In this recipe, we entered our code directly into the Lambda console. While this is OK for learning exercises, for production code, you should investigate the Serverless Application Model (SAM), and AWS CodeCommit. SAM provides a simplified template syntax for creating applications that are based on lambda functions, and CodeCommit is a Git-compatible distributed version control system. It's best practice to always store your code in version control, so that you can easily compare revisions, and share code with your peers.