Reference library

Reliability & rate limiting

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

3 matches

How to Implement an Adaptive Rate Limiter in Python

Build an adaptive rate limiter that adjusts request intervals dynamically based on recent error rates, slowing down when failures spike.

rate-limiting backoff adaptive

Python

import time
import random

class AdaptiveRateLimiter:
    """Simple adaptive rate limiter that reduces requests when error rate is high."""
    
    def __init__(self, min_interval=0.1, max_interval=2.0, error_threshold=0.3):
        self.min_interval = min_interval
        self.max_interval = max_interval
        sel…

12 0 Open

Reliability & rate limiting easy

How to Mock a Try Confirm Cancel Pattern in Python

Define a simple class with confirm and cancel methods, execute a try confirm with error handling, and print the final state.

try-except mock class

Python

class TCC:
    def __init__(self):
        self.confirmed = False
        self.cancelled = False

    def confirm(self):
        self.confirmed = True
        return "confirmed"

    def cancel(self):
        self.cancelled = True
        return "cancelled"

    def try_confirm(self):
        try:
            result =…

13 0 Open

Reliability & rate limiting easy

Rate Limiting with a Simple Python RateLimiter Class

A beginner-friendly Python rate limiter that tracks call timestamps and enforces a maximum number of calls within a rolling time window, with a helper to validate positive integers.

rate-limiting time api

Python

import time

class RateLimiter:
    def __init__(self, max_calls, period_seconds):
        self.max_calls = max_calls
        self.period_seconds = period_seconds
        self.calls = []

    def is_allowed(self):
        now = time.time()
        while self.calls and now - self.calls[0] >= self.period_seconds:
      …

13 0 Open

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