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Python Intermediate

What is FastAPI?

A modern, high-performance Python web framework for building APIs with automatic OpenAPI documentation and type validation.

FastAPI leverages Python type hints for automatic request validation, serialization, and API documentation. It is built on Starlette (ASGI) and Pydantic (data validation), achieving performance comparable to Node.js and Go.

Features include automatic Swagger/ReDoc documentation, dependency injection, OAuth2/JWT support, WebSocket support, and async/await native support. FastAPI is one of the fastest-growing Python frameworks.

Related Terms

PIP
The standard package installer for Python, used to install and manage third-party libraries from PyPI.
Exception Handling
A mechanism for managing runtime errors using try, except, else, and finally blocks to prevent program crashes.
Dataclass
A decorator that automatically generates __init__, __repr__, __eq__, and other special methods for classes that mainly store data.
Python ABC Module
The Abstract Base Classes module that enables defining interfaces and abstract methods that subclasses must implement.
Python Iterator Protocol
The interface requiring __iter__() and __next__() methods, enabling objects to be used in for loops and other iteration contexts.
Requests Library
An elegant HTTP library for Python that simplifies making web requests with a human-friendly API.
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