All 7 AWS Serverless Application Model (SAM) questions
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What is AWS SAM and how does it simplify building and deploying serverless applications? What is the SAM CLI, and how does it support local testing of serverless applications before deployment? How does SAM support defining event sources, such as API Gateway or S3 triggers, directly within a function's configuration? How does SAM support safe, gradual Lambda deployments using traffic shifting and automatic rollback? How does SAM support nested applications and reusable components through the AWS Serverless Application Repository? How can SAM templates be organized and parameterized to support deploying the same serverless application consistently across multiple environments like development, staging, and production?
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How does the sam build and sam deploy workflow package and deploy a serverless application to AWS?

Intermediate

Answer

The sam build command compiles your application code and its dependencies into a deployment ready format, resolving anything needed for the target Lambda runtime, and sam deploy then packages those build artifacts, uploads them to S3, and executes a CloudFormation deployment using the transformed SAM template, handling the entire process of getting your local application code running as a live set of AWS resources with just these two straightforward commands.
sam build
sam deploy --guided
Real-world example A team automates their deployment process using sam build followed by sam deploy within their CI/CD pipeline, ensuring every code change that passes tests is automatically packaged and deployed to their AWS environment consistently.

Common follow-ups: What does the --guided flag do during the first sam deploy?;How do build dependencies get resolved differently for different Lambda runtimes?

AWS CodePipeline CodeBuild & CodeDeploy (CI/CD);Lambda & Serverless
All 7 AWS Serverless Application Model (SAM) questions