Dont accept the compromise between fast and beautiful you can have it all. Phoenix creator Chris McCord Elixir creator Jose Valim and awardwinning author Bruce Tate walk you through building an application thats fast and reliable. At every step youll learn from the Phoenix creators not just what to do but why. Packed with insider insights and completely updated for Phoenix 1.3 this definitive guide will be your constant companion in your journey from Phoenix novice to expert as you build the next generation of web applications. Phoenix is the longawaited web framework based on Elixir the highly concurrent language that combines a beautiful syntax with rich metaprogramming. The best way to learn Phoenix is to code and youll get to attack some interesting problems. Start working with controllers views and templates within the first few pages. Build an inmemory context and then back it with an Ecto database layer complete with changesets and constraints that keep readers informed and your database integrity intact. Craft your own interactive application based on the channels API for the realtime applications that this ecosystem made famous. Write your own authentication plugs and use the OTP layer for supervised services. Organize code with modular umbrella projects. This edition is fully updated for Phoenix 1.3 Elixir 1.3 and Ecto 2.1 with a new chapter on using Channel Presence to find out whos connected even on a distributed application. Use the new generators and the new ExUnit features to organize tests and make Ecto tests concurrent. This is a book by developers and for developers and we know how to help you ramp up quickly. Any book can tell you what to do. When youve finished this one youll also know why to do it. What You NeedTo work through this book you will need a computer capable of running Erlang 18 or higher Elixir 1.3 or higher Phoenix 1.3 or higher and Ecto 2.1 or higher. A rudimentary knowledge of Elixir is also highly recommended.