Issue: [polling_error] Unhandled Exception in Telegram Bot using Node.js

Other Questions Telegram bot
1

I am encountering a problem with my Telegram bot when trying to send a user’s contact information. The console logs the following error message:

error: [polling_error] {}

While the contact information is sent successfully and all other commands function properly, this specific error occurs only during the process of sending the user’s contact. Here is a simplified version of my code:

bot.telegramBot.on("message", (message) => {
  const chatId = message.chat.id; // destructuring
  const senderName = message.from.first_name; // destructuring

  if (message.text.toLowerCase() === "/start") {
    bot.telegramBot.sendMessage(
      chatId,
      `${senderName}, welcome to MyClub Telegram Bot! Please share your phone number to proceed.`,
      {
        reply_markup: {
          keyboard: [[{ text: "Send", request_contact: true }]],
        },
      }
    );
  }
});

I’ve searched online and found that this could be an unhandled error or a potential syntax issue, but I’m unsure about the root cause here. Any assistance would be greatly appreciated! Thank you!

2

If the contacts are being sent successfully and only the error message persists, it’s likely something minor. Here’s a thought: check the version of the node-telegram-bot-api you’re using. Sometimes, upgrading to the latest version can resolve obscure errors as updates often include bug fixes. Also, take a closer look at the bot token and bot configuration. Occasionally, a minor mistyping or misconfiguration can lead to unexpected errors even if everything seems to be working smoothly at first glance.

3

This error could be related to how the polling is being handled for your bot. Polling errors usually occur when there’s a connection disruption or when the bot attempts to process a message that arrives before the previous processing completes. To mitigate this, you might consider switching from polling to a webhook approach, which tends to be more reliable for handling updates and reduces the likelihood of such errors popping up. Also, verify your internet connection to rule out any network-related issues.