2.1. Developing with AWS Lambda & Serverless Applications

At its core, developing with AWS Lambda and serverless applications adheres to the First Principle of abstracting infrastructure management. This empowers developers to focus purely on writing and deploying application code in response to events, achieving unparalleled agility, scalability, and cost-efficiency without managing servers. The fundamental 'why' is to accelerate the development lifecycle and reduce operational overhead.

This section explores the core concepts and practical application of AWS Lambda and its integration with other serverless services like Amazon API Gateway. You'll learn about event-driven programming, configuring Lambda functions, managing APIs, and using AWS Serverless Application Model (SAM) for deployment.

The focus is on comprehending how to build, deploy, and operate serverless applications, which is crucial for the DVA-C02 exam.

Scenario: You need to build a backend API that responds to HTTP requests and processes data without having to provision or manage any servers. The API should scale automatically with demand.

Reflection Question: How does developing with AWS Lambda and Amazon API Gateway fundamentally change your approach to building and deploying applications by abstracting infrastructure management, and what are the key benefits for agility and scalability?