`, 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",{"_285":286,"_287":288},"routes/_app.x.$handle.$name",{"_111":110,"_38":56,"_119":101,"_33":120,"_13":14,"_121":-5,"_11":122,"_123":124,"_125":126,"_127":128,"_129":130,"_27":-5,"_131":-5,"_132":-5,"_133":31,"_134":135,"_136":70,"_137":-5,"_138":-5,"_139":140},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":18,"_19":-5},"project",{"_54":55,"_38":56,"_44":57,"_58":-5,"_59":31,"_60":61,"_62":61,"_63":64,"_65":-5,"_19":66,"_67":68,"_69":70,"_71":-5,"_72":-5,"_73":74,"_75":76,"_77":78,"_79":80,"_81":82,"_83":-5,"_84":85,"_86":85,"_87":88,"_89":88,"_90":88,"_91":85,"_92":85,"_93":94,"_95":96,"_97":98,"_99":31},"version",4,"changes",[25,26],"aiChatInfo",{"_20":21,"_22":-5,"_23":-5,"_24":-5},"userId","aiChatMessageId","57216cec-5d5a-4001-b300-b3fcee6edf65","aiChatThreadId","aiChatThreadUserId","aiChatThreadTitle",{"_27":49,"_29":-7,"_30":31,"_32":31,"_33":50,"_35":50},{"_27":28,"_29":-7,"_30":31,"_32":31,"_33":34,"_35":34},"file",{"_36":37,"_38":39,"_40":41,"_42":43,"_44":45,"_46":14,"_47":48,"_30":31},"previous","deleted",false,"deletedHere","path","api/routes.ts","latestPath","fileId","4ab1c9e8-adc4-11f1-9997-1607ee4eb77e","name","routes.ts","fileType","script","content","import { Hono } from \"npm:hono\";\nimport { getCookie, setCookie } from \"npm:hono/cookie\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\nimport { initSchema } from \"../db/schema.ts\";\n\nlet ready: Promise | null = null;\nfunction ensureReady() {\n if (!ready) ready = initSchema();\n return ready;\n}\n\nfunction sessionId(c: any): string {\n let sid = getCookie(c, \"session_id\");\n if (!sid) {\n sid = crypto.randomUUID();\n setCookie(c, \"session_id\", sid, { path: \"/\", httpOnly: true, maxAge: 60 * 60 * 24 * 30 });\n }\n return sid;\n}\n\nexport const api = new Hono();\n\napi.use(\"*\", async (c, next) => {\n await ensureReady();\n await next();\n});\n\n// ---- Products ----\napi.get(\"/products\", async (c) => {\n const { rows } = await sqlite.execute(\"SELECT * FROM products ORDER BY id\");\n return c.json(rows);\n});\n\napi.get(\"/products/:id\", async (c) => {\n const id = Number(c.req.param(\"id\"));\n const { rows } = await sqlite.execute({ sql: \"SELECT * FROM products WHERE id = ?\", args: [id] });\n if (rows.length === 0) return c.json({ error: \"Not found\" }, 404);\n return c.json(rows[0]);\n});\n\n// ---- Cart ----\napi.get(\"/cart\", async (c) => {\n const sid = sessionId(c);\n const { rows } = await sqlite.execute({\n sql: `SELECT ci.id, ci.product_id, ci.quantity, p.name, p.price, p.emoji, p.stock\n FROM cart_items ci JOIN products p ON p.id = ci.product_id\n WHERE ci.session_id = ? ORDER BY ci.id`,\n args: [sid],\n });\n const total = rows.reduce((sum: number, r: any) => sum + r.price * r.quantity, 0);\n return c.json({ items: rows, total });\n});\n\napi.post(\"/cart\", async (c) => {\n const sid = sessionId(c);\n const body = await c.req.json<{ productId: number; quantity?: number }>();\n const qty = body.quantity ?? 1;\n\n const { rows: prodRows } = await sqlite.execute({\n sql: \"SELECT * FROM products WHERE id = ?\",\n args: [body.productId],\n });\n if (prodRows.length === 0) return c.json({ error: \"Product not found\" }, 404);\n\n const { rows: existing } = await sqlite.execute({\n sql: \"SELECT * FROM cart_items WHERE session_id = ? AND product_id = ?\",\n args: [sid, body.productId],\n });\n\n if (existing.length > 0) {\n await sqlite.execute({\n sql: \"UPDATE cart_items SET quantity = quantity + ? WHERE session_id = ? AND product_id = ?\",\n args: [qty, sid, body.productId],\n });\n } else {\n await sqlite.execute({\n sql: \"INSERT INTO cart_items (session_id, product_id, quantity) VALUES (?, ?, ?)\",\n args: [sid, body.productId, qty],\n });\n }\n return c.json({ ok: true });\n});\n\napi.patch(\"/cart/:productId\", async (c) => {\n const sid = sessionId(c);\n const productId = Number(c.req.param(\"productId\"));\n const body = await c.req.json<{ quantity: number }>();\n\n if (body.quantity <= 0) {\n await sqlite.execute({\n sql: \"DELETE FROM cart_items WHERE session_id = ? AND product_id = ?\",\n args: [sid, productId],\n });\n } else {\n await sqlite.execute({\n sql: \"UPDATE cart_items SET quantity = ? WHERE session_id = ? AND product_id = ?