Phoenix WebSockets Under a Microscope 🔬

This is a code-reading and exploration post about the WebSockets side of Phoenix. It builds upon some of the tracing techniques showcased in the previous post, to observe some of the internals of Phoenix. It also features some tricks I commonly employ to debug WebSocket related issues. The title and nature of this post are inspired by the marvellous book Ruby Under a Microscope written by Pat Shaughenessy. WebSockets The WebSocket Protocol enables two-way communication between a client running untrusted code in a controlled environment to a remote host that has opted-in to communications from that code »

Debugging & Tracing Elixir Applications

This post describes a few useful techniques to debug running Erlang / Elixir applications. It is meant to be a cheatsheet of things you can do to inspect and alter the state of an application without requiring the installation of packages. For any of the code snippets below, autoverse refers to my local hostname, which itself refers to one of my favourite science fiction novels, “Permutation City” by Greg Egan. »

Elixir.LDN 2017

I returned from vacations in beautiful Greece (Amorgos island 🏝), to attend Elixir.LDN-2017 in London. General Feeling The venue was at a very convenient location and was well suited for the conference. I could see many familiar faces and felt like a supercharged edition of the London Elixir meetup. If you’re interested in attending the Elixir London meetups you probably want to join #london of the elixir-lang slack (get an invite) and the meetup. »

ElixirConf.EU 2017

I was in beautiful Barcelona for ElixirConf.EU 2017. In this post I’m sharing some of my notes and impressions about it. Team Quiqup [Zorbas, Hawkins, Rabe] Tutorials I attended the tutorial “Microservices under the Umbrella” by Makis Otman & Georgina McFadyen, both working for 8th Light. We hacked on code from the following repositories: https://github.com/Maikon/elixir_setup https://github.com/Maikon/pharos The was goal to create an umbrella application, going through the pros and cons of such an architecture. »