手机是否存在接口

import re
class MobileViewSet(ViewSet):
    @action(methods=['post'], detail=False)
    def check(self, request, *args, **kwargs):
        mobile = request.data.get('mobile', None)
        if not mobile:
            return APIResponse(1, 'mobile field required')
        if not re.match(r'^1[3-9][0-9]{9}$', mobile):
            return APIResponse(1, 'mobile field error')
        try:
            models.User.objects.get(mobile=mobile)
            return APIResponse(msg=True)  # 手机号存在
        except:
            return APIResponse(msg=False)  # 手机号不存在