I have a topic at AWS SNS which sends messages to an AWS Lambda function. This function may sometimes fail and depending on which attempt is currently running I need to store some information about the failure. After looking for a while I didn't find any way to do that. Is it possible to retrieve which attempt is running?
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I tried to use the delivery status feature and retrieve the attempt number using CloudWatch Events, but apparently SNS always deliver successfully its notifications to Lambda functions.
When a Lambda function fails it retries like explained here and not using delivery polices defined at the SNS topic (because it was delivered successfully).
In this particular case I guess it must be implemented mannually.
Jhonatan Hulse
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