koa router 多文件引入的方法示例

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const book = require('./app/api/v1/book')
const classic = require('./app/api/v1/classic')
// ...
app.use(book.routes(), book.allowedMethods())
app.use(classic.routes(), classic.allowedMethods())
//...

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koa-demo/
 |-api/
  |-books.js
  |-classic.js
  |-users.js
  |-articles.js
 |-package.json
 |-app.js

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app.js

const Koa = require('koa')
const app = new Koa()
const book = require('./app/api/v1/book')
const classic = require('./app/api/v1/classic')

app.use(book.routes(), book.allowedMethods())
app.use(classic.routes(), classic.allowedMethods())

app.listen(3333)

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npm install require-directory

app.js

const Koa = require('koa')
const app = new Koa()
const Router = require('koa-router')
// 使ç¨require-directoryå è½½è·¯ç±æ件夹ä¸çæærouter
const requireDirectory = require('require-directory')

// å°ææçè·¯ç±å è½½ä¸,èªå¨å è½½ä»£ç 
const modules = requireDirectory(module, './api', { visit: whenLoadModule })

function whenLoadModule(obj) {
 if (obj instanceof Router) {
 app.use(obj.routes(), obj.allowedMethods())
 }
}

app.listen(3333)

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books.js

const Router = require('koa-router')
const router = new Router()

router.get('/v1/book/latest', (ctx, next) => {
 ctx.body = {
  key: 'book'
 }
})

module.exports = router

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