I Ă„ratal innebar valet av JavaScript-webbramverk en kompromiss: Express var universellt men lĂ„ngsamt och bundet till Node, Fastify var snabbt men bara Node, Next.js var fullfjĂ€drat men tungt. NĂ€r edge-runtimes â Cloudflare Workers, Deno Deploy, Bun, Vercel Edge â kom, visade dessa ramverk sina grĂ€nser.
Hono (japanska för "lĂ„ga" đ„) Ă€r det moderna svaret. Ett ramverk under 14KB, helt byggt pĂ„ Web Standards (Request, Response, fetch), som körs överallt dĂ€r det finns en JavaScript-runtime. Samma kod deployas till Cloudflare Workers, Bun, Deno, Node.js, Vercel, Netlify och AWS Lambda â utan Ă€ndringar.
Varför Hono
- Prestanda.
RegExpRouterkompilerar alla route-mönster till en enda regex. Benchmarks överstiger 400 000 ops/s. - Portabilitet. Web Standards innebÀr noll Node-beroenden. Samma
app.fetchexporteras som default i en Cloudflare Worker, skickas tillBun.serve, monteras i en Deno-server eller adapteras med@hono/node-server. - TypeScript-first DX. Path-parametrar hÀrleds som literal types, end-to-end typsÀker RPC-klient.
Komma igÄng
npm create hono@latest my-api cd my-api npm install npm run dev
// src/index.ts import { Hono } from 'hono' const app = new Hono() app.get('/', (c) => c.text('Hello Hono!')) export default app
PÄ Cloudflare Workers rÀcker detta. PÄ Bun: Bun.serve({ fetch: app.fetch, port: 3000 }). PÄ Node: serve({ fetch: app.fetch }) frÄn @hono/node-server.
Routing
import { Hono } from 'hono' const app = new Hono() app.get('/', (c) => c.text('Home')) app.get('/posts/:id', (c) => { const id = c.req.param('id') return c.json({ id }) }) app.get('/posts/:id/comments/:commentId', (c) => { const { id, commentId } = c.req.param() return c.json({ id, commentId }) }) app.get('/files/*', (c) => c.text('Wildcard')) app.post('/posts', async (c) => { const body = await c.req.json() return c.json({ created: body }, 201) })
Gruppera routes
// routes/posts.ts import { Hono } from 'hono' const posts = new Hono() posts.get('/', (c) => c.json({ posts: [] })) posts.get('/:id', (c) => c.json({ id: c.req.param('id') })) export default posts // src/index.ts import { Hono } from 'hono' import posts from './routes/posts' const app = new Hono() app.route('/posts', posts)
Context-objektet
app.post('/echo', async (c) => { const userAgent = c.req.header('User-Agent') const page = c.req.query('page') const body = await c.req.json() const env = c.env c.set('requestId', crypto.randomUUID()) const id = c.get('requestId') c.header('X-Request-Id', id) c.status(200) return c.json({ userAgent, page, body, id }) })
Middleware: lökmodellen
import { Hono } from 'hono' import { logger } from 'hono/logger' import { cors } from 'hono/cors' import { secureHeaders } from 'hono/secure-headers' const app = new Hono() app.use('*', logger()) app.use('*', secureHeaders()) app.use('/api/*', cors({ origin: 'https://spinny.dev' })) app.use('*', async (c, next) => { const start = performance.now() await next() c.header('X-Response-Time', `${performance.now() - start}ms`) })
Inbyggd middleware
| Middleware | Funktion |
|---|---|
logger | Strukturerade loggar för metod, sökvÀg, status, varaktighet |
cors | CORS konfigurerbart per origin, metoder, headers |
csrf | Origin-baserat CSRF-skydd |
secureHeaders | SĂ€tter CSP, HSTS, X-Frame-Options |
bearerAuth / basicAuth | FĂ€rdig Bearer/Basic-autentisering |
jwt | Verifiera/signera JWT med jose |
etag | Genererar ETag och hanterar 304 |
cache | Cache via Web Cache API |
compress | gzip/deflate pÄ svar |
bodyLimit | Avvisar bodys över tröskel |
timing | Server-Timing-header för profilering |
TypsÀker custom middleware
import { createMiddleware } from 'hono/factory' type AuthVars = { userId: string; role: 'user' | 'admin' } export const requireAuth = createMiddleware<{ Variables: AuthVars }>( async (c, next) => { const token = c.req.header('Authorization')?.replace('Bearer ', '') if (!token) return c.json({ error: 'Unauthorized' }, 401) const payload = await verifyJwt(token) c.set('userId', payload.sub) c.set('role', payload.role) await next() } ) app.get('/me', requireAuth, (c) => { const userId = c.var.userId return c.json({ userId }) })
Validering med Zod
import { Hono } from 'hono' import { zValidator } from '@hono/zod-validator' import { z } from 'zod' const createPost = z.object({ title: z.string().min(1).max(200), body: z.string().min(1), tags: z.array(z.string()).default([]), }) app.post( '/posts', zValidator('json', createPost), (c) => { const data = c.req.valid('json') return c.json({ ok: true, post: data }, 201) } )
RPC: typsÀker klient end-to-end
// server.ts import { Hono } from 'hono' import { zValidator } from '@hono/zod-validator' import { z } from 'zod' const app = new Hono() .get('/posts/:id', (c) => c.json({ id: c.req.param('id'), title: 'Hello' }) ) .post( '/posts', zValidator('json', z.object({ title: z.string(), body: z.string() })), (c) => c.json({ ok: true }, 201) ) export type AppType = typeof app export default app
