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Microservices with Clojure

You're reading from Microservices with Clojure

Product type Book

Published in Jan 2018

Publisher Packt

ISBN-13 9781788622240

Pages 336 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Anuj Kumar

Table of Contents (18) Chapters

Title Page

Dedication

Packt Upsell

Contributors

Preface

1. Monolithic Versus Microservices

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

1. Other Books You May Enjoy

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Index

Service discovery

All the APIs exposed by a microservice are accessible via the IP address and port of the host machine on which the microservice is deployed. Since microservices are deployed in a virtual machine or a container that has a dynamic IP, it is quite possible that the IPs and ports that are allocated to the microservice APIs may change over time. Therefore, IP addresses and ports of services should never be hardcoded by the depending microservice. Instead, there should be a common database of all the services that are active for the current application. Such a database of services is called the service registry in microservices architecture and is always kept up to date with the location of the microservices. It keeps the details of all the active microservices including their current IP address and port. Microservices then query this service registry to discover the current location of the required microservices and connect to them directly.

Service registry

The service registry...

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Authors (1)

Anuj Kumar

Anuj Kumar is the co-founder and chief architect of FORMCEPT, a data analytics startup based in Bangalore, India. He has more than 10 years of experience in designing large-scale distributed systems for storage, retrieval, and analytics. He has been in industry hacking, mainly in the area of data integration, data quality, and data analytics using NLP and machine learning techniques. He has published research papers at ACM conferences, got a few patents granted, and has spoken at TEDx. Prior to FORMCEPT, he has worked with the Oracle Server Technologies division in Bangalore, India.

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