Koa koa combine routes sub route management

install ：npm install koa koa-router koa-body @koa/cors koa-json -S

          npm install koa-combine-routers -S  // Manage routes

koa-combine-routers - npm  // View the source code

First step ： initialization package.js        npm init -y

The second step ：npm install koa koa-router koa-body @koa/cors koa-json -S

              npm install koa-combine-routers -S  // Manage routes

The third step ： Catalog

  stay api Of a.js

function a (ctx){
    ctx.body = {
        "messgae":"a"
    }
}

module.exports = {
    a
}

  stay api Of b.js 

function a (ctx){
    ctx.body = {
        "messgae":"b"
    }
}

module.exports = {
    b
}

 routes Of documents aRouter.js

const KoaRouter = require('koa-router')
const  a = require("../api/a.js")

const router = new KoaRouter()

router.get('/a',a)

module.exports = router

  routes Of documents bRouter.js

const KoaRouter = require('koa-router')
const  b = require("../api/b")

const router = new KoaRouter()

router.get('/b',b)

module.exports = router

  Merge routes

const combineRoutes = require('koa-combine-routers')

const  aRouters = require("./aRouter")
const  bRouters = require("./bRouter")

module.exports = combineRoutes (
    aRouters,
    bRouters
)

 src Under the document index.js

//  Entrance file 
const koa = require('koa')
const app = new koa()
const router = require('./routes/routes')

app.use(router())

app.listen(3000)