My payment webhook silently failed on the first real transaction — and I built a tool to catch silent failures

I spent four months building ApiPulse, an uptime monitor for APIs, solo, in the evenings. This week I launched it. The first thing I did was pay for it myself. Why test with real money Configuration looks correct right up until it isn't. So I made a real €5 purchase with my own card to walk the full chain: checkout, payment provider, webhook, plan... Weiterlesen