Real-Time WebSockets with AWS API Gateway

Modern web applications require instantaneous, two-way communication to keep users engaged and data synchronized. Building these real-time systems from scratch can be complex, but serverless cloud infrastructure simplifies the process. This written course guides you through designing and deploying a reliable real-time messaging architecture using cloud-native tools. You will transition from understanding basic HTTP requests to managing persistent, bidirectional connections that scale automatically. By studying the core mechanics of connection lifecycles, you will gain the confidence to implement real-time features in any modern web application. What you'll learn: - Understand the core differences between traditional HTTP polling and persistent WebSocket connections - Configure AWS API Gateway WebSocket APIs with custom connection, disconnection, and default event routes - Integrate serverless Lambda functions to process incoming WebSocket payloads and manage connection states - Implement structured JSON protocols for robust message routing and error handling - Deploy secure serverless infrastructure using modern infrastructure-as-code principles - Practice testing real-time connection endpoints using standard command-line utilities This course begins with foundational concepts, defining WebSockets, connection states, and serverless routing mechanisms. You will then progress through step-by-step written guides that show you how to configure API routes, write backend handler functions, and manage active client connections. This course is designed for backend developers, cloud enthusiasts, and software engineers who are new to WebSockets and want to learn serverless real-time architecture. No prior cloud-routing experience is required. Start reading today to master the foundations of real-time serverless communication.