pydantic string 'false' to bool

Question

我有类似的pydantic模型

class AccountingQueueFilters(BaseModel):
no_batch_id: Optional[bool] = None

但是对于来自get params的输入'false'，它返回True

https://mysite.tech/accounting_queue/get?no_batch_id=false

如何修复？

Answer 1

您应该使用这个构造它将允许您通过点符号访问属性，并进行自定义类型检查

class QueryParams:
def make_bool(self, value):
return not(value == "false")  # some logic
def __init__(self, boolable: str, zero: bool):
self.boolable = self.make_bool(boolable)
self.zero = zero

@router.get('/route')
async def route(
data: QueryParams = Depends(),
):
print(data) # boolable=false : str
print(type(data.boolable))  # bool
print("success")
return Result(data)