When developing Lambda functions, you may need to verify the behavior of your code in a test environment before deploying it to production. For example, your Lambda function needs to send a email to your client, but you don’t want to disturb your client while still developing the code. In this post, we’ll explore how to use the AWS Serverless Application Model (SAM) and samconfig.toml to manage different environments for your Lambda functions.

AWS Lambda, a serverless computing service provided by AWS, executes code in response to events and automatically manages the compute resources required by that code. AWS SAM (Serverless Application Model) is an open-source framework for building serverless applications and provides a simplified way of defining the AWS services needed by your serverless application. This post explores configuring AWS Lambda deployment using an AWS SAM configuration file