Learn how you can easily run one specific test case or a group test cases in Elixir without having to run through the whole test suites and custom workarounds.

Learn how you can support dynamic attributes when using reusable components with assigns_to_attribute/2 function.

Learn how to use Erlang’s built in :odbc interface to query using streams effectively

How Elixir School migrated from Jekyll to a Phoenix powered site

Today I learned how to write cleaner Ecto select queries with the help of Ecto.Query.map.

Learn how we’re checking and monitoring the new Elixir School site to detect and fix accessibility and HTML issues using Rocket Validator.

Enjoy reading your favorite Elixir books with a group of other Alchemists, introducing the Elixir Book Club.

Learn how to use pattern matching instead of guard clauses to implement really clean control flow in Elixir.

Learn how to use the Contex package to render server-side SVG charts that you can update in real-time with LiveView.

In this series, we’re instrumenting a Phoenix app and sending metrics to StatsD with the help of Elixir and Erlang’s Telemetry offerings. In Part III we’ll incorporate Erlang’s telemetry_poller library into our Phoenix app so that we can observe and report on Erlang VM Telemetry events.

In this series, we’re instrumenting a Phoenix app and sending metrics to StatsD with the help of Elixir and Erlang’s Telemetry offerings. In Part III we’ll examine Phoenix and Ecto’s out-of-the-box Telemetry events and use Telemetry.Metrics to observe a wide-range of such events.

In this series, we’re instrumenting a Phoenix app and sending metrics to StatsD with the help of Elixir and Erlang’s Telemetry offerings. In Part II we’ll use Elixir’s Telemetry.Metrics and TelemetryMetricsStatsd libraries to define and send metrics to StatsD for a given Telemetry event.

The recent release of the LiveDashboard library allows us to visualize our application metrics, performance and behavior in real-time. In this post, we’ll add LiveDashboard to our Phoenix app, examine the out-of-the-box features and take a look under the hood to understand how LiveDashboard hooks into Telemetry events in order to visualize them.

In this series, we’re instrumenting a Phoenix app and sending metrics to StatsD with the help of Elixir and Erlang’s Telemetry offerings. In Part I we’ll start out by setting up a basic, DIY Telemetry pipeline and examining how Erlang’s Telemetry library works under the hood

It’s easy to end up with an overly complex LiveView that houses lots of business rules and responsibilities. We can use Phoenix.LiveComponent to build a LiveView feature that is clean, maintainable and adherent to the Single Responsibility Principle.

Follow along as we use build Elixir School’s Slack invite portal: Admissions.

We’ll use LiveView’s live_link/2 together with the handle_params/3 callback to allow users to sort a table in real-time.

The release of Elixir 1.9 gave us mix release and the ability to support basic releases, runtime configuration and more, natively in Elixir. Learn how we were able to build a production release of an Elixir umbrella app with Docker, mix release and the new Config module.

We had a great time at ElixirConf 2019! Hear about Elixir School’s two workshops, along with the highlight talks and activities that we enjoyed this year.

Before you reach for adding another association to your schema, consider using Ecto.Query#select_merge/3 with a virtual field instead.