From 5e79857e9a8231b2a890eeff54fe8e012c16890f Mon Sep 17 00:00:00 2001
From: Gabriel Csapo <gabecsapo@gmail.com>
Date: Fri, 11 Aug 2017 00:15:08 -0700
Subject: [PATCH] static server caching - adds caching to static-server

---
 CHANGELOG.md                 |  1 +
 lib/helpers/static-server.js | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 735ce33..1c27fba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Unreleased
 
+- adds caching to static-server 
 - abstract models into their own files and their own collections
 - fixes the middleware request logger
 - fixes CLI responses
diff --git a/lib/helpers/static-server.js b/lib/helpers/static-server.js
index 0d3242c..8a9650b 100644
--- a/lib/helpers/static-server.js
+++ b/lib/helpers/static-server.js
@@ -20,6 +20,8 @@ const map = {
   '.doc': 'application/msword'
 };
 
+const cache = {};
+
 http.createServer((req, res) => {
   let { url } = req;
 
@@ -30,6 +32,11 @@ http.createServer((req, res) => {
   const parsedUrl = Url.parse(url);
   let pathname = `.${parsedUrl.pathname}`;
 
+  if(cache[pathname]) {
+    res.setHeader('Content-Type', cache[pathname]['Content-Type']);
+    return res.end(cache[pathname]['data']);
+  }
+
   const ext = path.parse(pathname).ext;
 
   fs.exists(pathname, (exist) => {
@@ -46,8 +53,12 @@ http.createServer((req, res) => {
         res.statusCode = 500;
         res.end(`Error getting the file: ${err}.`);
       } else {
+        cache[pathname] = {
+          'Content-Type': map[ext] || 'text/plain',
+          data
+        };
         // if the file is found, set Content-type and send data
-        res.setHeader('Content-type', map[ext] || 'text/plain');
+        res.setHeader('Content-Type', map[ext] || 'text/plain');
         res.end(data);
       }
     });