removePushNotification.js

function removePushNotification(body, prevNotificationID){

    var notification = new apn.Notification();

    notification.expiry = Math.floor(Date.now() / 1000) + 60; // Expires 1 min from now.
    notification.badge = 1; //you can update the count as it required
    notification.alert =  body.alertMessage;

    // for Silent Notification
    notification.sound = "";
    notification.contentAvailable = true;
  
    notification.payload = {'messageFrom': 'John Appleseed'};
    notification.topic = "<application bundle identifier>";
    notification.id = prevNotificationID;

    apnProvider.send(notification, body.deviceToken).then( (result) => {
        console.log('APNS Response : \n', result);
        res.send('POST App Push Notification');
    });
});