Serverless API Idempotency with AWS Lambda Powertools and CDK

<p>It happened to all of us. You order a shiny new tech gadget or a pair of new jeans online.</p> <p>The order takes its time and then fails due to momentary network failure. So you submit it again, and the order goes through this time; success!</p> <p>However, two weeks later, you realize your credit card was charged twice by mistake.</p> <p>Why did it happen?</p> <p>It happened because the shop&rsquo;s orders API did not implement API idempotency correctly.</p> <p>And that&rsquo;s the subject of today&rsquo;s post.</p> <p><strong>In this post, you will learn about serverless API idempotency, why it&rsquo;s essential, and how to implement it in a sample serverless &ldquo;orders&rdquo; service with AWS Lambda functions, AWS CDK, and AWS Lambda Powertools for Python. We will also write an end-to-end test to validate that API idempotency works as expected.</strong></p> <p><a href="https://isenberg-ran.medium.com/serverless-api-idempotency-with-aws-lambda-powertools-and-cdk-75c44bac054e"><strong>Read More</strong></a></p>
Tags: serverless API