quick start

安裝

pip install fastapi# ASGI服務器，生成環境可以使用uvicorn
pip install uvicorn

代碼

from fastapi import FastAPI
import uvicorn# 創建一個app實例
app = FastAPI()# 編寫一個路徑操作裝飾器
@app.get("/")
# 編寫一個路徑操作函數
async def home():# 定義返回值return {"user_id": 10001}

運行服務器

uvicorn fastapi_quick_start:app --reload

INFO:     Will watch for changes in these directories: ['C:\\code\\vs_code_py\\fastapi']
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [2128] using WatchFiles
INFO:     Started server process [29052]
INFO:     Waiting for application startup.

也可以直接運行

from fastapi import FastAPI
import uvicornapp = FastAPI()@app.get("/")
async def home():return {"user_id": 10001}if __name__ == '__main__':uvicorn.run("fastapi_quick_start:app", port = 8080, reload = True)

跳轉到http://127.0.0.1:8080/docs，就可以看到自動生成的交互式api文檔。