Mastering Python Design Patterns - Second Edition

Real-world examples

Memcached is commonly used as a cache server. It is a popular in-memory key-value store for small chunks of data from results of database calls, API calls, or HTML page content. Redis is another server solution for the same purpose.

Amazon's ElastiCache, according to the documentation site (https://docs.aws.amazon.com/AmazonElastiCache), is a web service that makes it easy to set up, manage, and scale a distributed in-memory data store or cache environment in the cloud.