src: Improve default error logging of `polling_error`, `webhook_error`

References:

  * BR: https://github.com/yagop/node-telegram-bot-api/issues/377

CHANGELOG.md

@@ -11,11 +11,15 @@ Added:
    friends e.g. `text`, `audio`, etc.) (#409) (by @jlsjonas, @GochoMugo)
 1. Add support for Node.js v9 (by @GochoMugo)
 1. Document *TelegramBot.errors*, *TelegramBot.messageTypes* (by @GochoMugo)
-1. Fix game example (by @MCSH)
 
 Changed:
 
 1. Update *TelegramBot#answerCallbackQuery()* signature (by @GochoMugo)
+1. Improve default error logging of `polling_error` and `webhook_error`
+
+Fixed:
+
+1. Fix game example (by @MCSH)
 
 
 * * *

src/errors.js

@@ -10,6 +10,12 @@ exports.BaseError = class BaseError extends Error {
     super(`${code}: ${message}`);
     this.code = code;
   }
+  toJSON() {
+    return {
+      code: this.code,
+      message: this.message,
+    };
+  }
 };
 
 

src/telegramPolling.js

@@ -102,7 +102,7 @@ class TelegramBotPolling {
         if (this.bot.listeners('polling_error').length) {
           this.bot.emit('polling_error', err);
         } else {
-          console.error(err); // eslint-disable-line no-console
+          console.error('error: [polling_error] %j', err); // eslint-disable-line no-console
         }
         return null;
       })

src/telegramWebHook.js

@@ -97,7 +97,7 @@ class TelegramBotWebHook {
    */
   _error(error) {
     if (!this.bot.listeners('webhook_error').length) {
-      return console.error(error); // eslint-disable-line no-console
+      return console.error('error: [webhook_error] %j', error); // eslint-disable-line no-console
     }
     return this.bot.emit('webhook_error', error);
   }