I've just released a large update to Steemex, an open source websockets Steem client library for Elixir/Erlang.

Changelog

• Steemex.Streamer provides a simple and convenient subscription interface to the stream of new Steem blockchain operations
• streaming handler example module
• functions for witnesses database API methods
• functions for accounts database API methods
• functions for market API methods
• functions for follows API methods
• Modules and structs are implemented for most types of operations
• docs and typespecs for all database API

Repos and docs

• github
• hex.pm
• docs

Steemex is used for data collection on Steempunks.

Example of an operation stream handler module

defmodule Steemex.OpsHandlerExample do
  use GenServer
  require Logger

  @doc"""
  Starts the handler module
  """
  def start_link do
    GenServer.start_link(__MODULE__, %{}, name: __MODULE__)
  end

  def init(config \\ %{}) do
    {:ok, config}
  end

  def handle_info({:comment, data}, state) do
    Logger.info("New post or comment:  #{inspect(data)}" )
    {:noreply, state}
  end

  def handle_info({:vote, data}, state) do
    Logger.info("New vote:  #{inspect(data)}" )
    {:noreply, state}
  end


  def handle_info({op_type, op_data}, state) do
    Logger.info("New operation #{op_type}:  #{inspect(op_data)}" )
    {:noreply, state}
  end


end

Roadmap

• Investigate using GenStage
• Add more utility functions
• Add more types and structs
• Add transaction broadcast

About Elixir

Elixir is a functional programming language with superior concurrency primitives, distributed computation and fault tolerance capabilities based on Erlang/OTP.
Personally, I am really happy with my bet on Elixir to build cryptotokens related apps and strongly recommend every developer to try it.

Learning resources:

• ElixirConf Jose Valim Keynote
• ElixirConf 2016 Chris McCord Keynote
• Elixir School
• Elixir Crash Course

(∩｀-´)⊃━炎炎炎炎炎