91 lines
2.3 KiB
JavaScript
91 lines
2.3 KiB
JavaScript
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const admin = require('firebase-admin');
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class PushNotification {
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/**
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* Initialize firebase admin
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* {@link https://firebase.google.com/docs/admin/setup#initialize-sdk Initialize the SDK}.
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*/
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constructor() {
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this.admin = admin.initializeApp({
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credential: admin.credential.applicationDefault(),
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});
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this.messaging = this.admin.messaging();
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}
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/**
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* Generate payload
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* @param {{body: string, title: string, image_url: string}} payload
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* @param {admin.messaging.MessagingPayload} override override default payload
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*/
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generatePayload(payload, override) {
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return {
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notification: {
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body: payload.body,
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title: payload.title,
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},
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data: payload,
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apns: {
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payload: {
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aps: {
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'mutable-content': 1,
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},
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},
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fcm_options: {
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image: payload.image_url,
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},
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},
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android: {
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notification: {
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image: payload.image_url,
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},
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},
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...override,
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};
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}
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/**
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* Generate options
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* @param {admin.messaging.MessagingOptions} override override default options
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*/
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generateOptions(override) {
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return {
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contentAvailable: true,
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priority: 'high',
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timeToLive: 60 * 60 * 24,
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...override,
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};
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}
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/**
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* Send push notification
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* @param {string|string[]} deviceToken
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* @param {admin.messaging.MessagingPayload} payload
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* @param {admin.messaging.MessagingOptions} options
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* @returns {Promise.<admin.messaging.MessagingDevicesResponse>}
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* @example
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* const pushNotification = new PushNotification();
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* const payload = pushNotification.generatePayload({}) // {} = custom configuration
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* const options = pushNotification.generateOptions({}); // {} = custom configuration
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*
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* pushNotification
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* .sendPushNotification('device_token', payload, options)
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* .then((response) => {
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* console.log('message send successfully');
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* })
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* .catch((error) => {
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* console.log('error occurred');
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* });
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*/
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sendPushNotification(deviceToken, payload, options) {
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return new Promise((resolve, reject) => {
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this.messaging
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.sendToDevice(deviceToken, payload, options)
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.then((response) => resolve(response))
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.catch((error) => reject(error));
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});
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}
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}
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module.exports = PushNotification;
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