aiogram/docs/dispatcher/class_based_handlers/error.md

ErrorHandler

There is base class for error handlers.

Simple usage:

from aiogram.handlers import ErrorHandler

...

@router.errors_handler()
class MyHandler(ErrorHandler):
    async def handle(self) -> Any:
        log.exception(
            "Cause unexpected exception %s: %s", 
            self.exception_name, 
            self.exception_message
        )

Extension

This base handler is subclass of BaseHandler with some extensions:

• #!python3 self.exception_name is alias for #!python3 self.event.__class__.__name__
• #!python3 self.exception_message is alias for #!python3 str(self.event)

Related pages

• BaseHandler
• Router.errors_handler
• Filters