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Innards of an Elixir Project

After looking at the building blocks in the past chapter, we will now explore the fundamental aspects of any Elixir project. There are a few rules that need to be followed, but fortunately every one of them is simple to adopt and contributes to an understandable project structure. An application that doesn't get in the way of the evolution and maintenance tasks during all its years in production is a joy for the people who work with it, and this is exactly what we aim for.

We will start by learning what an Elixir application is and how we can structure an Elixir project, along with some of the existing good practices that you can leverage. We will introduce Umbrella applications and how they can help you to define more rigid boundaries between your project's components. When creating our umbrella project, we will use some common...

Key benefits

•Enhance your Elixir programming skills using its powerful tools and abstractions

•Discover how to develop a full-fledged file server

•Understand how to use Phoenix to create a web interface for your application.

Description

Running concurrent, fault-tolerant applications that scale is a very demanding responsibility. After learning the abstractions that Elixir gives us, developers are able to build such applications with inconceivable low effort. There is a big gap between playing around with Elixir and running it in production, serving live requests. This book will help you fll this gap by going into detail on several aspects of how Elixir works and showing concrete examples of how to apply the concepts learned to a fully ?edged application. In this book, you will learn how to build a rock-solid application, beginning by using Mix to create a new project. Then you will learn how the use of Erlang's OTP, along with the Elixir abstractions that run on top of it (such as GenServer and GenStage), that allow you to build applications that are easy to parallelize and distribute. You will also master supervisors (and supervision trees), and comprehend how they are the basis for building fault-tolerant applications. Then you will use Phoenix to create a web interface for your application. Upon fnishing implementation, you will learn how to take your application to the cloud, using Kubernetes to automatically deploy, scale, and manage it. Last, but not least, you will keep your peace of mind by learning how to thoroughly test and then monitor your application.

Who is this book for?

Mastering Elixir is for you if you have experience in Elixir programming and want to take it to the next level. This Elixir book shows you how to build, deploy, and maintain robust applications, allowing you to go from tinkering with Elixir on side projects to using it in a live environment. However, no prior knowledge of Elixir is required to enjoy the complex topics covered in the book.

What you will learn

•Use Elixir tools, including IEx and Mix

•Find out how an Elixir project is structured and how to create umbrella applications

•Discover the power of supervision trees, the basis for fault-tolerance

•Create a Domain-Specifc Language (DSL) that abstracts complexity

•Create a blazing-fast web interface for your application with Phoenix

•Set up an automatic deployment process for the cloud

•Monitor your application and be warned if anything unexpected happens

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

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Tyler Munyon Jul 10, 2019

Love the book so far, especially since we get to build an application that uses concepts that we are learning. Am wondering how to get the online version of the book on packt??

Amazon Verified review

Sean Bergstedt Apr 21, 2020

[REVISION]After re-referencing it a few more times, I've had time to reconsider my previous 1 star vote. There are some good sections on leveraging elixir's GenStage abstraction with Flow, which is unique and a pretty new addition to the Elixir scene. There are also some good sections on how to setup umbrella projects, how to integrate with SQL backend and best practices preserving coding style.The book is a bit rough around the edges, though, in terms of organization and just getting how the code works on your first read. Like I mentioned in my original review, you kind of have to hunt for what you want to learn and if you want to follow the code, you need to already have some familiarity with mix and the language. So, if you're just starting with Elixir, I'd recommend looking for one of the introductory books instead.[ORIGINAL]Lots of cross referencing and looking at the on-line source code to make sure your book code is tracking along nicely. Sometimes you have to look at something in later chapters in order to run code in earlier chapters. I ended up spending more time organizing the information the editors should have organized for me.I continue to be disappointed with Pakt Publishing. They just crank out books on volume instead of quality. At the end of the day, I don't blame the authors as I'm sure they spent a great deal of time on this, but the organization of code and flow of content is wildly out of sync with the quality one should expect for a book this price.

Mastering Elixir: Build and scale concurrent, distributed, and fault-tolerant applications

What do you get with Print?

Mastering Elixir

Innards of an Elixir Project

Elixir applications

Elixir project structure

Umbrella projects

ElixirDrip – our showcase application

Adopting a consistent coding style

Summary

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Mastering Elixir: Build and scale concurrent, distributed, and fault-tolerant applications

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Key benefits

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What you will learn

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