move logging setup to server.js

src/app.js

@@ -1,12 +1,15 @@
 import Koa from 'koa'
 import Router from 'koa-router'
 import JSON from 'koa-json'
-import Logger from 'koa-logger'
 
 const App = (counter) => {
   const app = new Koa()
   const router = new Router()
   
+  app.use(router.routes())
+     .use(router.allowedMethods())
+     .use(JSON({pretty: true}))
+
   app.on('error', (err, ctx) => {
     console.error('server error', err, ctx)
   });
@@ -24,11 +27,6 @@ const App = (counter) => {
   router.get('/clicks/:id', async ctx => {
     ctx.body = { [ctx.params.id]: await counter.state(ctx.params.id) }
   });
-  
-  app.use(Logger())
-     .use(JSON({pretty: true}))
-     .use(router.routes())
-     .use(router.allowedMethods())
 
   return app
 }

src/server.js

@@ -1,4 +1,5 @@
 import Redis from 'async-redis'
+import Logger from 'koa-logger'
 
 import App from './app'
 import Counter from './counter'
@@ -11,6 +12,9 @@ const LISTEN_PORT = process.env.LISTEN_PORT || 3000
 const redis = Redis.createClient(REDIS_PORT, REDIS_HOST)
 const counter = new Counter(redis)
 const app = App(counter)
+
+app.use(Logger())
+
 app.listen(LISTEN_PORT)
 
 console.log(`Redis connection: ${REDIS_HOST}:${REDIS_PORT}`)