Uptime Status

\n {rows.map(row => (\n \n ))}\n

Response times

\n row[2])}\n stroke=\"rgba(0, 10, 150, 0.5)\" // blue\n />\n

\n );\n}\n\nfunction StatusSection({ site, rows }) {\n const sectionRows = rows.filter(row => row[0] === site.url);\n const percentUp = Math.round((sectionRows.filter(row => row[1]).length / sectionRows.length) * 100);\n return (\n

{site.name}

{percentUp}% uptime

\n \n

\n );\n}\n\nexport default async function(req: Request): Promise {\n const { rows } = await sqlite.execute(\n \"select url, ok, duration, timestamp from uptime order by timestamp desc limit 200\",\n );\n return html(renderToString(\n \n \n Uptime Status\n \n ` 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",[200],"f4c53bfe-aaff-11f0-b516-0224a6c84d84",".vtignore","f4c53c8a-aaff-11f0-b516-0224a6c84d84",11,["D",1760667674835],".git\n.vscode\n.cursorrules\n.DS_Store\nnode_modules\nvendor",[207],"pulls","branches","forks","envVars",{"_220":61,"_222":61},"connections",{"_220":61,"_221":61},"count","unfilledCount","emptyCount",{"_42":206,"_32":207,"_30":208,"_151":-5,"_40":41,"_39":209,"_153":57,"_37":257,"_13":61,"_33":20,"_34":211,"_24":25,"_158":-5,"_233":258,"_27":259},{"_42":199,"_32":200,"_30":201,"_151":-5,"_40":41,"_39":202,"_153":25,"_37":254,"_13":61,"_33":20,"_34":204,"_24":25,"_158":-5,"_233":255,"_27":256},{"_42":193,"_32":194,"_30":195,"_151":-5,"_40":41,"_39":163,"_153":25,"_37":251,"_13":61,"_33":20,"_34":197,"_24":25,"_158":-5,"_233":252,"_27":253},{"_42":189,"_32":28,"_30":31,"_151":-5,"_40":41,"_39":14,"_153":25,"_37":248,"_13":191,"_33":20,"_34":36,"_24":25,"_158":-5,"_233":249,"_27":250},{"_42":182,"_32":183,"_30":184,"_151":-5,"_40":41,"_39":185,"_153":25,"_37":245,"_13":61,"_33":20,"_34":187,"_24":25,"_158":-5,"_233":246,"_27":247},{"_42":174,"_32":175,"_30":176,"_151":-5,"_40":41,"_39":177,"_153":25,"_37":242,"_13":163,"_33":179,"_34":180,"_24":25,"_158":-5,"_233":243,"_27":244},{"_42":168,"_32":169,"_30":170,"_151":-5,"_40":41,"_39":163,"_153":57,"_37":239,"_13":61,"_33":165,"_34":172,"_24":25,"_158":-5,"_233":240,"_27":241},{"_42":160,"_32":161,"_30":162,"_151":-5,"_40":41,"_39":163,"_153":57,"_37":236,"_13":61,"_33":165,"_34":166,"_24":25,"_158":-5,"_233":237,"_27":238},{"_42":150,"_32":44,"_30":55,"_151":-5,"_40":41,"_39":152,"_153":25,"_37":232,"_13":155,"_33":156,"_34":157,"_24":25,"_158":-5,"_233":234,"_27":235},["D",1760667674335],"children",[],[44],["D",1758426923872],[],[161],["D",1758426923872],[],[169],["D",1760667674369],[],[175],["D",1760667674385],[],[183],["D",1760667675113],[],[28],["D",1758426923872],[],[194],["D",1760667674396],[],[200],["D",1760667674835],[],[207],["D",1758426923872],{"_99":98,"_106":102},{"_99":98,"_100":-5,"_101":102,"_18":53,"_103":104,"_105":25},{"_13":84,"_32":85,"_42":41,"_86":43,"_87":88,"_89":90,"_91":49,"_92":93,"_94":95,"_96":44,"_97":98},"ctx",{"_77":-5,"_128":297,"_298":299,"_300":301,"_302":25,"_303":25,"_304":25,"_305":57,"_306":-5,"_307":-7,"_308":-7,"_309":61,"_310":25,"_311":25,"_312":-5,"_313":25,"_314":25,"_315":25,"_316":-5},"ENV",{"_268":269,"_270":271,"_272":85,"_273":274,"_275":276,"_277":278,"_279":280,"_281":282,"_283":284,"_285":286,"_287":288,"_289":290,"_291":292,"_293":294,"_295":296},"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"]

Diff · v12