Function open_notify::update

pub fn update(receiver: &Receiver) -> Option<Result<Vec<Spot>, String>>

Get current ISS spotting update that the spawned thread could fetched.

Parameters

• receiver: the channel receiver from preceded call to opennotify_org::init()

Returng value

• ⇒ None: No update available
• ⇒ Some(Result): Update available
  • ⇒ Ok(Vec<Spot>): vector of upcoming spotting events (see also open-notify documentation for details)
  • ⇒ Err(String): Error message about any occured http or json issue
    • e.g. `500 Internal Server Error“
    • some json parser error message if response from open-notify.org could not be parsed