drobtravels / caching_example

Caching Examples for Ruby on Rails

Caching with Ruby on Rails

This repository contains code examples for various ways of using caching with Ruby on Rails.

The code is from talk I gave titled "Real World Caching". You can see the see the slides here.

Availible Demos:

• simple example of interacting with the Rails cache
• Fragment Caching
  • Simple / Naive demo at http://localhost:3000/posts/simple_cached_index
  • Time based expiration at http://localhost:3000/posts/time_based_cached_index
  • Expiration based on Model changes at http://localhost:3000/posts/update_time_based_cache_index
• Russian Doll Caching
  • Multiple instances at http://localhost:3000/topics
  • Single model instance at http://localhost:3000/topics
• API example based on Model changes at http://localhost:3000/api/products.json
• API example based on changes for multiple Models at http://localhost:3000/api/products_and_posts_by_date.json
• Conditional GET example with clientside polling at http://localhost:3000/

Running locally

bundle install
rake db:create && rake db:seed
foreman start

Redis Dependency

This requires Redis in development for caching.

On Mac OS, install with brew install redis

Run with foreman start to start both redis-server and rails server.