如何使用 JavaScript 从 OneSignal 获取用户 ID？

我在我的 webview 应用程序中实现了 OneSignal CURL 代码，该代码向每个用户发送通知。

为了根据 OneSignal 的用户 ID 定位特定用户，我尝试使用下面的代码来获取用户 ID

<script src="https://cdn.onesignal.com/sdks/OneSignalSDK.js" async=""></script>

  window.OneSignal = window.OneSignal || [];
  OneSignal.push(function() {
    OneSignal.init({
      appId: "xxxxx",
    });
    OneSignal.on('subscriptionChange', function (isSubscribed) {
        console.log("The user's subscription state is now:", isSubscribed);
        OneSignal.getUserId(function(userId) {
          console.log("OneSignal User ID:", userId);
          // (Output) OneSignal User ID: 270a35cd-4dda-4b3f-b04e-41d7463a2316    
         });
    });
  });

// 输出可能什么也没有订阅变更不是真的。

还有这个：

window.OneSignal = window.OneSignal || [];
  OneSignal.push(function() {
    OneSignal.init({
      appId: "abbd6373-f394-4912-a314-40493c2a6201",
    });
     OneSignal.getUserId(function(userid){
        console.log(userid);
        $(".some").html(userid);
      });
  });

//输出'NULL'在用户 ID 上。

我想要做的就是从 OneSignal 获取用户 ID 并在下面的代码中使用它来定位特定用户：

notify("Alert","Testing Notification");
        $content = array("en" => "Testing Notification ");
        $fields = array(
            'app_id' => "xxxxxx",
            'included_segments' => array('All'),
            'contents' => $content,
            'data' => array("en" => "bar"),
            'large_icon' =>"ic_launcher_round.png",
        );
    
    $fields = json_encode($fields);
    
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://onesignal.com/api/v1/notifications");
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json; charset=utf-8',
        'Authorization: Basic xxxxxx'
    ));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    
    $response = curl_exec($ch);
    curl_close($ch);

任何帮助是极大的赞赏..