DEV Community

Alex Spinov
Alex Spinov

Posted on

Nitro Has a Free Server Framework: Build Universal Server Apps That Deploy Anywhere — Node, Deno, Workers, Lambda

#javascript #typescript #serverless #backend

You build a Node.js API. Then marketing wants it on Cloudflare Workers. Then the enterprise client needs it on AWS Lambda. You rewrite the deployment layer three times.

What if you wrote your server once and deployed it to ANY provider — Node.js, Deno, Bun, Cloudflare Workers, AWS Lambda, Vercel, Netlify — with zero code changes?

That's Nitro. The server engine behind Nuxt, now available as a standalone framework.

Quick Start 

npx giget@latest nitro my-server
cd my-server && npm install && npm run dev
Enter fullscreen mode Exit fullscreen mode

File-Based API Routes 

server/
  routes/
    index.ts             ← GET /
    users/
      index.ts           ← GET /users
      [id].ts            ← GET /users/:id
      index.post.ts      ← POST /users
  middleware/
    auth.ts              ← runs before every request
  plugins/
    database.ts          ← server lifecycle hooks
Enter fullscreen mode Exit fullscreen mode 
// server/routes/users/[id].ts
export default defineEventHandler(async (event) => {
  const id = getRouterParam(event, "id");
  const user = await db.users.findUnique({ where: { id } });

  if (!user) {
    throw createError({ statusCode: 404, message: "User not found" });
  }

  return user;
});

// server/routes/users/index.post.ts
export default defineEventHandler(async (event) => {
  const body = await readBody(event);
  const user = await db.users.create({ data: body });
  return user;
});
Enter fullscreen mode Exit fullscreen mode

Deploy Anywhere — Zero Code Changes 

# Node.js server
NITRO_PRESET=node npx nitropack build

# Cloudflare Workers
NITRO_PRESET=cloudflare-module npx nitropack build

# AWS Lambda
NITRO_PRESET=aws-lambda npx nitropack build

# Vercel Edge
NITRO_PRESET=vercel-edge npx nitropack build

# Deno Deploy
NITRO_PRESET=deno-deploy npx nitropack build

# Bun
NITRO_PRESET=bun npx nitropack build

# Static (pre-rendered)
NITRO_PRESET=static npx nitropack build
Enter fullscreen mode Exit fullscreen mode

Same source code. 15+ deployment targets. Nitro adapts your server to each platform's runtime automatically.

Built-in Features

Caching 

export default defineCachedEventHandler(async (event) => {
  // This response is cached for 60 seconds
  const data = await expensiveQuery();
  return data;
}, {
  maxAge: 60,
  staleMaxAge: 600, // Serve stale for 10min while revalidating
});
Enter fullscreen mode Exit fullscreen mode

Scheduled Tasks (Cron) 

// server/tasks/cleanup.ts
export default defineTask({
  meta: { description: "Clean up expired sessions" },
  run: async () => {
    await db.sessions.deleteMany({ where: { expiresAt: { lt: new Date() } } });
    return { result: "Cleaned up expired sessions" };
  },
});

// nitro.config.ts
export default defineNitroConfig({
  scheduledTasks: {
    "*/30 * * * *": ["cleanup"], // Every 30 minutes
  },
});
Enter fullscreen mode Exit fullscreen mode

KV Storage (Universal) 

export default defineEventHandler(async () => {
  const storage = useStorage("cache");

  // Works with memory, Redis, Cloudflare KV, S3 — same API
  await storage.setItem("key", { data: "value" });
  const value = await storage.getItem("key");

  return value;
});
Enter fullscreen mode Exit fullscreen mode

WebSockets 

// server/routes/_ws.ts
export default defineWebSocketHandler({
  open(peer) {
    peer.send("Welcome!");
    peer.subscribe("chat");
  },
  message(peer, message) {
    peer.publish("chat", message.text());
  },
  close(peer) {
    peer.unsubscribe("chat");
  },
});
Enter fullscreen mode Exit fullscreen mode

When to Choose Nitro

Choose Nitro when:

  • You need to deploy the same API to multiple providers
  • You want file-based routing without a full-stack framework
  • Built-in caching, storage, and WebSocket support matters
  • You're building microservices or API-only backends

Skip Nitro when:

  • You need a full-stack framework with SSR (use Nuxt, which uses Nitro internally)
  • You only target one platform (Express or Hono might be simpler)
  • You need a large ecosystem of middleware (Express has more)

The Bottom Line

Nitro is infrastructure-agnostic by design. Write your server logic once, deploy it everywhere — from a $5 VPS to Cloudflare's edge network. The platform is a configuration detail, not a rewrite.

Start here: nitro.build

Need custom data extraction, scraping, or automation? I build tools that collect and process data at scale — 78 actors on Apify Store and 265+ open-source repos. Email me: Spinov001@gmail.com | My Apify Actors

Top comments (0)