FastAPI Internals - Exploring the Framework's Core Mechanisms

Dive deep into the inner workings of FastAPI, one of Python's most popular web frameworks, in this 29-minute conference talk from EuroPython 2024. Explore the dependency injection system, understanding its benefits and limitations. Uncover the intricacies of the routing system, middleware stack execution, and detailed request and response handling. Learn how the OpenAPI schema is generated, the differences between async and non-async endpoints, and how WebSockets integrate into the framework. Examine the crucial roles of Pydantic and Starlette in supporting FastAPI's functionality. Gain a comprehensive understanding of the underlying mechanisms that power this widely-used package, enhancing your ability to leverage its full potential in your web development projects.

FastAPI Internals — Marcelo Trylesinski