Redis® (**Re**mote **Di**ctionary **S**erver) is a fast open-source in-memory key-value database that supports rich data-types including strings, hashes, lists, and sets, making it an ideal choice for creating a performance-oriented system. Because Redis® stores data in Random Access Memory (RAM), it minimizes the seek-time in accessing data from disks. This feature makes Redis® a versatile data structure for making highly-available and scalable applications. This guide uses Redis® server to imp......