future_http.dart

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


Future makeRequest(String url) => http.get(url)
    .then((res) => res.body);

void main() {
    makeRequest('http://www.google.com')
        .then((value) => print(value))
        .catchError((e) => print(e.toString()));
}