Set Up EventBridge Event Bus:
Step 1: Open the Amazon EventBridge console and create a custom event bus. This bus will be used to handle user deletion events.
Step 2: Name the event bus appropriately (e.g.,user-deletion-bus).
Post Events on User Deletion:
Step 1: Modify the central user service to post an event to the custom EventBridge event bus whenever a user is deleted.
Step 2: Ensure the event includes relevant details such as the user ID and any other necessary metadata.
Create EventBridge Rules for Microservices:
Step 1: For each microservice that needs to delete user data, create a new rule in EventBridge that triggers on the user deletion event.
Step 2: Define the event pattern to match the user deletion event. This pattern should include the event details posted by the central user service.
Invoke Microservice Logic:
Step 1: Configure the EventBridge rule to invoke a target, such as an AWS Lambda function, which contains the logic to delete the user data from the microservice's data store.
Step 2: Each microservice should have its Lambda function or equivalent logic to handle the deletion of user data upon receiving the event.
Using Amazon EventBridge ensures a scalable, reliable, and decoupled approach to handle the deletion of user data across multiple microservices. This setup allows each microservice to independently process user deletion events without direct dependencies on other services.
References
AWS EventBridge Documentation
DynamoDB Streams and AWS Lambda Triggers
Implementing the Transactional Outbox Pattern with EventBridge Pipes(AWS Documentation)(Amazon Web Services, Inc.)(Amazon Web Services, Inc.)(AWS Documentation)(AWS Cloud Community).
