AirportEvents blog post: http://jpettersson.com/airport-events-ruby-gem/

example-usage.rb

require 'airport_events'

# Create a new Watcher instance and set up some event listeners.
watcher = AirportEvents::Watcher.new

watcher.on :connected do |ssid, date|
  puts "Connected to #{ssid} on #{date}"
end

watcher.on :disconnected do |date|
  puts "Disconnected on #{date}"
end

# Start the watcher, which runs in a separate Thread.
watcher.start

# Keep program alive until interrupted (For instance: CTRL + C).
interrupted = false
trap("INT") { interrupted = true }

while true do
  exit if interrupted
  sleep 0.1
end

example.json

[
  {
    "ssid": "orca",
    "connected_at": "2013-02-24T22:35:54+00:00",
    "disconnected_at": "2013-02-24T22:47:38-05:00"
  },
  {
    "ssid": "beluga",
    "connected_at": "2013-02-24T22:48:23-05:00",
    "disconnected_at": null
  }
]