brief
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
The key features are:
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Fast: Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available.
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Fast to code: Increase the speed to develop features by about 200% to 300%. *
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Fewer bugs: Reduce about 40% of human (developer) induced errors. *
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Intuitive: Great editor support. Completion everywhere. Less time debugging.
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Easy: Designed to be easy to use and learn. Less time reading docs.
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Short: Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs.
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Robust: Get production-ready code. With automatic interactive documentation.
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Standards-based: Based on (and fully compatible with) the open standards for APIs: OpenAPI (previously known as Swagger) and JSON Schema.
setup
- install fastapi
pip install fastapi
- install ASGI server
pip install uvicorn
demo
//main.py
import datetime
import fastapi
app = fastapi.FastAPI()
@app.get("/now")
async def get_time():
time = datetime.datetime.now()
return time.strftime("%Y-%m-%d %H:%M:%S")
run
uvicorn fastapi_demo:app --reload
as flow may be successful:
test
http://127.0.0.1:8000/now
the result maybe:
