Hono App API

import { Hono } from 'hono'
 
const app = new Hono()
 
export default app

app.get('/path', handler)
app.post('/path', handler)
app.put('/path', handler)
app.delete('/path', handler)
app.patch('/path', handler)
app.all('/path', handler)
app.on(['GET', 'POST'], '/path', handler)

app.use(middleware)
app.route('/prefix', subApp)
app.basePath('/api')

app.notFound((c) => {
  return c.text('Custom 404', 404)
})
 
app.onError((err, c) => {
  console.error(err)
  return c.text('Custom Error', 500)
})

// Cloudflare Workers/Bun
export default app
 
// Or with custom config
export default {
  fetch: app.fetch,
  port: 3000, // Bun only
}

const res = await app.request('/hello')
expect(res.status).toBe(200)
 
// With Request object
const req = new Request('http://localhost/api', {
  method: 'POST',
})
const res = await app.request(req)

import { Router as IttyRouter } from 'itty-router'
 
const ittyRouter = IttyRouter()
ittyRouter.get('/hello', () => new Response('Hello'))
 
app.mount('/itty', ittyRouter.handle)

const app = new Hono({ strict: false })
// Now /hello and /hello/ are treated the same

import { RegExpRouter } from 'hono/router/reg-exp-router'
 
const app = new Hono({ router: new RegExpRouter() })

type Bindings = {
  TOKEN: string
  DB: D1Database
}
 
type Variables = {
  user: User
}
 
const app = new Hono<{
  Bindings: Bindings
  Variables: Variables
}>()
 
app.use('/auth/*', async (c, next) => {
  const token = c.env.TOKEN // string
  c.set('user', user) // User
  await next()
})