Version 5.0.0 of the @middy/core package no longer supports Common JS in favor of ECMAScript Modules (ESM). ESM improves performance by 2X as mentioned in this post. Seeing this change prompted me to investigate what needs to be updated to get Lambda functions to be ESM to not fall behind on my dependency versions. In this post, we’ll go through the 3 steps needed to go from Common JS to ESM.

As you start setting patterns and best practices within your projects at some point you will want to share these to simplify the lives of other developers.
SAM allows you to initialize projects by using the init command and selecting a template for your project. SAM has built-in templates to generate simple Hello-World starter projects (you can find the list of templates here). These will help you get started and get familiar with how to structure your serverless applications but as your…

A common way people build serverless APIs is by routing an API Gateway request to an AWS Lambda. This will make another request to a different AWS Service. It often goes unnoticed that API Gateway can integrate with other AWS Services without the need of Lambda.