FastAPI（30）- Classes as Dependencies 类依赖注入 （下）

from typing import List, Dict, Any, Optional
from fastapi import Depends
from fastapi.encoders import jsonable_encoder
# 依赖类
class DictListClass:
    def __init__(self,
                 *,
                 name: str,
                 address: Optional[List[str]] = None,
                 info: Optional[Dict[str, Any]] = None,
                 ext: Optional[List[Dict[str, Any]]] = None
                 ):
        self.name = name
        self.address = address
        self.info = info
        self.ext = ext
    # 实例方法
    def test(self):
        self.info.update({"test_func": "调用方法添加的键值对"})
@app.get("/items3")
async def read_items(
        # 用第一种推荐写法来声明依赖项
        commons: DictListClass = Depends()
):
    # 打印下看看 commons 是什么
    print(commons, type(commons))
    # 调用实例方法
    commons.test()
    commons = jsonable_encoder(commons)
    # 打印转换后的 commons 是什么
    print(commons, type(commons))
    return {"commons": commons}