Struct actix_web::http::header::AcceptLanguage

pub struct AcceptLanguage(pub Vec<QualityItem<LanguageTag>>);

Accept-Language header, defined in RFC7231

The Accept-Language header field can be used by user agents to indicate the set of natural languages that are preferred in the response.

ABNF

Accept-Language = 1#( language-range [ weight ] )
language-range  = <language-range, see [RFC4647], Section 2.1>

Example values

• da, en-gb;q=0.8, en;q=0.7
• en-us;q=1.0, en;q=0.5, fr

Examples

use actix_web::HttpResponse;
use actix_web::http::header::{AcceptLanguage, LanguageTag, qitem};

let mut builder = HttpResponse::Ok();
let langtag = LanguageTag::parse("en-US").unwrap();
builder.insert_header(
    AcceptLanguage(vec![
        qitem(langtag),
    ])
);

use actix_web::HttpResponse;
use actix_web::http::header::{AcceptLanguage, LanguageTag, QualityItem, q, qitem};

let mut builder = HttpResponse::Ok();
builder.insert_header(
    AcceptLanguage(vec![
        qitem(LanguageTag::parse("da").unwrap()),
        QualityItem::new(LanguageTag::parse("en-GB").unwrap(), q(800)),
        QualityItem::new(LanguageTag::parse("en").unwrap(), q(700)),
    ])
);

Trait Implementations

impl Clone for AcceptLanguage

fn clone(&self) -> AcceptLanguage

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AcceptLanguage

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

Formats the value using the given formatter.

impl Deref for AcceptLanguage

type Target = Vec<QualityItem<LanguageTag>>

The resulting type after dereferencing.

fn deref(&self) -> &Vec<QualityItem<LanguageTag>>

Dereferences the value.

impl DerefMut for AcceptLanguage

fn deref_mut(&mut self) -> &mut Vec<QualityItem<LanguageTag>>

Mutably dereferences the value.

impl Display for AcceptLanguage

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

Formats the value using the given formatter.

impl Header for AcceptLanguage

fn name() -> HeaderName

Returns the name of the header field

fn parse<T>(msg: &T) -> Result<Self, ParseError> where
    T: HttpMessage, 

Parse a header

impl IntoHeaderValue for AcceptLanguage

type Error = InvalidHeaderValue

The type returned in the event of a conversion error.

fn try_into_value(self) -> Result<HeaderValue, Self::Error>

Try to convert value to a HeaderValue.

impl PartialEq<AcceptLanguage> for AcceptLanguage

fn eq(&self, other: &AcceptLanguage) -> bool

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

fn ne(&self, other: &AcceptLanguage) -> bool

This method tests for !=.

impl StructuralPartialEq for AcceptLanguage