django_redis_cache

packages

django
django-redis
redis
django rest framework

Get started

Install all the requirements - pip install -r requirements.txt

In settings.py add the following lines.

Installed_apps = [
    'rest_framework'
]

Add these cache lines in settings.py

CACHES = {
"default": {
    "BACKEND": "django_redis.cache.RedisCache",
     "LOCATION": "redis://127.0.0.1:6379/1",
     "OPTIONS": {
         "CLIENT_CLASS": "django_redis.client.DefaultClient"
      },
     "KEY_PREFIX": "django_cache"
    }
}

#  Cache time to live is 15 minutes
CACHE_TTL = 60 * 15

models.py

class Newsfeed(models.Model):
    news = models.CharField(max_length=255)

admin.py

from .models import Newsfeed

@admin.register(Newsfeed)
class NewsfeedAdmin(admin.ModelAdmin):
list_display = ('id', 'news')

views.py

from django.conf import settings
from django.shortcuts import render
from rest_framework.decorators import api_view
from rest_framework import status
from rest_framework.response import Response
from django.views.decorators.cache import cache_page
from .models import Newsfeed

@cache_page(settings.CACHE_TTL)
@api_view(['GET'])
def list_newsfeed(request):
    all_newsfeeds = Newsfeed.objects.all()
     data = []
     for item in all_newsfeeds:
          temp = {
             'news_id': item.id,
             'news': item.news
          }
          data.append(temp)
     context = {'data': data}
    return Response(context, status=status.HTTP_200_OK)

urls.py

from datarepo.views import list_newsfeed

 urlpatterns = [
     path('list_newsfeed/', list_newsfeed)
 ]

To check redis connected
```
$ redis-cli ping
PONG
```

To test redis is working fine..!!

 $ redis-cli
 127.0.0.1:6379> set test "hello world"
 127.0.0.1:6379> OK
 127.0.0.1:6379> get test
 127.0.0.1:6379> "hello world"

To know the cache keys

$ python3 manage.py shell
>>> from django.core.cache import cache
>>> cache.keys('*')  # this line gives the list of keys presenet in cache

To clear the cache

>>> from django.core.cache import cache
>>> cache.clear()
   True

JayanthiGaddameedi/django_redis_cache

django_redis_cache

packages

Get started