Simple mixin for DRF generic viewsets to prevent RawPostDataException error

DRFRequestMaybeInitializedMixin.py

from rest_framework.request import Request


class RequestMaybeInitializedMixin(object):

    def initialize_request(self, request, *args, **kwargs):
        drf_request = super(
            RequestMaybeInitializedMixin, self).initialize_request(
            request, *args, **kwargs)

        if isinstance(request, Request):
            return request

        return drf_request