Struct RetrievalMetadata 

pub struct RetrievalMetadata {
    pub etag: Option<String>,
    pub cache_control: Option<String>,
    pub last_modified: Option<DateTime<Utc>>,
}

Cache and integrity headers returned alongside a retrieved body.

etag is the body’s content_hash (immutable; ideal cache key). cache_control and last_modified are reported verbatim from the upstream registry.

Fields

etag: Option<String>

Strong validator for conditional retrieval (If-None-Match).

cache_control: Option<String>

Raw Cache-Control header value, if any.

last_modified: Option<DateTime<Utc>>

Parsed Last-Modified header, if any.

Trait Implementations

impl Clone for RetrievalMetadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RetrievalMetadata

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RetrievalMetadata

fn default() -> Self

Returns the “default value” for a type.