Integrations - Technology
Pub/Sub
(Publisher/Subscriber)
An integration mechanism where one system publishes something and any defined systems receive it
What's it for?
Lets one system publish an update once and any interested systems receive it automatically.
For example…
When stock levels change, warehouse, website and reporting all subscribe to the same update feed
An order service publishes an OrderPlaced event and stock, email and analytics services each receive it through pub/sub without the order service calling them directly
Think of it like…
A mailing list: when an update is sent out, everyone who subscribes gets a copy