Chapter 1, Age of Microservices, covers the evolution of computing and how development has changed and shifted from paradigm to paradigm depending on processing capacity and user demand, ultimately resulting in the age of microservices.

Chapter 2, Modules and Toolkits, introduces you to some modules that help you create a microservice, detailing different approaches: from very raw and simple modules, such as Micro and Express, to full toolkits, such as Hydra and Seneca.

Chapter 3, Building a Microservice, covers the development of a simple microservice using the most common module, Express, with a very simple HTTP interface.

Chapter 4, State and Security, covers the development of our microservice: from using the server filesystem to moving to a more structured database service, such as MySQL.

Chapter 5, Testing, shows how to use Mocha and chai to add test coverage to our previous microservice.

Chapter 6, Deploying Microservices, introduces you to Docker and helps you create a container image to use to run our microservice.

Chapter 7, Scaling, Sharding, and Replicating, covers the concept of replication when using Docker Swarm and Kubernetes locally to scale our microservice.

Chapter 8, Cloud-Native Microservices, shows how to migrate our microservice from the local Kubernetes to Google Cloud Platform, as an example of a fully cloud-native microservice.

Chapter 9, Design Patterns, enumerates some of the most common architectural design patterns and reviews the continuous integration and deployment loop used throughout the book.