Attribute Macro request_cookie 

#[request_cookie]

Extracts a specific cookie value or all cookies into a variable.

This attribute macro supports two syntaxes:

1. cookie(key => variable_name) - Extract a specific cookie value by key
2. cookie(variable_name) - Extract all cookies as a raw string

Usage

use hyperlane::*;
use hyperlane_macros::*;

#[request_cookie("session_id" => session_cookie_opt)]
async fn handle_with_session(ctx: Context) {
    if let Some(session) = session_cookie_opt {
        // Use the session cookie value
    }
}

For specific cookie extraction, the variable will be available as Option<String>. For all cookies extraction, the variable will be available as String.