The text provides a detailed overview of how to set up and utilize AWS CloudWatch Events and EventBridge for managing event streams in microservices systems. It explains the importance of configuring event triggers to notify DevOps teams about errors in APIs and describes how AWS developed CloudWatch Events and EventBridge to address this need. These services allow users to deliver data to a target upon specific system events, such as operational changes or logging events. The text outlines the process of creating event buses, applying rules to these buses, and selecting event targets like Lambda functions, which are triggered when certain patterns are detected. It also highlights the ability to process large data sets and gain microservice observability through content-based filtering in EventBridge. The example provided demonstrates setting up a rule to trigger a Lambda function when invalid input is detected at an API Gateway, emphasizing the need for further data processing to distinguish between malicious attacks and simple errors. Additionally, the text suggests using external tools like Coralogix for analyzing API data and detecting critical issues.