Struct cache_control::CacheControl[−][src]

pub struct CacheControl {
    pub cachability: Option<Cachability>,
    pub max_age: Option<Duration>,
    pub s_max_age: Option<Duration>,
    pub max_stale: Option<Duration>,
    pub min_fresh: Option<Duration>,
    pub must_revalidate: bool,
    pub proxy_revalidate: bool,
    pub immutable: bool,
    pub no_store: bool,
    pub no_transform: bool,
}

Expand description

Represents a Cache-Control header

Fields

cachability: Option<Cachability>max_age: Option<Duration>

The maximum amount of time a resource is considered fresh. Unlike Expires, this directive is relative to the time of the request.

s_max_age: Option<Duration>

Overrides max-age or the Expires header, but only for shared caches (e.g., proxies). Ignored by private caches.

max_stale: Option<Duration>

Indicates the client will accept a stale response. An optional value in seconds indicates the upper limit of staleness the client will accept.

min_fresh: Option<Duration>

Indicates the client wants a response that will still be fresh for at least the specified number of seconds.

must_revalidate: bool

Indicates that once a resource becomes stale, caches do not use their stale copy without successful validation on the origin server.

proxy_revalidate: bool

Like must-revalidate, but only for shared caches (e.g., proxies). Ignored by private caches.

immutable: bool

Indicates that the response body will not change over time.

no_store: bool

The response may not be stored in any cache.

no_transform: bool

An intermediate cache or proxy cannot edit the response body, Content-Encoding, Content-Range, or Content-Type.

Implementations

[src]

impl CacheControl

[src]

pub fn from_value(value: &str) -> Option<Self>

Parses the value of the Cache-Control header (i.e. everything after “Cache-Control:”).

use cache_control::{Cachability, CacheControl};
use std::time::Duration;

let cache_control = CacheControl::from_value("public, max-age=60").unwrap();
assert_eq!(cache_control.cachability, Some(Cachability::Public));
assert_eq!(cache_control.max_age, Some(Duration::from_secs(60)));