How do I implement distributed caching in my application?

How do I implement distributed caching in my application?

To implement distributed caching, you can use tools like Redis or Memcached. Do you have a specific technology stack in mind?

I'm using Node.js and MongoDB. How would that work?

You can use Redis as a caching layer. First, install the Redis client for Node.js, then connect to your Redis server and cache your MongoDB queries.

Can you provide a code example for caching a MongoDB query?

Sure! Here's a simple example:

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

async function getCachedData(query) {
    const cacheKey = JSON.stringify(query);
    const cachedData = await client.get(cacheKey);
    if (cachedData) return JSON.parse(cachedData);

    const data = await YourModel.find(query);
    client.setex(cacheKey, 3600, JSON.stringify(data)); // Cache for 1 hour
    return data;
}

This function checks the cache before querying MongoDB.

What are the benefits of using distributed caching?

Distributed caching improves application performance by reducing database load, speeding up data retrieval, and enhancing scalability.