Can a Telegram Bot detect when a user opens the chat?

Hey everyone! I’m working on a Telegram bot and I’m wondering if there’s a way for the bot to know when a user opens the chat window. Here’s what I’m trying to do:

  1. The user has already added my bot and started a conversation
  2. Later, they open the chat with the bot
  3. I want the bot to notice this and react
  4. The bot should greet the user with a message like “Hi there! Need any help?”

Is this possible? Does Telegram’s Bot API have any kind of event or trigger for step 3? I’ve looked through the docs but couldn’t find anything clear. It would be really cool if the bot could be proactive like this!

If anyone has experience with this or knows a workaround, I’d really appreciate your input. Thanks in advance!

I’ve encountered this limitation in Telegram bot development as well. Unfortunately, there’s no built-in functionality to detect when a user opens a chat. The bot can only respond to explicit user actions or messages.

One alternative approach I’ve found effective is implementing a ‘welcome back’ feature. You could store the timestamp of the user’s last interaction with the bot. Then, when they send a message after a significant time gap (say, 24 hours), the bot can respond with a greeting like ‘Welcome back! How can I assist you today?’

This method isn’t perfect, but it creates a sense of responsiveness and engagement without relying on detecting chat openings. It’s a good compromise given Telegram’s API constraints.

Remember to handle this carefully to avoid being overly intrusive or annoying to users who prefer less frequent interactions.

As someone who’s developed a few Telegram bots, I can tell you that unfortunately, there’s no direct way for a bot to detect when a user opens the chat. Telegram’s API doesn’t provide this kind of event or trigger.

However, I’ve found a workaround that might help. You could implement a ‘pseudo-activity’ detection by using inline keyboards or custom commands. For example, you could send a message with an inline button like ‘Check for updates’ or a custom command like /status. When the user interacts with these, your bot can respond with a greeting or helpful message.

Another approach I’ve used is to send periodic messages to active users, prompting them to engage if they need assistance. This isn’t exactly what you’re looking for, but it can create a similar effect of proactive engagement.

Remember, these methods require some user action, so they’re not perfect solutions. But they’re the closest I’ve found to achieving what you’re after within Telegram’s current limitations.

nah, sry mate. telegram doesn’t let bots know when users open chats. but you could try something like sending a daily msg asking if they need help. might annoy some folks tho. or maybe add a button they can press for help? not perfect but better than nothing