Function hyperbole::mw::cookie_opt

pub fn cookie_opt<const NAME: &'static str>(
    cx: HCons<HeaderMap, HNil>
) -> HCons<Field<Option<String>, NAME>, HCons<HeaderMap, HNil>>

Extract an optional cookie from the request context. The cookie name should be passed via const generic parameter.

The extracted cookie will be injected into the context as a named field.

Use with Ctx::map.

Examples

use hyperbole::{mw, Ctx, R};

let _ctx = Ctx::default().map(mw::cookie_opt::<"some_cookie">).map(
    |cx: R![some_cookie: Option<String>]| {
        println!("cookie value is {:?}", cx.head);
        cx
    },
);