Understanding Serverless Application Model Using Analogy

Consider SAM a “blueprint” or “recipe” for developing serverless apps. SAM offers a common method for defining and deploying serverless resources in AWS, much like a recipe for cooking food. SAM offers an organized way to design the architecture and configuration of serverless applications on AWS, much like a blueprint guides building construction. SAM helps assure consistency and repeatability in deploying and administering serverless applications, just as a recipe or blueprint helps ensure consistency and reproducibility in the end product.
 

Assume you are developing a complicated web application that calls for numerous API Gateways, Amazon Lambda functions, and serverless resources. These resources require deployment, configuration, scale management, security, and performance optimizations. When using unprocessed CloudFormation templates, this can easily become time-consuming and overwhelming. The AWS Serverless Application Model (SAM), a strong framework that streamlines the process of creating, deploying, and managing serverless apps on AWS, steps in at this point.
 

Let’s imagine, for example, that you are developing a serverless application with several Lambda functions, an API Gateway, and an S3 bucket for file storage. With SAM, all of these resources can be defined in a single SAM template with a simple syntax to comprehend and administer. Each Lambda function’s runtime, memory, and other configurations, the endpoints and authentication for the API Gateway, and the bucket policies for the S3 bucket can all be defined in one location. Thanks to SAM’s integrated features for local testing, debugging, and deployment, your serverless applications may be developed and iterated upon with efficiency and convenience.