What are the best practices for caching in Rails using Redis?

What are the best practices for caching in Rails using Redis?

When using Redis for caching in Rails, consider these best practices: 1. Use fragment caching for views, 2. Cache expensive database queries, 3. Set appropriate expiration times, 4. Use Redis' built-in data structures for complex caching needs.

How do I implement fragment caching in my Rails app?

To implement fragment caching, wrap the part of your view you want to cache with the cache method. For example: <%= cache('unique_cache_key') do %> ... %>.

What should I set as the expiration time for cached data?

The expiration time depends on how often your data changes. A common practice is to set it to a few minutes for frequently changing data and longer for more static data.

Can I use Redis for session storage as well?

Yes, Redis is great for session storage. You can configure it in your Rails app by setting config.session_store :redis_store in your config/initializers/session_store.rb.