Lecture 11: More Heroku & WSGI Features

Question 1

What are clock dynos designed to do?

Answer 1

Schedule tasks at intervals, or at period times

Question 2

What files do we need to modify to set up a clock dyno?

Answer 2

• Procfile
  clock: python scheduledjob.py
• requirements.txt
  apscheduler
  tzlocal<3.0

Question 3

What does apscheduler do?

Answer 3

Allows us to call a function on a specified time interval using a blocking scheduling system

Question 4

What are the steps in creating a basic clock application?

Answer 4

1. Import the apscheduler and create an
   instance of a BlockingScheduler()
2. Set the time interval to run the scheduled
   job, and define the job function
3. Start the scheduler when script beings

Question 5

What command do you run to start your clock dyno?

Answer 5

heroku ps:scale clock=1

Question 6

What command do you kill your clock dyno?

Answer 6

heroku ps:scale clock=0