Class: AIHype::RateLimiter

Inherits:
Object
  • Object
show all
Defined in:
lib/aihype/rate_limiter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(requests_per_minute: 50, window_size: 60) ⇒ RateLimiter

Returns a new instance of RateLimiter.



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# File 'lib/aihype/rate_limiter.rb', line 9

def initialize(requests_per_minute: 50, window_size: 60)
  @requests_per_minute = requests_per_minute
  @window_size = window_size # seconds
  @requests = []
  @mutex = Mutex.new
end

Instance Attribute Details

#requests_per_minute ⇒ Object (readonly)

Returns the value of attribute requests_per_minute.



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# File 'lib/aihype/rate_limiter.rb', line 7

def requests_per_minute
  @requests_per_minute
end

#window_size ⇒ Object (readonly)

Returns the value of attribute window_size.



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# File 'lib/aihype/rate_limiter.rb', line 7

def window_size
  @window_size
end

Instance Method Details

#current_count ⇒ Object

Get current request count in window



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# File 'lib/aihype/rate_limiter.rb', line 41

def current_count
  @mutex.synchronize do
    now = Time.now
    @requests.reject! { |time| now - time > @window_size }
    @requests.length
  end
end

#reset ⇒ Object

Reset the rate limiter



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# File 'lib/aihype/rate_limiter.rb', line 50

def reset
  @mutex.synchronize do
    @requests.clear
  end
end

#throttle ⇒ Object

Wait if necessary to respect rate limits, then record request



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# File 'lib/aihype/rate_limiter.rb', line 17

def throttle
  @mutex.synchronize do
    now = Time.now

    # Remove requests outside the current window
    @requests.reject! { |time| now - time > @window_size }

    # If at limit, wait until oldest request expires
    if @requests.length >= @requests_per_minute
      oldest_request = @requests.first
      sleep_time = @window_size - (now - oldest_request) + 0.1 # Add small buffer
      sleep(sleep_time) if sleep_time > 0

      # Clean up again after sleeping
      now = Time.now
      @requests.reject! { |time| now - time > @window_size }
    end

    # Record this request
    @requests << now
  end
end