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::{http, middleware, App, HttpResponse};

fn main() {
    let app = App::new()
        .middleware(
            middleware::DefaultHeaders::new()
                .header("X-Version", "0.2"))
        .resource("/test", |r| {
             r.method(http::Method::GET).f(|_| HttpResponse::Ok());
             r.method(http::Method::HEAD).f(|_| HttpResponse::MethodNotAllowed());
        })
        .finish();
}

Methods

impl DefaultHeaders

pub fn new() -> DefaultHeaders

Construct DefaultHeaders middleware.

pub fn header<K, V>(self, key: K, value: V) -> Self where
    HeaderName: HttpTryFrom<K>,
    HeaderValue: HttpTryFrom<V>, 

Set a header.

pub fn content_type(self) -> Self

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

Trait Implementations

impl Default for DefaultHeaders

fn default() -> Self

Returns the "default value" for a type.

impl<S> Middleware<S> for DefaultHeaders

fn response(
    &self,
    _: &mut HttpRequest<S>,
    resp: HttpResponse
) -> Result<Response>

Method is called when handler returns response, but before sending http message to peer.

fn start(&self, req: &mut HttpRequest<S>) -> Result<Started>

Method is called when request is ready. It may return future, which should resolve before next middleware get called.

fn finish(&self, req: &mut HttpRequest<S>, resp: &HttpResponse) -> Finished

Method is called after body stream get sent to peer.