diff --git a/public/js/common.js b/public/js/common.js
index 6d54b45..9a60122 100644
--- a/public/js/common.js
+++ b/public/js/common.js
@@ -1,21 +1,4 @@
-// import config from './config';
-
-import {
-    domain, // domain name
-    urlpath, // sub url path, like: www.example.com/<urlpath>
-    debug,
-    GOOGLE_API_KEY,
-    GOOGLE_CLIENT_ID,
-    DROPBOX_APP_KEY
-} from './config';
-
-//common
-export const port = window.location.port;
-window.serverurl = `${window.location.protocol}//${domain ? domain : window.location.hostname}${port ? ':' + port : ''}${urlpath ? '/' + urlpath : ''}`;
-export const noteid = urlpath ? window.location.pathname.slice(urlpath.length + 1, window.location.pathname.length).split('/')[1] : window.location.pathname.split('/')[1];
-export const noteurl = `${serverurl}/${noteid}`;
-
-export const version = '0.5.0';
+import { serverurl } from './lib/config';
 
 let checkAuth = false;
 let profile = null;
@@ -101,12 +84,6 @@ export function checkIfAuth(yesCallback, noCallback) {
 }
 
 export default {
-    domain,
-    urlpath,
-    debug,
-    GOOGLE_API_KEY,
-    GOOGLE_CLIENT_ID,
-    DROPBOX_APP_KEY,
     checkAuth,
     profile,
     lastLoginState,
diff --git a/public/js/lib/config/index.js b/public/js/lib/config/index.js
new file mode 100644
index 0000000..bffbadd
--- /dev/null
+++ b/public/js/lib/config/index.js
@@ -0,0 +1,19 @@
+import configJson from '../../../../config.json'; // root path json config
+
+const config = 'production' === process.env.NODE_ENV ? configJson.production : configJson.development;
+
+export const GOOGLE_API_KEY = config.google && config.google.apiKey;
+export const GOOGLE_CLIENT_ID = config.google && config.google.clientID
+export const DROPBOX_APP_KEY = config.dropbox && config.dropbox.appKey
+
+export const domain = config.domain;
+export const urlpath = config.urlpath;
+export const debug = config.debug;
+
+export const port = window.location.port;
+export const serverurl = `${window.location.protocol}//${domain ? domain : window.location.hostname}${port ? ':' + port : ''}${urlpath ? '/' + urlpath : ''}`;
+window.serverurl = serverurl;
+export const noteid = urlpath ? window.location.pathname.slice(urlpath.length + 1, window.location.pathname.length).split('/')[1] : window.location.pathname.split('/')[1];
+export const noteurl = `${serverurl}/${noteid}`;
+
+export const version = '0.5.0';