mangum

The close to 'native' Python performance looks promising! Just want to point out that this section avoids mentioning the best way to do it: > AWS Lambda doesn't natively run unmodified Python apps: > > - You need adapters (such as https://github.com/slank/awsgi or https://github.com/Kludex/mangum) for running your WSGI sites. > - WebSockets are unsupported. > - Setup is complex, adapters are often unmaintained. AWS provides https://github.com/awslabs/aws-lambda-web-adapter which is a) supported and b) written Rust, providing a translation of Lambda requests back into HTTP so you can use your usual entry point to the WSGI app. It is simple to set up. WebSockets still not supported of course, but the issue of adapters is solved.

We do this at current job for most of our internal tools. Not a setup I would choose on my own, but serviceable. Using a simple handler function that uses mangum [0] to translate the event into a request compatible with FastAPI, it mostly Just Works TM the same in AWS as it does locally. The trade off comes with a bit harder troubleshooting and there are some cases where it can be difficult to reproduce a bug locally because of the different server architectures. 0: https://github.com/Kludex/mangum

+1, take a look at Mangum: https://github.com/jordaneremieff/mangum/

Yes, it's possible to wrap any asgi app to run in a lambda. Check out Mangum https://github.com/jordaneremieff/mangum

I've recently found about Protocol / structural subtyping in Python and found this sort of pattern really useful as duck typing is so common in py code. Highly recommend reading: https://www.python.org/dev/peps/pep-0544/ https://docs.python.org/3/library/typing.html#nominal-vs-str... https://docs.python.org/3/library/typing.html#typing.Protoco... Cool example: https://github.com/jordaneremieff/mangum/blob/main/mangum/ty...

You might want to check this out. Mangum: AWS Lambda & API Gateway support for ASGI - https://github.com/jordaneremieff/mangum

It does when paired with mangum https://github.com/jordaneremieff/mangum