telegramSendMediaGroupErrorExample.js

const Telegraf = require('./telegraf')
const { bottoken } = require('./conf.json')
const bot = new Telegraf(bottoken)

const pics = [
    'https://pp.userapi.com/c852032/v852032200/54df2/QYhx-gTOyHM.jpg',
    'https://pp.userapi.com/c852032/v852032200/54e06/XthuKPlyWjY.jpg'
]
const chatId = 'put here chat id'

bot.telegram.sendMediaGroup(chatId, [
    {
        type: 'photo',
        media: {
            url: pics[0]
        }
    },
    { 
        type: 'photo',
        media: {
            url: pics[0]
        }
    }
]).then(res => console.log('pic[0]:'+res)).catch(console.log)

bot.telegram.sendMediaGroup(chatId, [
    {
        type: 'photo',
        media: {
            url: pics[1]
        }
    },
    { 
        type: 'photo',
        media: {
            url: pics[1]
        }
    }
]).then(res => console.log('pic[1]:'+res)).catch(console.log)