Struct WhatCache 

pub struct WhatCache { /* private fields */ }

Multi-level cache for the What framework

Implementations

impl WhatCache

pub fn new() -> Self

Create a new cache with default settings

pub fn with_config(config: CacheConfig) -> Self

Create a cache with custom configuration

pub async fn get(&self, key: &CacheKey) -> Option<CachedValue>

Get a cached page/content

pub async fn set(&self, key: &CacheKey, value: CachedValue)

Cache a page/content

pub async fn set_with_tags( &self, key: &CacheKey, value: CachedValue, tags: &[&str], )

Cache a page/content and associate it with tags for targeted invalidation. Tags are typically collection names (e.g., “posts”, “users”).

pub async fn set_with_ttl( &self, key: &CacheKey, value: CachedValue, _ttl: Duration, )

Cache a page/content with custom TTL

pub async fn get_api(&self, url: &str) -> Option<String>

Get cached API response

pub async fn set_api(&self, url: &str, response: String)

Cache API response

pub async fn invalidate(&self, key: &CacheKey)

Invalidate a specific cache entry

pub async fn invalidate_by_tag(&self, tag: &str)

Invalidate all entries matching a tag. If no entries are tagged, falls back to full cache clear.

pub async fn invalidate_content_type(&self, content_type: &str)

Invalidate all content cache entries for a specific content type / collection. Uses the tag index for targeted invalidation. If no entries are tagged, falls back to full cache clear for safety.

pub async fn invalidate_user(&self, user_id: &str)

Invalidate all cache entries for a specific user. Uses prefix matching on cache keys.

pub async fn clear_all(&self)

Clear all caches

pub fn stats(&self) -> CacheStats

Get cache statistics

Trait Implementations

impl Clone for WhatCache

fn clone(&self) -> WhatCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for WhatCache

fn default() -> Self

Returns the “default value” for a type.