Check out the Alchemist's Edition

Elixir and Phoenix Screencasts

#38: Chat Room in 8 Minutes

One of the great features of Phoenix is how easily it allows developers to include realtime functionality in applications. In this episode we’ll use Channels to build a simple chat application in 8 minutes.

#37: Charts with Chart.js Part 2

In this episode we’ll take what we did in Charts with Chart.js Part 1 and build on it. Let’s take advantage of Phoenix and use Channels to make our chart update in realtime.

#36: Charts with Chart.js Part 1

In Part 1 of this series we’ll set the foundation by building a simple chart using the chart.js library. Our chart will display a static count of our movie genres.

#35: Gravatar with Phoenix

Gravatar is a great way to easily display avatars. In this episode we’ll create simple helper function that we’ll use to display a user’s Gravatar.

#34: Elixir Guards

In this episode we take a look at guards and how we can use them in Elixir. We’ll start by using guards with functions to see how they work. Then we’ll extract them into custom guards with defguard.

#33: Elixir Control Flow

In this episode we’ll learn about three different control structures in Elixir: if/else, case, and cond. If you’re new to Elixir or just learning programming this is a great episode to start with.

#32: Intro to Agents

Elixir Agents are used to manage state. In this episode we’ll learn how we can use an Agent to update and retrieve some state of our own.

#31: Composing Ecto Queries

In this episode we look at one of the great features of Ecto - composability. We’ll add a query into an existing filter to see how easy it is to compose queries in Ecto.

#30: Moving to Elixir Part 6

In part 6 we experiment with OTP to see how we can make our inventory import more resilient. Then we’ll use the power of concurrency in Elixir to speed up our inventory import.