Show HN: I'm trying to bring Async to Django ORM | Hacker News Reader

Show HN: I'm trying to bring Async to Django ORM

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6 pointsprivacyonsec6 comments

Thanks, it's great to see Django adding slowly but surely in all sorts of places.

By the way, have you looked at tortoise orm, which is a fully async python ORM with very Django-like syntax? [1]

[1] https://github.com/tortoise/tortoise-orm

Not OP but I've been experimenting with tortoise and it's pretty awesome! I love that it works with pydantic out of the box so it integrates with FastApi really nicely.

I just started a small side project with fastapi + tortoise + postgresql + vuejs and so far it's a pretty fun and smooth experience!

Indeed, but the goal of the project is to support django ORM, if you already have a backend running under django and you wanna migrate to async, you will have to write a lot of wrappers. with this module it patches django (QuerySet) with async methods.

You still have to update your code for example

  MyModel.objects.get(name="something")

becomes

  MyModel.objects.async_get(name="something")

so even though tortoise orm syntax's is similar to django, everything else can be different, migrations etc ...

for an ongoing discussion see: https://forum.djangoproject.com/t/asynchronous-orm/5925/46

Awesome!

For those of us a little out of the loop, is this implementation being developed with guidance from the core Django devs with a view to adopting into core?

(I tried to find any references in the Django forums but may have missed them)

I believe they intend to have native support for async with the ORM, but it’s a monumental feature to add with lots of edge cases. I believe about 50% of Django is it’s ORM.

I'm not sure if its official. Would love some more guidance/clarity/docs/funding from the django foundation on what it looks like to migrate legacy code to the new ways.

The rednaks repo works great for just giving the new async stuff a go. If everything else is also using async.

I did some experimentation with this. And its a pain trying to migrate a production application that uses gevent and psycogreen2.

The documentation on the code migration path is pretty sparse.

The main hiccup that I ran into was psycogreen2 not being supported.

https://stackoverflow.com/questions/67735453/django-async-or...

https://github.com/rednaks/django-async-orm/discussions/9 https://github.com/rednaks/django-async-orm/discussions/6

Everything works great if everything is already using the regular threading and asyncio/async methods, or JUST gevent/psycogreen.

The django documentation suggests mounting WSGI into ASGI.

But, it breaks down immediately going between the two paradigms.

I put a little experiment together a bit ago to see what would work in production, and my results.

https://github.com/allen-munsch/benchmark-django-fastapi

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