Function serv::sync::serv_state

pub fn serv_state<F, S, Req, Resp, E>(state: S, f: F) -> HyperServicewhere
    F: for<'a> Fn(&'a S, Req) -> Result<Resp, E> + 'static,
    S: 'static,
    Req: for<'de> Deserialize<'de> + 'static,
    Resp: Serialize + 'static,
    E: From<Error> + Debug + Error + 'static,

serv_state builds HyperService with given function F and state S.