Introducing caching patterns
When we start introducing caching technology, we should look back and find out what cache technology is. The cache is a service that stores data, like in the database, but provides the fastest access and does not persist data longer than requested by time-to-live settings. The data stored in the cache is usually the result of previous calculations or commonly requested data retrieved with a higher speed than from the database. In other words, the cache is a temporary storage of precomputed data. What data can be cached for modern web services? Firstly, the output of pages. Millions of page views on modern websites that retrieve the same page that is rarely updated can cache the output to return the user the previously generated response and save website resources.
The idea of caching temporary output is not new. Caching solutions were generally used for application services such as websites way before Azure built its first data center. One of the first...
