Five Code Paths Write the Same Subscription Row. On Purpose.

<p>In this guide, we explore system. Your transaction is pending. A timeout occurs. Now you're staring at a screen wondering if you just paid $1,000 twice or if your money

<p><em>You'd think events fire in the order things happen. They don't.</em></p> <p>I was building a Paddle integration last week. Subscription billing, nothing fancy. Customer

<p>I review a lot of webhook handlers. Roughly <strong>3 out of 5 either have a subtle signature-verification bug</strong> — or someone disabled verification entirely "to make it

<p>A customer can complete checkout once while your webhook handler receives the<br /> same event more than once. If every delivery creates access again, one purchase<br /> can

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<p>Your agent passed all the tests. It's been running in production for three weeks. And it has been quietly wrong the entire time.</p> <p>This is not a hypothetical. Galileo's

<p>A few weeks ago I published an article about an event-driven order pipeline I built in .NET with Kafka and Azure Service Bus. Someone left a comment that stopped me in my