One signal push notification node js API - node.js

Question

Push notification node js API using One signal
Hello guys, I've watched a tutorial to implement push notifications on flutter app project.
the code I'll show is how to set up a push notification on node js API using one signal.
I need help to know how to view the notification using One Signal API.
here is the notification service folder
notification.services.js
const { ONE_SIGNAL_API_KEY } = require('../utils/config')
const { info } = require('../utils/logger')
const sendNotification = async (data, callback) => {
const headers = {
'Content-Type': 'application/json; charset=utf-8',
Authorization: 'Basic ' + ONE_SIGNAL_API_KEY,
}
const options = {
host: 'onesignal.com',
port: 443,
path: '/api/v1/notifications',
method: 'POST',
headers: headers,
}
const https = require('https')
const req = https.request(options, res => {
res.on('data', data => {
info(JSON.parse(data))
return callback(null, JSON.parse(data))
})
})
req.on('error', e => {
return callback({
message: e,
})
})
req.write(JSON.stringify(data))
req.end()
}
here is the notification controller folder
notification.controller.js
const { ONE_SIGNAL_APP_ID } = require('../utils/config')
const notificationsService = require('../services/notifications.services')
const sendNotification = (req, res, next) => {
const message = {
app_id: ONE_SIGNAL_APP_ID,
headings: { en: 'All Devices' },
contents: { en: 'Send push notifications to all devices' },
included_segments: ['All'],
content_available: true,
small_icon: 'ic_notification_icon',
data: {
// eslint-disable-next-line quotes
PushTitle: "Porc'Ivoire",
},
}
notificationsService.sendNotification(message, (error, results) => {
if (error) {
next(error)
}
return res.status(200).send({
message: 'Success',
data: results,
})
})
}
const sendNotificationToDevice = (req, res, next) => {
var message = {
app_id: ONE_SIGNAL_APP_ID,
headings: { en: '🤑 Paiement accepté' },
contents: {
en: 'Votre paiment a été effrctué avec succès',
},
included_segments: ['included_player_ids'],
include_player_ids: req.body.devices,
content_available: true,
small_icon: 'ic_notification_icon',
data: {
// eslint-disable-next-line quotes
PushTitle: "Porc'Ivoire",
},
}
notificationsService.sendNotification(message, (error, results) => {
if (error) {
next(error)
}
return res.status(200).send({
message: 'Success',
data: results,
})
})
}
module.exports = {
sendNotification,
sendNotificationToDevice,
}