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README: describe instrumentation

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Aaron Suggs 2012-07-28 22:29:21 -04:00
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README.md
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@ -95,6 +95,15 @@ Similarly for blacklisted responses:
## Logging & Instrumentation
Rack::Attack uses the [ActiveSupport::Notifications](http://api.rubyonrails.org/classes/ActiveSupport/Notifications.html) API if available.
You can subscribe to 'rack.attack' events and do whatever:
ActiveSupport::Notifications.subscribe("rack.attack") do |hash|
# Log it
# Graph it using statsd
end
## Motivation
Abusive clients range from malicious login crackers to naively-written scrapers.