Function session_cookie 

pub fn session_cookie(
    session_id: &str,
    cookie_name: &str,
    ttl_secs: u64,
) -> String

Build a Set-Cookie header value that stores session_id in cookie_name with HttpOnly, SameSite=Lax, Path=/, and Max-Age.

Example

use rust_web_server::{session, header::Header};

let value = session::session_cookie("abc123", "sid", 3600);
// response.headers.push(Header { name: "Set-Cookie".to_string(), value });