Periodic tasks with Celery Beat in Django - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Celery app instance in your Django project.

Django

from [1] import app as celery_app

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Adjango_celery_beat

Bcelery

Cmyproject.celery

Dtasks

Attempts:

3 left

💡 Hint

Common Mistakes

Importing directly from 'celery' instead of your project celery file.

Using 'django_celery_beat' which is for scheduling, not the app instance.

You import the Celery app instance from your project's celery.py file, usually at myproject.celery.

2fill in blank

medium

Complete the code to define a periodic task using Celery Beat's @periodic_task decorator.

Django

@periodic_task(run_every=crontab(minute='*/[1]'))
def my_task():
    print('Task runs every 5 minutes')

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A5

B0

C10

D15

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 which means only at the start of the hour.

Confusing the minute value with seconds.

The crontab(minute='*/5') means the task runs every 5 minutes.

3fill in blank

hard

Fix the error in the Celery Beat schedule dictionary to run a task every hour.

Django

CELERY_BEAT_SCHEDULE = {
    'hourly-task': {
        'task': 'app.tasks.my_task',
        'schedule': [1](hour='*', minute=0),
    },
}

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Acrontab

Btimedelta

Cschedule

Dinterval

Attempts:

3 left

💡 Hint

Common Mistakes

Using timedelta which is not imported or used here.

Using interval which requires seconds, not crontab syntax.

The crontab function is used to schedule periodic tasks with specific time patterns like every hour.

4fill in blank

hard

Fill both blanks to create a periodic task that runs every day at midnight.

Django

CELERY_BEAT_SCHEDULE = {
    'daily-task': {
        'task': '[1]',
        'schedule': crontab(hour=[2], minute=0),
    },
}

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Aapp.tasks.daily_cleanup

Bapp.tasks.hourly_cleanup

C0

D12

Attempts:

3 left

💡 Hint

Common Mistakes

Using hour 12 which is noon, not midnight.

Using the wrong task name.

The task name is app.tasks.daily_cleanup and crontab(hour=0, minute=0) runs it at midnight daily.

5fill in blank

hard

Fill all three blanks to define a periodic task that runs every Monday at 7:30 AM.

Django

CELERY_BEAT_SCHEDULE = {
    'weekly-task': {
        'task': '[1]',
        'schedule': crontab(hour=[2], minute=[3], day_of_week='1'),
    },
}

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Aapp.tasks.weekly_report

B7

C30

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using hour 0 which is midnight.

Confusing day_of_week numbers.

The task app.tasks.weekly_report runs at 7:30 AM (hour=7, minute=30) every Monday (day_of_week='1').