Function do_something 

pub async fn do_something<T, E>(
    base_url: &str,
    method: Method,
    params: Option<HashMap<String, String>>,
    body: &str,
    headers: Option<Headers>,
    show_debug: Option<bool>,
) -> Result<T, E>
where
    T: for<'a> Deserialize<'a> + Debug + 'static + From<String>,
    E: Debug + Display + From<AppError> + From<Error> + From<Error>,