FastAPI is a cutting-edge Python web framework designed for building APIs quickly and efficiently. It leverages Python type hints to provide automatic request validation, serialization, and interactive API documentation via Swagger UI and ReDoc. Built on Starlette for web routing and Pydantic for data validation, FastAPI offers exceptional performance comparable to NodeJS and Go while maintaining Python's developer-friendly syntax. Key features include async/await support for concurrent operations, dependency injection, OAuth2/JWT authentication helpers, and WebSocket support.
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FastAPI
A modern, high-performance Python web framework for building APIs with automatic OpenAPI documentation.
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// Example Usage
from fastapi import FastAPI\n\napp = FastAPI()\n\n@app.get("/items/{item_id}")\nasync def read_item(item_id: int):\n return {"item_id": item_id}
</> Related Terms
REST API
Architectural style for designing networked applications using HTTP methods to perform CRUD operations on resources.
API (Application Programming Interface)
Set of rules and protocols that allow different software applications to communicate.
ORM (Object-Relational Mapping)
Programming technique that converts data between object-oriented code and relational databases.