FastAPI: 请求体嵌套模型（8）

可以将一个模型属性定义为有多子元素的类型。List来实现

class Book(BaseModel):
    name: str = Field(..., min_length=2, max_length=10)
    price: float
    description: Optional[str] = None
    tag: List[str] = None

app = FastAPI()

@app.post('/books/')
def root(book: Book = Body(..., embed=True),         query: Optional[str] = None):
         query: Optional[str] = None)
    return book, query

还可以在模型里嵌套模型，可以做到任意深度嵌套，来实现更复杂的结构。

class Author(BaseModel):
    name: str
    address: Optional[str] = None


class Book(BaseModel):
    name: str
    price: float
    description: Optional[str] = None
    author: Author

app = FastAPI()

@app.post('/authors/{id}')
def root(*,         id: int = Path(..., gt=12),         book: Book):
         id: int = Path(..., gt=12),
         book: Book)
    return id, book