These days it seems to be obvious for us to keep the configuration separately from code, but sometimes having properties/yml files with our codebase is not enough. During this presentation I will focus on configuration issues in microservice environment. Don’t worry - there won’t be too much slides - I will do some live-coding and show you how can we improve configuration management with Spring Cloud and Apache Kafka, and how easy it is to reconfigure our application live without rebuilding or rebooting it.

In this live coding session, we will refactor a part of some legacy system. We will approach the problem pragmatically, identifying issues and fixing them by applying rules and patterns related to modularity, cohesion, testability, and more. We will also see how Domain Driven Design can help us achieve the goal of clean and solid code.

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In this presentation I will share with you my story about Business Process Management, showing you the possibilities of bringing BPM and microservices together. We will look at this topic from perspectives of business, architecture, development and tools. We will try to answer most frequent questions and doubts, including security, traceability, transaction handling, delivery, etc. You will also see how to implement proposed solutions with Spring goodies and Apache Kafka.

How does concurrency control impact API? During a live coding session, Bartlomiej Slota will model and implement REST API fully supporting optimistic locking mechanism according to art. You will see what request and response headers should be used, and what response code should be returned in which situation. Find out how Spring Framework supports such implementation, and what you need to take care of on your own.