" If anyone is looking to build a production Python API, I would highly recommend FastAPI. It is beautifully designed, simple to use and highly scalable, it has become a key component in our API …

FastAPI framework, high performance, easy to learn, fast to code, ready for production

FastAPI framework, high performance, easy to learn, fast to code, ready for production

It streamlines the process of building, deploying, and accessing an API with minimal effort. It brings the same developer experience of building apps with FastAPI to deploying them to the cloud. 🎉

Just standard modern Python. If you need a 2 minute refresher of how to use Python types (even if you don't use FastAPI), check the short tutorial: Python Types.

In Python 3.6 and above (including Python 3.10) you can use the Union type from typing and put inside the square brackets the possible types to accept. In Python 3.10 there's also a new syntax where …

If you have a path operation that receives a path parameter, but you want the possible valid path parameter values to be predefined, you can use a standard Python Enum.

It's very common in Python packages to try the best to avoid breaking changes in new versions, but it's better to be safe, and install newer versions intentionally and when you can run the tests to check …

FastAPI framework, high performance, easy to learn, fast to code, ready for production

FastAPI framework, high performance, easy to learn, fast to code, ready for production