S3 Event Notifications
Configure S3 to publish events to Lambda, SQS, or SNS whenever specific actions occur on objects, enabling powerful reactive workflows.
Intro to S3 Event Notifications
Welcome to this lesson on S3 Event Notifications! This powerful feature allows your S3 buckets to automatically notify other AWS services when specific actions occur.
Think of it as setting up an alert system for your data. When a file is uploaded, deleted, or modified, S3 can tell another service to take action.
The Event Flow
S3 event notifications work by publishing an event message whenever a configured action happens in your bucket. These messages contain details about the event, such as the bucket name, object key, and event time.
- Object Created: When a new file is uploaded.
- Object Deleted: When a file is removed.
- Object Restore: When an archived object is restored.
These events enable powerful, reactive workflows for your applications.