Unable to get Throttling to work

[julienbfabre]

I have the following in config/initializers/rack_attack.rb:

class Rack::Attack

  # Throttle all requests by IP (60rpm)
  #
  # Key: "rack::attack:#{Time.now.to_i/:period}:req/ip:#{req.ip}"
  throttle('req/ip', limit: 300, period: 5.minutes) do |req|
    req.ip unless req.path.start_with?('/assets')
  end

  ### Prevent Brute-Force Attacks ###

  # Throttle any POST requests by IP address
  #
  # Key: "rack::attack:#{Time.now.to_i/:period}:pink/posts/ip:#{req.ip}"
  throttle('pink/posts/ip', limit: 1, period: 2.seconds) do |req|
    req.ip if req.post?
  end

end

and yet i keep getting millions of requests from the same IP, am i missing something?

i've tried doing it like this (not as a class like above, i don't know which one is correct, the readme is like below but the example configuration is like above):

# Throttle all requests by IP (60rpm)
#
# Key: "rack::attack:#{Time.now.to_i/:period}:req/ip:#{req.ip}"
Rack::Attack.throttle('req/ip', limit: 300, period: 5.minutes) do |req|
  unless req.path.start_with?('/assets')
    Rails.logger.error("Rack::Attack Too many requests from IP: #{req.ip}")
    req.ip
  end
end

### Prevent Brute-Force Attacks ###

# Throttle any POST requests by IP address
#
# Key: "rack::attack:#{Time.now.to_i/:period}:pink/posts/ip:#{req.ip}"
Rack::Attack.throttle('pink/posts/ip', limit: 1, period: 2.seconds) do |req|
  if req.post?
    Rails.logger.error("Rack::Attack Too many POSTS from IP: #{req.ip}")
    req.ip
  end
end

but still no luck. What am i doing wrong?