Learn AWS-LAMBDA with Real Code Examples

Serverless backend for SaaS applications

Event-driven APIs for enterprise apps

Automated ETL pipelines for analytics

Serverless workflows for businesses

Microservice orchestration at scale

Better multi-region deployment

Improved cold-start optimization

Enhanced observability and monitoring

More runtime and language support

Expanded integration with AWS ecosystem

Workloads needing >15 minutes execution per request

Extremely low-latency edge processing outside AWS regions

Heavy stateful applications without AWS-managed storage

Applications with very high concurrency spikes beyond account limits

Projects needing fine-grained infrastructure control

AWS Lambda is a fully managed serverless platform.

Executes code in response to AWS events or HTTP requests.

Supports multiple languages and Lambda Layers for dependencies.

Automatic scaling and pay-per-use billing.

Ideal for serverless APIs, ETL pipelines, microservices, and event-driven architectures.

Is AWS Lambda free?

Yes - free tier available, paid beyond free limits.

Does it support multiple languages?

Yes - Node.js, Python, Java, Go, Ruby, .NET, and custom runtimes.

Can Lambda run globally?

No - functions run in selected AWS regions.

Do Lambdas scale automatically?

Yes - AWS manages scaling based on incoming requests.

Can Lambda maintain state?

No - stateless by default; use DynamoDB, S3, or other AWS services for persistence.