Communication
How services talk: request and response, queues, and events nobody is waiting for.
4 chapters14 lessonsabout 1 hour
Three API styles with very different trade-offs in performance, flexibility, and tooling.
Async broker that decouples producers from consumers in time, scale, and failure.
One-to-many broadcast. Publishers emit events, any number of subscribers receive them.
Webhooks push events to you; polling has you repeatedly ask for updates.