Amazon EventBridge
Amazon EventBridge is a serverless event bus that makes it easy to connect applications together using data from your own applications, Software-as-a-Service (SaaS) applications, and Amazon Web Services services. EventBridge delivers a stream of real-time data from a variety of event sources and routes that data to targets like Amazon Lambda. You can set up routing rules to determine where to send your data to build application architectures that react in real time to all of your data sources. EventBridge makes it easy to build event-driven applications because it takes care of event ingestion and delivery, security, authorization, and error handling for you.
Benefits
Write less code
EventBridge makes it easy to connect applications together because you can ingest, filter and deliver events without writing custom code. EventBridge automatically routes events from their source to one or more supported Amazon Web Services service targets, such as Amazon Lambda and Amazon Kinesis Data Streams.
Easily build event-driven architectures
EventBridge simplifies the process of building event-driven architectures. With EventBridge, your event targets don’t need to be aware of event sources because you can filter and publish directly to EventBridge. There is no set up required. Event driven architectures are loosely coupled and distributed, which improves developer agility as well as application resiliency.
Reduce operational overhead
With EventBridge, there are no servers to provision, patch, and manage and there is no software to install, maintain, or operate. EventBridge automatically scales based on the number of events ingested, and you pay only for events published by your Amazon Web Services or SaaS applications. EventBridge has built-in distributed availability and fault-tolerance.
How it works
EventBridge connects applications using events. An event is a signal that a system’s state has changed, such as a change in the status of a customer support ticket. EventBridge makes it easy to build resilient event-driven applications using data from a wide variety of event sources.

Get started building with Amazon EventBridge in the Amazon Web Services Management Console.

Get a deeper understanding of EventBridge in the Developer Guide.