Added: Promise return type for req.session.save() function

README.md

@@ -368,6 +368,18 @@ req.session.save(function(err) {
 })
 ```
 
+#### Session.save().then(callback)
+
+You can use Promise type as return
+
+Example
+```js
+await req.session.save()
+.then(()=>{
+  // session saved
+})
+```
+
 #### Session.touch()
 
 Updates the `.maxAge` property. Typically this is

index.js

@@ -393,6 +393,7 @@ function session(options) {
         debug('saving %s', this.id);
         savedHash = hash(this);
         _save.apply(this, arguments);
+        return this.req.sessionStore.setPromise;
       }
 
       Object.defineProperty(sess, 'reload', {

session/session.js

@@ -69,7 +69,7 @@ defineMethod(Session.prototype, 'resetMaxAge', function resetMaxAge() {
  */
 
 defineMethod(Session.prototype, 'save', function save(fn) {
-  this.req.sessionStore.set(this.id, this, fn || function(){});
+  this.req.sessionStore.setPromise = this.req.sessionStore.set(this.id, this, fn || function(){});
   return this;
 });