FastAPI: 请求体Query-Path-Body-Field（7）

多参数混用Path和Query

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

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

app = FastAPI()

@app.post('/authors/{id}')
def root(*,         id: int = Path(..., gt=12),         author: Author,         book: Book,         query: Optional[str] = Query(None)):
         id: int = Path(..., gt=12),
         author: Author,
         book: Book,
         query: Optional[str] = Query(None))
    return id, author, book, query

Body实现请求体中单一值

在设定好的模型之外，想在发送请求时另外加一个字段进去，如果单独定义就会把它当成一个查询参数，可以利用Body来实现。

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

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

app = FastAPI()

@app.post('/authors/{id}')
def root(*,         id: int = Path(..., gt=12),         author: Author,         book: Book,         publisher: str = Body(...),         query: Optional[str] = Query(None)):
         id: int = Path(..., gt=12),
         author: Author,
         book: Book,
         publisher: str = Body(...),
         query: Optional[str] = Query(None))
    return id, author, book, publisher, query

嵌入请求体参数

如果想把请求体外边再加一个字段来标识，也可以通过Body来实现

class Book(BaseModel):
    name: str
    price: float
    description: Optional[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

Field校验模型里字段

class Book(BaseModel):
    name: str = Field(..., min_length=2, max_length=10)
    price: float
    description: Optional[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