Webhooks are the ultimate escape hatch to systems integration. Event publishing that doesn't require you to know much about who is listening on the other end. It's trivial to create a publisher or consumer (bring your own HTTP server/client). On the surface, Webhooks seem antithetical to the rise of the cloud native – it's easier than ever to set up servers that long-poll, managed pub/sub infrastructure, or simple event queues. But the opposite might be happening.