Send to multiple Devices through Telegram Bat and ESP8266

[zipzwan]

Hello, I am trying to make an notification system through ESP8266 and Telegram Bot to multiple User_ID.

I own a solar system and Power Grid is not available allthe time in my country, so I want to connect the ESP8266 to Power Grid line and get notified when it is available.

I managed to get it to work according to tutos and with Telegram Bots, but I would like to add more Telegran User_ID in the code, so can get notification on multiple devices.

This is what I came out as a code :

    A telegram bot that sends you a message when ESP
    starts up

    Parts:
    D1 Mini ESP8266 * - http://s.click.aliexpress.com/e/uzFUnIe
    (or any ESP8266 board)

    https://github.com/sponsors/witnessmenow/

    Written by Brian Lough
    YouTube: https://www.youtube.com/brianlough
    Tindie: https://www.tindie.com/stores/brianlough/
    Twitter: https://twitter.com/witnessmenow
 *******************************************************************/

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

// Wifi network station credentials
#define WIFI_SSID "HOME_WIFI"
#define WIFI_PASSWORD "Itissasecret"
// Telegram BOT Token (Get from Botfather)
#define BOT_TOKEN "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

// Use @myidbot (IDBot) to find out the chat ID of an individual or a group
// Also note that you need to click "start" on a bot before it can
// message you
#define CHAT_ID "5555555555555"

X509List cert(TELEGRAM_CERTIFICATE_ROOT);
WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);

void setup() {
  Serial.begin(115200);
  Serial.println();

 // attempt to connect to Wifi network:
  Serial.print("Connecting to Wifi SSID ");
  Serial.print(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  secured_client.setTrustAnchors(&cert); // Add root certificate for api.telegram.org
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("\nWiFi connected. IP address: ");
  Serial.println(WiFi.localIP());

  Serial.print("Retrieving time: ");
  configTime(0, 0, "pool.ntp.org"); // get UTC time via NTP
  time_t now = time(nullptr);
  while (now < 24 * 3600)
  {
    Serial.print(".");
    delay(100);
    now = time(nullptr);
  }
  Serial.println(now);

  bot.sendMessage(CHAT_ID, "Bot started up", "");
  delay(15000);
  bot.sendMessage(CHAT_ID, "Power Grid is available.", "");
}

void loop() {

}**

Thank you for any help, or some tutos and scripts.