React Router Hono Starter

\n \n

\n \n \n

\n \n );\n}\n\nfunction Home () {\n const [count, setCount] = React.useState(0);\n return (\n

Hello, Home page

{count}

\n \n

\n );\n}\n\nfunction About () {\n const data = useLoaderData();\n \n return (\n

Hello, About page

{JSON.stringify(data, null, 2)}

\n )\n}\n\nasync function catsLoader () {\n const data = await fetch(API_URL)\n .then(res => res.json());\n return data;\n}\n\nexport const routes = [\n {\n Component: Layout,\n children: [\n {\n Component: Home,\n index: true,\n },\n {\n Component: About,\n path: \"about\",\n loader: catsLoader,\n },\n ]\n },\n]\n\nexport default routes;",[159],"28372764-a2e9-11f0-a0a0-0224a6c84d84","client.tsx","0199baf5-7885-766a-9103-d548f5c6330b",["D",1759778273340],"/** @jsxImportSource https://esm.sh/react@19 */\nimport React from \"https://esm.sh/react@19\";\nimport ReactDOM from \"https://esm.sh/react-dom@19/client\";\nimport { createBrowserRouter, RouterProvider } from \"https://esm.sh/react-router\";\nimport routes from \"./routes.tsx\";\n\nconsole.log(\"client\");\n\nconst router = createBrowserRouter(routes);\n\nReactDOM.hydrateRoot(\n document, \n \n);",[166],"28371f6c-a2e9-11f0-a0a0-0224a6c84d84","README.md","0199baf5-7885-766a-9103-d2db4482bef9",["D",1759778273340],"# React Router Hono Starter\n\nMinimal React Router + Hono starter example in [\"data mode\"][modes] with server-side rendering for Val Town\n\n[View demo][demo]\n\n## How it works\n\nThe `server.tsx` file is the main server that responds with an HTML stream, using React Router, or an API response.\nThe HTML includes a `` to HTML to capture client-side errors\n- **Error Handling:** Only use try...catch when there's a clear local resolution; Avoid catches that merely log or return 500s. Let errors bubble up with full context\n- **Environment Variables:** Use `Deno.env.get('keyname')` when you need to, but generally prefer APIs that don't require keys\n- **Imports:** Use `https://esm.sh` for npm and Deno dependencies to ensure compatibility on server and browser\n- **Storage Strategy:** Only use backend storage if explicitly required; prefer simple static client-side sites\n- **React Configuration:** When using React libraries, pin versions with `?deps=react@18.2.0,react-dom@18.2.0` and start the file with `/** @jsxImportSource https://esm.sh/react@18.2.0 */`\n- Ensure all React dependencies and sub-dependencies are pinned to the same version\n- **Styling:** Default to using TailwindCSS via `` unless otherwise specified\n\n## Project Structure and Design Patterns\n\n### Recommended Directory Structure\n```\n├── backend/\n│ ├── database/\n│ │ ├── migrations.ts # Schema definitions\n│ │ ├── queries.ts # DB query functions\n│ │ └── README.md\n│ └── routes/ # Route modules\n│ ├── [route].ts\n│ └── static.ts # Static file serving\n│ ├── index.ts # Main entry point\n│ └── README.md\n├── frontend/\n│ ├── components/\n│ │ ├── App.tsx\n│ │ └── [Component].tsx\n│ ├── favicon.svg\n│ ├── index.html # Main HTML template\n│ ├── index.tsx # Frontend JS entry point\n│ ├── README.md\n│ └── style.css\n├── README.md\n└── shared/\n ├── README.md\n └── utils.ts # Shared types and functions\n```\n\n### Backend (Hono) Best Practices\n\n- Hono is the recommended API framework\n- Main entry point should be `backend/index.ts`\n- **Static asset serving:** Use the utility functions to read and serve project files:\n ```ts\n import { readFile, serveFile } from \"https://esm.town/v/std/utils@85-main/index.ts\";\n \n // serve all files in frontend/ and shared/\n app.get(\"/frontend/*\", c => serveFile(c.req.path, import.meta.url));\n app.get(\"/shared/*\", c => serveFile(c.req.path, import.meta.url));\n \n // For index.html, often you'll want to bootstrap with initial data\n app.get(\"/\", async c => {\n let html = await