Exam tips

In this guide, we provide essential tips for the AWS Certified Developer - Associate exam with a focus on AWS SAM (Serverless Application Model). AWS SAM is a toolkit that simplifies building serverless applications on AWS by allowing developers to define resources as code and deploy them using a CLI. This streamlined approach relies on AWS CloudFormation, meaning that SAM templates are eventually transformed into CloudFormation stacks.

Key AWS SAM CLI Commands

AWS SAM CLI offers various commands to simplify the development, building, and deployment of serverless applications:

• sam init: Creates a new SAM project with a predefined directory structure.
• sam build: Compiles your serverless application into a deployment-ready package.
• sam deploy: Deploys your application to AWS. This command handles packaging and processes the CloudFormation transformation.
• sam sync: Updates the Lambda function code deployed on AWS by directly syncing it with your local code, bypassing the CloudFormation process.

Understanding SAM Templates

In your SAM template, the Transform keyword is essential. It signals AWS to treat the template as a SAM template, converting it to CloudFormation code during deployment. Leveraging SAM policy templates further simplifies assigning permissions to Lambda functions based on common usage patterns.

Benefits of Using AWS SAM

Using AWS SAM provides several benefits:

By mastering these concepts and commands, you'll be well-prepared for the serverless components of the AWS Certified Developer - Associate exam. This understanding not only enhances your deployment strategies but also ensures you are leveraging AWS best practices for building scalable serverless applications.