How to update cookies in FromRequestParts? #3201

alemandev · 2025-01-28T16:30:23Z

alemandev
Jan 28, 2025

Summary

I am using the PrivateCookieJar extractor from axum-extra (0.9.6).

Is there a way to update cookies within a FromRequestParts impl, given that the updated jar cannot be returned?

From the docs:

Note that methods like PrivateCookieJar::add, PrivateCookieJar::remove, etc updates the PrivateCookieJar and returns it. This value must be returned from the handler as part of the response for the changes to be propagated.

Example of what I am trying to achieve:

#[async_trait]
impl<S> FromRequestParts<S> for Session
where
    S: Send + Sync,
    Key: FromRef<S>,
{
    type Rejection = ();

    async fn from_request_parts(parts: &mut Parts, state: &S) -> Result<Self, Self::Rejection> {
        let cookie_jar = PrivateCookieJar::<Key>::from_request_parts(parts, state)
            .await
            .unwrap();

        let cookie = cookie_jar.get("session").unwrap();

        // Look for session and extend its expiration time
        let session = Session::find_and_extend(cookie.value()).await.unwrap();

        // Pass new expiration time to cookie
        let updated_jar = cookie_jar.add(Cookie::build(cookie).expires(session.expires));

        // How to propagate the updated cookie jar?

        Ok(session)
    }
}