Hacking on a Ruby client for the new Arista Networks Command API

gistfile1.rb

[1] pry(main)> host, user, password = %w(EAPI_HOST EAPI_USER EAPI_PASSWORD).map { |n| ENV[n] }; nil
=> nil
[2] pry(main)> Arista::EAPI::Switch.new(host, user, password).version
=> {:model_name=>"DCS-7048T-A-R",
    :internal_version=>"4.12.0-1244071.EOS4120",
    :system_mac_address=>"00:1c:73:16:c2:c8",
    :serial_number=>"*redacted*",
    :mem_total=>4009152,
    :bootup_timestamp=>1368735672.686644,
    :mem_free=>1851640,
    :version=>"4.12.0",
    :architecture=>"i386",
    :internal_build_id=>"c25ec8ea-cb8f-40a8-af0b-d11eaa94d57c",
    :hardware_revision=>"01.04"}

Are you familiar with Hash#values_at?

Arista::EAPI::Switch.new(ENV.values_at(*%w(EAPI_HOST EAPI_USER EAPI_PASSWORD))

It'll change your life

Learn something new every day! Thanks, @chad.