Django

Summary

• The number of workers for Gunicorn, Uvicorn and Hypercorn should be CPU * 2 + 1
• The number of threads for WSGI apps should be WORKERS * 2 as a minimum unless you don’t have a lot of memory. If you have more memory you can increase this number
• The number of threads for ASGI apps is irrelevant because it uses coroutines to dispatch requests
• ASGI can be faster and scale better than WSGI but only if you’ve written your application as async from the framework to the backend
• Test your setup using Locust or a similar tool to verify these assumptions
• Don’t forget about modelling static content in your load tests

I gave this talk at PyCascades 2021 and decided to turn it into a series of blog posts so it's available to folks who didn't attend the conference or don't like to watch videos. Here are the slides and the video if you want to see them.

Part 2: Customizing built-in methods https://www.laceyhenschel.com/blog/2021/2/23/what-you-should-know-about-drf-part-2-customizing-built-in-methods
Part 3: Adding custom endpoints https://www.laceyhenschel.com/blog/2021/2/23/what-you-should-know-about-django-rest-framework-part-3-adding-custom-endpoints

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Async Python can be useful in the right situation, but one of the tricky things about it is that it requires a bit more effort to run than normal synchronous Python, because you need an async event loop that can run and manage all your async functions.

If you're out of the loop, CCBV is a tool to help you get your head around Django's class based views.

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lsof -i :8000 -t | xargs -t kill

Commands and options explained in the link

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changelog: https://django-ninja.dev/whatsnew_v1/

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and Three more uses for functools.partial() in Django

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