Struct RequestMetadata 

pub struct RequestMetadata { /* private fields */ }

Protocol-agnostic metadata extracted from the request transport layer.

HTTP headers, gRPC metadata, and WS auth tokens are all normalized into a string-keyed map. Header names are lowercased for consistent lookup.

Note: this is a single-value map — duplicate keys are overwritten (last-write-wins). Multi-valued headers (e.g. Set-Cookie) only retain the last value. This is intentional for simplicity; most interceptor use cases only need single-valued lookups.

Implementations

impl RequestMetadata

pub fn new(protocol: Protocol) -> Self

Create empty metadata for the given protocol.

pub fn insert(&mut self, key: impl Into<String>, value: impl Into<String>)

Insert a header (key is lowercased). Duplicate keys are overwritten.

pub fn get(&self, key: &str) -> Option<&str>

Get a header value by name (case-insensitive).

pub fn protocol(&self) -> Protocol

Get the protocol.

pub fn headers(&self) -> &HashMap<String, String>

Get all headers.

Trait Implementations

impl Clone for RequestMetadata

fn clone(&self) -> RequestMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RequestMetadata

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

Formats the value using the given formatter.

impl Default for RequestMetadata

fn default() -> RequestMetadata

Returns the “default value” for a type.