Learn AWS-LAMBDA with Real Code Examples

Create an AWS account

Install AWS CLI and configure credentials

Install AWS SAM CLI or Serverless Framework for deployments

Write function code in supported language

Deploy via AWS Console, CLI, SAM, or Serverless Framework

Install AWS CLI

Configure AWS credentials

Install AWS SAM CLI or Serverless Framework

Write function code and configure triggers

Deploy using CLI or CI/CD pipelines

template.yaml - SAM configuration

package.json / requirements.txt - dependencies

src/ - function code

tests/ - unit/integration tests

deployment scripts for CI/CD pipelines

aws lambda create-function -> deploy function

aws lambda invoke -> test invocation

aws lambda update-function-code -> redeploy

aws lambda add-permission -> configure access

aws logs tail -> view logs

Supports UTF-8 payloads

Localized responses handled in code

AWS regions allow deployment closer to users

Integration with translation services possible

Flexible for multi-language applications

Accessible via AWS API Gateway or event triggers

Supports CORS for HTTP APIs

Available in AWS regions chosen by developer

IAM roles and policies control access

CLI, SDK, and console access for developers

Not handled directly - backend serverless

Return JSON, HTML, or binary responses

Integrate with frontend frameworks via API Gateway

Serve dynamic content without server management

Optional integration with S3/CloudFront for static hosting

Stateless by default

Persistent state via S3, DynamoDB, RDS, or ElastiCache

Secrets managed via AWS Secrets Manager

Temporary execution environment available in memory

No long-lived server state

Process JSON, XML, binary payloads

Integrate with AWS storage, databases, and queues

Log execution via CloudWatch

React to event-driven workflows

Transform or route data as needed