def get(_, lang):
if lang == 'ja':
cached_topics = Cache.get('api_topics')
if cached_topics is None:
res = TopicsSerializer(
Topic.get_topic_published_all(), many=True).data
Cache.set('api_topics', res)
else:
res = cached_topics
elif lang == 'en':
cached_topics_en = Cache.get('api_topics_en')
if cached_topics_en is None:
res = TopicsEnSerializer(
TopicEn.get_topic_published_all(), many=True).data
Cache.set('api_topics_en', res)
else:
res = cached_topics_en
else:
return JsonResponse({
'message': 'Not Found'
}, status=404)
return JsonResponse(res, safe=False)