Reliability & rate limiting
Retries, exponential backoff, circuit breakers, token buckets, and idempotent handlers.
GCRA generic cell rate algorithm in Python
Mock implementation of the Generic Cell Rate Algorithm (GCRA) for traffic shaping and rate limiting.
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…Token bucket rate limiter in Python (in-memory)
Implement a thread-safe in-memory token bucket rate limiter that throttles requests based on a steady refill rate.
import time
import threading
class TokenBucket:
def __init__(self, capacity, refill_rate, refill_interval=1.0):
self.capacity = capacity
self.tokens = capacity
self.refill_rate = refill_rate
self.refill_interval = refill_interval
self.last_refill = time.monotonic()
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Reliability & rate limiting — Python code examples
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This page collects reliability & rate limiting snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.
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