Struct GuardContext 

pub struct GuardContext<'a> { /* private fields */ }

Provides access to request parts that are useful during routing.

Implementations

impl<'a> GuardContext<'a>

pub fn head(&self) -> &RequestHead

Returns reference to the request head.

pub fn req_data(&self) -> Ref<'a, Extensions>

Returns reference to the request-local data/extensions container.

pub fn req_data_mut(&self) -> RefMut<'a, Extensions>

Returns mutable reference to the request-local data/extensions container.

pub fn header<H>(&self) -> Option<H>

where H: Header,

Extracts a typed header from the request.

Returns None if parsing H fails.

Examples

use actix_web::{guard::fn_guard, http::header};

let image_accept_guard = fn_guard(|ctx| {
    match ctx.header::<header::Accept>() {
        Some(hdr) => hdr.preference() == "image/*",
        None => false,
    }
});

pub fn app_data<T>(&self) -> Option<&T>

where T: 'static,

Counterpart to HttpRequest::app_data.

Trait Implementations

impl<'a> Debug for GuardContext<'a>

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

Formats the value using the given formatter.