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React + Hono Starter

\n \n

\n View source\n

\n );\n}\n","/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useState } from \"https://esm.sh/react@18.2.0\";\n\ntype Message = { role: \"user\" | \"assistant\"; content: string };\n\nconst PLANS = [\n { name: \"Free\", price: \"RM0\", detail: \"4 mesej\", tone: \"border-slate-200\", cta: \"Pelan semasa\" },\n { name: \"Monthly\", price: \"RM19\", detail: \"Mesej tanpa had\", tone: \"border-indigo-300 ring-2 ring-indigo-100\", cta: \"Langgan bulanan\", link: \"/api/subscribe?plan=monthly\" },\n { name: \"Annual\", price: \"RM190\", detail: \"Jimat 2 bulan\", tone: \"border-violet-300\", cta: \"Langgan tahunan\", link: \"/api/subscribe?plan=annual\" },\n];\n\nexport function App() {\n const [messages, setMessages] = useState([\n { role: \"assistant\", content: \"Hai! 👋 Saya Nexus AI. Tanya saya apa sahaja untuk mula.\" },\n ]);\n const [input, setInput] = useState(\"\");\n const [loading, setLoading] = useState(false);\n const [count, setCount] = useState(0);\n\n async function sendMessage() {\n const text = input.trim();\n if (!text || loading) return;\n if (count >= 4) return;\n setInput(\"\");\n setMessages((m) => [...m, { role: \"user\", content: text }]);\n setLoading(true);\n try {\n const res = await fetch(\"/api/chat\", {\n method: \"POST\",\n headers: { \"content-type\": \"application/json\" },\n body: JSON.stringify({ message: text }),\n });\n const data = await res.json();\n setMessages((m) => [...m, { role: \"assistant\", content: data.reply ?? \"Maaf, berlaku ralat.\" }]);\n setCount((n) => n + 1);\n } catch {\n setMessages((m) => [...m, { role: \"assistant\", content: \"Sambungan bermasalah. Cuba lagi.\" }]);\n } finally { setLoading(false); }\n }\n\n return (\n

✦

Nexus AI

AI chat assistant

\n Log masuk\n

\n\n

Berbincang dengan AI

Bantu kerja sekolah, idea, penerangan dan banyak lagi.

\n {messages.map((m, i) =>

{m.content}

)}\n {loading &&

Nexus AI sedang berfikir…

}\n

setInput(e.target.value)} onKeyDown={(e) => e.key === \"Enter\" && sendMessage()} disabled={count >= 4 || loading} placeholder={count >= 4 ? \"Naik taraf untuk teruskan\" : \"Taip mesej…\"} className=\"flex-1 bg-white/10 border border-white/10 rounded-2xl px-4 py-3 outline-none focus:ring-2 focus:ring-indigo-500\" />

{count}/4 mesej percuma digunakanPowered by AI

\n\n \n

\n \n

\n );\n}\n","createdAt",["D",1788497962654],"branchVersion","branchId","5f4d11b3-1d07-4c23-99b9-2250b3421963","id","60a94f13-b7cd-4e2b-8e7c-a409a848e927","ai-chat-subscription",["D",1788497931166],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","AI chat app with subscription plans and usage limits","imageUrl","5e09ff70-68df-4bd4-858a-c860165ee7aa","pinnedFileId","01a06ac8-abfc-71dd-b94c-60ade2b1859c","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a06aba-e253-7656-932f-ae0ebf784a8c","tursoName","60a94f13b7cd4e2b8e7ca409a848e927","tursoHostname","60a94f13b7cd4e2b8e7ca409a848e927-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789625450303],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_101":100,"_109":105},"org",{"_101":100,"_102":103,"_104":105,"_18":56,"_106":107,"_108":25},"branch",{"_13":90,"_32":91,"_44":43,"_92":45,"_93":-5,"_94":-5,"_95":-5,"_96":-5,"_97":-5,"_98":46,"_99":100},"isOwned",4,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","Shinnzicco","handle","displayName","shinzicco Isaac","avatar","https://lh3.googleusercontent.com/a/ACg8ocK2aNRCFAwAAvrSA96I1NbQYIj6BW_pMQg3UJCH-rqKJbMOXnw=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_44":45,"_32":46,"_39":235,"_48":-5,"_49":25,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":60,"_61":-5,"_62":-5,"_63":64,"_65":66,"_67":68,"_69":70,"_71":236,"_73":-5,"_74":75,"_76":75,"_77":78,"_79":78,"_80":78,"_81":75,"_82":75,"_83":237,"_85":238,"_87":239,"_89":25},"tree",[174,181,182,183],"files",[174,175,176,177,178,179,180,181,182,183],"counts",{"_164":64,"_165":139,"_166":64,"_167":168,"_169":170},"contents",[132,133,134,135],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_44":158,"_32":159,"_30":160,"_138":-5,"_42":43,"_41":139,"_140":60,"_39":161,"_13":64,"_34":162,"_36":-5,"_24":25,"_144":-5,"_27":163},{"_44":152,"_32":153,"_30":154,"_138":-5,"_42":43,"_41":139,"_140":60,"_39":155,"_13":64,"_34":20,"_36":156,"_24":25,"_144":-5,"_27":157},{"_44":146,"_32":147,"_30":148,"_138":-5,"_42":43,"_41":139,"_140":60,"_39":149,"_13":64,"_34":20,"_36":150,"_24":25,"_144":-5,"_27":151},{"_44":136,"_32":137,"_30":58,"_138":-5,"_42":43,"_41":139,"_140":25,"_39":141,"_13":64,"_34":142,"_36":143,"_24":25,"_144":-5,"_27":145},"90ed8112-8b5d-4e7b-ae16-5f30d29e0d0b","index.ts","parentId",1,"latest",["D",1788497931166],"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",[137],"130b3e1b-86f5-4135-be7c-502bac1cd801","README.md","01a06ac8-abfc-71dd-b94c-5ee6ef76a6e1",["D",1788497931166],"# 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",[147],"d8527099-9f53-48a6-aea9-5bf73237de07","CHANGELOG.md","01a06ac8-abfc-71dd-b94c-58b288f3b13f",["D",1788497931166],"# 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 · v2