Hono vs Express 对比

// Hono - 在 Node.js 上使用 RPC 模式的类型安全 API
import { Hono } from 'hono'
import { serve } from '@hono/node-server'
import { hc } from 'hono/client'

const app = new Hono()

const route = app
  .get('/users/:id', (c) => {
    const id = c.req.param('id')
    return c.json({ id, name: 'Ayşe' })
  })
  .post('/users', async (c) => {
    const body = await c.req.json<{ name: string }>()
    return c.json({ id: '42', name: body.name }, 201)
  })
  .query('/users/:id', (c) => {
    // RFC 10008 HTTP QUERY —— 带请求体的安全读取
    return c.text('QUERY /users/:id')
  })

serve({ fetch: app.fetch, port: 3000 })

// 客户端类型安全调用
export type AppType = typeof route
const client = hc<AppType>('http://localhost:3000')
const res = await client.users[':id'].$get({ param: { id: '42' } })

// Express 5 —— async 路由处理器 + 错误捕获
import express from 'express'

const app = express()
app.use(express.json())

app.get('/users/:id', async (req, res) => {
  const id = req.params.id
  res.json({ id, name: 'Ayşe' })
})

app.post('/users', async (req, res) => {
  const { name } = req.body
  if (!name) {
    res.status(400).json({ error: 'name 为必填项' })
    return
  }
  res.status(201).json({ id: '42', name })
})

// Express 5：async 处理器抛出的错误会自动传递给 next(err)
app.use((err, req, res, next) => {
  res.status(500).json({ error: err.message })
})

app.listen(3000, () => console.log('Express 运行在 3000 端口'))