Add or remove cookies

11 lines
    if let Some(mut req_cookie_jar) = req
        .get_header(COOKIE)
        .and_then(|h| parse_cookies_to_jar(h).ok())
    {
        // Read and log a specific cookie
        log::info!(
            "The value of myCookie is {}",
            req_cookie_jar
                .get("myCookie")
                .map(|c| c.value())
                .unwrap_or_default()
        );
        // Remove a cookie from the request
        req_cookie_jar.remove(Cookie::named("myCookie"));
        // rebuild `cookie` header
        let new_hdr = req_cookie_jar
            .iter()
            .map(ToString::to_string)
            .collect::<Vec<_>>()
            .join("; ");

        req.set_header(COOKIE, new_hdr);
    } else {
        log::warn!("Header cookie absent or could not be parsed");
    }

    log::info!(
        "Header cookie = {}",
        req.get_header(COOKIE)
            .and_then(|h| h.to_str().ok())
            .unwrap_or_default(),
    );

    // Remove all cookies from the request
    req.remove_header(COOKIE);
1 line
    // Set a cookie in response
    beresp.set_header(SET_COOKIE, "myCookie=foo; path=/; max-age=60");

    // You can set multiple cookies in one response
    beresp.append_header(SET_COOKIE, "mySecondCookie=bar; httpOnly");

    // It is usually a good idea to prevent downstream caching of
    // responses that set cookies
    beresp.set_header(CACHE_CONTROL, "no-store, private");
2 lines
fn parse_cookies_to_jar(value: &HeaderValue) -> Result<CookieJar, Error> {
    let mut jar = CookieJar::new();
    for cookie in value.to_str()?.split(';').map(Cookie::parse_encoded) {
        jar.add_original(cookie?.into_owned());
    }
    Ok(jar)
}