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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

Product type Paperback

Published in Jan 2018

Publisher Packt

ISBN-13 9781788622240

Length 336 pages

Edition 1st Edition

Languages

Clojure

Tools

Kafka

Concepts

Microservices

Author (1):

Anuj Kumar

View More author details

Table of Contents (18) Chapters

Title Page

Dedication

Packt Upsell

Contributors

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

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Index

Using WebSockets

WebSockets is a communications protocol (https://en.wikipedia.org/wiki/Communication_protocol) that provides full-duplex (https://en.wikipedia.org/wiki/Duplex_(telecommunications)#FULL-DUPLEX) communication channels over a single TCP connection between client and server. It allows clients to send messages to the server and receive server events over the same TCP connection without polling. Compared to Server-Sent Events (SSE) (https://www.w3.org/TR/eventsource/), WebSockets support full-duplex communication between client and server instead of a one-way push. Also, SSEs are implemented over HTTP, which is an entirely different TCP protocol compared to WebSocket. Although both protocols are different, they both depend on the TCP layer.

Note

RFC 6455 (https://tools.ietf.org/html/rfc6455) states that WebSocket is designed to work over HTTP ports 80 and 443 as well as to support HTTP proxies and intermediaries, thus making it compatible with the HTTP protocol. To achieve compatibility...

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Authors (1)

Anuj Kumar

Anuj Kumar

Anuj Kumar is a senior enterprise architect with FireEye, a Cyber Security Service Provider where he is involved in the Architecture, Strategy, and Design of various systems that deal with huge amounts of data on a regular basis. Anuj has more than 15 years of professional IT Industry experience ranging from development, design, architecture, management, and strategy. He's an active member of OASIS Technical Committee on STIX/TAXII specification. He is a firm believer in Agile Methodology, Modular/ (Staged) Event Driven Architecture, API-First Approach, and Continuous Integration/Deployment/Delivery. Anuj is also an author of Easy Test Framework, which is a Data Driven Testing Framework used by more than 50 companies.

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