diff --git a/lib/request.js b/lib/request.js
index 5886f03..f5b8087 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -23,6 +23,11 @@ Object.keys(methods).forEach(function(method){
 
       var that = this;
 
+      if("function" == typeof params) {
+        fn = params;
+        params = {};
+      }
+
       if(!this.token || Date.now() > +new Date(this.token.expires_at)) {
 
         this.requestToken(function(){
@@ -46,6 +51,11 @@ Object.keys(methods).forEach(function(method){
 
       var that = this;
 
+      if("function" == typeof params) {
+        fn = params;
+        params = {};
+      }
+
       if(!this.token || Date.now() > +new Date(this.token.expires_at)) {
 
         this.requestToken(function(){