Add eslint

.eslintrc.json

@@ -0,0 +1,16 @@
+{
+  "parser": "babel-eslint",
+  "extends": "airbnb",
+  "plugins": [
+    "react"
+  ],
+  "rules": {
+    "semi": [2, "never"],
+    "no-param-reassign": [2, { "props": false }],
+    "strict": 0
+  },
+  "env": {
+    "node": true,
+    "mocha": true
+  }
+}

package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "start": "node index.js",
-    "test": "NODE_ENV=test ./node_modules/.bin/mocha --compilers js:babel-register --require babel-polyfill"
+    "test": "NODE_ENV=test ./node_modules/.bin/mocha --compilers js:babel-register --require babel-polyfill",
+    "lint": "eslint src/**/*.js"
   },
   "keywords": [
     "koa",
@@ -28,7 +29,11 @@
     "koa-router": "^7.0.1"
   },
   "devDependencies": {
+    "babel-eslint": "^4.1.8",
     "babel-register": "^6.5.1",
+    "eslint": "^1.10.3",
+    "eslint-config-airbnb": "^5.0.0",
+    "eslint-plugin-react": "^3.16.1",
     "mocha": "^2.4.5",
     "should": "^8.2.2",
     "supertest": "^1.2.0"