How can I implement server caching in my web application?

How can I implement server caching in my web application?

To implement server caching, you can use techniques like in-memory caching, file caching, or database caching. What framework are you using?

I'm using Node.js with Express.

Great! You can use libraries like node-cache for in-memory caching or Redis for a more robust solution. Would you like code examples?

Yes, please provide an example using Redis.

Sure! First, install Redis and the redis package. Then, you can set up caching like this:

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

app.get('/data', (req, res) => {
    client.get('myData', (err, data) => {
        if (data) {
            return res.send(JSON.parse(data));
        } else {
            // Fetch data from the database
            const fetchedData = fetchDataFromDB();
            client.setex('myData', 3600, JSON.stringify(fetchedData));
            return res.send(fetchedData);
        }
    });
});

This caches the data for one hour.