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This tutorial takes a look at triggering functions from Amazon Simple Notification Service (SNS) The code itself will just mimic the behavior of a random complex computation. Using the Dead Letter Queue as a pool for your error logs is a smart use-case. Sending data through a pub/sub service like SNS or a queue like SQS will make sure you have data integrity. All the code from this tutorial is already on GitHub if you want to check out the end result right away.