How to share state between Routers and Channels？

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My project needs to use http and websocket to connect with clients. I know I can use Extension to share state between routes,

async fn after_routes(router: Router, _ctx: &AppContext) -> Result<Router> {
    let shared_state= SharedState::new();
    let state_wrapped = Arc::new(RwLock::new(shared_state));
    Ok(router.layer(Extension(state_wrapped )))
}

but how can I access the shared state in Channel?