How can I split my koa routes into separate files?

Question

I'm trying to figure out how to split my routes into separate files.

I have this so far, but it doesn't work. I just get Not found when I try to access http://localhost:3001/api/things

//server.js var koa = require('koa'); var app = koa(); var router = require('koa-router');  app.use(router(app)); require('./routes')(app);   // routes.js module.exports = function *(app){   app.use('/api/things', require('./api/things')); };   // api/things/index.js  var Router = require('koa-router'); var router = new Router({   prefix: '/api/things' });  router.get('/', function *(){   this.body = [{ name: 'Foo'}, { name: 'Bar' }]; });  module.exports = router; 

Answer 1

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EDIT: I've updated the code examples below because the koa-router package on npm is no longer maintained. The Koa team has made an official fork of it under the name @koa/router.

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For anyone reading this, who is curious on how to do this in Koa 2.X:

app.js

import Koa from 'koa' import rootRouter from './routes/root' import userRouter from './routes/user'  const app = new Koa()  app.use(rootRouter.routes()) app.use(rootRouter.allowedMethods()) app.use(userRouter.routes()) app.use(userRouter.allowedMethods())  export default app 

routes/root.js

import Router from '@koa/router' const router = new Router()  router.get('/', async (ctx, next) => {   ctx.body = 'Hello' })  export default router 

routes/user.js

import Router from '@koa/router' const router = new Router({ prefix: '/user' })  router.get('/', async (ctx, next) => {   ctx.body = 'Some User' })  export default router 

If you want to avoid the repetition with the routes() and the allowedMethods(), you can use koa-compose to compose the middleware together. For simplicity, I made a wrapper around it to simplify working with koa-router. Using it would look something like this:

app.js

import Koa from 'koa' import router from './routes'  const app = new Koa()  app.use(router())  export default app   

routes/index.js

import combineRouters from 'koa-combine-routers' import rootRouter from './root' import userRouter from './user'  const router = combineRouters(   rootRouter,   userRouter )  export default router 

And it would do the same thing.

Answer 2

server.js

var app = require('koa')(); var router = require('./routes'); app.use(router.routes()); app.use(router.allowedMethods()); app.listen(3000); 

routes.js

var router = require('koa-router')(); router.get('/', function* () {     this.body = 'router test'; }); module.exports = router;