5 Telegram Bot Patterns Every Python Developer Should Know After building 50+ bots, these patterns solve 90% of problems. 1. FSM for Multi-Step Flows from aiogram.fsm.state import State , StatesGroup class OrderFlow ( StatesGroup ): product = State () quantity = State () address = State () @dp.message ( Command ( ' order ' )) async def start_order ( message : Message , state : FSMContext ): ...