From 7e4cadb514346f1fc7262fb445363b9ab9beeec2 Mon Sep 17 00:00:00 2001
From: GochoMugo <mugo@forfuture.co.ke>
Date: Wed, 8 Feb 2017 11:44:42 +0300
Subject: [PATCH] src/polling: Fix bug #281

Bug:

  On certain errors, during polling, cause the following error to be
  thrown:

    TypeError: Cannot read property 'statusCode' of undefined

  This is caused when we try to access the 'response' property on
  the error object in the error handler (`catch(error)`). It goes
  missing when the error was fatal, for example, network error, thus
  no server response available.

References:

  * Issue #281:  https://github.com/yagop/node-telegram-bot-api/issues/281
  * Reported-by: @dimawebmaker
---
 src/telegramPolling.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/telegramPolling.js b/src/telegramPolling.js
index 365c168..6943ceb 100644
--- a/src/telegramPolling.js
+++ b/src/telegramPolling.js
@@ -146,7 +146,7 @@ class TelegramBotPolling {
 
     return this.request('getUpdates', opts)
       .catch(err => {
-        if (err.response.statusCode === ANOTHER_WEB_HOOK_USED) {
+        if (err.response && err.response.statusCode === ANOTHER_WEB_HOOK_USED) {
           return this._unsetWebHook();
         }
         throw err;