Testing and Driving the Web Layer in Java Microservices

Building resilient microservices requires a deep understanding of how to construct and test your web layer. This text-based guide teaches you how to design robust HTTP endpoints and verify their behavior reliably. You will transition from writing basic Java code to designing, driving, and testing production-ready web endpoints, gaining confidence in managing HTTP requests, handling dependency injection, and mocking external services. What you'll learn: - Understand the foundational concepts of the web layer and HTTP communication in microservices. - Build clean HTTP endpoints using modern Java frameworks and dependency injection principles. - Implement robust request-response flows using modern Java features like Records for data transfer. - Test web layer endpoints effectively using JUnit and mock-based testing frameworks. - Drive integration testing by leveraging the native Java HTTP Client for end-to-end verification. - Handle common web concerns including error responses, status codes, and JSON serialization. The course begins with core terminology and architectural definitions before guiding you through structured code explanations. You will read through practical examples of endpoint configuration, dependency wiring, and test suite setup. This course is designed for beginner to intermediate Java developers looking to strengthen their web development and testing skills, with no prior microservices experience required. Start reading today to master web layer testing and build more reliable Java microservices.