class SerializerValidationMiddleware:

    def __init__(self, get_response, serializer_class):
        self.get_response = get_response
        self.serializer_class = serializer_class
        # One-time configuration and initialization.

    def __call__(self, request):
        # Code to be executed for each request before
        # the view (and later middleware) are called.
        response = self.get_response(request)
        # Code to be executed for each request/response after
        # the view is called.
        return response

    def process_view(self, request, view_func, view_args, view_kwargs):
        if request.method == 'GET':
            serializer = self.serializer_class(data=request.GET)
        else:
            serializer = self.serializer_class(data=request.data)
        if serializer.is_valid(raise_exception=True):
            request.middleware_serializer_data = serializer.validated_data