diff --git a/app.js b/app.js
index 723f43a..67875be 100644
--- a/app.js
+++ b/app.js
@@ -1,15 +1,12 @@
 const Koa = require('koa')
 const app = new Koa()
 const path = require('path')
-const fs = require('fs')
 const config = require('./config')
 
 // require middleware
 const cors = require('kcors')
-const koaBody = require('koa-body')
 const koaSession = require('koa-session2')
 const koaLogger = require('koa-logger')
-const koaMount = require('koa-mount')
 const koaStatic = require('koa-static')
 
 if (process.env['NODE_ENV'] !== 'test') {
@@ -30,4 +27,4 @@ const server = app.listen(config.port, () => {
   console.log(`start on port ${server.address().port}`)
 })
 
-module.exports = server
\ No newline at end of file
+module.exports = server
diff --git a/config/index.js b/config/index.js
index c613339..00d8612 100644
--- a/config/index.js
+++ b/config/index.js
@@ -6,6 +6,6 @@ module.exports = {
     port: process.env.DB_PORT || 5432,
     db: process.env.DB_NAME || 'mystorage',
     user: process.env.DB_USER || 'postgres',
-    pass: process.env.DB_PASS || '',
+    pass: process.env.DB_PASS || ''
   }
-}
\ No newline at end of file
+}
diff --git a/index.js b/index.js
index a7a9110..3751745 100644
--- a/index.js
+++ b/index.js
@@ -1,3 +1,3 @@
 process.env.__BASE = __dirname
 
-const server = require('./app')
+require('./app')
diff --git a/route/index.js b/route/index.js
index a37c404..f4f697a 100644
--- a/route/index.js
+++ b/route/index.js
@@ -5,7 +5,7 @@ r.use('/api', require('./api').routes())
 
 r.get('/', async (c, n) => {
   c.status = 200
-  c.body = ""
+  c.body = ''
 })
 
 module.exports = r
diff --git a/route/utils/message/index.js b/route/utils/message/index.js
index 98a0c36..95eb93b 100644
--- a/route/utils/message/index.js
+++ b/route/utils/message/index.js
@@ -13,4 +13,4 @@ module.exports = {
       message: 'Internal Error'
     }
   }
-}
\ No newline at end of file
+}
diff --git a/test/api/index.js b/test/api/index.js
index e6a2aa7..949afa4 100644
--- a/test/api/index.js
+++ b/test/api/index.js
@@ -1,10 +1,12 @@
-
+/* eslint-disable no-unused-vars */
+/* eslint-disable no-undef */
+/* eslint-disable no-unused-expressions */
 it('api root test', done => {
   chai.request(server)
     .get('/api')
     .end((err, res) => {
       chai.expect(err).to.be.null
-      chai.expect(res).to.be.status(200)
+      chai.expect(res).to.have.status(200)
       done()
     })
-})
\ No newline at end of file
+})
diff --git a/test/index.js b/test/index.js
index 191db16..e6fa005 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,3 +1,5 @@
+/* eslint-disable no-undef */
+/* eslint-disable no-unused-vars */
 process.env['NODE_ENV'] = 'test'
 global.chai = require('chai')
 global.chaiHttp = require('chai-http')
@@ -5,7 +7,6 @@ global.server = require('../app')
 
 global.chai.use(chaiHttp)
 
-
 global.importTest = (name, path) => {
   describe(name, () => {
     require(path)
@@ -14,4 +15,4 @@ global.importTest = (name, path) => {
 
 describe('Project Test', () => {
   importTest('Test API', './api')
-})
\ No newline at end of file
+})