fastapi+pydantic+sqlalchemy 如何返回列表数据? - V2EX
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fastapi+pydantic+sqlalchemy 如何返回列表数据?

  •  
  •   SystemLight
    SystemLight Dec 16, 2021 3135 views
    This topic created in 1614 days ago, the information mentioned may be changed or developed.
    • pydantic 可以格式化 ORM 模型,但是如何能返回列表类型
    • [Model,Model,Model] 这种格式如何通过 pydantic 验证
    3 replies    2021-12-18 15:47:14 +08:00
    NCZkevin
        1
    NCZkevin  
       Dec 16, 2021
    from typing import List
    List[Model]
    4BVL25L90W260T9U
        2
    4BVL25L90W260T9U  
       Dec 17, 2021   1
    首先,restful 接口返回 list 不是一个最佳实践。如果你直接返回了一个 list ,翻页信息放到哪儿呢?所以最好还是返回一个特定的对象,而不是“裸” list 。比如:

    ```py
    class Item(BaseModel):
    pass

    class Res(BaseModel):
    page: int
    page_size: int
    items: list[Item]
    ```
    luckyc
        3
    luckyc  
       Dec 18, 2021
    @ospider 我更倾向于
    {
    "code": 0,
    "msg":"ok",
    "data":{
    "page":1,
    "page_size":100,
    "items":[...]
    }
    }
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