WebSockets Performance Testing with Gatling

Real-time applications like chat platforms, live financial feeds, and collaborative tools require persistent, two-way connections to function. Traditional HTTP testing approaches fall short when measuring the performance and stability of these WebSocket-based systems. This text-only course teaches you how to design, write, and execute load tests for WebSockets using Gatling. You will gain the skills to transition from basic protocol concepts to writing robust, asynchronous simulation scripts that mimic real-world user behavior. What you'll learn: Learn the foundational concepts of WebSockets and how they differ from traditional HTTP; Configure stable WebSocket connections and manage connection lifecycles within Gatling; Send and receive real-time messages using Gatling's native DSL; Validate server responses and track round-trip times for critical interactions; Implement modern simulation patterns, including session state management and structured code architecture. The course starts with key terminology, basic concepts, and foundational definitions before moving into step-by-step written guides on scripting, message handling, and validation. This course is designed for software testers, QA engineers, and developers who are new to performance testing WebSockets. No prior experience with Gatling is required. Start reading today to master real-time performance testing.