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You have some code that handles placing an order. This could be an HTTP API or a message handler. You made it idempotent. You added a unique constraint on some kind of message ID. And somehow… you still end up double charging the customer’s credit card. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. Idempotent You did everything right. You have idempotency. You have an inbox table and a unique constraint on that message ID. Your handler should be exactly once, right? Wrong. And… Read More »Your Idempotent Code Is Lying To You

Software development context is the real bottleneck, not writing code. AI can generate code fast, but without context, boundaries, and language, you get coupling and brittle systems. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. With AI, I think people are taking a leap that is fundamentally wrong. It is not about producing cheap code. I do not think that has ever been the bottleneck. The bottleneck has been context. If you have watched enough of my videos, you probably know my slogan is… Read More »Context Is the Bottleneck in Software Development