How to send different payloads per platform with node-gcm

how-to-send-payload-per-platform.ts

import { IResponseBody as FcmResponse, Message as FcmMessage, Sender as FcmSender } from 'node-gcm';

class FcmMessage2 extends Message {
  private apns: Record<string, unknown>;
  private android: Record<string, unknown>;
  addApnsData(data: Record<string, unknown>): void {
    this.apns = data;
  }
  addAndroidData(data: Record<string, unknown>): void {
    this.android = data;
  }
  toJson(): string {
    const json = (FcmMessage.prototype as any).toJson.call(this);
    if (this.apns) json['apns'] = this.apns;
    if (this.android) json['android'] = this.android;

    return json;
  }
    
// [1] for iOS devices we want visible notifications, for Android devices we want 'data message' notifications
    
const message = new FcmMessage2({
  priority: 'normal', // vs 'high'
  collapseKey: options.collapseKey,
  contentAvailable: !silent,
  data,
 });

 message.addApnsData({ notification, 'apns-push-type': silent ? 'background' : 'alert' });

// fcmSender = new Sender(FcmKey, FcmRequestOptions);
// fcmSender.send(message, { registrationTokens }, (err, response: FcmResponse)