Add linter

Author: codeaholicguy

.eslintrc.json

@@ -0,0 +1,12 @@
+{
+  "env": {
+    "node": true
+  },
+  "extends": ["standard"],
+  "rules": {
+    "comma-dangle": ["error", "always-multiline"],
+    "eqeqeq": "error",
+    "no-extra-semi": "error",
+    "object-curly-spacing": ["error", "never"]
+  }
+}

.prettierrc

@@ -4,11 +4,11 @@
   "semi": false,
   "singleQuote": true,
   "printWidth": 80,
-  "trailingComma": "es5",
+  "trailingComma": "all",
   "overrides": [
     {
       "files": ["*.json", ".prettierrc", ".babelrc"],
-      "options": { "parser": "json" }
+      "options": {"parser": "json"}
     }
   ]
 }

index.js

@@ -78,7 +78,7 @@ const createOnRequestHandler = ({
 const createOnSendHandler = ({ttl, additionalCondition: {headers}}) => async (
   req,
   res,
-  payload
+  payload,
 ) => {
   if (!isCacheableRequest(req)) {
     return
@@ -92,14 +92,14 @@ const createOnSendHandler = ({ttl, additionalCondition: {headers}}) => async (
       statusCode: res.statusCode,
       payload,
     }),
-    ttl
+    ttl,
   )
 }
 
 const responseCachingPlugin = (
   instance,
   {ttl = 1000, additionalCondition = {}},
-  next
+  next,
 ) => {
   const headers = additionalCondition.headers || []
   const opts = {ttl, additionalCondition: {headers}}