synt_backend/helpers/push-notifications.js

Synt light-weight node backend service

import PushNotifications from "node-pushnotifications";
const resolve = require("path").resolve;
import "dotenv/config";

class Pusher {
  constructor() {
    const settings = {
      gcm: {
        id: process.env.FCM_TOKEN,
        phonegap: false, // phonegap compatibility mode, see below (defaults to false)
      },
      apn: {
        token: {
          key: resolve("./certs/AuthKey_93GTRWHFPQ.p8"), // process.env.APN_TOKEN // optionally: fs.readFileSync('./certs/AuthKey_93GTRWHFPQ.p8')
          keyId: process.env.APN_KEY_ID,
          teamId: process.env.APN_TEAM_ID,
        },
        production: true, // true for APN production environment, false for APN sandbox environment,
      },
    };

    this.registered_ids = [];

    this.service = new PushNotifications(settings);

    return this;
  }

  registerIds(ids) {
    if (typeof ids === "string") {
      this.registered_ids.push(ids);
    } else if (typeof ids === "object") {
      for (const id of ids) {
        this.registered_ids.push(id);
      }
    }
  }

  sendNotification(title, body, path = "", VMEId = null, priority = "high") {
    const data = {
      title, // REQUIRED for Android
      topic: "com.synt.app", // REQUIRED for iOS (apn and gcm)
      /* The topic of the notification. When using token-based authentication, specify the bundle ID of the app.
       * When using certificate-based authentication, the topic is usually your app's bundle ID.
       * More details can be found under https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/sending_notification_requests_to_apns
       */
      body,
      custom: {
        sender: "Synt API",
        path,
        VMEId,
      },
      priority, // gcm, apn. Supported values are 'high' or 'normal' (gcm). Will be translated to 10 and 5 for apn. Defaults to 'high'
      collapseKey: "", // gcm for android, used as collapseId in apn
      contentAvailable: true, // gcm, apn. node-apn will translate true to 1 as required by apn.
      delayWhileIdle: true, // gcm for android
      restrictedPackageName: "", // gcm for android
      dryRun: false, // gcm for android
      icon: "", // gcm for android
      image: "", // gcm for android
      style: "", // gcm for android
      picture: "", // gcm for android
      tag: "", // gcm for android
      color: "", // gcm for android
      clickAction: "", // gcm for android. In ios, category will be used if not supplied
      locKey: "", // gcm, apn
      titleLocKey: "", // gcm, apn
      locArgs: undefined, // gcm, apn. Expected format: Stringified Array
      titleLocArgs: undefined, // gcm, apn. Expected format: Stringified Array
      retries: 1, // gcm, apn
      encoding: "", // apn
      badge: 2, // gcm for ios, apn
      sound: "ping.aiff", // gcm, apn
      android_channel_id: "", // gcm - Android Channel ID
      notificationCount: 0, // fcm for android. badge can be used for both fcm and apn
      silent: false, // gcm, apn, will override badge, sound, alert and priority if set to true on iOS, will omit `notification` property and send as data-only on Android/GCM
      /*
       * A string is also accepted as a payload for alert
       * Your notification won't appear on ios if alert is empty object
       * If alert is an empty string the regular 'title' and 'body' will show in Notification
       */
      // alert: '',
      launchImage: "", // apn and gcm for ios
      action: "", // apn and gcm for ios
      category: "", // apn and gcm for ios
      // mdm: '', // apn and gcm for ios. Use this to send Mobile Device Management commands.
      // https://developer.apple.com/library/content/documentation/Miscellaneous/Reference/MobileDeviceManagementProtocolRef/3-MDM_Protocol/MDM_Protocol.html
      urlArgs: "", // apn and gcm for ios
      truncateAtWordEnd: true, // apn and gcm for ios
      mutableContent: 0, // apn
      threadId: "", // apn
      pushType: undefined, // apn. valid values are 'alert' and 'background' (https://github.com/parse-community/node-apn/blob/master/doc/notification.markdown#notificationpushtype)
      expiry: Math.floor(Date.now() / 1000) + 28 * 86400, // unit is seconds. if both expiry and timeToLive are given, expiry will take precedence
      timeToLive: 28 * 86400,
      headers: [], // wns
      launch: "", // wns
      duration: "", // wns
      consolidationKey: "my notification", // ADM
    };

    // send notification as a promise
    for (const id of this.registered_ids) {
      if (id) {
        this.service
          .send(id, data)
          .then((results) => console.log(JSON.stringify(results)))
          .catch((err) => console.log(err));
      }
    }
  }
}

module.exports.createPushService = function (ids = null) {
  let pusher = new Pusher();
  if (ids) {
    pusher.registerIds(ids);
  }
  return pusher;
};