A web API is a channel into your business domain. Because of its simplicity, REST is the de facto standard for developing web APIs, but translating complex domain behavior to simple REST concepts is typically not straightforward. Tom Hofte and Marco van der Linden explore RESTful resource modeling and share practical solutions to bridge the gap between a domain model and a RESTful API.

Vladik Khononov shares his experience using the domain-driven design methodology at Plexop, a large-scale marketing system that spans over a dozen of different business domains, from the management of advertising spaces to sales agents commissions.

Chris Richardson explains why events are a key application integration mechanism and how they are used by applications to communicate with the outside world. You'll learn how the microservices inside an application use events to maintain data consistency and discover how to go one step further and make events an integral part of your domain logic.

Most discussions about implementing microservices start by evaluating the technical options and their challenges. However, the real business value is in functionality. Allard Buijze demonstrates how to build evolutionary microservices, starting with a single application that can be scaled out and distributed once the sensible boundaries are known.