Web Services Performance Testing: LoadRunner for SOAP and REST APIs

In today's interconnected digital landscape, web services form the backbone of modern applications, making API performance critical to overall system stability. Ensuring these APIs can handle high traffic requires robust, specialized performance testing rather than simple functional checks. This course guides you from the fundamental principles of web services to writing advanced performance testing scripts using LoadRunner VuGen. You will transition from basic manual testing concepts to writing custom scripts, handling complex data correlations, and validating API responses under simulated loads. What you'll learn: - Understand the core differences between SOAP and RESTful web services in performance testing scenarios - Create and configure robust API test scripts using LoadRunner Virtual User Generator (VuGen) - Apply correlation and parameterization techniques to handle dynamic data and session tokens - Implement custom C and LoadRunner functions to enhance script flexibility and error handling - Handle modern API authentication mechanisms, including token-based authentication like JWT - Analyze performance metrics and test execution results to identify API latency and bottlenecks The course begins with foundational concepts of web service architectures and API protocols before progressing to step-by-step scripting, advanced function integration, and troubleshooting real-world testing scenarios. Written explanations and practical code examples walk you through each concept systematically. This course is designed for QA engineers, software testers, and developers who want to learn API performance testing from the ground up. No prior LoadRunner scripting experience is required. Start building reliable, high-performing web services by mastering LoadRunner today.