Event Streaming

Event streaming is the continuous capture and delivery of events - records of things that happened - as an ordered, persistent log that many consumers can read.

Each event is a discrete record, such as a price change, a new property listing, or a user search, and consumers read from the log at their own pace. Apache Kafka is the dominant event streaming platform: events are written to topics (named log partitions), and any number of consumer services can subscribe to a topic and process events independently. This decouples producers from consumers - a price change event can simultaneously update a database, trigger a user alert, and refresh a dashboard.

Event streaming enables event-driven architectures where services react to data changes in real time. For data-intensive applications - live price tracking, real-time market monitoring, or property alert systems - event streaming provides the infrastructure layer that connects data sources to multiple downstream consumers with minimal latency.