Custom Exceptions

Django-Ninja provides an intuitive way to handle custom exceptions by registering a function (handler) for an exception type, similar to what is done in Flask applications.

In this regard, Django-Ninja-Extra has an APIException exception type that provides similar functionality for those accustomed to using DRF's APIException.

For example:

from ninja_extra.exceptions import APIException
from ninja_extra import api_controller, route, NinjaExtraAPI, status
from ninja import constants


class CustomAPIException(APIException):
    status_code = status.HTTP_401_UNAUTHORIZED
    default_detail = 'UnAuthorized'


@api_controller('', tags=['My Operations'], auth=constants.NOT_SET, permissions=[])
class MyController:
    @route.get('/exception')
    def custom_exception(self):
        raise CustomAPIException()


api = NinjaExtraAPI(title='Exception Test')
api.register_controllers(MyController)

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