Preface

Microservices are an approach to distributed systems that promote the use of finely grained services that can be changed, deployed, and released independently. For organizations that are moving toward more loosely coupled systems, with autonomous teams delivering user-facing functionality, microservices work incredibly well. Beyond this, microservices provide us with a huge number of options for building out systems, giving us a lot of flexibility to ensure our system can change to meet the needs of the users.

Microservices aren’t without significant downsides, though. As a distributed system, they bring a host of complexity, much of which may be new even to experienced developers.

The experiences of people all over the world, along with the emergence of new technologies, are having a profound effect on how microservices are used. This book brings these ideas together, along with concrete, real-world examples, to help you understand whether microservices are right for you.

The scope of Building Microservices is broad, as the implications of microservice architectures are also broad. As such, this book should appeal to people interested in aspects of design, development, deployment, testing, and maintenance of systems. Those of you who have already embarked on the journey toward finer-grained architectures, whether for a greenfield application or as part of decomposing an existing, more monolithic system, will find plenty of practical advice to help you. This book will also help those of you who want to know what all the fuss is about, so that you can determine whether microservices are right for you.