Attribute Macro cacheable 

#[cacheable]

Cache an ordinary async function with explicit local-cache metadata.

The decorated function must be async, return Result<T, E>, and receive the cache as an explicit argument referenced by cache = .... The generated wrapper returns hydracache::CacheResult<T> because cache errors can also be produced outside the user loader.

Example

use hydracache::{cacheable, HydraCache};

#[cacheable(
    cache = cache,
    key_segments = ["profile", profile_id],
    tag_segments = [["profile", profile_id], ["profiles"]],
    ttl_secs = 60
)]
async fn load_profile(
    cache: &HydraCache,
    profile_id: u64,
) -> Result<Profile, LoadError> {
    repo_load_profile(profile_id).await
}