fixed handling of customfields for graylog appender

Richard Boss · Richard Boss · commit 5c881b95b93a · 2015-01-16T13:58:04.000+01:00
diff --git a/lib/appenders/gelf.js b/lib/appenders/gelf.js
@@ -85,7 +85,7 @@ function gelfAppender (layout, host, port, hostname, facility) {
     var firstData = data[0];
     
     if (!firstData.GELF) return; // identify with GELF field defined
-    Object.keys(firstData).forEach(function(key) {
+    Object.keys(firstData.GELF).forEach(function(key) {
       // skip _id field for graylog2, skip keys not starts with UNDERSCORE
       if (key.match(/^_/) || key !== "_id") { 
         msg[key] = firstData[key];
