Preface

Phoenix's learning curve is steep. I am not sugar coating this book with a "this is easy" start. But I made it as easy and straight forward as possible. Buckle up if Elixir is your first functional programming language.

I learn best from "Hello World!" like examples. I do not care about abstract ideas or programming theories. Give me a good and clean example and I make sense of it. If you like this kind of teaching you are reading the right book. Otherwise it is not too late for returning it.

  • This book teaches by presenting bite size code examples. I created those examples in a way that you can understand them by reading it’s code. In addition I add callouts with explanations next to the important source code lines.

  • This book is a step by step guide. We start at zero. As few chicken-egg-problems are inescapable but I keep that to a minimum. You are expected to understand the basics of programming and HTML but other than that you don’t have to have any knowledge of Phoenix or Elixir.

  • I will not hesitate to oversimply stuff. My aim is to get you productive in the quickest time possible. There are other resources to learn the details (e.g. the magic of OTP).

  • The web-applications in this book are not intended to become eye candy. We will not waste time and energy to make stuff beautiful.

And we are not going to build one giant application in the course of the book. We tackle small problems which make sense within their realm.

If a specific chapter or section doesn’t interest you: Go ahead and skip it. You can come back later if needed.

The chapter Elixir Introduction offers a jump start for everybody who hasn’t worked with Elixir before. You don’t have to work through all examples. But you should read it to get the basic ideas of the language.

Stefan Wintermeyer

PS: Please do send me feedback about this book by e-mail to sw@wintermeyer-consulting.de and follow me on Twitter (@wintermeyer). To receive positive feedback from a reader is a happy moment for any author!

Finding Help

During or after reading this book there will come the time when you have a problem or a question. Here is my advise for those times:

  • https://stackoverflow.com

    My favorate spot to find help. There is a good chance somebody already had the same problem and it is answered on stackoverflow.com. If not you normally get surprisingly fast answers for new questions.

  • https://www.google.com

    Phoenix is not an easy to search for term. There are millions of construction companies with Phoenix in their name which can help you build a house but don’t offer any programming help at all. You often want to add either Framework or Elixir to your search queries.

  • Send me an e-mail to sw@wintermeyer-consulting.de

    Feel free to send me an email if everything else doesn’t help. Please add the used Elixir and Phoenix version and other information which helps (e.g. database and operation system). If possible, create first a question on stackoverflow.com and send me an email with the link to that question. By that I can answer it for you and for everybody else who has the same problem in the future.

Training

I offer a 1 and 2-day remote Phoenix beginners training. During the training we work via remote pair programing (Visual Studio with the Live Share extension). Very good way to get up to speed. No previous knowledge needed. OK, you need to have basic programming and HTML knowledge. Please send me an email to sw@wintermeyer-consulting.de for further information.

Onside trainings are possible too. But that depends on the local Corona travel restrictions.