from rest_framework.throttling import SimpleRateThrottle


class UserRateThrottle(SimpleRateThrottle):
    """Throttle authenticated requests by user ID."""

    scope = "user"

    def get_cache_key(self, request, view):
        if request.user and request.user.is_authenticated:
            return self.cache_format % {"scope": self.scope, "ident": request.user.pk}
        return None  # AnonRateThrottle handles anonymous requests