// client.ts import { hc } from 'hono/client' import type { AppType } from './server' const client = hc<AppType>('https://api.spinny.dev') const res = await client.posts[':id'].$get({ param: { id: '42' } }) if (res.ok) { const data = await res.json() console.log(data.title) } const created = await client.posts.$post({ json: { title: 'Hej', body: 'Hono Àr en lÄga' }, })
Statuskodsdiskriminering
.get('/posts/:id', (c) => { const post = findPost(c.req.param('id')) if (!post) return c.json({ error: 'not found' }, 404) return c.json({ post }, 200) })
const res = await client.posts[':id'].$get({ param: { id } }) if (res.status === 404) { const { error } = await res.json() } if (res.status === 200) { const { post } = await res.json() }
Routrar och prestanda
| Router | Styrkor | NÀr anvÀnda |
|---|---|---|
RegExpRouter | Maxhastighet, kompilerad regex | Standard för de flesta API:er |
TrieRouter | Stöder alla mönster | Komplexa mönster RegExp inte hanterar |
SmartRouter | VÀljer bÀsta automatiskt | Rekommenderad standard |
LinearRouter | Ultrasnabb registrering | One-shot-workers, kritisk cold start |
PatternRouter | Minimal bundle (<15KB) | Extrema storleksbegrÀnsningar |
import { Hono } from 'hono' import { LinearRouter } from 'hono/router/linear-router' const app = new Hono({ router: new LinearRouter() })
Multi-runtime-deploy
Cloudflare Workers
import { Hono } from 'hono' type Bindings = { MY_KV: KVNamespace; DB: D1Database } const app = new Hono<{ Bindings: Bindings }>() app.get('/cache/:key', async (c) => { const value = await c.env.MY_KV.get(c.req.param('key')) return c.json({ value }) }) export default app
Deploy: npx wrangler deploy.
Bun
import { Hono } from 'hono' const app = new Hono() app.get('/', (c) => c.text('Bun + Hono')) Bun.serve({ fetch: app.fetch, port: 3000 })
Node.js
import { serve } from '@hono/node-server' import { Hono } from 'hono' const app = new Hono() app.get('/', (c) => c.text('Node + Hono')) serve({ fetch: app.fetch, port: 3000 })
Deno
import { Hono } from 'jsr:@hono/hono' const app = new Hono() app.get('/', (c) => c.text('Deno + Hono')) Deno.serve(app.fetch)
Vercel
// api/[[...route]].ts import { Hono } from 'hono' import { handle } from 'hono/vercel' const app = new Hono().basePath('/api') app.get('/hello', (c) => c.json({ msg: 'Hello from Vercel' })) export const GET = handle(app) export const POST = handle(app)
Praktiskt exempel: REST API med auth och DB
import { Hono } from 'hono' import { jwt } from 'hono/jwt' import { logger } from 'hono/logger' import { cors } from 'hono/cors' import { zValidator } from '@hono/zod-validator' import { z } from 'zod' type Bindings = { DB: D1Database; JWT_SECRET: string } type Variables = { jwtPayload: { sub: string } } const app = new Hono<{ Bindings: Bindings; Variables: Variables }>() app.use('*', logger()) app.use('/api/*', cors({ origin: 'https://spinny.dev', credentials: true })) const auth = (c: any, next: any) => jwt({ secret: c.env.JWT_SECRET })(c, next) const api = app.basePath('/api') api.get('/posts', async (c) => { const { results } = await c.env.DB .prepare('SELECT id, title, created_at FROM posts ORDER BY created_at DESC LIMIT 50') .all() return c.json({ posts: results }) }) api.post( '/posts', auth, zValidator('json', z.object({ title: z.string().min(1).max(200), body: z.string().min(1), })), async (c) => { const { title, body } = c.req.valid('json') const userId = c.var.jwtPayload.sub const result = await c.env.DB .prepare('INSERT INTO posts (title, body, author_id) VALUES (?, ?, ?) RETURNING id') .bind(title, body, userId) .first<{ id: number }>() return c.json({ id: result?.id }, 201) } ) api.onError((err, c) => { console.error(err) return c.json({ error: 'Internal error' }, 500) }) export type AppType = typeof api export default app
Tester
import { describe, it, expect } from 'vitest' import app from '../src/index' describe('GET /api/posts', () => { it('returnerar listan med inlÀgg', async () => { const res = await app.request('/api/posts') expect(res.status).toBe(200) const body = await res.json() expect(body.posts).toBeInstanceOf(Array) }) })
BĂ€sta praxis
1. Kedja routedefinitioner
const app = new Hono() .get('/posts', handler1) .post('/posts', handler2) .get('/posts/:id', handler3)
2. Exportera typen, inte implementationen
Klienten mÄste importera AppType.
3. En router per domÀn
Sub-app för posts, users, webhooks.
4. Validering vid kanten, alltid
Varje extern input mÄste gÄ genom zValidator.
5. Luta dig pÄ bindings, inte globala klienter
PÄ Cloudflare nÄs KV/D1/R2 via c.env.
6. MĂ€t innan du optimerar routern
Standard-SmartRouter passar 95% av fallen.
Slutsats
Hono har 2026 blivit de facto-standarden för att bygga edge-redo API:er i TypeScript.
Komma-igÄng-checklista:
npm create hono@latestoch vÀlj din runtime-mall- Definiera routes med kedjning (
.get(...).post(...))- LĂ€gg till
logger,cors,secureHeaderssom global middleware- Validera varje input med
@hono/zod-validator- Exportera
AppTypeoch konsumera API:et med typsÀkerhc-klient- Skriv tester med
app.request()â ingen HTTP-server behövs- Deploya med
wrangler deploy(CF),vercel deployeller din runtimes bundler