add user_hello dialog

app/bot.py

@@ -0,0 +1,24 @@
+import asyncio
+
+from aiogram import Bot, Dispatcher
+from aiogram_dialog import setup_dialogs
+from bestconfig import Config
+
+from app.dialogs import dialogs_router
+from app.handlers import handlers_router
+
+cfg = Config()
+
+bot = Bot(token=cfg.get("bot_token"))
+dp = Dispatcher()
+
+
+async def main():
+    dp.include_router(handlers_router)
+    dp.include_router(dialogs_router)
+    setup_dialogs(dp)
+    await dp.start_polling(bot)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

app/dialogs/__init__.py

@@ -0,0 +1,6 @@
+from aiogram import Router
+
+from .user_dialog import router as user_router
+
+dialogs_router = Router(name="dialogs")
+dialogs_router.include_router(user_router)

app/dialogs/user_dialog.py

@@ -0,0 +1,22 @@
+from aiogram import Router
+from aiogram.fsm.state import State, StatesGroup
+from aiogram_dialog import Dialog, DialogManager, StartMode, Window
+from aiogram_dialog.widgets.text import Format
+
+from app.utils.getters import username_getter
+
+
+class StartSG(StatesGroup):
+    start = State()
+
+
+start_dialog = Dialog(
+    Window(
+        Format("Hello, {username}"),
+        getter=username_getter,
+        state=StartSG.start
+    )
+)
+
+router = Router(name="user_dialogs")
+router.include_router(start_dialog)

app/handlers/__init__.py

@@ -0,0 +1,6 @@
+from aiogram import Router
+
+from .user_handlers import router as user_router
+
+handlers_router = Router(name="handlers")
+handlers_router.include_router(user_router)

app/handlers/user_handlers.py

@@ -0,0 +1,12 @@
+from aiogram import Router
+from aiogram.filters import CommandStart
+from aiogram.types import Message
+from aiogram_dialog import DialogManager
+
+from app.dialogs.user_dialog import StartSG
+
+router = Router(name="user_handlers")
+
+@router.message(CommandStart())
+async def command_start_process(message: Message, dialog_manager: DialogManager):
+    await dialog_manager.start(state=StartSG.start)

app/utils/getters.py

@@ -0,0 +1,8 @@
+from aiogram.types import User
+from aiogram_dialog import DialogManager
+
+
+async def username_getter(
+    dialog_manager: DialogManager, event_from_user: User, **kwargs
+):
+    return {"username": event_from_user.username}