Chapter 9. A reactive interface

This chapter covers

  • Headless APIs
  • HTTP, XML, and REST
  • JSON
  • Expressive APIs
  • Play
  • Akka HTTP

Now that you’ve seen how to build a focused microservice containing CQRS command or query functionality, how do you get at it? How does a client use these shiny new reactive applications? Now you need an interface for your service to allow its rubber to meet the road. The service interface (or API) is the way for clients as well as other services to interact with that particular service. In this chapter, we show you how to create a service interface using the most common reactive tools and standards. This chapter also shows you how to add a RESTful interface to your services and shows some basics such as authentication, ...

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