LinkedIn Carousel: FastAPI Over Django

Post type: Opinion · 7 slides
Blog post: https://www.nuvikatech.com/blog/posts/fastapi-over-django

SLIDE 1 — Cover

Headline: We picked FastAPI over Django for our 84-endpoint backend. 18 months later — here’s the honest verdict.

Sub-line: What we got right, the one thing we completely missed, and how we’d think about it starting today.

SLIDE 2

Label: WHY FASTAPI WON

Headline: Our backend fires hundreds of cloud API calls simultaneously. Async-native isn’t optional.

Body: Django can do async, but it feels bolted on. FastAPI is built on Starlette and Uvicorn — async from the ground up. For I/O-heavy workloads, that difference is real.

SLIDE 3

Label: DEPENDENCY INJECTION

Headline: Auth, tenant isolation, and license checks — composed in one line.

Body: FastAPI’s Depends() system lets you declare exactly which security layers each endpoint has. Any endpoint that omits one simply doesn’t have that protection. Explicit and auditable.

SLIDE 4

Label: THE MISS

Headline: Django Admin. We undervalued it completely.

Body: We spent 4 weeks building a custom internal admin panel. Django Admin would have given us 80% of that in a week. Lesson: internal tooling time is invisible until you’re paying it.

SLIDE 5

Label: THE TRADEOFF

Headline: FastAPI gives you async and a clean contract. Django gives you a backoffice out of the box.

Body: Neither is wrong. The right choice depends on what your product actually needs for the next 18 months — not what sounds more modern.

SLIDE 6

Label: THE DECISION FRAMEWORK

Headline: Choose FastAPI if you’re I/O-bound. Choose Django if you need admin tooling fast.

Body: I/O-bound backend, API-first product, strong auth patterns → FastAPI. Content management, fast backoffice, strong Django team → Django. Both are valid. Know your workload.

SLIDE 7 — CTA

Headline: Want the full story?

Body: The full breakdown: what async-first actually unlocked, the SQLAlchemy tradeoffs, and how we’d make the decision starting today.

Link: nuvikatech.com/blog/posts/fastapi-over-django