d8b-4918-99ad-d1c4ae10792d","README.md","01a08fd2-faaf-742b-b80a-850b9087b214",["D",1789119363697],"# 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",[154],"8fa491da-7567-43d0-8e01-e9d19fff6f8f","CHANGELOG.md","01a08fd2-faaf-742b-b80a-825098e8b7ab",["D",1789119363697],"# 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

Diff · v7