Idempo-what? You may have heard of it, but you may not understand it as much as you should! Idempotency is the key to rerunning functions or reprocessing messages safely, something that is necessary in today's serverless applications.

Come learn what idempotency has to do with good architecture, the difference between idempotent and non-idempotent retries, and discover some tools that help you implement idempotency in your own applications. You’ll leave this talk with a deeper understanding and appreciation for this tongue-twisting principle and start combing through your code with an idempotent eye.