Struct CacheLayer 

pub struct CacheLayer { /* private fields */ }

An in-memory response cache middleware.

Construct with CacheLayer::memory and configure with the builder methods ttl and vary_by_header.

Implementations

impl CacheLayer

pub fn memory(capacity: usize) -> Self

Create a new in-memory cache bounded to capacity entries.

Default TTL is 60 seconds. Adjust with .ttl().

pub fn ttl(self, secs: u64) -> Self

Set the time-to-live for cached entries.

pub fn vary_by_header(self, name: &str) -> Self

Include a request header in the cache key so that different values of that header produce separate cache entries.

Header name matching is case-insensitive. Call multiple times to vary by more than one header.

use rust_web_server::cache::CacheLayer;

let layer = CacheLayer::memory(500)
    .vary_by_header("Accept")
    .vary_by_header("Accept-Language");

Trait Implementations

impl Middleware for CacheLayer

fn handle( &self, request: &Request, connection: &ConnectionInfo, next: &dyn Application, ) -> Result<Response, String>