Rate limit library. Currently implemented rate limits are

Fixed window rate limit

Fixed window limits—such as 3,000 requests per hour or 10 requests per day—are easy
to state, but they are subject to spikes at the edges of the window, as
available quota resets. Consider, for example, a limit of 3,000 requests per
hour, which still allows for a spike of all 3,000 requests to be made in
the first minute of the hour, which might overwhelm the service.

You can refer to google architecture docs
to read more about rate limits.


  • Fixed window (window not truncated, starts with first request)
  • Fixed window bucket variant (refill token with capacity at same rate)
  • Redis storage
  • Token bucket
  • Leaky bucket


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