1. Introduction to AWS Lambda
AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. It executes your code in response to events and automatically manages the underlying compute resources for you. You only pay for the compute time you consume.
1.1. What is Serverless Computing?
Serverless doesn't mean no servers; it means you don't have to worry about managing servers. AWS Lambda automatically scales and manages the infrastructure.
1.2. Key Benefits of AWS Lambda
- No Server Management: AWS automatically handles infrastructure provisioning, patching, maintenance, and backups.
- Automatic Scaling: Scales automatically with your workload, handling spikes in traffic without manual intervention.
- Cost-Efficient: You only pay for the compute time your code consumes (billed in milliseconds), so there's no cost for idle time.
- Event-Driven: Can respond directly to events from various AWS services like Amazon S3, DynamoDB, and API Gateway.