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Microservices with Clojure

You're reading from   Microservices with Clojure Develop event-driven, scalable, and reactive microservices with real-time monitoring

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Product type Paperback
Published in Jan 2018
Publisher Packt
ISBN-13 9781788622240
Length 336 pages
Edition 1st Edition
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Author (1):
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Anuj Kumar Anuj Kumar
Author Profile Icon Anuj Kumar
Anuj Kumar
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Table of Contents (13) Chapters Close

Preface 1. Monolithic Versus Microservices FREE CHAPTER 2. Microservices Architecture 3. Microservices for Helping Hands Application 4. Development Environment 5. REST APIs for Microservices 6. Introduction to Pedestal 7. Achieving Immutability with Datomic 8. Building Microservices for Helping Hands 9. Configuring Microservices 10. Event-Driven Patterns for Microservices 11. Deploying and Monitoring Secured Microservices 12. Other Books You May Enjoy

Achieving Immutability with Datomic

"Most of the biggest problems in software are problems of misconception."

- Rich Hickey

Microservices depend on the underlying database to reliably store and retrieve data. Often applications like Helping Hands need to store user transactions consistently along with user locations that may change over time. Instead of updating the user location permanently and losing the history of the changes, a good application must maintain the change in data so that it can be queried over time. Such requirements expect the data stored in the database to be immutable. Datomic (http://www.datomic.com/) is one such database that not only provides durable transactions but also has the concept of immutability built into its core so that users can query the state of the database over a period of time. Datomic is also written in Clojure, which is...

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