在django视图中发送带有序列化数据的字符串

Question

views.py

def get(self , request , format=None):
                current_timestamp = time.time()
                products = GrProduct.objects.raw(('SELECT * FROM products WHERE id > 9 ')

                tz = pytz.timezone('Asia/Kolkata')
                product_sync_ts = datetime.now(tz)
                product_sync_ts_iso = product_sync_ts.isoformat()
                content = json.dumps(product_sync_ts_iso)

                print content

                if products:
                    serializer = ProductSerializer(
                        content,
                        products,many=True
                    )
                    raise APIException200(request, serializer.data)
                else:
                    content = {'details': "No such product exists"}
                    raise APIException400(request, content)

我正在尝试以特定格式发送当前时间戳以及序列化数据。但它不会这样。任何人都可以帮我解决这个问题吗？我正在为drf和django工作。