Book Image

Microservices with Clojure

By : Anuj Kumar
Book Image

Microservices with Clojure

By: Anuj Kumar

Overview of this book

The microservice architecture is sweeping the world as the de facto pattern with which to design and build scalable, easy-tomaintain web applications. This book will teach you common patterns and practices, and will show you how to apply these using the Clojure programming language. This book will teach you the fundamental concepts of architectural design and RESTful communication, and show you patterns that provide manageable code that is supportable in development and at scale in production. We will provide you with examples of how to put these concepts and patterns into practice with Clojure. This book will explain and illustrate, with practical examples, how teams of all sizes can start solving problems with microservices. You will learn the importance of writing code that is asynchronous and non-blocking and how Pedestal helps us do this. Later, the book explains how to build Reactive microservices in Clojure that adhere to the principles underlying the Reactive Manifesto. We finish off by showing you various ways to monitor, test, and secure your microservices. By the end, you will be fully capable of setting up, modifying, and deploying a microservice with Clojure and Pedestal.
Table of Contents (18 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Summary


In this chapter, we focused on how to build configurable applications that can adapt as per the requirements and dependencies at hand. We looked at an open source configuration utility called Omniconf that provides an effective way to define and validate configuration parameters for Clojure applications.

We also looked at how the runtime state of the application can be composed and shared among various namespaces of the Clojure application. We looked at an open source library called mount that helps applications to manage and compose their states at runtime without affecting the overall structure of the implementation.

In the next chapter, we will learn how to adopt event-driven architecture for Helping Hands microservices. We will also learn how to build data flows for the microservices of Helping Hands.