What is caching in Node.js and how can Redis help?

What is caching in Node.js and how can Redis help?

Caching in Node.js is a technique to store frequently accessed data in memory to improve performance. Redis is an in-memory data structure store that can be used as a cache to speed up data retrieval.

Can you explain how to set up Redis with a Node.js application?

Sure! First, you need to install the Redis server and the redis package in your Node.js app. Then, you can connect to Redis using the createClient method.

What are some best practices for using Redis as a cache?

Some best practices include setting appropriate expiration times for cached data, using key namespaces to avoid collisions, and monitoring cache performance.

How does caching improve the performance of a web application?

Caching reduces the time it takes to retrieve data by storing it in memory, which is much faster than fetching it from a database or an external API.