desec-stack/api/desecapi/exceptions.py

from rest_framework import status
from rest_framework.exceptions import APIException


class RequestEntityTooLarge(APIException):
    status_code = status.HTTP_413_REQUEST_ENTITY_TOO_LARGE
    default_detail = "Payload too large."
    default_code = "too_large"


class PDNSException(APIException):
    def __init__(self, response=None):
        self.response = response
        detail = (
            f"pdns response code: {response.status_code}, body: {response.text}"
            if response is not None
            else None
        )
        return super().__init__(detail)


class ConcurrencyException(APIException):
    status_code = status.HTTP_429_TOO_MANY_REQUESTS
    default_detail = "Too many concurrent requests."
    default_code = "concurrency_conflict"