Ionic 3 push notification with firebase

I can not send a push notification with Firebase on Ionic 3. I have re-done the project several times, I have seen several tutorials, I have documentation, and no results so far. Who can at least look at my code to find out what's wrong?

CONFIG.XML

  <platform name="ios">
        <resource-file src="GoogleService-Info.plist" />
    </platform>
    <plugin name="phonegap-plugin-push" spec="^2.2.3">
        <variable name="SENDER_ID" value="931157632289" />
    </plugin>

App.componet.ts

   platform.ready().then(() => {

      statusBar.styleDefault();
      splashScreen.hide();
      alert('TESTE1');
      this.push.hasPermission()
      .then((res: any) => {
        if (res.isEnabled) {
          alert('We have permission to send push notifications');



        } else {
          alert('We do not have permission to send push notifications');
          const options: PushOptions = {
            android: {},
            ios: {
              alert: 'true',
              badge: true,
              sound: 'false'
            },
            windows: {},
            browser: {
              pushServiceURL: 'http://push.api.phonegap.com/v1/push'
            }
          };

          const pushObject: PushObject = this.push.init(options);


          pushObject.on('notification').subscribe((notification: any) => {
            alert(notification.message);
          });

          pushObject.on('registration').subscribe((registration: any) =>{
            alert( registration);
          });

          pushObject.on('error').subscribe(error =>{ 
            alert(error);
          });

        }

      });



    });

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