获取 pydantic model 类型的 Json 模式

Question

I am using pydantic in my project and am using its jsonSchema functions.

I have defined some models using class MyModel(BaseModel) and can get the schema of the model using MyModel.schema() .

How can I obtain the json schema when the model is used together with typing.Type ? For example the following:

• typing.List[MyModel]
• typing.Optional[MyModel]
• typing.Union[MyModel1, MyModel2]

Example of what I would like to obtain:

MyModelList = typing.List[MyModel]
MyModelListSchema = get_schema(MyModelList)

Answer 1

This is now doable using pydantic and __root__ attribute.

class MyModelList(BaseModel):
    __root__: typing.List[MyModel]

MyModelListSchema = MyModelList.schema()