[clepto]

At least for my team we went with FastAPI because we have other tools for everything else, and FastAPI is incredibly simple for new members to pick up. We tend to say that we made a “FastAPI application” but in reality FastAPI is only powering the REST interface for interacting with the platform.

We use SQLAlchemy for database interaction, a lot of direct usage of Pydantic, Celery with RabbitMQ/Redis for task processing. FastAPI provides a really lightweight interface to gluing pieces like this together.

[Nextgrid]

> We use SQLAlchemy for database interaction, a lot of direct usage of Pydantic, Celery with RabbitMQ/Redis for task processing. FastAPI provides a really lightweight interface to gluing pieces like this together.

Just wondering, why have you not gone with Django directly if you’ve essentially ended up reimplementing your own version of it?

[fernandotakai]

that's how i feel about all these python "micro frameworks".

you start simple, but then you realize you need some kind of db access, some kind of caching, some kind of authentication, maybe some admin interfaces.... aaand you re-implemented django yet again.

[Nextgrid]

Exactly the reason why I don’t care about either FastAPI or Flask. In my experience you’ll always need more than what it comes with out of the box and you’ll end up building your own (crappy) Django.

[clepto]

There wasn’t really an aversion to or direct decision to not use Django, it just kind of naturally evolved. We were experimenting with FastAPI in some mock APIs used for test suites and some different projects and decided to incorporate it into a larger project.

The pulling in of other tools happened naturally over time. Perhaps we reinvented the wheel and Django may have saved some time or effort, but ultimately in the end we gained a very deep knowledge of the system we have and the things that make it work, and how those individual pieces might be usable in other projects/scenarios.

A large driver was honestly just that we had no organizational experience in Django, and so there was no one that even would have looked at it and said “Hey we’re just recreating what Django already does”.