Reference library

Reliability & rate limiting

Retries, exponential backoff, circuit breakers, token buckets, and idempotent handlers.

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Reliability & rate limiting medium

GCRA generic cell rate algorithm in Python

Mock implementation of the Generic Cell Rate Algorithm (GCRA) for traffic shaping and rate limiting.

gcra rate-limiting traffic-shaping
Python 
from collections import deque
import time

class GCRA:
    def __init__(self, rate, burst):
        self.tau = burst
        self.T = rate
        self.t = 0
        self.LCT = 0

    def add_cell(self, arrival_time):
        if arrival_time <= self.t:
            return False
        arrived_early = (arrival_time - s…
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