pub trait Cache: Send + Sync {
// Required methods
fn get<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, Error>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn set<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
value: Vec<u8>,
) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn delete<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 str,
) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn clear<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
}Expand description
User-supplied L2 persistent cache. Implementations decide their own TTL, eviction, and backend (file, KV, Redis, IndexedDB, …).
Keys are full URLs (e.g. https://jpzip.nadai.dev/p/231.json). Values
are the raw JSON bytes returned by the CDN.