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Reliability & rate limiting

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

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Reliability & rate limiting easy

Build a Rate Limiter Decorator in Python

This code defines a reusable rate limiter decorator that caps function calls within a sliding time window using a deque and monotonic time.

rate-limiting decorator time
Python 
import time
from collections import deque


def rate_limiter(max_calls: int, period: float):
    calls = deque()

    def decorator(func):
        def wrapper(*args, **kwargs):
            now = time.monotonic()
            while calls and now - calls[0] >= period:
                calls.popleft()
            if len(ca…
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