DEV Community πŸ‘©β€πŸ’»πŸ‘¨β€πŸ’»

Shen
Shen

Posted on • Updated on • Originally published at shenli.dev

django-simple-task: An asynchronous Django 3 task runner

django-simple-task runs background tasks in Django 3 without requiring other services and worker processes. It runs them in the same event loop as your ASGI application. It is not resilient as a proper task runner such as Celery, but works for some simple tasks and has less overall overheads.

You can run background tasks like this in a django view and it would just work.

from django_simple_task import defer

def task1():
    time.sleep(1)
    print("task1 done")

async def task2():
    await asyncio.sleep(1)
    print("task2 done")

def view(requests):
    defer(task1)
    defer(task2)
    return HttpResponse(b"My View")

Here’s an overview of how it works:

  1. On application start, a queue is created and a number of workers start to listen to the queue
  2. When defer is called, a task(function or coroutine function) is added to the queue
  3. When a worker gets a task, it runs it or delegates it to a threadpool
  4. On application shutdown, it waits for tasks to finish before exiting ASGI server

View on PyPI

View on GitHub

Read the docs

Top comments (0)

All DEV content is created by the community!

Hey, if you're landing here for the first time, you should know that this website is a global community of folks who blog about their experiences to help folks like you out.

Sign up now if you're curious. It's free!