使用cordova-plugin-fcm进行离子2推送通知

Question

您好我正在使用离子2并且需要以pubsub格式发送推送通知（用户将内容发布到主题并且订阅者在另一个应用上获得推送通知），已经实现了cordova-plugin-fcm https://github.com/fechanique/cordova-plugin-fcm

在其提到的文档页面上通过此代码发送推送通知

//POST: https://fcm.googleapis.com/fcm/send
//HEADER: Content-Type: application/json
//HEADER: Authorization: key=AIzaSy*******************
{
  "notification":{
    "title":"Notification title",  //Any value
    "body":"Notification body",  //Any value
    "sound":"default", //If you want notification sound
    "click_action":"FCM_PLUGIN_ACTIVITY",  //Must be present for Android
    "icon":"fcm_push_icon"  //White icon Android resource
  },
  "data":{
    "param1":"value1",  //Any data to be retrieved in the notification callback
    "param2":"value2"
  },
    "to":"/topics/topicExample", //Topic or single device
    "priority":"high", //If not set, notification won't be delivered on completely closed iOS app
    "restricted_package_name":"" //Optional. Set for application filtering
}

问题：在离子2应用程序中添加此代码的位置，是在完成执行后在.ts文件中添加到函数中还是在哪里？

发布内容的功能代码是： -

代码：job.ts

self.dataService.submitJob(newJob, uid, category)
  .then(function (snapshot) {
    loader.dismiss()
      .then(() => {
        self.viewCtrl.dismiss({
          newjob: newJob,
          uid: uid,
          category: category
        });
      }).then(() => {
        let toast = self.toastCtrl.create({
          message: 'Job Posted Succesfully',
          duration: 3000,
          position: 'top'
        });
        toast.present();
      });
  }, function (error) {
    console.error(error);
    loader.dismiss();
  });

我想知道的是，我必须在此处调用代码发送推送通知吗？