• Requirements
• How to handle updates in several handlers
• Type Handler and Groups
• Boilerplate Code
• But I do not want a handler to stop other handlers
• How do I limit who can use my bot?
• How do I rate limit users of my bot?
• Conclusion
• How do I enforce users joining a specific channel before using my bot?
• How do I send a message to all users of the bot?
• How do I deal with a media group?
• Timer based approach
• Manual approach