Bug Report

I have read:

• Usage information
• Help information

I am using the latest version of the library.

Expected Behavior

After calling stopPolling no listener should be left waiting for polling-related events: if no other event handlers are active, Node's event loop should terminate.

Actual Behavior

A TLSSocket object starts listening on a socket when polling starts. stopPolling doesn't stop it.

This is because HTTPS requests to the Telegram server use the forever agent (src/telegram.js:230), and the agent is not cancelled by stopPolling (which calls this._polling.stop(): src/telegramPolling.js:57)

Steps to reproduce the Behavior

Run the following piece of code:

const TelegramBot = require('node-telegram-bot-api');
const bot = new TelegramBot(TOKEN, {polling:true});
bot.stopPolling();

This program never terminates as the polling request is still active.