Await future for a specific time

Question

How would you wait for future response for a specific amount of time?

Say, we make a http post request and await for its response before we close the http request, b

Answer 1

You can do it very easily

try {
       var response = await Http.get("YourUrl").timeout(const Duration(seconds: 3));
       if(response.statusCode == 200){
          print("Success");
       }else{
          print("Something wrong");
       }
 } on TimeoutException catch (e) {
     print('Timeout');
 } on Error catch (e) {
     print('Error: $e');
 }

This example sets timeout to 3 second. If it has been 3 seconds and no response received, it will throw TimeoutException

Import this :

import 'package:http/http.dart' as Http;
import 'dart:async';

Answer 2

You can use Future.any constructor to make a race condition

final result = await Future.any([
  Future.value(42),
  Future.delayed(const Duration(seconds: 3))
]);

You can also use Future.timout method

final result = await Future.value(42).timeout(const Duration(seconds: 3));