How to retrieve group chat ID for Telegram bot messaging?

I’m working with a Telegram bot and need to find the group chat ID so I can send messages to a specific group. I know how to get regular chat IDs when users message the bot directly, but I’m struggling with group chats.

When someone sends a private message to my bot, I can easily access the chat ID from the message object. However, for group chats, I’m not sure what approach to take. I want to be able to send automated notifications to a group, but first I need to identify the correct group ID.

What’s the proper way to obtain a group chat identifier? Are there specific methods or properties I should be looking for when the bot receives messages in a group setting?

Another approach is to enable bot logging and monitor the chat object whenever your bot receives any interaction from the group. When users interact with your bot in the group (even just mentioning it), the message payload contains the chat information including the ID. I’ve found it helpful to create a simple endpoint that captures and displays these IDs during testing. You can also use the Telegram Bot API’s webhook feature to automatically log incoming messages. Keep in mind that group chat IDs are typically large negative numbers, which distinguishes them from individual user chats. Once you have the ID, store it securely since you’ll need it for sending those automated notifications you mentioned.

To obtain the group chat ID, first, add your bot to the specific group. Once added, send a message in that group and use the getUpdates method to retrieve messages. The response will include the chat object where you’ll find the desired group ID. Alternatively, if the group has a public username, the getChat method can work, although private groups are best accessed via getUpdates. During development, I recommend logging messages to help track the chat IDs; note that group IDs are usually negative, in contrast to positive user chat IDs.

easiest way imo is just forward any message from the group to @userinfobot - it will show you the chat id instantly without any coding. or you can temporarly add some debug code that prints chat.id whenever bot recieves messages in the group