Events are messages in response to an action. The action can be anything from user interactions with your application to intra-service messages. They can come from internal and external sources.
CloudWatch events are system events that are logged in near real time in order to describe changes in the infrastructure. Simple rules are used to map events to streams for analysis.
Before you begin using CloudWatch Events, you should understand the following concepts:
- Events: A change in the AWS environment is indicated by an event. Events can be generated by AWS sources when their state undergoes any changes. AWS CloudTrail publishes events when an API call is made. Custom application-level events can be generated and published to CloudWatch Events. We can also set up scheduled events on a periodic basis. For a list of services that generate events, and sample events from each service, you can refer to CloudWatch Events Event Examples From Supported Services (https://docs.aws.amazon...