\",\n args: [body.quantity, sid, productId],\n });\n }\n return c.json({ ok: true });\n});\n\napi.delete(\"/cart/:productId\", async (c) => {\n const sid = sessionId(c);\n const productId = Number(c.req.param(\"productId\"));\n await sqlite.execute({\n sql: \"DELETE FROM cart_items WHERE session_id = ? AND product_id = ?\",\n args: [sid, productId],\n });\n return c.json({ ok: true });\n});\n\n// ---- Checkout / Orders ----\napi.post(\"/checkout\", async (c) => {\n const sid = sessionId(c);\n const body = await c.req.json<{ name: string; email: string }>();\n\n const { rows: items } = await sqlite.execute({\n sql: `SELECT ci.product_id, ci.quantity, p.name, p.price\n FROM cart_items ci JOIN products p ON p.id = ci.product_id\n WHERE ci.session_id = ?`,\n args: [sid],\n });\n\n if (items.length === 0) return c.json({ error: \"Cart is empty\" }, 400);\n\n const total = items.reduce((sum: number, r: any) => sum + r.price * r.quantity, 0);\n\n const orderResult = await sqlite.execute({\n sql: \"INSERT INTO orders (session_id, customer_name, customer_email, total) VALUES (?, ?, ?, ?)\",\n args: [sid, body.name, body.email, total],\n });\n const orderId = Number(orderResult.lastInsertRowid);\n\n const statements = items.map((r: any) => ({\n sql: \"INSERT INTO order_items (order_id, product_id, product_name, unit_price, quantity) VALUES (?, ?, ?, ?, ?)\",\n args: [orderId, r.product_id, r.name, r.price, r.quantity],\n }));\n statements.push({ sql: \"DELETE FROM cart_items WHERE session_id = ?\", args: [sid] } as any);\n await sqlite.batch(statements as any);\n\n return c.json({ ok: true, orderId, total });\n});\n\napi.get(\"/orders/:id\", async (c) => {\n const id = Number(c.req.param(\"id\"));\n const { rows: orderRows } = await sqlite.execute({ sql: \"SELECT * FROM orders WHERE id = ?\", args: [id] });\n if (orderRows.length === 0) return c.json({ error: \"Not found\" }, 404);\n const { rows: itemRows } = await sqlite.execute({\n sql: \"SELECT * FROM order_items WHERE order_id = ?\",\n args: [id],\n });\n return c.json({ ...orderRows[0], items: itemRows });\n});\n","createdAt",["D",1789119400342],"branchVersion","branchId","6b84f907-9e8f-45d7-a71c-56a2a983dc31",{"_36":51,"_38":50,"_40":52,"_42":-5,"_44":53,"_46":14,"_47":48,"_30":31},"api","3dad3ae0-86bd-4de4-a381-259e50143d4d","directory",["D",1789119400342],"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",{"_111":110,"_118":114},"org",{"_111":110,"_112":110,"_113":114,"_19":66,"_115":116,"_117":31},"branch",{"_13":100,"_38":101,"_54":48,"_102":55,"_103":-5,"_104":-5,"_105":-5,"_106":-5,"_107":-5,"_108":56,"_109":110},"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",{"_54":55,"_38":56,"_44":280,"_58":-5,"_59":31,"_60":61,"_62":61,"_63":64,"_65":-5,"_19":66,"_67":68,"_69":70,"_71":-5,"_72":-5,"_73":74,"_75":76,"_77":78,"_79":80,"_81":281,"_83":-5,"_84":85,"_86":85,"_87":88,"_89":88,"_90":88,"_91":85,"_92":85,"_93":282,"_95":283,"_97":284,"_99":31},"tree",[194,196,198,205,206,207],"files",[194,195,196,197,198,199,200,201,202,203,204,205,206,207],"counts",{"_184":74,"_185":150,"_186":74,"_187":188,"_189":190},"contents",[141,142,143,144,145,146],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_54":181,"_38":50,"_36":51,"_149":-5,"_47":48,"_46":14,"_151":70,"_44":182,"_13":74,"_40":52,"_42":-5,"_30":31,"_155":-5,"_33":183},{"_54":175,"_38":176,"_36":177,"_149":-5,"_47":48,"_46":178,"_151":70,"_44":179,"_13":74,"_40":52,"_42":-5,"_30":31,"_155":-5,"_33":180},{"_54":170,"_38":171,"_36":172,"_149":-5,"_47":48,"_46":150,"_151":70,"_44":173,"_13":74,"_40":52,"_42":-5,"_30":31,"_155":-5,"_33":174},{"_54":164,"_38":165,"_36":166,"_149":-5,"_47":48,"_46":150,"_151":70,"_44":167,"_13":74,"_40":27,"_42":168,"_30":31,"_155":-5,"_33":169},{"_54":158,"_38":159,"_36":160,"_149":-5,"_47":48,"_46":150,"_151":31,"_44":161,"_13":74,"_40":27,"_42":162,"_30":31,"_155":-5,"_33":163},{"_54":147,"_38":148,"_36":68,"_149":-5,"_47":48,"_46":150,"_151":31,"_44":152,"_13":74,"_40":153,"_42":154,"_30":31,"_155":156,"_33":157},"ad52d866-2fe0-4275-9d90-351af7c4012a","index.ts","parentId",1,"latest",["D",1789119363697],"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","label","thimbunhuv-ecommerce",[148],"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",[159],"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 · v4