How can I implement caching in Node.js using Redis?

How can I implement caching in Node.js using Redis?

You can use the redis package in Node.js to connect to a Redis server and cache your data. First, install the package using npm.

What are the benefits of using Redis for caching?

Redis is fast, supports various data structures, and can handle large volumes of data efficiently, making it ideal for caching.

Can you show me a simple code example?

Sure! Here's a basic example:

const redis = require('redis');
const client = redis.createClient();

client.set('key', 'value', redis.print);
client.get('key', (err, reply) => {
  console.log(reply); // Will print 'value'
});

How do I handle cache expiration in Redis?

You can set an expiration time when you store a key using the EX option. For example:

client.setex('key', 3600, 'value'); // Expires in 1 hour