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

Chapter 8. Building Microservices for Helping Hands

 

"It's not the ideas; it's design, implementation and hard work that make the difference."

- Michael Abrash

Identifying bounded context is the first step towards building a successful microservices-based architecture. Designing for scale and implementing them with the right technology stack is the next and the most crucial step in building a microservices-based application. This chapter brings together all the design decisions taken in the first part of the book (Chapter 2, Microservices Architecture and Chapter 3, Microservices for Helping Hands Application) and describes the steps to implement them using the Pedestal framework (Chapter 6, Introduction to Pedestal). In this chapter, you will learn how to:

  • Implement Hexagonal design for microservices
  • Create scalable microservices for Helping Hands using Pedestal
  • Implement workflows for microservices using the Pedestal interceptor chain
  • Implement the lookup service of Helping Hands to search for...