Help Understanding Cache Middleware
My understanding of caching is not great and I wonder if someone could help me with a few questions I have on caching.
If there are any learning resources that you think could help me I would be ever so grateful.
- How does Hono handle caching of requests for api endpoints or static assets on the server and on the client.
- Are requests/responses cached on the server as a default?
- Is server/client caching something I have to implement using the cache middleware.
- Is the cache middleware helper only for client cache or can it be used for server caching.
- How do I access cache information on the server.
- How does the serveStatic() method handle caching requests/responses for html css and img and javascript files.
- If I am serving static assets do I have to create the cache control for both the server and client .
- header for static assets. Is this done using the cache middleware.
Just trying to learn more and increase my understanding.
Regards
Jim
Learning Project Background.
I am working on a learning project. Four static pages pages home/login/signup/dashboard.
These pages are all served using the serveStatic() method.
I am also creating a simple crud api.
Just trying to learn more.
2 Replies
How does Hono handle caching?
Hono uses the Cache-Control header to determine how to cache requests and responses. This header is included in the communication between your server and client (browser) and specifies how long a response should be stored and reused.
By default, Hono doesn't automatically cache requests or responses on the server side. Caching is something you, the developer, need to explicitly enable using the cache middleware.
What is the cache middleware helper for?
The cache middleware is a tool that helps you implement caching logic in your Hono application. It doesn't directly cache data on the client side, but it allows you to set Cache-Control headers in your responses, which can then be used by the client (browser) to cache content.
Can I access cached information on the server?
Hono doesn't currently provide a built-in way to directly access cached information on the server. However, you can set up caching with expiry times and let the browser handle caching for you.
How does serveStatic handle caching?
The serveStatic method itself doesn't implement caching by default. However, you can use the cache middleware in conjunction with serveStatic to set appropriate Cache-Control headers for static assets like HTML, CSS, images, and JavaScript files.
Do I need to create cache headers for static assets?
Yes, if you want to control how static assets are cached on both the server and client, you'll need to create Cache-Control headers using the cache middleware. This allows you to specify how long these assets should be stored and reused before prefetching from the server.
In summary:
- Hono relies on Cache-Control headers for caching.
- Caching is not enabled by default; you need the cache middleware.
- The middleware helps set cache headers, not directly cache data on clients.
- You cannot directly access cached data on the server (yet).
- Use cache middleware with serveStatic to control the caching of static assets.
Thanks for the help