tiangolo/fastapi
Fastapi
FastAPI is a high-performance Python web framework designed for building REST APIs. It operates as an ASGI web framework, providing a system to create structured HTTP endpoints that automatically serialize data and validate request parameters.
The framework utilizes Python type hints to drive data validation and serialization, automatically generating machine-readable OpenAPI and JSON Schema specifications. This process enables the automatic creation of interactive, browser-based API documentation where endpoints can be tested directly.
The project includes a dependency injection system for managing shared logic and supports asynchronous request handling and WebSocket communication for real-time data exchange. It also provides tools for API endpoint security through authentication and authorization standards.
Local development is supported via a server with hot reloading, and the framework includes utilities for automated cloud deployment.
Features
- Python Web Frameworks - Provides a high-performance web framework for building scalable APIs using Python type hints for validation and serialization.
- REST API Frameworks - Provides a high-performance framework for building structured REST APIs with automatic serialization and validation.
- Request Validation - Validates incoming HTTP request bodies, parameters, and headers against defined types with automatic error handling.
- JSON Response Serializers - Automatically converts server-side Python objects and database models into JSON responses for clients.
- Automatic Specification Generators - Automatically generates OpenAPI and JSON Schema specifications directly from Python type hints.
- Data Validation Schemas - Leverages Pydantic and Python type hints to enforce request and response data schemas.
- Type-Hint-Based Schema Definitions - Uses Python type annotations to automatically drive the serialization of objects into JSON responses.
- API Documentation - Generates interactive web interfaces for exploring and testing API endpoints directly from the browser.
- API Schema Generation - Automatically derives machine-readable OpenAPI specifications from the code to power interactive documentation.
- Asynchronous Request Handlers - Uses non-blocking execution patterns with async and await to handle concurrent web requests efficiently.
- Asynchronous Runtimes - Utilizes a high-performance ASGI runtime based on Starlette for asynchronous request handling.
- Asynchronous Web Frameworks - Functions as a high-performance asynchronous web framework built on the ASGI standard.
- High-Performance Web Services - Designed for high-throughput, low-latency web services using an asynchronous architectural foundation.
- RESTful API Frameworks - Implements a system for creating structured HTTP endpoints with automatic data serialization and request parameter validation.
- Production Deployment Tools - Provides a robust foundation for deploying production-grade servers capable of handling heavy workloads.
- Real-Time Web Communication - Implements persistent bidirectional connections via WebSockets for live, real-time data exchange.
- Authentication Standards - Includes built-in utilities for securing endpoints using authentication and authorization standards such as tokens and basic credentials.
- Web Service Security - Integrates authentication and authorization standards to protect API endpoints and restrict access to sensitive data.
- Dependency Injection - Implements a dependency injection system to resolve shared logic and resources for request handlers.
- WebSocket Communication - Supports full-duplex WebSocket communication channels for real-time, bidirectional data exchange.
- API Frameworks - High-performance framework using modern Python type hints.
- Server Frameworks - High-performance Python framework using standard type hints.
- Web Frameworks - Provides support for the high-performance Python web framework.
