Function cacheResponse

cacheResponse(options?: ServerCacheOptions): Middleware
Server-side cache response middleware.

Uses cache-tag definitions from the matched endpoint (already available on ctx.items.__endpoint_meta.cacheTags) to compute deterministic cache keys from request data (params, query, body, headers).
- GET: Computes cache key → serves cached response if valid → handler never executes. On cache miss, runs the handler and caches the response.
- Mutation (POST/PUT/PATCH/DELETE): Lets the handler run, then invalidates all cache entries whose key starts with any of the endpoint's cache tag names.
Parameters
- options: ServerCacheOptions = {}
  Cache configuration.
Returns Middleware
A server-side Middleware.
Example
```
server.handle(ListTodos, listHandler, {
    middlewares: [cacheResponse({ defaultTtl: 30_000 })]
});
```
- Defined in libs/server/src/middlewares/ResponseCache.ts:110