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read_through_async

sz_orm_pool::cache

Function read_through_async 

Source 
pub async fn read_through_async<F, Fut>(
    cache: &dyn Cache,
    key: &str,
    ttl: Option<Duration>,
    loader: F,
) -> Result<Option<Vec<u8>>, CacheError>
where
    F: FnOnce() -> Fut,
    Fut: Future<Output = Result<Option<Vec<u8>>, CacheError>>,
Expand description

Read-through（异步版）：缓存未命中时通过异步 loader 回源加载，写入缓存后返回

用于数据库等异步数据源的回源加载场景。