Kill Bugs Between Services you own this product

prerequisites
intermediate JUnit5 • intermediate Spring • beginner Maven • working knowledge of Java 11 • working knowledge of object-oriented programming
skills learned
use IntelliJ IDEA to write and execute tests • reproduce “ghost in the machine”-type problems with integration tests • use tests to drive bug fixes • create in-memory Spring applications • use Hibernate and an in-memory database to inspect the results of service execution
Max Guernsey, III
1 week · 8-10 hours per week · INTERMEDIATE
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Look inside

You’re a Java developer for a large company that sells stock photography. You’re responsible for the service that ingests images, and this service depends on another subservice: the pricing microservice. As proven by their individual unit tests, each service works as specified. But when the services are combined, new customers are being locked into one pricing table—even those that should have access to pricing that fluctuates depending on factors like promotions, flash sales, and price-tuning. Working in IntelliJ IDEA, you’ll solve this problem by writing an integration test that connects and runs the two services together, allowing you to reproduce the problem locally.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Max Guernsey, III

Max Guernsey has over twenty years of experience in software development and is currently a managing member at DevCraft LLC. He has worked on a wide range of products and technologies, including C++ class libraries, financial analysis applications, C# and Java backends, and even multi-platform video games. He is an experienced consultant and his "coaching from the keyboard" approach provides hands-on experience to learners in all aspects of modern software development.

prerequisites

This liveProject is for developers with an intermediate-level understanding of Java and object-oriented design. To begin these liveProjects you’ll need to be familiar with the following:

TOOLS
  • JUnit5
  • Spring
  • Maven
TECHNIQUES
  • Working knowledge of Java 11
  • Working knowledge of object-oriented programming

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