How Can I Handle Caching for My E-Commerce Site Using React and Deno?

For your Deno + React setup:
- Set `Cache-Control` headers in your Hono API for your product data; even caching for a few minutes can be helpful.
- Use a CDN to lessen the load on your Deno backend by caching responses globally.
- On the frontend, React Query is fantastic for client-side caching and managing data effectively without making too many requests. Just avoid caching user-specific data but feel free to cache static lists.

Definitely look into React Query for your caching needs. It's particularly effective if you're mindful about user-specific data; it can vary based on individual user interactions.

Check out this guide on caching: https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/Caching. If you need finer control, consider implementing in-memory caches as well.

Have you considered using Deno KV for caching? Just remember that databases and caches serve different purposes, so using a traditional database for caching may not provide the performance boost you're looking for.

You might want to look into using a CDN like Cloudflare or Fastly. They can act as a front for your API, caching responses globally and reducing the load on your Deno server.