Fix ObjectID serialization issue

See issue #85
winstonjs · Jan 3, 2017 · 7a4faff · 7a4faff
1 parent 0934814
commit 7a4faff
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/helpers.js b/lib/helpers.js
@@ -6,6 +6,7 @@
  */
 'use strict';
 const common = require('winston/lib/winston/common');
+const ObjectID = require('mongodb').ObjectID;
 
 
 /**
@@ -64,7 +65,7 @@ function makeObjectNonCircular(node, opt_parents) {
       continue;
     }
     let value = node[key];
-    if (typeof value === 'object') {
+    if (typeof value === 'object' && !(value instanceof ObjectID)) {
       if (opt_parents.indexOf(value) === -1) {
         copy[key] = makeObjectNonCircular(value, opt_parents);
       } else {