blog.voltone.net
Erlang/OTP 21 Posted 2018-06-23 08:36:19.000000 It’s that time of the year: there is a new major release of Erlang/OTP. Much has been said already about the performance enhancements, but as usual I am mostly interested in the security contents. And this release does not disappoint: Removal of weak ciphers and key exchange algorithms, along with other TLS improvements Fail-secure handling of NULL b
Elixir — quick reference for debugging techniques
“Red and black beetle climbs on purple plants in the wild” by Mahdi Shakhesi on Unsplash Much has been said about Elixir debugging techniques, but in this post, I’d like to give a quick overview of all possible options to serve as a go-to reference when you need to debug Elixir code. Enough talking, let’s check each of them: IO.inspectThe simplest technique: IO.inspect to printIO.inspect/2can also
Building and configuring a Phoenix app with Umbrella for releasing with Docker
Building and configuring a Phoenix app with Umbrella for releasing with Docker This tutorial goes through the process of building Elixir and Phoenix apps within an Umbrella project, releasing it with Distillery and containerizing it with Docker, ready for deploying in production. There's an accompanying repository for this tutorial, but you'll find commits related to each part linked in the articl
blog.voltone.net
The great HTTPS client shoot-out Posted 2016-11-05 08:03:50.000000 Let me start off by apologising for the click-bait title. A better title would be: “On the security posture of Elixir HTTPS clients”. It’s a topic I covered in my ElixirConf EU talk, but it recently came up again. The goal of this post is not to compare features, performance or usability, or even to choose a ‘most secure’ client. I
Dawn of the Microlith - Monoservices with Elixir · Nothing interesting...
Introduction Microservices are the newest technology trend and should be approached with deliberation. There is a ludicrous amount of subject matter on it, which I’m not going to cover. The important part to understand is if they are a fit for your organization. To measure if the architecture adds business value, it really comes down to how quickly can features be released to production and the st
Elixir, processes and this thing called OTP « Plataformatec Blog
One of the notable features provided by the Elixir language is the way it handles concurrency, how this is beneficial on a daily basis and adds value to the final software. And one of the things that comes up when learning about concurrency in Elixir is an acronym we hear a lot, called OTP. The acronym stands for Open Telecom Platform, but it isn’t used just for telecom nowadays. In the book Desig
Advanced Techniques for Architecting Flow in Elixir · rrrene
Advanced Techniques for Architecting Flow in Elixir 26 Mar 2018 // posted in Architecting Flow in Elixir In the last post we explored how we can use either |> or with to model how data flows through our program. There is, however, a third concept to model flow in your applications: to hand down a “token” during the execution of your program. This token contains all the information necessary for yo
Lightweight Dependency Injection In Elixir (Without the Tears)
Lightweight Dependency Injection In Elixir (Without the Tears) Andrew Hao · March 19th, 2018 In our last Elixir blog post, “Functional Mocks with Mox in Elixir”, we discussed how testing across module boundaries could be made easier by creating a Behaviour for a collaborating module, then utilizing the wonderful framework Mox to substitute a lightweight mock module in tests. This approach is well
Functional Mocks with Mox in Elixir
Functional Mocks with Mox in Elixir Andrew Hao · January 16th, 2018 If you’re like me, you came over to Elixir from Ruby and quickly found that certain development assumptions so common to Ruby (and object-oriented programming) require some adjustment in this new functional language. Recently, I was writing an Elixir-based Alexa skill that needed to reach out to an external service, the Alexa Devi
Architecting Flow in Elixir Programs: An Introduction · rrrene
Architecting Flow in Elixir Programs: An Introduction 30 Jan 2018 // posted in Architecting Flow in Elixir Getting the “flow” of a program is one of the first things I do when looking at open source software or joining a new project at work. The easier it is to grasp how data flows through a program, the easier it is for me as a developer to estimate the impact of changes (and the business of soft
Should I Use `with` or `|>` for Architecting Flow in Elixir Programs? · rrrene
Should I Use `with` or `|>` for Architecting Flow in Elixir Programs? 10 Mar 2018 // posted in Architecting Flow in Elixir In the last post we explored how data flows through our program and why it is important to recognize that the business of software is all about new and changing requirements. We implemented a simple Mix task to convert images to a given format. We can, as indicated in the last
Devon C. Estes
I was recently doing some work on documenting and adding some missing typespecs to the Elixir codebase, and in that work I saw something that I thought I could improve. def default_options do [ enabled: true, doc_bold: [:bright], doc_code: [:cyan], doc_headings: [:yellow], doc_inline_code: [:cyan], doc_table_heading: [:reverse], doc_title: [:reverse, :yellow], doc_underline: [:underline], width: 8
『プログラミングElixir』日本語版以降のElixirの進化 - TOKYO OYASUMI CLUB
『プログラミングElixir』の日本語版はElixir 1.2を想定して書かれていますが，現在の最新版は1.6.0-rc.1となり，そこそこバージョンが上がってしまっています． そこで，これらのバージョン間での違いを雑にまとめました． なお，書いている人はElixir初心者なので，説明不足や表記の間違いなどあればコメントなりプルリクなりでご報告ください． 文法の変更 変数名とatomのUnicode対応 (since 1.5) (引用符なしの)atomと変数名に，Unicodeが使えるようになりました．例えば も1.5以降では有効な文になります． 詳細: elixir/CHANGELOG.md at v1.5 · elixir-lang/elixir ネストしたブロック内での代入の非推奨化 (since 1.3) ifやcaseなどの中で外側のスコープにある変数への代入を行うことが非推奨化
How Elixir's Ecto Promotes Well-Designed Applications
Oct 30 2017 How Elixir's Ecto Promotes Well-Designed ApplicationsAs consultants, our job is to provide the most value possible to our clients over the course of our engagement. As engineers, our desire is to build software that is a joy to work on. Thankfully, these goals are not mutually exclusive. In trying to meet both of them, it helps to focus on building well-designed applications. Since "we
Mix xref to the rescue!
Last week, i told you about the soon-included code formatter in the standard Elixir build tool Mix. Today, we’re continuing our journey into the amazing things that Mix can do for you. There will be three features that I’m going to spotlight, just skip over whatever section if you already know it. This is a What the hell, this is a thing? How do I use that? type of post. Short intro to mix xref mi
OpenTracing Elixir? Yes Please!
Do you fancy watching your application logs live in production to detect anomalies? If so, I am sorry I can’t help you! A Country for Old Man! I’ll admit it, in my younger days I would make good use of my cat like reflexes to detect application anomalies while watching my production logs scroll by. Like in the movie, watching my screen, I’d gotten pretty good about finding anomalies in the Matrix.
Learning Elixir's Collectable Protocol
In this post I dive into Elixir’s Collectable protocol. After working through some theory we’ll dig into existing implementations and then implement Collectable for some of our own types. Also, if you’ve been following along in my series on application architecture, we’ll be adding Collectable to the UnshorteningPool. This is something I’ve been talking about doing for some time. If you haven’t be
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From Models to Contexts in Phoenix 1.3.0
Echobind
