Struct actix_web::middleware::DefaultHeaders

[+] Show declaration

pub struct DefaultHeaders { /* fields omitted */ }

[−] Expand description

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

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Construct DefaultHeaders middleware.

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

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Set a header.

pub fn content_type(self) -> Self

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

Trait Implementations

impl Default for DefaultHeaders

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fn default() -> Self

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Returns the "default value" for a type.

impl<S> Middleware<S> for DefaultHeaders

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

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

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

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

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

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Method is called after body stream get sent to peer.