This post covers a problem I ran into when reading files on Heroku in an Elixir Phoenix app.

https://davidtang.io/2019/02/01/reading-a-file-in-elixir-on-heroku.html

https://minhajuddin.com/2019/02/01/pearls-of-elixir-interesting-patterns-from-popular-elixir-packages/

Telecommunications and the web worked in different ways for years: until recently, the former was all about latency, concurrency, and long-running connections, while the latter, with HTTP, was just about “hits” on ephemeral connections. But the web evolved rapidly, and the things that were important in telecommunications became important for the web, too. https://www.welcometothejungle.co/articles/history-erlang-elixir

Using a real problem that needed solving, I describe the process I took in building a simple Task runner with a GenServer. https://www.jackmarchant.com/articles/using-a-genserver-to-handle-asynchronous-concurrent-tasks

In this episode of ElixirMix, the panel talks with Kevin Moore and Barak Karavani at CarLabs about their library Gremlex, for talking to graph databases. We talk about graph databases, how they help, AWS Neptune, the Gremlin query language, company benefits of open sourcing, and much more!

Podcast Episode

How to be sure tasks are executing once (and only once) across multiple servers - https://medium.com/flatiron-labs/database-locking-with-ecto-in-elixir-9804cdbd1866

I just released rocksdb 1.0.0 a binding of rocksdb for Erlang and Elixir based applications. Enjoy the stable API :) RocksDB is a library that provides an embeddable, persistent key-value store for fast storage, you can find more information about it on http://rocksdb.org.

erlang-rocksdb 1.0.0 includes the following changes:

• first stable version
• miscellaneous build improvements with new build options and optimisations: https://gitlab.com/barrel-db/erlang-rocksdb/blob/master/doc/customize_rocksdb_build.md
• stable API

Most people will want to start with the Getting Started section of our wiki: https://gitlab.com/barrel-db/erlang-rocksdb/wikis/Getting-started. Full API reference: https://gitlab.com/barrel-db/erlang-rocksdb/blob/master/doc/rocksdb.md

Sources are available on gitlab: https://gitlab.com/barrel-db/erlang-rocksdb/tree/master

Or via hex: https://hex.pm/packages/rocksdb

A story about how I was inspired by Andrea Leopardi’s talk “Property-based testing is a mindset” he gave at ElixirConfEU 2018 in Warsaw, Poland, and what is ExopData as the result of this inspiration.

Exop + StreamData = ExopData - a tool which helps you generate data and write property-based tests.

https://medium.com/@andreichernykh/https-medium-com-andreichernykh-exop-on-streamdata-75a2115d150d

This is a tiny library I threw together as I realised it would be useful in a couple of scenarios. The source is in Erlang, making it easy to use in both languages, and has example usage in both.

Check it out here: https://github.com/whitfin/sleeplocks

Distributed Phoenix Chat with PubSub PG2 adapter

In this article we see how to cluster Phoenix Chat nodes, using distributed Elixir. We see how pg2 works and inspect how Phoenix efficiently broadcasts the messages in a distributed chat app.

Parsing complex text requires a context-free grammar, here is a brief video tutorial on how to work with them

https://www.youtube.com/watch?v=V_-a2P8G3ms

I have created a new Email Course on building releases with Elixir.

http://bit.ly/elixir-release-ecourse

https://dsdshcym.github.io/blog/2019/01/29/my-advent-of-code-2018-recap/

In this blog post, I wrote about what I learned from AoC 2018:

• Stop Thinking, Start Solving (Don’t get paralyzed by complexity estimations)
• Functional thinking (a.k.a Streams v.s. Recursion)
• Don’t Use Processes for Encapsulation (To spawn, or not to spawn?)
• Binary Search FTW

http://big-elephants.com/2019-01/facebook-genstage/

I made another post on using Actions with Elixir code: This time, I deploy an app to the Heroku Container Runtime using Siri.

https://jclem.net/posts/2019-01-28-hey-siri-deploy-my-elixir-app/

https://medium.com/@olshansky/testiex-easier-test-driven-development-in-elixir-761cd1a9f11

Single page chat application with routing and server side rendering built entirely in Elixir:

• Demo
• Code

A blog post on how to write GitHub Actions for Elixir. This allows you to do things like run tests, check code formatting, and manage releases for Elixir projects using GitHub Actions.

https://jclem.net/posts/2019-01-26-github-actions-for-elixir/

https://www.badykov.com/elixir/2019/01/26/ethereum-abi-in-elixir/

ExVenture is a text based MMORPG. Refactors continue this month, along with some new game mechanics (proficiencies). Check out the post for more information!

https://blog.oestrich.org/2019/01/exventure-updates