A Redis cache can be used to store in-memory data structures. It supports a variety of data types such as strings, hashes, lists, sets, and sorted sets with range queries, bitmaps, hyperloglogs, and geospatial indexes with radius queries.
What is Caching?
Caching is a technique used to store data in a temporary storage location, called a cache so that it can be retrieved quickly and efficiently. Caching is used to improve the performance of systems by reducing the time it takes to access data from slower storage media, such as hard drives or networked storage devices.
There are several types of caching, including server-side caching, client-side caching, and application caching.