Struct actix_web::middleware::DefaultHeaders

pub struct DefaultHeaders { /* fields omitted */ }

Middleware for setting default response headers.

This middleware does not set header if response headers already contains it.

use actix_web::{web, http, middleware, App, HttpResponse};

fn main() {
    let app = App::new()
        .wrap(middleware::DefaultHeaders::new().header("X-Version", "0.2"))
        .service(
            web::resource("/test")
                .route(web::get().to(|| HttpResponse::Ok()))
                .route(web::method(http::Method::HEAD).to(|| HttpResponse::MethodNotAllowed()))
        );
}

Implementations

impl DefaultHeaders

pub fn new() -> DefaultHeaders

Construct DefaultHeaders middleware.

pub fn header<K, V>(self, key: K, value: V) -> Self where
    HeaderName: TryFrom<K>,
    <HeaderName as TryFrom<K>>::Error: Into<HttpError>,
    HeaderValue: TryFrom<V>,
    <HeaderValue as TryFrom<V>>::Error: Into<HttpError>, 

Set a header.

pub fn content_type(self) -> Self

Set CONTENT-TYPE header if response does not contain this header.

Trait Implementations

impl Clone for DefaultHeaders

fn clone(&self) -> DefaultHeaders

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for DefaultHeaders

fn default() -> Self

Returns the “default value” for a type.

impl<S, B> Transform<S> for DefaultHeaders where
    S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
    S::Future: 'static, 

type Request = ServiceRequest

Requests handled by the service.

type Response = ServiceResponse<B>

Responses given by the service.

type Error = Error

Errors produced by the service.

type InitError = ()

Errors produced while building a transform service.

type Transform = DefaultHeadersMiddleware<S>

The TransformService value created by this factory

type Future = Ready<Result<Self::Transform, Self::InitError>>

The future response value.

fn new_transform(&self, service: S) -> Self::Future

Creates and returns a new Transform component, asynchronously

fn map_init_err<F, E>(self, f: F) -> TransformMapInitErr<Self, S, F, E> where
    F: Fn(Self::InitError) -> E + Clone, 

Map this transforms’s factory error to a different error, returning a new transform service factory.