Title

AWS re:Invent 2022 - Building real-world serverless applications with AWS SAM (SVS303)

Summary

Eric Johnson, Principal Developer Advocate for Serverless at AWS, presented on AWS SAM (Serverless Application Model).
The session covered an introduction to SAM, its components, and real-world application development using SAM.
SAM consists of transform templates (infrastructure as code) and the SAM CLI, which is built specifically for serverless development.
SAM is built on top of CloudFormation and can use any CloudFormation resources.
SAM Local allows for local testing of serverless applications using commands like sam local start-api, sam local invoke, and sam local generate-event.
SAM Accelerate speeds up the development cycle by enabling quick syncing of code to the cloud without full deployment.
SAM Logs aggregates logs from various services for easier debugging.
SAM Pipelines automate deployment across different environments.
New features include OIDC authorizer support, nested stack support, ESBuild for Node and TypeScript, Terraform support for local testing, and SAM connectors for easier IAM management.
Eric shared his personal development cycle and best practices, including starting with patterns, using the SAM config.toml file, avoiding hard-coded resource names, managing step functions with Workflow Studio, and always using sam delete for cleanup.
Additional resources were provided for deeper learning on SAM and serverless development.

SAM is a powerful tool for building serverless applications, providing both infrastructure as code and a CLI designed for serverless.
Local testing is a critical part of serverless development, and SAM Local provides a suite of tools to facilitate this.
SAM Accelerate and SAM Sync are designed to improve the developer experience by reducing the time between code changes and testing in a cloud environment.
SAM Pipelines provide a guided approach to setting up CI/CD, which is essential for production-grade serverless applications.
The introduction of SAM connectors indicates AWS's commitment to simplifying IAM role management, which is traditionally complex.
Eric Johnson's personal development cycle and best practices offer practical insights into efficient serverless application development using SAM.
The session highlighted the importance of automation and the use of SAM's features to streamline the serverless development lifecycle.