Book Image

Phoenix Web Development

By : Brandon Richey
Book Image

Phoenix Web Development

By: Brandon Richey

Overview of this book

Phoenix is a modern web development framework that is used to build API’s and web applications. It is built on Elixir and runs on Erlang VM which makes it much faster than other options. With Elixir and Phoenix, you build your application the right way, ready to scale and ready for the increasing demands of real-time web applications. This book covers the basics of the Phoenix web framework, showing you how to build a community voting application, and is divided into three parts. In the first part, you will be introduced to Phoenix and Elixir and understand the core terminologies that are used to describe them. You will also learn to build controller pages, store and retrieve data, add users to your app pages and protect your database. In the second section you will be able to reinforce your knowledge of architecting real time applications in phoenix and not only debug these applications but also diagnose issues in them. In the third and final section you will have the complete understanding of deploying and running the phoenix application and should be comfortable to make your first application release By the end of this book, you'll have a strong grasp of all of the core fundamentals of the Phoenix framework, and will have built a full production-ready web application from scratch.
Table of Contents (14 chapters)
4
Introducing User Accounts and Sessions

Creating a new poll

We have a nice new (well, okay, it's not that nice, but it is functional at least) interface for displaying our polls, but if we always have to go into an IEx terminal to create new polls it probably won't pick up in usage very quickly! Instead, we need to provide the users of the site with a simple web interface that they can use to create their own polls on demand! We'll do something very simple for our interface:

We'll also need to create two new actions in our controller to dictate the flow of new data into our database: new and create. The job of the new action is to set up the starting point of data that our form is going to work with, and create will handle actually creating the data and send some result of posting the form back to the end user! We should end up with a flow that looks like this:

We'll need to understand a little...