How can i mutate my cookie in a middleware

[Necoo33]

I currently coded a jwt authentication flow with assigning it's value to cookie and i want to add a cookie refresher middleware to that. In every page load it should resend the authentication cookie if it's already exist.

So how can i mutate my cookies in a middleware?

[robjtede]

use actix_web_lab::middleware::{from_fn, Next};

             App::new()
                 // ...
                .wrap(from_fn(refresh_cookies))

use actix_web::{
    body::MessageBody,
    cookie::Cookie,
    dev::{ServiceRequest, ServiceResponse},
    Error,
};
use actix_web_lab::middleware::{from_fn, Next};

async fn refresh_cookies(
    req: ServiceRequest,
    next: Next<impl MessageBody>,
) -> Result<ServiceResponse<impl MessageBody>, Error> {
    let auth_cookie = req.cookie("web-auth").clone();

    let mut res = next.call(req).await?;

    if let Some(cookie) = auth_cookie {
        let refreshed_cookie = Cookie::build(cookie.name(), cookie.value())
            .domain("example.com")
            // re-apply other original settings
            .finish();

        res.response_mut().add_cookie(&refreshed_cookie);
    };

    Ok(res)
}

[Necoo33]

It worked, thank you.