diff --git a/index.js b/index.js
index 3826513..3920065 100644
--- a/index.js
+++ b/index.js
@@ -2,16 +2,17 @@
  * 
  * 
 2020-05-15T20:28:14.357Z
-PUT /changelog 
+curl -X PUT 'http://localhost:9200/changelog'  -d '
 {
   "mappings": {
     "properties": {
       "author":    { "type": "keyword" },  
       "content":  { "type": "text"  }, 
-      "created_at":   { "type": "date","format": "basic_date_time" }     
+      "created_at":   { "type": "date","format": "date_optional_time" }     
     }
   }
-}
+}'  -H "Content-Type: application/json"
+
 
  * 
  */
@@ -24,7 +25,7 @@ const authorizationToken = process.env.AUTH_TOKEN || "hello";
 const port = process.env.APP_PORT || 3000;
 
 function requireAuthentication( req, res, next ){
-  const userAuth = req.get("authorizationToken") || req.query.authorizationToken;
+  const userAuth = req.get("AuthorizationToken") || req.query.authorizationToken;
   console.log( "userAuth : "+userAuth)
   if( userAuth && userAuth === authorizationToken ) next(); 
   else res.end("Auth required");