FastAPI
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| Developer(s) | Sebastián Ramírez |
|---|---|
| Initial release | December 5, 2018[1] |
| Stable release | 0.111.1[2] 
/ 14 July 2024 |
| Repository | github |
| Written in | Python |
| Type | Web framework |
| License | MIT |
| Website | fastapi |
FastAPI is a web framework first released in 2018 for building HTTP-based service APIs in Python.[3] It is used for building APIs with Python 3.8+ based on standard Python-type hints.
FastAPI is based on Pydantic and uses type hints to validate, serialize and deserialize data. It also automatically generates OpenAPI documentation for APIs built with it.[4]
Components
[edit]Pydantic
[edit]Pydantic is a data validation library for Python. While writing code in an IDE, Pydantic provides type hints for schema validation and serialization through type annotations.[5]
Starlette
[edit]Starlette is a lightweight ASGI framework/toolkit, to support async functionality in Python.[6]
Uvicorn
[edit]Uvicorn is a minimal low-level server/application web server for async frameworks, following the ASGI specification. Technically, it implements a multi-process model with one main process, which is responsible for managing a pool of worker processes and distributing incoming HTTP requests to them. The number of worker processes is pre-configured, but can also be adjusted up or down at runtime.[7]
Example
[edit]The following code shows a simple web application that displays "Hello World!" when visited:
from fastapi import FastAPI
app = FastAPI()
@app.get("/")
def read_root():
return "Hello World!"
See also
[edit].svg/28px-Free_and_open-source_software_logo_(2009).svg.png){kind=logo}
- Django
- Flask
- Pylons project
- Web2py
- Tornado
- Comparison of server-side web frameworks
- REST
- Python (programming language)
External links
[edit]References
[edit]- ^ "fastapi repo". GitHub. 2018-12-05.
- ^ "Release 0.111.1". 14 July 2024. Retrieved 23 July 2024.
- ^ "FastAPI". fastapi.tiangolo.com. Retrieved 2024-04-10.
- ^ Lubanovic, Bill (2019-11-06). Introducing Python: Modern Computing in Simple Packages (2nd ed.). O'Reilly Media, Inc. pp. 397, 418. ISBN 9781492051367.
- ^ "Why use Pydantic - Pydantic". docs.pydantic.dev. Retrieved 2023-09-21.
- ^ "Starlette". www.starlette.io. Retrieved 2023-09-21.
- ^ "Restarting `uvicorn` Workers with the `SIGHUP` Signal". bugfactory.io. Retrieved 2024-06-17.
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