Programming

Elixir-learning screencast and notes: Ecto belongs_to and has_many (tagged: Ecto, Associations, Beginner)

Elixir and Phoenix tips, courses, and more.

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Working with the file system in Elixir does not really differ from doing so using other popular programming languages. There are three modules to solve this task: IO, File, and Path. They provide...

I want to enable my Nerves devices to talk to each other using Distributed Erlang. Here is my...

Necessity is the mother of invention… or in the case of software, need begets packages. And packages require names, preferably something…

I’m trying to get an QR code from the google API. url = "https://chart.googleapis.com/chart?chs=150x150&cht=qr&chl=Hello%20world" response = HTTPoison.get!(url) How do I send the body of the response as json out in my Phoenix application? Right now I’m getting the following error: ** (exit) an exception was raised: ** (Jason.EncodeError) invalid byte 0x89 in 137, 80, 78, 71, 13, 10, 26, 10, 0, 0, 0, 13, 73, 72, 68, 82, 0, 0, 0, 150, 0, 0, 0, 150, 8, 2, 0, 0, 0, 179, 99, 230, 18...

Hi folks! We’ve just finished (me and @smita) our new QRCode library for Elixir. Now you can generate QR code whenever you’ll want… 🎉 Basic usage looks like: iex qr = QRCode.create("Hello World") iex qr | Result.and_then(&QRCode.Svg.save_as(&1,"/path/to/hello.svg")) {:ok, "/path/to/hello.svg"} If you want to change, for example, ecc level and the color of QR code you can write iex settings = %QRCode.SvgSettings{qrcode_color: {17, 170, 136}} iex qr = QRCode.create("quiz_string", :h...

Learn to extract data from a QR code in Elixir

Today on Elixir Basics, I'll do a quick demo of how to write a multi-process interval timer in Elixir.

Working on the Nerves project, the Embedded framework for Elixir, has given me an increased appreciation for how Frank Hunleth and his collaborators through the years have structured things. And while I've found crossing into the Linux-heavy part of it difficult and frustrating there has been reasonable steps to take all the way from building the application layer in Elixir all the way back to fighting the bootloader. I'll try to detail how a Nerves system is built up in this post.

Learn about the Nix on its functionality as a package manager, insights about using Nix in production, and a guide on integrating Nix with Elixir apps

The Nerves project is a way of building embedded Linux devices where the BEAM virtual machine takes care of running things. This does not constrain what you can run.

Kamal is a deployment tool designed for deploying containerized applications. It’s specifically optimized for use with docker based applications, simplifying the process of building, deployin…

With our initial mockups complete, we were eager to start coding in LiveView Native (LVN). There are two primary ways to debug our iOS app: using Xcode or LVN Go.

This post describes the use of the Erlang xmler library to process XML in Elixir. Two example modules are provided. Both search XML files for a regular expression. One uses a tree walk approach, while the other uses xpath. In addition, we learn how to use Erlang records in Elixir.

Explore the Saga pattern in Elixir for managing complex, multi-step processes. Learn about choreography and orchestration approaches, with code examples for implementing long-lived transactions.

How we rolled out zstandard and other improvements across our gateway cluster to reduce the amount of bandwidth that’s used by our clients.

The lines that divide us, for better or for worse

We're showcasing people building with LiveView Native and the success they've had doing so.

Zach Povery's blog about technology; programming in python, typescript and go; and life.

If a value mutates in the forest with no one to see it, does it really mutate?

Welcome to the first post of our development diary for the Bonfire native app. In this series, we'll journey together through the entire process of designing and publishing Bonfire on the Apple App Store using LiveView Native.

Dive into the world of passwordless authentication as we explore implementing Passkeys in a Phoenix Elixir app using SimpleWebAuthn. Learn how to handle registration and authentication flows, including the crucial process of encoding and decoding public credential keys between TypeScript and Elixir.

It's a classic job interview question. Learn how to give the answer that's specific to the Phoenix framework