Deploying Hono Apps
Ultra-lightweight edge-first web framework, deploy to Cloudflare Workers, Vercel Edge, Deno, or Bun.
PlatformsIntermediate
Why
Hono is a 14KB web framework designed for edge runtimes with zero dependencies and TypeScript-first types. It runs identically on Cloudflare Workers, Deno, Bun, and Node, making it the most portable edge framework.
Platform-as-a-Service adoption grew 24% in 2024 as teams shift from VM management to git-push deploys. the cloud infrastructure market reached $330B in 2024, growing 22% year-over-year (Synergy Research), and PaaS layers capture the majority of new workloads.
When
Use Hono for edge APIs, webhooks, and lightweight backends on Workers/Deno/Bun. Prefer over Express when edge deployment or sub-millisecond cold starts matter.
How
1. Build — Hono needs no build step, runs directly on edge runtimes
2. Cloudflare Workers — wrangler deploy, uses Hono's CF adapter
3. Vercel Edge — export const config = { runtime: "edge" }, Hono handles Request
4. Deno — deno run --allow-net server.ts, no build needed
5. Bun — bun run server.ts, fastest JS runtime for Hono
6. Node — @hono/node-server adapter for traditional deploy
7. Middleware — app.use() for auth, logging, CORS at edge
Example
// src/index.ts — Hono app (runtime-agnostic)
import { Hono } from "hono";
import { cors } from "hono/cors";
const app = new Hono();
app.use("*", cors());
app.get("/", (c) => c.json({ message: "Hello from Hono" }));
app.post("/api/webhook", async (c) => {
const body = await c.req.json();
return c.json({ received: true });
});
export default app; // Works on CF Workers, Vercel Edge, Deno, Bun
// wrangler.toml — Cloudflare Workers
name = "my-hono-api"
main = "src/index.ts"
compatibility_date = "2024-01-01"
// Deploy: npx wrangler deploy
// Vercel: export default app (auto-detected as edge)
Common Problems
- ⚠Node APIs not available on edge — Hono runs on Web standard APIs, no fs/process on Workers
- ⚠Body parsing fails — forgot await c.req.json(), body is a stream consumed once
- ⚠Type errors with middleware — use Variables type generic to type app context
Best Practices
- ✓Use Hono's built-in validators (zod-validator) for type-safe request parsing at edge
- ✓Deploy to Bun for dev/testing and Cloudflare Workers for production — same code, best runtime per env
- ✓Set up health checks and graceful shutdown — handle SIGTERM to drain in-flight requests before exit