readFile(\"/frontend/index.html\", import.meta.url);\n \n // Inject data to avoid extra round-trips\n const initialData = await fetchInitialData();\n const dataScript = ``;\n \n html = html.replace(\"\", `${dataScript}`);\n return c.html(html);\n });\n ```\n- Create RESTful API routes for CRUD operations\n- Always include this snippet at the top-level Hono app to re-throwing errors to see full stack traces:\n ```ts\n // Unwrap Hono errors to see original error details\n app.onError((err, c) => {\n throw err;\n });\n ```\n\n### Database Patterns\n- Run migrations on startup or comment out for performance\n- Change table names when modifying schemas rather than altering\n- Export clear query functions with proper TypeScript typing\n\n## Common Gotchas and Solutions\n\n1. **Environment Limitations:** \n - Val Town runs on Deno in a serverless context, not Node.js\n - Code in `shared/` must work in both frontend and backend environments\n - Cannot use `Deno` keyword in shared code\n - Use `https://esm.sh` for imports that work in both environments\n\n2. **SQLite Peculiarities:**\n - Limited support for ALTER TABLE operations\n - Create new tables with updated schemas and copy data when needed\n - Always run table creation before querying\n\n3. **React Configuration:**\n - All React dependencies must be pinned to 18.2.0\n - Always include `@jsxImportSource https://esm.sh/react@18.2.0` at the top of React files\n - Rendering issues often come from mismatched React versions\n\n4. **File Handling:**\n - Val Town only supports text files, not binary\n - Use the provided utilities to read files across branches and forks\n - For files in the project, use `readFile` helpers\n\n5. **API Design:**\n - `fetch` handler is the entry point for HTTP vals\n - Run the Hono app with `export default app.fetch // This is the entry point for HTTP vals`\n\n",[178],"c137cd1a-a2e9-11f0-93c1-0224a6c84d84",["D",1759778530051],[27],"pulls","branches","forks","envVars",{"_194":59,"_196":59},"connections",{"_194":59,"_195":59},"count","unfilledCount","emptyCount",{"_40":184,"_31":27,"_29":30,"_150":-5,"_38":39,"_37":14,"_152":55,"_35":219,"_13":59,"_32":20,"_33":34,"_23":24,"_156":-5,"_204":220,"_26":221},{"_40":177,"_31":178,"_29":179,"_150":-5,"_38":39,"_37":180,"_152":55,"_35":216,"_13":59,"_32":20,"_33":182,"_23":24,"_156":-5,"_204":217,"_26":218},{"_40":171,"_31":172,"_29":173,"_150":-5,"_38":39,"_37":151,"_152":24,"_35":213,"_13":59,"_32":20,"_33":175,"_23":24,"_156":-5,"_204":214,"_26":215},{"_40":165,"_31":166,"_29":167,"_150":-5,"_38":39,"_37":151,"_152":55,"_35":210,"_13":59,"_32":162,"_33":169,"_23":24,"_156":-5,"_204":211,"_26":212},{"_40":158,"_31":159,"_29":160,"_150":-5,"_38":39,"_37":151,"_152":24,"_35":207,"_13":59,"_32":162,"_33":163,"_23":24,"_156":-5,"_204":208,"_26":209},{"_40":148,"_31":149,"_29":53,"_150":-5,"_38":39,"_37":151,"_152":55,"_35":203,"_13":59,"_32":154,"_33":155,"_23":24,"_156":-5,"_204":205,"_26":206},["D",1759778273340],"children",[],[149],["D",1759778273340],[],[159],["D",1759778273340],[],[166],["D",1759778273340],[],[172],["D",1759778530047],[],[178],["D",1759778530051],[],[27],["D",1759778273340],{"_97":96,"_105":101},{"_97":96,"_98":99,"_100":101,"_18":51,"_102":103,"_104":24},{"_13":82,"_31":83,"_40":39,"_84":41,"_85":86,"_87":88,"_89":47,"_90":91,"_92":93,"_94":42,"_95":96},"ctx",{"_75":-5,"_127":259,"_260":261,"_262":263,"_264":24,"_265":24,"_266":24,"_267":55,"_268":-5,"_269":-7,"_270":-7,"_271":59,"_272":24,"_273":24,"_274":-5,"_275":24,"_276":24,"_277":24,"_278":-5},"ENV",{"_230":231,"_232":233,"_234":83,"_235":236,"_237":238,"_239":240,"_241":242,"_243":244,"_245":246,"_247":248,"_249":250,"_251":252,"_253":254,"_255":256,"_257":258},"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"]

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