Too Long; Didn't Read
Redis Pub/Sub messaging paradigm allows applications talk to each other through subscription to channels. Subscribers declare their interest in specific channels and Redis pushes messages to all subscribed clients without knowledge of what (if any) subscribers there may be. You can read more about Publish/Subscribe pattern on <a href="https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern" target="_blank">wikipedia</a>.