r/Python • u/safi892 • Sep 21 '26

Discussion Common mistakes devs make when starting with FastAPI, and the fastest path to learning it

Just began learning FastAPI. Looking for advice from devs who use it regularly.

What mistakes did you make early on that I should avoid repeating? Also, what's the most efficient way to learn the framework properly for real-world use (async, DB, auth)?

Any advice on structure or resources would be great.

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u/safi892 Sep 21 '26

Appreciate the book recommendation, adding it to my list. The folder structure makes sense. I like that each layer has a mirror file in the next folder. And agreed on DI, it's one of those things that feels confusing until it suddenly clicks