Amazon EventBridge Events

An event indicates a change in an environment such as an AWS environment or a SaaS partner service.

Events are represented as JSON objects and they all have a similar structure, and the same top-level fields.

▪ Amazon EventBridge Rules

A rule matches incoming events and sends them to targets for processing. A single rule can send an event to

multiple targets, which then run in parallel. An event pattern defines the event structure and the fields that a

rule matches.

▪ Amazon EventBridge Targets

A target is a resource or endpoint that EventBridge sends an event to when the event matches the event

pattern defined for a rule. The rule processes the event data and sends the relevant information to the target.

▪ Amazon EventBridge Event Buses

An event bus is a pipeline that receives events. Rules associated with the event bus evaluate events as they

arrive. A resource-based policy specifies which events to allow, and which entities have permission to create or

modify rules or targets for an event.

https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-what-is.html