nitro

name nitro description Nitro is the framework-agnostic server toolkit (powering Nuxt) for building and deploying web servers anywhere. Use when working with nitro.config, server routes/event handlers, route rules, caching, storage, tasks, websockets, or deploying to Node/Bun/Deno/Cloudflare/Vercel. metadata {"author":"Anthony Fu","version":"2026.6.22","source":"Generated from https://github.com/nitrojs/nitro, scripts located at https://github.com/antfu/skills"} The skill is based on Nitro v3 (beta), generated at 2026-06-22. Nitro is a framework-agnostic, deployment-agnostic server toolkit powered by H3 v2, unstorage , and Vite/Rolldown/Rollup. It powers Nuxt and works standalone. From one codebase it builds optimized output for Node.js, Bun, Deno, Cloudflare, Vercel, Netlify, and more. Key capabilities: Filesystem routing with H3 v2 event handlers, dynamic params, and method suffixes. Route rules for declarative caching, headers, redirects, proxying, and auth. Caching layer (cached handlers/functions, SWR) on top of unstorage KV. Runtime config overridable via NITRO_* env vars. Tasks (on-demand + scheduled/cron), WebSockets /SSE, a SQL database layer, and OpenAPI auto-docs. Plugins & lifecycle hooks , custom renderer / server entry , and portable deployment presets . Nitro v3 renamed the package nitropack → nitro and adopts H3 v2 (web-standard Request / Response ). If unsure about v2-vs-v3 APIs, read advanced-migration first. Core Topic Description Reference Routing File-based routes, defineHandler , params, middleware, route rules, errors core-routing Configuration nitro.config.ts , defineConfig , key options, runtime config core-configuration Storage unstorage KV, mount points, drivers, dynamic mounts core-storage Cache defineCachedHandler , defineCachedFunction , SWR, invalidation core-cache Assets Public assets, compression, server assets via storage core-assets Rendering Renderer (HTML/SSR), server entry, framework integration core-rendering Features Topic Description Reference Plugins & Hooks definePlugin , runtime lifecycle hooks, error capture features-plugins Tasks On-demand & scheduled (cron) tasks, runTask features-tasks WebSocket & SSE defineWebSocketHandler , pub/sub, namespaces, event streams features-websocket Database Built-in SQL layer via db0, useDatabase , connectors features-database OpenAPI Auto spec from defineRouteMeta , Scalar/Swagger UIs features-openapi Advanced / Deployment Topic Description Reference Deployment Presets Runtimes & providers, compatibility dates, platform integration deploy-presets v2 → v3 Migration Package rename, nitro/* imports, H3 v2 API, preset changes advanced-migration