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One of the most popular API frameworks is called “FastAPI” but in any meaningful benchmark it’s one of the slowest commercially used pieces of web software the industry has adopted.

There is no hope for large segments of the industry. We actively choose to make bad decisions all the time, and then people rationalize them.

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FastAPI is the best combination of an easy and a flexible Python library for web servers, from my experience. If I need performance, I will rewrite it in Go.

the slowest API i ever seen is FastAPI

Fast to develop, fast to run under modest to reasonable requirements. Few things need to scale further.

It may not have to scale, but being able to use the same hardware for more (different things) is nice nevertheless.

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