create telegram notification by channels and supergroups

index.js

const { Api,TelegramClient } = require("telegram");
const { StringSession, StoreSession} = require("telegram/sessions");
const input = require("input"); 
const { NewMessage } = require('telegram/events')
const util = require('util')
const apiId = 0;
const apiHash = "0";
const stringSession = new StoreSession("telegram_session");

(async () => {
    console.log("Loading interactive example...");
    const client = new TelegramClient(stringSession, apiId, apiHash, {
        connectionRetries: 5,
    });
    await client.start({
        phoneNumber: async () => "+9",
        password: async () => await input.text("Please enter your password: "),
        phoneCode: async () =>
            await input.text("Please enter the code you received: "),
        onError: (err) => console.log(err),
    });
    console.log("You should now be connected.");
    client.session.save()
   
    async function eventPrint(event) {
        const message = event.message;
        const chat = await message.getChat()
        const user = await message.getSender()

        console.log(`${chat.title}: (${user.firstName} ${user.lastName}) ${message.text}`)

    }
    const dialogs = await client.getDialogs();
    dialogList = []
    dialogs.forEach(
        dialog=>{
            if(dialog.isChannel || dialog.isGroup || dialog.isUser){
                dialogList.push(dialog.id)
            }
        }
    )
    client.addEventHandler(eventPrint, new NewMessage({chats: dialogList}));


})();