sergorl / recommender-service Goto Github PK

Consists of:

1. HTTP service of add/update/delete data about users and videos into DB with routes:

   app = Application([
           (r'/api/users',      UserHandler),
           (r'/api/users/\d+',  UserHandler),
           (r'/api/videos',     VideoHandler),
           (r'/api/videos/\d+', VideoHandler),
           (r'/api/event',      EventHandler),
       ])

2. Service of DB is based on PostgreSQL

3. HTTP service of backend request for making video recommendations with routes:

   app = Application([
           (r'/api/videos/recommendations', RecommenderHandler),
       ])

   Request for video recommendation can be one of two forms:

   • /api/videos/recommendations?locale=en&user_id=1 for usual users
   • /api/videos/recommendations?locale=ru" for anonymous users

4. Service of video recommendation is based on algorithm SVD from python library surprise

• start_services.sh starts all (four) services above
• kill_services.sh kills all available (working) services above
• restart_services.shis a serial applying of two scripts above for start and kill

All services (both HTTP services and both service processes) after starting write their PID into:

• pid_db_service.json
• pid_recommend_service.json

Logs are store in files:

• db_service.log
• recommend_service.log