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Caching
A certain woman had a very sharp conciousness but almost no memory ... She remembered enough to work, and she worked hard.
- Lydia Davis
Caching in REST Framework works well with the cache utilities provided in Django.
Using cache with apiview and viewsets
Django provides a method_decorator
to use
decorators with class based views. This can be used with
with other cache decorators such as cache_page
and
vary_on_cookie
.
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework import viewsets
class UserViewSet(viewsets.Viewset):
# Cache requested url for each user for 2 hours
@method_decorator(cache_page(60*60*2))
@method_decorator(vary_on_cookie)
def list(self, request, format=None):
content = {
'user_feed': request.user.get_user_feed()
}
return Response(content)
class PostView(APIView):
# Cache page for the requested url
@method_decorator(cache_page(60*60*2))
def get(self, request, format=None):
content = {
'title': 'Post title',
'body': 'Post content'
}
return Response(content)
NOTE: The cache_page
decorator only caches the
GET
and HEAD
responses with status 200.