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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

Datomic architecture


Datomic is a distributed database that supports ACID (http://docs.datomic.com/acid.html) transactions and stores data as immutable facts. Datomic is focused on providing a robust transaction manager to keep the underlying data consistent, a data model to store immutable facts, and a query engine to help retrieve data as facts over time. Instead of having its own storage, it relies on an external storage service (http://docs.datomic.com/storage.html) to store the data on disk.

Datomic versus traditional database

A typical database is implemented as a monolithic application that contains the storage engine, query engine, and the transaction manager all packaged as a single application to which clients connect to store and retrieve data. Datomic, on the other hand, takes a radical approach of separating out the Transaction Manager (Transactor) as a separate process to handle all the transactions and commit the data to an underlying Storage Service that acts as a persistence...

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