Redis Caching Secrets: A Guide to Avoiding Common Mistakes and Pitfalls (Nodejs — Mongodb — Redis)

Table of contents

• What is Redis cache?
• Why is it necessary to use it?
• Example of using Redis Cache with Nodejs, Mongo
• Common mistakes and highlights when using Redis.

What is Redis cache?

Redis cache is a technology that makes computers run faster and more efficiently. Stores data from slower systems, such as a database, in memory for fast access. You can liken it to ordering books in a library and placing them neatly so they can be found easily.

The cache makes frequently used data quickly available, making the computer more responsive. For example, by caching the most visited pages on a website, we can speed up the loading of those pages.

Also, caching reduces the load on the database server, helping it respond to more requests. This allows the computer to serve more users.

However, we must be careful when using cache. The data in the cache must be up to date and security measures must be taken. For example, when the data in the database changes, the data in the cache must also be updated. Redis cache is an essential tool that helps make applications…