Python 之构建REST API

import uvicorn
from fastapi import FastAPI
import requests
import json
from fake_useragent import UserAgent
import warnings
from flask_cors import cross_origin
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from fastapi import FastAPI, Header


from typing import Optional


import uvicorn
warnings.simplefilter('ignore', DeprecationWarning)


#定义request body
class Item(BaseModel):
        name: str
        description: str = None
        price: float
        tax: float = None


class User(BaseModel):
        username: str
        full_name: str = None


app = FastAPI()


# Get 方法之带Path Parm
@app.get('/nihao/{file_path:path}')
async def read_file(file_path: str):
    result = {'code': 200, 'message': file_path}
    return result


# Get 方法之 带Header parm
@app.get("/items/1")
async def read_items(*, abc: str = Header("Hlao l"), hello: str = Header("niha1o"), user_agent: str = Header(None)):
    return {"abc":abc+hello+ user_agent}


# Get 方法之 Query parm
@app.get("/items/")
async def read_items(*,a: str = "wo de"):
    return {"Query Parm": a}


# Post 方法之带 多个header + Request Body
@app.post("/items/121")
async def update_item(*,
         abc: str = Header("Hlao l"), hello: str = Header("niha1o"), user_agent: str = Header(None),
         item: Item, user: User):
         results = {"item": item, "user": user,"Hello":hello}
         return results


#主方法来执行，前面都是定义对应的方法
if __name__ == '__main__':
    uvicorn.run(app=app,
                host="localhost",
                port=80,
                workers=1)
                
# 最后保存成FASTAPI.py 文件
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python FASTAPI.py
后台log:
C:\Users\MAIBENBEN\AppData\Local\Programs\Python\Python39\python.exe E:/Program/python_project/FASTAPI.py
INFO:     Started server process [2724]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://localhost:80 (Press CTRL+C to quit)
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