pubsubjärjestelmässä
A pub/sub system, short for publish-subscribe system, is a messaging pattern used in software architecture. It facilitates asynchronous communication between different parts of an application or between different applications. In a pub/sub system, there are three main components: publishers, subscribers, and a message broker. Publishers produce messages and send them to the broker without knowing who will receive them. Subscribers express interest in specific types of messages and receive them from the broker when they are published. The message broker acts as an intermediary, receiving messages from publishers and routing them to the relevant subscribers.
This decoupling is a key advantage of pub/sub. Publishers don't need to know about subscribers, and subscribers