我正在FastAPI中使用Pydantic,以在OpenAPI文档中进行定义。意识到要根据需要定义一个值,我需要将这些值保留为空,如下所示。
class Item(BaseModel):
name: str
description: str
price: float
tax: float
但是,我想提供一个带有示例值的JSON,我可以使用以下语法创建它。
class Item(BaseModel):
name: str = "my name"
description: str = "my description"
price: float = 0.234
tax: float = 0.20
但是这将使它们成为OpenAPI文档中不需要的。有什么方法可以根据需要指定它们,并提供示例值?
您可以这样为Config.schema_extra
声明额外的BaseModel
:
class Item(BaseModel):
name: str
description: str
price: float
tax: float
class Config:
schema_extra = {
"example": {
"name": "my name",
"description": "my description",
"price": 0.234,
"tax": 0.20
}
}
或使用pydantic.Field
明确声明:
from pydantic import BaseModel, Field
class Item(BaseModel):
name: str = Field(..., example="my name")
description: str = Field(..., example="my description")
price: float = Field(..., example=0.234)
tax: float = Field(..., example=0.20)