⚡ Setting Up Redis or Memcached with Django

? Quick Overview

To boost the performance of your Django app, integrate caching systems like Redis or Memcached. These in-memory stores cache data efficiently, reducing database load and speeding up data retrieval.

? Key Concepts

• Redis supports persistence and advanced data structures.
• Memcached focuses on high-speed temporary caching.

? Syntax / Theory

Django caching is configured via the CACHES setting. Each backend defines how data is stored and retrieved.

? Setting Up Redis with Django

# Install Redis client and Django integration
pip install redis django-redis

# Install Redis server on Ubuntu
sudo apt-get install redis-server

# Configure Redis cache backend in Django
CACHES = {
'default': {
'BACKEND': 'django_redis.cache.RedisCache',
'LOCATION': 'redis://127.0.0.1:6379/1',
'OPTIONS': {
'CLIENT_CLASS': 'django_redis.client.DefaultClient',
}
}
}

? Setting Up Memcached with Django

# Install Memcached Python clients
pip install python-memcached django-pylibmc

# Install Memcached server on Ubuntu
sudo apt-get install memcached

# Configure Memcached cache backend in Django
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': '127.0.0.1:11211',
}
}

? Live Output / Explanation

Once configured, Django automatically stores frequently accessed data in memory, significantly reducing response times.

? Interactive Simulator: Cache vs. Database

? Use Cases

• Session storage
• API response caching
• Template fragment caching