Struct Headers 

pub struct Headers { /* private fields */ }

Represents HTTP headers with support for multiple values per key.

Implementations

impl Headers

pub fn new() -> Self

Create a new empty header collection.

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

Insert a header, replacing any existing values.

pub fn append(&mut self, name: impl Into<HeaderName>, value: impl Into<String>)

Append a header value (for headers that can have multiple values).

pub fn get(&self, name: impl Into<HeaderName>) -> Option<&str>

Get the first value for a header (most common use case).

pub fn get_all(&self, name: impl Into<HeaderName>) -> Option<&[String]>

Get all values for a header.

pub fn contains(&self, name: impl Into<HeaderName>) -> bool

Check if a header exists.

pub fn remove(&mut self, name: impl Into<HeaderName>) -> Option<Vec<String>>

Remove a header and return its values.

pub fn len(&self) -> usize

Get the number of unique header names.

pub fn is_empty(&self) -> bool

Check if headers are empty.

pub fn iter(&self) -> impl Iterator<Item = (&HeaderName, &Vec<String>)>

Iterate over headers in insertion order.

pub fn clear(&mut self)

Clear all headers.

Trait Implementations

impl Clone for Headers

fn clone(&self) -> Headers

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Headers

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

Formats the value using the given formatter.

impl Default for Headers

fn default() -> Self

Returns the “default value” for a type.

impl Display for Headers

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

Formats the value using the given formatter.