Struct HeaderComposer 

pub struct HeaderComposer { /* private fields */ }

Composes HTTP headers with priority-based deduplication.

Custom headers (higher priority) override fingerprint headers (lower priority) when they share the same header name. Header names are compared case-insensitively.

Example

let composer = HeaderComposer::new()
    .with_fingerprint_headers(fp_headers)
    .with_custom_headers(vec![("user-agent", "custom-ua")]);

let headers = composer.compose();
// The custom user-agent overrides the fingerprint one.

Implementations

impl HeaderComposer

pub fn new() -> Self

Creates a new empty HeaderComposer.

pub fn with_fingerprint_headers<I, K, V>(self, headers: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: Into<String>, V: Into<String>,

Adds fingerprint-derived headers (lower priority).

pub fn with_custom_headers<I, K, V>(self, headers: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: Into<String>, V: Into<String>,

Adds custom headers (higher priority, override fingerprint headers).

pub fn compose(self) -> Result<HeaderMap, ComposeError>

Composes the final HeaderMap with deduplication.

Returns an error if any header name or value is invalid.

Trait Implementations

impl Default for HeaderComposer

fn default() -> Self

Returns the “default value” for a type.