Handler for Account Linking about alexa-skills-kit-sdk-for-python HOT 3 CLOSED

Ohhh nice! I did not notice I was using AbstractExceptionHandler.
I instead use the class CatchAccountLinkingErrorHandler(AbstractRequestHandler): as the easier implementation.

Again, thank you!

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Glad it worked :-) !!

from alexa-skills-kit-sdk-for-python.

Hey @cnpants , your CatchAccountLinkingErrorHandler should be an implementation of AbstractRequestHandler class, considering you want to handle the input alexa request and respond with a custom message (similar to any of the request handler use cases). Just change the parent class of CatchAccountLinkingErrorHandler to

class CatchAccountLinkingErrorHandler(AbstractRequestHandler):

and register the request handler before any of the intent handlers, so that the SDK will respond before it checks other intents. (ref)

The exception handler will make sense in cases when you are not using checkAccessToken method in code but directly assuming there is an account token and using it. Considering there won't be an 'access_token' attribute in user if there is no account linking, you can have an exception handler like

class CatchAccountLinkingErrorHandler(AbstractExceptionHandler):
	def can_handle(self, handler_input, exception):
                # type: (HandlerInput, Exception) -> Response
                
                # considering there will be an attribute error for no access_token 
                # attribute found, when using
                # handler_input.request_envelope.session.user.access_token
		return type(exception).__name__ == 'AttributeError'

	def handle(self, handler_input, exception):
		# type: (HandlerInput, Exception) -> Response
		logger.info("In CatchAccountLinkingErrorHandler")
		
		handler_input.response_builder.speak("Your account is not linked.")

		return handler_input.response_builder.response

that catches such errors and responds back with a seamless message to the user. But be careful of the conditions being checked in the can_handle function. The above class would catch all attribute errors in your code, regardless of where it occurred hence gobbling up some other errors. So, add more conditions to the can_handle function accordingly.

I am not sure what error response your CatchAllExceptionHandler threw when you tried sb.add_exception_handler(CatchAccountLinkingErrorHandler()), but in case you want to use the class as ExceptionHandler, you need to register it before the CatchAllExceptionHandler so that specific exceptions are processed before generic exceptions. (ref)

Let us know if this helps. As for the stack overflow tag, I will check with the team on their inputs and update the repo if we plan to adding that.

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