Amazon Web Services API Gateway focuses on building, managing, and securing APIs for modern cloud-native and serverless applications. It enables organizations to expose backend services as scalable RESTful and HTTP APIs with built-in authentication, throttling, and monitoring capabilities. This training explains core API Gateway concepts such as API creation, routing, stages, deployments, request/response transformation, and integration with backend services. It also covers security mechanisms including IAM authorization, API keys, and OAuth integration. You will learn how enterprises use API Gateway with AWS Lambda and microservices architectures to build scalable, reliable, and secure applications. The course also highlights best practices for designing high-performance and production-ready API management solutions.