This month ExVenture, a text based multiplayer game server, started going distributed! There were a few other game updates but the biggest news is being able to use distributed Erlang clustering for load balancing.

https://blog.oestrich.org/2018/04/exventure-updates/

The first step in participating in Bitcoin’s peer-to-peer network is connecting to your first peer node. Check out how we can use Erlang’s :gen_tcp to connect to a node, and send hand-crafted packets to kick off communication.

How to derive HD Wallet Seed from a mnemonic in Elixir?

https://k.lelonek.me/bitcoin-wallet-seed

A tribute to Elixir Programming language, in the form of a love letter, expressing ones love with Elixir.

Just expressed love for programming in Elixir.

Take a Moment and share your Experience as an Elixir Developer.

Hammer is a rate-limiter with pluggable backends.

Version 4.0.0 introduces a new worker-pool implementation for backends:

http://blog.00null.net/post/173234681496/hammer-v400

The choices you make at foundational points of your architecture can have massive implications down the road for your Elixir applications. By taking an informed approach to logging, you can set yourself up for success.

https://www.verypossible.com/blog/thoughtful-logging-in-elixir-a-phoenix-story

Writing a migration script to run migrate/rollback/seed when releasing Phoenix/OTP app by Distillery

https://thefirstapril.com/2018/04/23/Running-migration-in-Distillery/

ModestEx - Pipeable transformations on html strings (with CSS selectors), e.g. find(), prepend(), append(), replace(), remove(), insert_after(), insert_before(), etc.

Get started in seconds with Elixir web applications using Raxx.

Generated project includes a lightweight web layer and automatic recompilation. Options include support for bundling JavaScript and using Docker.

Last one from me this week is first release of plymio_codi. Codi is a tool for building and compiling quoted forms for common code patterns. Think: bang functions, delegations. For example create bang functions for one or more functions in a module.

Another new package plymio_funcio. Lots of utility functions, especially for enumerables - including mapping elements concurrently in separate tasks.

First release of plymio_fontais) this week. It was written as a support package for the Plymio and Harnais package families but all the functions are general purpose.

Today’s episode covers one simple problem—how to encode Ecto structs into JSON.

There are a few ways to do it, but using @derive in the struct’s definition to implement the Poison.Encoder protocol is the cleanest way.

Mateusz wrote a blog post which explains CSRF protection in Phoenix.

The :elasticsearch package now has better support for Elasticsearch 6.x+. Read more in the Upgrading Guide.

https://hex.pm/packages/ace/0.16.1

Blog post explaining how Botsquad.com’s interpreted DSL for writing conversational apps and chatbots works, from an Elixir point of view.

http://www.botsquad.com/2018/04/14/beyond-the-dsl/

Talking about pragmatic approaches to asynchronicity in Elixir and introducing Rihanna, a brand new database-backed job queue.

http://samueldavies.net/2018/04/18/asynchronicity-in-elixir-best-effort-vs-guaranteed-execution/

New release supports connecting to multiple Elasticsearch clusters in a single OTP app or umbrella.

Release Notes
Upgrading Guide

We open-sourced a tool we use to manage translations in web applications, iOS app and Android apps. The app is built with GraphQL, Absinthe, Ember.JS and Apollo.

https://github.com/mirego/accent