return user keywords

recommendation_engine.py

@@ -178,7 +178,13 @@ class Engine:
             rec_list += [(i,{}) for i in stay_same_index]
 
             rec_list = sorted(rec_list, key=lambda k:k[0])
-            return [e[1] for e in rec_list]
+            videos_ = [e[1] for e in rec_list]
+            return {
+                'user': {
+                    'keywords': user.get('keywords', {})
+                },
+                'videos': videos_
+            }
 
 
 # NOTE for future improvement: vids_exclude element unit could be clip or in/out time pairs, rather than playlist. 
@@ -239,12 +245,18 @@ class Engine:
         )[:16 - channels['userKeywords'] - channels['globalKeywords']]
         # Shuffle playlists (randomize layout) and shift clips (randomize start)
         random.shuffle(videos)
-        return [{
+        videos_ = [{
             'clips': video['clips'],
             'position': random.randrange(len(video['clips'])),
             'name': video['name'],
             'tags': video['tags'],
         } for video in videos]
+        return {
+            'user': {
+                'keywords': user.get('keywords', {})
+            },
+            'videos': videos_
+        }
 
 
     def get_next(self, user, position):