Cancel firebase function

Question

Is it possible to cancel Firebase HTTPS Callable function during it's request? I have a function with some predictive search. It is called each time when user inputs a character in a search field.

Code:

func startSearch(_ query: String, completion: @escaping (_ results: [SearcheResults]) -> Void) {

    let data = [
        "query": query
    ]

    functions.httpsCallable("startSearch").call(data) { (result, error) in

        if error != nil {
          completion([])
      } else if let data = result?.data {
            // some data manipulations
            completion(elements)
        }
    }
}

Or maybe somehow dismiss earlier completions? Because for now, if user is very rapid and enter text, for example "Berlin" - completion will fire 6 times. I'd like to have a way to cancel a function or cancel previous completions.

Thanks in advance.

Answer 1

You should try debounce, basically in debounce before you fire a request you wait for short span(eg:- 2 secs), and if user types in that span again, timer is reset to again 2 secs,check the link

Once the call is made it cannot be cancelled, It will Either get executed to completition or timedout.