django-huey 1.3.0

An extension for django and huey that supports multi queue management

django-huey

---

This package is an extension of huey contrib djhuey package that allows users to manage multiple queues.

Compatible versions

Package	Version
Django	5.0
Django	4.2
Django	3.2
huey	2.5
huey	2.4

Installation

Using pip package manager run:

pip install django-huey

Then, in your settings.py file add django_huey to the INSTALLED_APPS:

INSTALLED_APPS = [
	...
    'django_huey',
]

Configuration

In settings.py you must add the DJANGO_HUEY setting:

DJANGO_HUEY = {
    'default': 'first', #this name must match with any of the queues defined below.
    'queues': {
        'first': {#this name will be used in decorators below
            'huey_class': 'huey.RedisHuey',  
            'name': 'first_tasks',  
            'consumer': {
                'workers': 2,
                'worker_type': 'thread',
            },
        },
        'emails': {#this name will be used in decorators below
            'huey_class': 'huey.RedisHuey',  
            'name': 'emails_tasks',  
            'consumer': {
                'workers': 5,
                'worker_type': 'thread',
            },
        }
    }
}

Including queues from files

new in 1.1.0

You can also include a queue configuration from another file, located in one of your apps. Use django_huey.utils.include to do so:

In settings.py you may have:

DJANGO_HUEY = {
    'default': 'first', #this name must match with any of the queues defined below.
    'queues': {
        # Your current queues definitions
    }
}

# This is new
from django_huey.utils import include
DJANGO_HUEY["queues"].update(include("example_app.queues"))

And in your example_app.queues:

queues = {
    "test": {
        "huey_class": "huey.MemoryHuey",
        "results": True,
        "store_none": False,
        "immediate": False,
        "utc": True,
        "blocking": True,
        "consumer": {
            "workers": 1,
            "worker_type": "thread",
            "initial_delay": 0.1,
            "backoff": 1.15,
            "max_delay": 10.0,
            "scheduler_interval": 60,
            "periodic": True,
            "check_worker_health": True,
            "health_check_interval": 300,
        },
    },
}

Note: in your queues file, you should declare a variable called queues, so they can be included. If the variable doesn't exist, an AttributeError will be raised.

Usage

Now you will be able to run multiple queues using:

python manage.py djangohuey --queue first
python manage.py djangohuey --queue emails

Each queue must be run in a different terminal.

If you defined a default queue, you can just run:

python manage.py djangohuey

And the default queue will be used.

Configuring tasks

You can use usual huey decorators to register tasks, but they must be imported from django_huey as shown below:

from django_huey import db_task, task

@task() #Use the default queue 'first'
def some_func_that_uses_default_queue():
    # perform some db task
    pass

@db_task(queue='first')
def some_func():
    # perform some db task
    pass

@task(queue='emails')
def send_mails():
	# send some emails
    pass

All the args and kwargs defined in huey decorators should work in the same way, if not, let us know.

Importing a huey instance

Sometimes you'll need to import a huey instance in order to do some advanced configuration, for example, when using huey pipelines.

You can do that by using the get_queue function from django_huey:

from django_huey import get_queue

first_q = get_queue('first')

@first_q.task()
def some_func():
    pass

Integration with huey monitor

You can use django-huey with huey monitor.