PartOne_Step_Seven.md

Step Seven: Research and Understand Login Strategy

• How is the logged in user being kept track of?

  • It is tracked by seeing if user is in session or not. Implement session['...'] in app.py

• What is Flask’s g object?

  • Flask's g object is global

• What is the purpose of add_user_to_g ?

  • add_user_to_g helps tracking of user logged/not logged in and make g.user as variable refer to session value. g.user checks User.query.get(session[CURR_USER_KEY]) to retrieve user from Database.

• What does @app.before_request mean?

  • before_request is to allow execute a function before any request. @app.before_request just define g.user before running any other route.