close web-session on app close

examples/echo_bot.py

@@ -52,6 +52,9 @@ async def main() -> None:
     # And the run events dispatching
     await dp.start_polling(bot)
 
+    # Don't forget to close web-session on your app close
+    await bot.session.close()
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO, stream=sys.stdout)

examples/echo_bot_webhook.py

@@ -71,14 +71,20 @@ async def on_startup(bot: Bot) -> None:
     await bot.set_webhook(f"{BASE_WEBHOOK_URL}{WEBHOOK_PATH}", secret_token=WEBHOOK_SECRET)
 
 
+async def on_shutdown(bot: Bot) -> None:
+    # Gracefully close web-sessions on app shutdown
+    await bot.session.close()
+
+
 def main() -> None:
     # Dispatcher is a root router
     dp = Dispatcher()
     # ... and all other routers should be attached to Dispatcher
     dp.include_router(router)
 
-    # Register startup hook to initialize webhook
+    # Register startup and shutdown hooks
     dp.startup.register(on_startup)
+    dp.shutdown.register(on_shutdown)
 
     # Initialize Bot instance with default bot properties which will be passed to all API calls
     bot = Bot(token=TOKEN, default=DefaultBotProperties(parse_mode=ParseMode.HTML))

examples/echo_bot_webhook_ssl.py

@@ -82,14 +82,20 @@ async def on_startup(bot: Bot) -> None:
     )
 
 
+async def on_shutdown(bot: Bot) -> None:
+    # Gracefully close web-sessions on app shutdown
+    await bot.session.close()
+
+
 def main() -> None:
     # Dispatcher is a root router
     dp = Dispatcher()
     # ... and all other routers should be attached to Dispatcher
     dp.include_router(router)
 
-    # Register startup hook to initialize webhook
+    # Register startup and shutdown hooks
     dp.startup.register(on_startup)
+    dp.shutdown.register(on_shutdown)
 
     # Initialize Bot instance with default bot properties which will be passed to all API calls
     bot = Bot(token=TOKEN, default=DefaultBotProperties(parse_mode=ParseMode.HTML))

examples/error_handling.py

@@ -104,9 +104,13 @@ async def handle_set_name(message: types.Message, command: CommandObject) -> Non
 async def main() -> None:
     # Initialize Bot instance with default bot properties which will be passed to all API calls
     bot = Bot(token=TOKEN, default=DefaultBotProperties(parse_mode=ParseMode.HTML))
+
     # And the run events dispatching
     await dp.start_polling(bot)
 
+    # Don't forget to close web-session on your app close
+    await bot.session.close()
+
 
 if __name__ == "__main__":
     loop = asyncio.new_event_loop()

examples/finite_state_machine.py

@@ -135,6 +135,9 @@ async def main():
     # Start event dispatching
     await dp.start_polling(bot)
 
+    # Don't forget to close web-session on your app close
+    await bot.session.close()
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO, stream=sys.stdout)

examples/multibot.py

@@ -58,6 +58,11 @@ async def on_startup(dispatcher: Dispatcher, bot: Bot):
     await bot.set_webhook(f"{BASE_URL}{MAIN_BOT_PATH}")
 
 
+async def on_shutdown(dispatcher: Dispatcher, bot: Bot) -> None:
+    # Gracefully close web-sessions on app shutdown
+    await bot.session.close()
+
+
 def main():
     logging.basicConfig(level=logging.INFO, stream=sys.stdout)
     session = AiohttpSession()
@@ -70,6 +75,7 @@ def main():
     main_dispatcher = Dispatcher(storage=storage)
     main_dispatcher.include_router(main_router)
     main_dispatcher.startup.register(on_startup)
+    main_dispatcher.shutdown.register(on_shutdown)
 
     multibot_dispatcher = Dispatcher(storage=storage)
     multibot_dispatcher.include_router(form_router)

examples/quiz_scene.py

@@ -292,6 +292,7 @@ async def main():
     dp = create_dispatcher()
     bot = Bot(token=TOKEN)
     await dp.start_polling(bot)
+    await bot.session.close()
 
 
 if __name__ == "__main__":

examples/specify_updates.py

@@ -91,6 +91,9 @@ async def main() -> None:
     # Start event dispatching
     await dp.start_polling(bot)
 
+    # Don't forget to close web-session on your app close
+    await bot.session.close()
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO, stream=sys.stdout)

examples/stars_invoice.py

@@ -58,6 +58,9 @@ async def main() -> None:
 
     await dispatcher.start_polling(bot)
 
+    # Don't forget to close web-session on your app close
+    await bot.session.close()
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO)