Installation

The cookie machinery is not included in the project scaffolded by pavex new. You need to add a few lines to set it up:

use pavex::{Blueprint, blueprint::from, cookie::INJECT_RESPONSE_COOKIES};

pub fn blueprint() -> Blueprint {
    let mut bp = Blueprint::new();
    bp.import(from![
        // Other imports [...]
        pavex // (1)!
    ]);
    bp.post_process(INJECT_RESPONSE_COOKIES); // (2)!
    // [...]
}

1. Bring pavex's cookie components into scope (e.g. ResponseCookies).
2. Attach cookies to the outgoing response.

It's enough to add INJECT_RESPONSE_COOKIES to your middleware stack if you're already importing components from the pavex crate.