Picture this: You’re transferring $500 to your friend through a banking app. You hit “Send,” and your phone immediately dies. When you turn it back on, you check your account—the money is gone from your balance, but your friend never received it.
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Building Distributed Counters for High-Traffic Systems
From simple incrementers to battle-tested architectures that handle millions of operations
You’ve probably implemented counters dozens of times. A simple count++ here, a database increment there. But what happens when your humble counter needs to handle millions of increments per second across multiple data centers? Welcome to the fascinating world of distributed counters.
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How Stripe Prevents Double Payments
Learn the engineering patterns that prevent duplicate charges and how to implement them in your payment systems
You’re checking out online. Click “Pay Now”. Nothing happens. Click again. Boom - charged twice.
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From Manual Testing to Automated Excellence: GitHub Actions
Turn your repository into an automated testing and deployment machine that catches bugs before they reach users
Think of GitHub Actions as your digital assistant that never sleeps. Every time something happens in your repository - like pushing code or creating a pull request - Actions can automatically run tasks for you.
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55 Million Requests Per Second: Inside Cloudflare's Magic
Picture this: it’s Black Friday, millions of shoppers worldwide are frantically clicking “Add to Cart” on their favorite websites, and somewhere in the world, a massive DDoS attack is trying to bring down critical infrastructure. Yet, the internet keeps humming along smoothly. How? The answer lies in one of the...
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