redis.ex

defmodule Redis do
  @name {:global, :redis}

  def start_link do
    Agent.start_link(&Map.new/0, name: @name)
  end

  def set(key, value) do
    Agent.update(@name, &Map.put(&1, key, value))
  end

  def get(key) do
    Agent.get(@name, &Map.get(&1, key))
  end
end