How can I implement client-side caching in Next.js?

How can I implement client-side caching in Next.js?

You can implement client-side caching in Next.js using the built-in next/cache module or by leveraging libraries like SWR or React Query.

What are the benefits of using client-side caching?

Client-side caching improves performance by reducing the number of requests to the server, leading to faster load times and a better user experience.

Can you give me an example of using SWR for caching?

Sure! Here's a simple example:

import useSWR from 'swr';

const fetcher = (url) => fetch(url).then((res) => res.json());

function Component() {
  const { data, error } = useSWR('/api/data', fetcher);

  if (error) return <div>Failed to load</div>;
  if (!data) return <div>Loading...</div>;
  return <div>{data.message}</div>;
}

Are there any downsides to client-side caching?

Yes, potential downsides include stale data if the cache isn't invalidated properly and increased complexity in managing cache states.