Trait CacheIssuer 

pub trait CacheIssuer:
    Send
    + Sync
    + 'static {
    type Key: Hash + Eq + Send + Sync + 'static;

    // Required method
    fn issue(
        &self,
        req: &mut Request,
        depot: &Depot,
    ) -> impl Future<Output = Option<Self::Key>> + Send;
}

Issues a cache key for a request, deciding whether the request should be cached.

Required Associated Types

type Key: Hash + Eq + Send + Sync + 'static

The key type used to identify a cached entry.

Required Methods

fn issue( &self, req: &mut Request, depot: &Depot, ) -> impl Future<Output = Option<Self::Key>> + Send

Issue a key for the request. If it returns None, the request will not be cached.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl CacheIssuer for RequestIssuer

type Key = String

impl<F, K> CacheIssuer for F

where F: Fn(&mut Request, &Depot) -> Option<K> + Send + Sync + 'static, K: Hash + Eq + Send + Sync + 'static,

type Key = K