안녕하세요 데브윤 입니다 😄
오늘은 Python 으로 간단하게 Rest API를 개발 할 수 있는 FastAPI 프레임 워크를 소개 하려고 합니다.
🔎개발 환경
- python 3.9.4
- poetry (Dependency Management)
- uvicorn (ASGI Server)
- fastapi
🦈시작하기
Python 패키지 설치
- fastapi 는 python3.6 버전 이상부터 사용가능합니다
- 그리고 의존성 관리를 위해 poetry 도 설치 합니다
$ curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -- poetry init
# 패키지를 생성 fastapi_getting_started
$ poetry init
Package name [fastapi_get_started]: fastapi_getting_started
Version [0.1.0]: 0.1.0
Description []: fastapi beginner - devyoon91 blog
Author [devyoon91 <kimbyungyoun91@gmail.com>, n to skip]: devyoon91
License []:
Compatible Python versions [^3.9]:
...
# add 명령어로 fastapi 패키지 설치
$ poetry add fastapi
# add 명령어로 uvicorn 패키지 설치
$ poetry add uvicorn- pyproject.toml 생성 확인
[tool.poetry]
name = "fastapi_getting_started"
version = "0.1.0"
description = "fastapi beginner - devyoon91 blog"
authors = ["devyoon91"]
[tool.poetry.dependencies]
python = "^3.9"
fastapi = "^0.72.0"
uvicorn = "^0.17.0"
[tool.poetry.dev-dependencies]
[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"- poetry install
$ poetry install
$ poetry show
anyio 3.5.0 High level compatibility layer for multiple asynchronous event loop implementations
asgiref 3.4.1 ASGI specs, helper code, and adapters
click 8.0.3 Composable command line interface toolkit
colorama 0.4.4 Cross-platform colored terminal text.
fastapi 0.72.0 FastAPI framework, high performance, easy to learn, fast to code, ready for production
h11 0.12.0 A pure-Python, bring-your-own-I/O implementation of HTTP/1.1
idna 3.3 Internationalized Domain Names in Applications (IDNA)
pydantic 1.9.0 Data validation and settings management using python 3.6 type hinting
sniffio 1.2.0 Sniff out which async library your code is running under
starlette 0.17.1 The little ASGI library that shines.
typing-extensions 4.0.1 Backported and Experimental Type Hints for Python 3.6+
uvicorn 0.17.0 The lightning-fast ASGI server.main.py 파일 생성
- 아래와 같이 py 파일을 생성하고 FastAPI를 임포트 하면 간단하게 API 작성이 가능합니다.
- $ vi main.py
from fastapi import FastAPI
app = FastAPI()
@app.get("/")
def hello_fastapi():
return {"message": "hello world~!"}
@app.get("/{doc_id}")
def get_document_id(doc_id: int):
return {"doc_id": doc_id}uvicorn main.py 실행
- uvicorn main:app
- FastApi 에서는 Swagger Docs 를 자동으로 생성 해줍니다
-> http://127.0.0.1:8000/docs
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