`, 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",{"_328":329,"_330":331},"routes/_app.x.$handle.$name",{"_11":12,"_13":14,"_15":16,"_18":19,"_17":-7,"_246":-5,"_20":247,"_22":248,"_249":250,"_251":252,"_26":253,"_24":254,"_255":-5,"_256":-5,"_257":52,"_258":259,"_260":43,"_261":-5,"_262":-5,"_263":264},"routes/_app.x.$handle.$name.branch.$branch.code.$",{"_11":12,"_13":14,"_15":16,"_17":-7,"_18":19,"_20":21,"_22":23,"_24":25,"_26":27,"_28":-5,"_29":-5,"_30":-5,"_31":-5,"_32":-5},"handle","michaelfreedman","name","nfl-betting-app","branchName","main","version","path","index.ts","project",{"_33":188,"_13":14,"_44":189,"_190":-5,"_191":52,"_192":193,"_194":193,"_195":196,"_197":-5,"_198":199,"_200":36,"_201":43,"_202":-5,"_203":-5,"_204":77,"_205":206,"_207":208,"_209":210,"_211":212,"_213":-5,"_214":215,"_216":215,"_217":218,"_219":218,"_220":218,"_221":215,"_222":215,"_223":224,"_225":226,"_227":228,"_229":52},"tree",[55,56,57,58,59],"file",{"_33":34,"_13":19,"_35":36,"_37":-5,"_38":39,"_40":41,"_42":43,"_44":45,"_17":46,"_47":48,"_49":50,"_51":52,"_53":-5,"_18":54},"contents",[],"upstream","pull","ahead","behind","envVars","id","cc021349-db62-46d2-bcbb-52992d3557ec","fileId","01a083dd-a784-740f-ad04-36397e47d99f","parentId","branchId","8ec703c1-dca2-4457-930c-483e75a3ce83","branchVersion",27,"latest",true,"createdAt",["D",1788919022922],4,"fileType","http","content","// NFL Betting App — Hono backend.\n// Serves the React frontend + a JSON API backed by The Odds API and SQLite.\n\nimport { parseVal, serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\nimport { Hono } from \"npm:hono\";\nimport { Root } from \"./frontend/root.tsx\";\nimport { getState, getHistory, getGameById, americanToDecimal } from \"./lib/data.ts\";\nimport { placeBet, resetBankroll } from \"./lib/db.ts\";\n\nconst app = new Hono();\n\napp.get(\"/\", (c) => c.html(Root()));\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\n/** Current slate: games + lines, user bets, bankroll, record. Settles finished games. */\napp.get(\"/api/games\", async (c) => {\n const state = await getState();\n return c.json(state);\n});\n\n/** Full bet history + current state. */\napp.get(\"/api/history\", async (c) => {\n return c.json(await getHistory());\n});\n\n/** Place a bet. Body: { gameId, betType: 'moneyline'|'spread'|'total', side, stake } */\napp.post(\"/api/bets\", async (c) => {\n const body = await c.req.json().catch(() => null);\n if (!body) return c.json({ error: \"Invalid JSON body.\" }, 400);\n\n const { gameId, betType, side, stake } = body as any;\n const game = await getGameById(gameId);\n if (!game) return c.json({ error: \"Game not found.\" }, 404);\n if (game.completed) return c.json({ error: \"That game is already finished.\" }, 400);\n\n let pickLabel: string;\n let linePoint: number | null = null;\n let decimalOdds: number;\n\n if (betType === \"moneyline\") {\n if (side !== \"home\" && side !== \"away\") return c.json({ error: \"Moneyline needs side 'home' or 'away'.\" }, 400);\n const american = side === \"home\" ? game.homeMoneyline : game.awayMoneyline;\n if (american == null) return c.json({ error: \"No moneyline available for that game yet.\" }, 400);\n pickLabel = `${game[side].abbr} ML (${american > 0 ? \"+\" : \"\"}${american})`;\n decimalOdds = americanToDecimal(american);\n } else if (betType === \"spread\") {\n if (side !== \"home\" && side !== \"away\") return c.json({ error: \"Spread needs side 'home' or 'away'.\" }, 400);\n if (game.spread == null) return c.json({ error: \"No spread available for that game yet.\" }, 400);\n const lineForSide = side === \"home\" ? game.spread : -game.spread;\n pickLabel = `${game[side].abbr} ${lineForSide > 0 ? \"+\" : \"\"}${lineForSide}`;\n linePoint = game.spread; // home-relative line, used for settlement\n decimalOdds = 2.0; // even money on the spread\n } else if (betType === \"total\") {\n if (side !== \"over\" && side !== \"under\") return c.json({ error: \"Total needs side 'over' or 'under'.\" }, 400);\n if (game.overUnder == null) return c.json({ error: \"No total available for that game yet.\" }, 400);\n pickLabel = `${side === \"over\" ? \"Over\" : \"Under\"} ${game.overUnder}`;\n linePoint = game.overUnder;\n decimalOdds = 2.0; // even money on the total\n } else {\n return c.json({ error: \"betType must be 'moneyline', 'spread', or 'total'.\" }, 400);\n }\n\n if (!Number.isFinite(Number(stake))) return c.json({ error: \"A valid stake is required.