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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

How to Implement Message Visibility Timeout Renewal in Python

Simulate queue message visibility control with timeout renewal using a simple Python class that tracks received time and visibility state.

visibility-timeout queue sqs
Python 
import time
import uuid

class Message:
    def __init__(self, body, visibility_timeout=30):
        self.body = body
        self.visibility_timeout = visibility_timeout
        self.receipt_handle = str(uuid.uuid4())
        self.received_at = time.time()
        self.deleted = False

    def is_visible(self):
     …
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