Struct KeyExtractor 

pub struct KeyExtractor { /* private fields */ }

Strategy used to turn requests into cache keys.

The layer ships with helpers for common patterns such as KeyExtractor::path_and_query and KeyExtractor::path. You can also provide your own extractor with KeyExtractor::custom.

Implementations

impl KeyExtractor

pub fn path_and_query() -> Self

Builds an extractor that uses method + path + query for GET/HEAD requests.

pub fn path() -> Self

pub fn custom<F>(func: F) -> Self

where F: Fn(&Method, &Uri) -> Option<String> + Send + Sync + 'static,

pub fn extract(&self, method: &Method, uri: &Uri) -> Option<String>

Extracts a cache key from the provided request parts.

Returns None when the request should be skipped.

Trait Implementations

impl Clone for KeyExtractor

fn clone(&self) -> KeyExtractor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for KeyExtractor

fn default() -> Self

Returns the “default value” for a type.