Book Image

Clojure Programming Cookbook

Book Image

Clojure Programming Cookbook

Overview of this book

When it comes to learning and using a new language you need an effective guide to be by your side when things get rough. For Clojure developers, these recipes have everything you need to take on everything this language offers. This book is divided into three high impact sections. The first section gives you an introduction to live programming and best practices. We show you how to interact with your connections by manipulating, transforming, and merging collections. You’ll learn how to work with macros, protocols, multi-methods, and transducers. We’ll also teach you how to work with languages such as Java, and Scala. The next section deals with intermediate-level content and enhances your Clojure skills, here we’ll teach you concurrency programming with Clojure for high performance. We will provide you with advanced best practices, tips on Clojure programming, and show you how to work with Clojure while developing applications. In the final section you will learn how to test, deploy and analyze websocket behavior when your app is deployed in the cloud. Finally, we will take you through DevOps. Developing with Clojure has never been easier with these recipes by your side!
Table of Contents (16 chapters)
Clojure Programming Cookbook
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface

Riemann - monitoring deliverance and slacking


It always seems like a real pain to use monitoring in production. The only thing that should be important is to get the information you want when you want it, in the same way that you can pick up this book when you need to take your daily Clojure shot.

In this recipe, we will look at Riemann, http://riemann.io, a stream-based monitoring framework. Riemann comes with easy client APIs, simple setup, an interactive dashboard, and simple interaction with other notification frameworks, such as the new kid on the block and Slack.

The Riemann service, at its core, is written in Clojure and configured in Clojure. Event handling through streams concepts feels and acts very functional.

Eventually, it should also become a breeze to set this up for your cluster of Raspberry Pi's, and collect IoT knowledge in real time.

Getting ready

This recipe is a bit different from the other ones as the main point of interaction is a service, so we will quickly go through...