\" }, 400);\n\n try {\n const result = await placeBet({\n gameId,\n gameLabel: `${game.away.displayName} @ ${game.home.displayName}`,\n betType,\n side,\n pickLabel,\n linePoint,\n stake: Number(stake),\n decimalOdds,\n });\n return c.json(result);\n } catch (e) {\n return c.json({ error: e instanceof Error ? e.message : \"Could not place bet.\" }, 400);\n }\n});\n\n/** Reset the bankroll and clear all bets. */\napp.post(\"/api/reset\", async (c) => {\n const result = await resetBankroll();\n return c.json(result);\n});\n\napp.onError((err) => Promise.reject(err));\n\nexport default app.fetch;\n","deleted",false,"label",[19],{"_33":108,"_13":109,"_35":110,"_37":-5,"_38":39,"_40":69,"_42":43,"_44":111,"_17":77,"_47":86,"_49":-5,"_51":52,"_53":-5,"_61":112,"_18":113},{"_33":81,"_13":82,"_35":83,"_37":-5,"_38":39,"_40":84,"_42":43,"_44":85,"_17":77,"_47":86,"_49":-5,"_51":52,"_53":-5,"_61":87,"_18":88},{"_33":73,"_13":74,"_35":75,"_37":-5,"_38":39,"_40":69,"_42":43,"_44":76,"_17":77,"_47":24,"_49":78,"_51":52,"_53":-5,"_61":79,"_18":80},{"_33":64,"_13":65,"_35":66,"_37":-5,"_38":39,"_40":67,"_42":43,"_44":68,"_17":69,"_47":24,"_49":70,"_51":52,"_53":-5,"_61":71,"_18":72},{"_33":34,"_13":19,"_35":36,"_37":-5,"_38":39,"_40":41,"_42":43,"_44":60,"_17":46,"_47":48,"_49":50,"_51":52,"_53":-5,"_61":62,"_18":63},["D",1788919022922],"children",[],[19],"7ede1883-c42f-423f-8ad8-080c8459153e","README.md","01a083dd-a784-740f-ad04-33a510c07238",30,["D",1788919040637],1,"# 🏈 NFL Bet Slip\n\nA fake-money NFL betting app. Pick sides against the spread, the over/under,\nand moneylines on real games, and track your bankroll and record over the\nseason. **For fun only — no real money.**\n\n## Try it\n\n[Open the app](url:index.ts)\n\n## What it does\n\n- Pulls the current NFL slate with **real lines** (spreads, totals, moneylines)\n from [The Odds API](https://the-odds-api.com).\n- You start with a **$1,000 fake bankroll** and can place as many bets as your\n bankroll allows: against the spread, over/under, or moneyline.\n- Bets are **auto-settled** when games finish — your bankroll and record update\n automatically (medals: W / L / Push).\n- Moneyline bets pay out at the real American odds you locked in at placement;\n spreads and totals pay even money. The line you bet is stored on the ticket,\n so your pricing never moves after you place the bet.\n- A full bet history shows every ticket with its result.\n\n## Setup (one step)\n\nThe app needs a free **The Odds API** key (free tier: 500 requests/month, enough\nfor personal use — each page refresh uses a couple of credits):\n\n👉 Add ODDS_API_KEY here: https://www.val.town/x/michaelfreedman/nfl-betting-app/environment-variables?key=ODDS_API_KEY\n\n1. Grab a free key at (choose the Free plan).\n2. Add it as the `ODDS_API_KEY` environment variable using the link above.\n3. Reload the app — the slate and odds will appear.\n\n> Note: The Odds API reports the **NFL season's current slate** (regular season\n> onward). During the offseason there are no games with odds, and the app shows\n> an empty state.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|\"GET /\"| Hono[\"index.ts (Hono server)\"]\n Browser -->|\"/api/*\"| Hono\n Hono -->|fetch lines + scores| OA[\"The Odds API\"]\n Hono -->|read/write| DB[\"SQLite (bankroll + bets)\"]\n Hono -->|serves| UI[\"frontend/ (React + Twind)\"]\n UI -->|place bet / refresh| Hono\n```\n\n- `index.ts` — Hono backend: serves the SPA and the JSON API (`/api/games`,\n `/api/bets`, `/api/history`, `/api/reset`).\n- `lib/data.ts` — The Odds API client: fetches `odds` (lines) and `scores`\n (final results), merges them, maps team names to logos, and settles games.\n- `lib/db.ts` — SQLite layer: bankroll, bet placement, and bet settlement.\n- `frontend/lib/api.ts` + `frontend/components/` — the React UI.\n\n## Data + settlement details\n\n- `spread` is stored as the **home** team's line (negative = home favored).\n Spread picks settle against the final margin; a tie is a push (stake refunded).\n- `overUnder` bets push if the total lands exactly on the line.\n- On each load, finished games are settled against the **lines stored on your\n tickets** and the bankroll is credited/lossed atomically.\n- Team logos and abbreviations are resolved locally; odds and scores come live\n from The Odds API.\n\n[View source](url:index.ts/source)\n",[],[65],"32dab4e2-d7ca-4ee1-8925-605bff1ffb20","CHANGELOG.md","01a083dd-a784-740f-ad04-2ea34a70660d",["D",1788918736700],0,"# 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