const TOKEN = process.env.TELEGRAM_TOKEN || 'YOUR_TELEGRAM_BOT_TOKEN';

import { GroupCaptcha } from 'telegram-captcha';

const captcha = new GroupCaptcha(TOKEN, {polling: true}, {
    size: 6,
    language: 'de',
    time_for_enter: 3
});

captcha.bot.on("new_chat_members", (msg) => captcha.generateCaptcha(msg));
captcha.bot.on("callback_query", (query) => captcha.clickKeyboard(query));

const TOKEN = process.env.TELEGRAM_TOKEN || 'YOUR_TELEGRAM_BOT_TOKEN';

import { GroupCaptchaRTJ } from 'telegram-captcha';

const captcha = new GroupCaptchaRTJ(TOKEN, {polling: true}, {
    size: 5,
    language: 'es',
    time_for_enter: 7
});

captcha.bot.on("chat_join_request", (cjr) => captcha.generateCaptcha(cjr));
captcha.bot.on("callback_query", (query) => captcha.clickKeyboard(query));

{
    size: 4,                     //Captcha length < 9 (number of characters)
    language: 'en',              //Language (en/es/de/es/fr/it)
    time_for_enter: 5            //Time for enter captcha (in minutes)
}