Struct actix_web::web::Header

pub struct Header<T>(pub T);

Extract typed headers from the request.

To extract a header, the inner type T must implement the Header trait.

Examples

use actix_web::{get, web, http::header};

#[get("/")]
async fn index(date: web::Header<header::Date>) -> String {
    format!("Request was sent at {}", date.to_string())
}

Implementations

impl<T> Header<T>

pub fn into_inner(self) -> T

Unwrap into the inner T value.

Trait Implementations

impl<T: Clone> Clone for Header<T>

fn clone(&self) -> Header<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Header<T>

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

Formats the value using the given formatter.

impl<T> Deref for Header<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for Header<T>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<T> Display for Header<T> where
    T: Display, 

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

Formats the value using the given formatter.

impl<T: Eq> Eq for Header<T>

impl<T> FromRequest for Header<T> where
    T: ParseHeader, 

type Error = ParseError

The associated error which can be returned.

type Future = Ready<Result<Self, Self::Error>>

Future that resolves to a Self.

type Config = ()

Configuration for this extractor.

fn from_request(req: &HttpRequest, _: &mut Payload) -> Self::Future

Create a Self from request parts asynchronously.

fn extract(req: &HttpRequest) -> Self::Future

Create a Self from request head asynchronously.

fn configure<F>(f: F) -> Self::Config where
    F: FnOnce(Self::Config) -> Self::Config, 

Create and configure config instance.

impl<T: Ord> Ord for Header<T>

fn cmp(&self, other: &Header<T>) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<T: PartialEq> PartialEq<Header<T>> for Header<T>

fn eq(&self, other: &Header<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Header<T>) -> bool

This method tests for !=.

impl<T: PartialOrd> PartialOrd<Header<T>> for Header<T>

fn partial_cmp(&self, other: &Header<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T> StructuralEq for Header<T>

impl<T> StructuralPartialEq for Header<T>